MOISTURE-CURRABLE SILYLATED POLYMERIC COMPOSITION AND SEALANT COMPRISING THEREOF

Abstract

CLEAR, NON-YELLOWING, MOISTURE-CURRABLE COMPOSITION AND METHOD OF MANUFACTURING THEREOF. This document provides a clear, transparent, pale yellow, non-yellowing moisture-curable silylated polymer composition containing an alkoxysilyl-containing polymer, a light stabilizer, a sterically hindered amine, a silicon compound containing a conjugated C=C group, an adhesion promoter, and a curing catalyst. A method of manufacturing the moisture-curable composition and a sealant comprising the same are also provided.

Description

"MOISTURE-CURRABLE SILYLATED POLYMERIC COMPOSITION AND SEALANT COMPRISING THEREOF" CROSS-REFERENCE TO RELATED ORDERS

[001] This application claims priority over U.S. Serial No. 62 / 969,860, filed February 4, 2020, the contents of which are incorporated herein by reference. FIELD OF THE INVENTION

[002] This invention relates to moisture-curable alkoxysilyl-containing polymer compositions that are clear, transparent, pale yellow in color and not yellowish and exhibit good adhesion to a variety of different substrates. The inventive alkoxysilyl-containing polymer compositions can be used in formulating coatings, adhesives or sealants in industrial and consumer applications, including construction, electronics, marine and transportation. BACKGROUND OF THE INVENTION

[003] In the field of silicon-containing sealants and adhesives, various formulations are desired to be transparent (optically clear) and pale yellow in color and to have good adhesion to various substrates. The color and transparency of these sealant materials can be negatively affected over time due to exposure of these materials, after application, to ultraviolet light, especially exposure to sunlight.

[004] Transparent, moisture-curable silylated polyurethanes or silylated polyethers having good adhesion to various plastic, ceramic, or metal substrates and a pale yellow color are difficult to prepare. Many of these silane-containing polyurethanes and silylated polyethers used in sealants, coatings, or adhesives are composed of polyether structures. Polyethers can undergo degradation reactions when exposed to ultraviolet light (radiation) and oxygen in the air. To protect the polyether portions from exposure to ultraviolet light, absorbers and Petition 870240080757, dated 09 / 20 / 2024, page 13 / 115 2 / 74 UV stabilizers are used in sealant, adhesive, or coating compositions. Good adhesion to various ceramic and metal substrates can be achieved using adhesion promoters, especially amino-functional alkoxysilanes. However, many common classes of UV absorbers and amino-functional alkoxysilane adhesion promoters become discolored after preparation and during use. Benzophenol, benzotriazole, salicylate, substituted tolyl, and metal chelate UV absorbers in combination with amino-functional alkoxysilane adhesion promoters discolor during storage of the composition containing these additives. Benzotriazole derivatives are often yellow in color, further increasing the discoloration of the compositions.

[005] Many benzotriazole-type UV absorbers are liquids, which makes them easy to incorporate into adhesive, sealant, and coating compositions. However, when a curing catalyst, particularly metal catalysts or metal catalysts in combination with amines, is used, the compositions typically yellow within the first few weeks or months after exposure to ultraviolet light. While not wishing to be limited by theory, this yellowing is believed to be due to an interaction between the benzotriazole UV absorber and the metal catalyst present in the sealant formulations.

[006] Although there has been an effort to replace benzotriazole-type UV absorbers with oxaldianilide UV absorbers in clear sealants based on silylated prepolymer, these types of oxaldianilide UV absorbers are only available in solid form, and compositions containing these additives may discolor upon exposure to ultraviolet light. In order to obtain good dispersion in moisture-curable compositions, solid additives, such as UV absorbers, are often heated in solvent or plasticizer before being introduced into the kettle, so as to effectively incorporate them into moisture-curable compositions, or alternatively, they can be melted in situ during production. Petition 870240080757, dated 09 / 20 / 2024, page 14 / 115 3 / 74 heating the mixer to a temperature of 100 °C or more. These methods for better dispersion of additives are inefficient and increase processing costs due to longer residence times in the kettle, less active materials in the kettle, and higher energy consumption.

[007] Consequently, there remains a need to provide moisture-curable silylated polymer compositions that are clear, transparent, pale yellow in color and not yellowish when exposed to ultraviolet light (radiation) in the presence of air and that have good adhesion to a variety of different substrates. SUMMARY OF THE INVENTION

[008] The present invention relates to moisture-curable silylated polymer compositions that are clear, transparent, pale yellow in color and not yellowish and adhere to a variety of different substrates.

[009] The present invention overcomes the aforementioned disadvantages by utilizing a silicon compound having a conjugated structure that allows the use of UV absorbers in moisture-curable silylated polymer compositions and enables these compositions to be clear, transparent, have a weak yellow color and not yellowish, especially upon exposure to ultraviolet light (radiation) and air, and to have good adhesion. In one aspect, the compositions are liquid compounds, which require less energy and shorter processing times during composition preparation, which can lead to reductions in processing costs.

[010] In another aspect, the invention relates to a clear, transparent, pale yellow, non-yellowing moisture-curable silylated polymer composition comprising: (a) an alkoxysilyl-containing polymer having the general formula (I): Petition 870240080757, dated 09 / 20 / 2024, p. 15 / 115 4 / 74 R5--A--CN R3—ÍWOR1)^ R2ac(I) where each A is independently -O- or -N(R4)-; Each R1 is independently either a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; Each R2 is independently methyl or phenyl: Each R3 is independently either a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; Each R4 is independently hydrogen, a straight-chain alkyl group of 1 to 6 carbon atoms, a branched-chain alkyl group of 3 to 6 carbon atoms, a cycloalkyl group of 5 to 8 carbon atoms, a phenyl group, or a -R3-Si(R2)a(OR1)3-a group; R5 is a bivalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is independently a straight-chain alkylene group of 2 to 6 carbon atoms, a branched-chain alkylene group of 3 to 6 carbon atoms or a -C(=O)NH-R0-NHC(=O)- group, where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms or an aralkylene group of 7 to 16 carbon atoms, each R7 is independently a straight-chain alkylene group of 2 6 carbon atoms Petition 870240080757, dated 09 / 20 / 2024, p. 16 / 115 5 / 74 or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH—R9O R9O—Ír7O-)—R6' 'e, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts a, b, c, d, e, and m are integers where each is independently 0 or 1, b is 0 or 1, c is 2 or 3, each d is independently from 20 to 400, each e is independently from 0 to 100, and m is 0 or 1, with the condition that if R6 is a -C(=O)NH-R0-NHC(=O)- group, then A is -N(R4) and b is 0; (a) a UV light stabilizer package comprising: (i) at least one light stabilizer having formula (III): (III) in which R10 is hydrogen or chlorine; R11 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a group Petition 870240080757, dated 09 / 20 / 2024, p. 17 / 115 6 / 74 R14, where R14 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a -OR15 group, where R15 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R12 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, or an -OR16 group, where R16 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R13 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a -OR39 group, where R39 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms or a (CH2)fC(=O)O(CgH2gO)hR17, where R17 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms or a group of formula (IV): Petition 870240080757, dated 09 / 20 / 2024, p. 18 / 115 7 / 74 (CH2)fC(=O)- (IV) with the condition that when R17 is the formula group (IV), then h is 1 a 15; and the subscripts f, g, and h are integers where f is from 0 to 6, g is from 2 to 4, and h is from 0 to 15; or a light stabilizer having the formula (V): R22(V) where each R18, R19, R20, R21, R22 and R23 is independently hydrogen, a straight-chain alkyl group of 1 to 16 carbon atoms, a branched-chain alkyl group of 3 to 16 carbon atoms or a -OR24, where each R24 is independently a straight-chain alkyl group of 1 to 16 carbon atoms or a branched-chain alkyl group of 3 to 16 carbon atoms; (ii) at least one sterically hindered amine compound having formula (VI): R25 where each A1 is independently selected from the group consisting of groups Petition 870240080757, dated 09 / 20 / 2024, p. 19 / 115 8 / 74 straight-chain alkenylene with 1 to 10 carbon atoms, branched-chain alkylene groups with 3 to 10 carbon atoms, or a single chemical bond; Each R25 and R27 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a hydroxyl group, an amino group, -NR382, where R38 is independently hydrogen, a straight-chain alkyl group of 1 to 6 carbon atoms, or a branched-chain alkyl group of 3 to 6 carbon atoms; each R26 is independently a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkylene group of 3 to 10 carbon atoms, an arylene group of 6 to 10 carbon atoms, an aralkylene group of 7 to 10 carbon atoms, or a divalent organic group of 1 to 20 carbon atoms containing at least one divalent oxygen atom forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group, a secondary amide group, a primary amino group, a secondary amino group, or a tertiary amino group; and the subscript i is an integer from 1 to 100; or a sterically hindered amine compound having the formula (VII): R29 J (VII) in which R28 is hydrogen, a monovalent or polyvalent hydrocarbon group containing from 1 to 16 carbon atoms, a monovalent or polyvalent organic group of 1 to 24 carbon atoms containing at least one triazinyl group, pyrimidinyl group, pyridinyl group, 2,4,6-trione-1,3,5-triazinyl group, atoms of Petition 870240080757, dated 09 / 20 / 2024, p. 20 / 115 9 / 74 divalent oxygen forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group or a secondary amide group, a primary amino group, a secondary amino group or a tertiary amino group; Each R29, R30, R32 and R33 is independently a straight-chain alkyl group of 1 to 6 carbon atoms or a branched-chain alkyl group of 3 to 6 carbon atoms; Each R31 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, or an aralkyl group of 7 to 10 carbon atoms; and the subscript j is an integer from 1 to 5. (iii) a silicon compound containing a conjugated C=C group having the general formula (VIII): A2Si(CH3)k(OR35)3-k (VIII) where A2 is CH2=C(CH3)C(=O)OCH2CH2CH2- or phenyl; R35 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 or 4 carbon atoms; and 0.1 to about 3; (c) an adhesion promoter containing an alkoxysyl group; and (d) a curing catalyst.

[011] Also provided in this document is a method for manufacturing a clear, transparent, pale yellow, non-yellowing moisture-curable composition comprising mixing an alkoxysilyl-containing polymer (a), a UV light stabilizer package (b), an adhesion promoter (c) and a curing catalyst (d). DETAILED DESCRIPTION OF THE INVENTION Petition 870240080757, dated 09 / 20 / 2024, page 21 / 115 10 / 74

[012] The inventors in this document have unexpectedly discovered that incorporating a silicon compound having a conjugated C=C group into a UV light stabilizer package further comprising a light stabilizer and a sterically hindered amine generated a synergistic effect whereby the color of a moisture-curable alkoxysilyl-containing composition was reduced upon exposure to ultraviolet light (radiation) and thus reduced or eliminated yellowing of the composition when exposed to environmental conditions such as air and sunlight. Therefore, the composition provided in this document can provide the desired non-yellowing properties for a clear, transparent, and pale yellow-colored moisture-curable alkoxysilyl-containing polymer composition, thus making such clear and transparent compositions suitable for many industrial and consumer adhesives, sealants, and coatings.

[013] In the descriptive report and claims of this document, the following terms and expressions should be understood as indicated.

[014] As used in this document, “yellowing” refers to an increase in color intensity in the yellow region of the visible light spectrum of a moisture-curable alkoxysilyl-containing composition when stored in its container or applied to a substrate, cured, and exposed to environmental conditions, especially air and ultraviolet radiation. The color in the yellow region of the visible light spectrum has a wavelength of 560 nanometers to 590 nanometers. The International Commission on Illumination (French Commission internationale de l'éclairage) defines the color space, CIE 1976 L*a*b* color space, which is used to measure the colors of objects. CIELAB colors are defined relative to the white point of the CIEXYZ space from which they were converted. CIELAB values ​​do not define absolute colors unless the white point is also specified.The white dot is a standard, and the International Color Consortium L*a*b* refers to the CIE illuminated standard D50 as defined by CIE in 1976 for communication purposes. Petition 870240080757, dated 09 / 20 / 2024, page 22 / 115 11 / 74 color and is widely adopted today in many industries for color control and management. In the L*a*b* color space, L* indicates lightness and a* and b* are chromaticity coordinates. a* and b* are color directions: +a* is the red axis, -a* is the green axis, +b* is the yellow axis, and -b* is the blue axis.

[015] The extent of “yellowing” is determined by measuring the amount of increase in the +b* direction of the color before and after exposure to Xenon arc lamps in a Q-Sun Xenon test chamber according to ISO 48922:2013 Annex B Method B cycle B7 for 7 days. Samples were tested using DIE-LAB by Minolta colorimeter (L*a*b*). The Minolta white calibration plate has a b* value of 4.25. The cured clear composition sheet was placed on the surface of the white calibration plate to measure the color. The b* value was recorded and compared before and after exposure in the Xenon test chamber.

[016] As used in this document, “transparency” is the physical property of allowing light to pass through a material without being scattered. Total transmittance is the ratio of transmitted light to incident light. The transparency of the composition is determined by measuring haze, in accordance with ASTM D-1003 - Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics.

[017] As used in this document, “clear” means the transparency of a composition to light, as determined in accordance with ASTM D-1003 - Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics.

[018] As used in this document, “turbidity” is a measure of the hazy appearance of a transparent solid as determined in accordance with ASTM D-1003 Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics.

[019] As used in this document, “no yellowing” refers to no positive increase in the b* value of the composition after exposure to a Xenon arc lamp in a Q-Sun Xenon test chamber according to Petition 870240080757, dated 09 / 20 / 2024, p. 23 / 115 12 / 74 with ISO 4892-2:2013 Appendix B Method B cycle B7 for 7 days.

[020] The singular forms “o / a” and “um / uma” include the plural, and reference to a particular numerical value includes at least that particular value, unless the context clearly indicates otherwise.

[021] Except in working examples, or where otherwise indicated, all figures expressing quantities of materials, reaction conditions, durations of time, quantified properties of materials, and so forth, set forth in the descriptive report and claims shall be understood as being modified in all cases by the term “about”.

[022] All methods described in this document can be carried out in any appropriate order, unless otherwise indicated in this document or otherwise clearly contradicted by the context. The use of any and all examples, or exemplary language (e.g., “such as”) provided in this document, is intended merely to better clarify the invention and does not represent a limitation on the scope of the invention, unless otherwise claimed.

[023] No language in the descriptive report should be interpreted as an indication of any unclaimed element as essential to the practice of the invention.

[024] The terms “comprising”, “including”, “containing”, “characterized by” and grammatical equivalents thereof are inclusive or open terms that do not exclude additional non-recited elements or steps of the method, but will also be understood to include the more restrictive terms “consisting of” and “consisting essentially of”.

[025] It will be understood that any numerical range cited in this document includes all sub-ranges within that range and any combination of the various endpoints of such ranges or sub-ranges, whether described in the examples or otherwise. Petition 870240080757, dated 09 / 20 / 2024, p. 24 / 115 13 / 74th place in the descriptive report.

[026] As used in this document, integer values ​​of stoichiometric subscripts refer to molecular species and non-integer values ​​of stoichiometric subscripts refer to a mixture of molecular species on an average molecular weight basis, an average numerical basis, or a mole fraction basis.

[027] In the description that follows, all percentages by weight are based on the total percentage by weight of organic materials, unless otherwise stated, and all ranges provided in this document include all subranges between them and any combination of ranges and / or subranges between them.

[028] It will further be understood that any compound, material or substance that is expressly or implicitly disclosed in the descriptive report and / or cited in a claim as belonging to a group of structurally, compositionally and / or functionally related compounds, materials or substances includes individual representatives of the group and all combinations thereof.

[029] As used in this document, the expression “hydrocarbon group” or “hydrocarbon radical” means any hydrocarbon composed of hydrogen and carbon atoms from which one or more hydrogen atoms have been removed and includes alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, cycloalkynyl, aryl, aralkyl and arenyl groups. The groups may be composed of hydrocarbon groups containing at least one heteroatom and, more specifically, a hydrocarbon group containing at least one heteroatom of oxygen, nitrogen or sulfur.

[030] As used in this document, the term “alkyl” means any monovalent, saturated straight-chain or branched-chain hydrocarbon group in which a hydrogen atom has been removed; the term “alkenyl” means any group Petition 870240080757, dated 09 / 20 / 2024, p. 25 / 115 14 / 74 a monovalent straight-chain or branched-chain hydrocarbon containing one or more carbon-carbon double bonds where the attachment site of the group may be on a carbon-carbon double bond or elsewhere; and, the term “alkynyl” means any monovalent straight-chain or branched-chain hydrocarbon group containing one or more carbon-carbon triple bonds and, optionally, one or more carbon-carbon double bonds, where the attachment site of the group may be on a carbon-carbon triple bond, a carbon-carbon double bond or elsewhere; the term “aryl” means an aromatic hydrocarbon in which a hydrogen atom has been removed; the term “aralkyl” means a hydrocarbon composed of both aryl groups and an alkyl group in which a hydrogen atom has been removed. Representative and non-limiting examples of alkyl groups include methyl, ethyl, propyl and isobutyl.Examples of alkenyls include vinyl, propenyl, allyl, metalyl, ethylylidene norbornane, ethylidene norbornyl, ethylylidene norbornene, and ethylidene norbornenyl. Examples of alkynyls include acetylenyl, propargyl, and methylacetylenyl. An example of an aryl is phenyl. Examples of aralkyls include benzyl and phenethyl.

[031] As used in this document, the term “alkylene” means any divalent, saturated straight-chain or branched-chain hydrocarbon group in which two hydrogen atoms have been removed. Examples of alkylene groups include methylene (-CH2-), ethylene (-CH2CH2-), propylene (-CH2CH2CH2-), and 2-methylpropylene (CH2CH(CH3)CH2-). It should be understood that when naming a compound, it is common to use nomenclature to use the name for the divalent alkyl group, which is an alkyl group where one addition hydrogen has been removed, in the name, such as 3-aminopropyltrimethoxysilane, where propyl is a divalent alkyl group and equivalent to propylene. The term “arylene” refers to a cyclic aromatic hydrocarbon in which two hydrogen atoms have been removed.

[032] As used in this document, the words “example” and “exemplificative” mean an example or illustration. The words “example” or Petition 870240080757, dated 09 / 20 / 2024, page 26 / 115 15 / 74 “exemplificative” does not indicate a preferred key, aspect, or modality. The word “or” is intended to be inclusive rather than exclusive, unless the context suggests otherwise. As an example, the phrase “A employs B or C” includes any inclusive permutation (e.g., A employs B; A employs C; or A employs both B and C).

[033] It will be understood in this document that the repeating unit (R8O) may be in any position along the polymer chain group (R7O)d(R8O)c2, including at the beginning of the polymer chain group, at the end of the polymer chain group, or in any position between the beginning and the end of the polymer chain group.

[034] It will also be understood in this document that any of the components of the invention in this document, as described by any specific genus or species detailed in the examples section of the descriptive report, may be used in one embodiment to define a respective alternative definition of any end of a range described elsewhere in the descriptive report with respect to that component and may, therefore, in a non-limiting embodiment, be used to supplant that end of a range described elsewhere.

[035] It will further be understood that any compound, material or substance that is expressly or implicitly disclosed in the descriptive report and / or cited in a claim as belonging to a group of structurally, compositionally and / or functionally related compounds, materials or substances includes individual representatives of the group and all combinations thereof.

[036] Reference will be made to substances, components or ingredients in existence at the time just before first contact, formed in situ, mixed, or mixed with one or more other substances, components or ingredients in accordance with this disclosure. A substance, component or ingredient identified as a reaction product, resulting mixture or Petition 870240080757, dated 09 / 20 / 2024, page 27 / 115 16 / 74 similar substances may acquire an identity, property, or character through a chemical reaction or transformation during the course of contact, in situ formation, mixing, or blending operation if conducted in accordance with this disclosure with the application of good judgment and common skill of a person skilled in the art (e.g., a chemist). The transformation of chemical reagents or starting materials into chemical products or final materials is a constantly evolving process, independent of the speed at which it occurs. Thus, as such a transformative process is underway, there may be a mixture of initial and final materials, as well as intermediate species which may be, depending on their kinetic life, easy or difficult to detect with current analytical techniques known to those skilled in the art.

[037] Reagents and components referred to by chemical name or formula in the descriptive report or claims of this document, whether referred to in the singular or plural, can be identified as they exist before coming into contact with another substance referred to by chemical name or chemical type (e.g., another reagent or a solvent). Preliminary and / or transitional chemical changes, transformations, or reactions, if any, that occur in the resulting mixture, solution, or reaction medium can be identified as intermediate species, master batches, and the like, and may have a distinct use from the use of the reaction product or final material. Other subsequent changes, transformations, or reactions may result from the combination of the specified reagents and / or components under the conditions required in accordance with this disclosure.In these other subsequent changes, transformations, or reactions, the reactants, ingredients, or components to be combined can identify or indicate the reaction product or the final material.

[038] The present invention relates to a moisture-curable silylated polymer composition comprising: (a) an alkoxysilyl-containing polymer having the general formula (I): Petition 870240080757, dated 09 / 20 / 2024, p. 28 / 115 17 / 74 R5 --A--CN R3—Si(OR1)3-a R2ac(I) where each A is independently -O- or -N(R4); Each R1 is independently either a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; Each R2 is independently methyl or phenyl: Each R3 is independently either a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; Each R4 is independently hydrogen, a straight-chain alkyl group of 1 to 6 carbon atoms, a branched-chain alkyl group of 3 to 6 carbon atoms, a cycloalkyl group of 5 to 8 carbon atoms, a phenyl group, or a -R3-Si(R2)a(OR1)3-a group; R5 is a bivalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is independently a straight-chain alkylene group of 2 to 6 carbon atoms, a branched-chain alkylene group of 3 to 6 carbon atoms or a -C(=O)NH-R0-NHC(=O)- group, where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms or an aralkylene group of 7 to 16 carbon atoms, each R7 is independently a straight-chain alkylene group of 2 6 carbon atoms Petition 870240080757, dated 09 / 20 / 2024, p. 29 / 115 18 / 74 or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH—R9O R9O—fl7O^—R6' ' 'e, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts a, b, c, d, e, and m are integers where each is independently 0 or 1, b is 0 or 1, c is 2 or 3, each d is independently from 20 to 400, each e is independently from 0 to 100, and m is 0 or 1, with the condition that if R6 is a -C(=O)NH-R0-NHC(=O)- group, then A is -N(R4) and b is 0; (b) a UV light stabilizer package comprising: (i) at least one light stabilizer having formula (III): (III) in which R10 is hydrogen or chlorine; R11 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a group Petition 870240080757, dated 09 / 20 / 2024, p. 30 / 115 19 / 74 R14, where R14 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a -OR15 group, where R15 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R12 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, or an -OR16 group, where R16 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R13 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a -OR39 group, where R39 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a (CH2)fC(=O)O(CgH2gO)hR17, where R17 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms or a group of formula (IV): Petition 870240080757, dated 09 / 20 / 2024, p. 31 / 115 20 / 74 (CH2)fC(=O)- (IV) with the condition that when R17 is the formula group (IV), then h is 1 a 15; and the subscripts f, g, and h are integers where f is from 0 to 6, g is from 2 to 4, and h is from 0 to 15; or a light stabilizer having the formula (V): R22(V) where each R18, R19, R20, R21, R22 and R23 is independently hydrogen, a straight-chain alkyl group of 1 to 16 carbon atoms, a branched-chain alkyl group of 3 to 16 carbon atoms or a -OR24, where each R24 is independently a straight-chain alkyl group of 1 to 16 carbon atoms or a branched-chain alkyl group of 3 to 16 carbon atoms; (ii) at least one sterically hindered amine compound having formula (VI): R25 where each A1 is independently selected from the group consisting of groups Petition 870240080757, dated 09 / 20 / 2024, p. 32 / 115 21 / 74 straight-chain alkenylene with 1 to 10 carbon atoms, branched-chain alkylene groups with 3 to 10 carbon atoms, or a single chemical bond; Each R25 and R27 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a hydroxyl group, an amino group, -NR382, where R38 is independently hydrogen, a straight-chain alkyl group of 1 to 6 carbon atoms, or a branched-chain alkyl group of 3 to 6 carbon atoms; each R26 is independently a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkylene group of 3 to 10 carbon atoms, an arylene group of 6 to 10 carbon atoms, an aralkylene group of 7 to 10 carbon atoms, or a divalent organic group of 1 to 20 carbon atoms containing at least one divalent oxygen atom forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group, a secondary amide group, a primary amino group, a secondary amino group, or a tertiary amino group; and the subscript i is an integer from 1 to 100; or a sterically hindered amine compound having the formula (VII): R29 L JJ (VII) in which R28 is hydrogen, a monovalent or polyvalent hydrocarbon group containing from 1 to 16 carbon atoms, a monovalent or polyvalent organic group of 1 to 24 carbon atoms containing at least one triazinyl group, pyrimidinyl group, pyridinyl group, 2,4,6-trione-1,3,5-triazinyl group, atoms of Petition 870240080757, dated 09 / 20 / 2024, p. 33 / 115 22 / 74 divalent oxygen forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group or a secondary amide group, a primary amino group, a secondary amino group or a tertiary amino group; Each R29, R30, R32 and R33 is independently a straight-chain alkyl group of 1 to 6 carbon atoms or a branched-chain alkyl group of 3 to 6 carbon atoms; Each R31 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, or an aralkyl group of 7 to 10 carbon atoms; and the subscript j is an integer from 1 to 5. (iii) a silicon compound containing a conjugated C=C group having the general formula (VIII): A2Si(CH3)k(OR35)3-k (VIII) where A2 is CH2=C(CH3)C(=O)OCH2CH2CH2- or phenyl; R35 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 or 4 carbon atoms; ek is an integer 0 or 1; (c) an adhesion promoter containing an alkoxysyl group; and (d) a curing catalyst.

[039] The polymeric composition containing alkoxysilyl is clear, transparent, pale yellow in color and not yellowish.

[040] In one embodiment in this document, the alkoxysyl-containing polymers (a) employed in the present invention are known materials and, in general, can be obtained (i) by reacting an isocyanate-containing polyurethane (PUR) prepolymer with a suitable silane, which has alkoxysyl functionality and Petition 870240080757, dated 09 / 20 / 2024, page 34 / 115 23 / 74 a functionality containing active hydrogen, such as a primary amine or a secondary amine, preferably the latter, (ii) reacting a hydroxyl-containing polyurethane prepolymer with a suitable isocyanate-containing silane having two or three alkoxy groups, (iii) reacting a hydroxyl-containing poly(oxyalkylene) polymer with an isocyanate-containing silane having two or three alkoxy groups, or (iv) reacting an allyl-containing poly(oxyalkylene) polymer with a hydroalkoxysilane. The details of these reactions, and those for preparing the isocyanate-containing and hydroxyl-containing polyurethane prepolymers employed therein, are known to those skilled in the art.

[041] The number average molecular weight, weighted average molecular weight and polydispersity of polymers containing alkoxysyl (a) or polyols can be determined by ASTM D5296-11 Standard Test Method for Molecular Weight Averages and Molecular Weight Distribution of Polystyrene by High Performance Size Exclusion Chromatograph.

[042] Included among the polyols that can be used for the preparation of alkoxysilyl-containing polymers (a) are hydroxyl-containing poly(oxyalkylene) polymers, also referred to as polyether polyols. In one embodiment, suitable specific polyether polyols are diols including poly(oxyethylene) diols, poly(oxypropylene) diols and poly(oxyethylene-oxypropylene) diols and triols including poly(oxyethylene) triols, poly(oxypropylene) triols and poly(oxyethylene-oxypropylene) triols. In one embodiment of the present invention, the polyols used in the production of the alkoxysilyl-containing polymer (a) are poly(oxyalkene) diols with number-average molecular weights of 500 grams / mol and 25,000 grams / mol. In another embodiment, the polyols used in the production of the alkoxysilyl-containing polymer (a) are poly(oxypropylene) diols with number-average molecular weights of about 1,000 grams / mol to about 20,000 g / mol, more specifically 8.000 grams / mol to 11,000 grams / mol. Mixtures of polyols of various structures and weights. Petition 870240080757, dated 09 / 20 / 2024, page 35 / 115 24 / 74 molecular weights and / or functionalities can also be used. The number-average molecular weights of polyols can be determined from the hydroxyl number and functionality of the polyol. The hydroxyl number can be determined by ASTM D4274-05 Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Number of Polyols. The unsaturation of the polyol can be determined by ASTM D4671-16 Standard Test Methods for Polyurethane Raw Materials: Determination of Unsaturation of Polyols.

[043] In one embodiment, polyether polyols may have a hydroxyl functionality of up to about 3, in another embodiment, a hydroxyl functionality of about 1.8 to 3, and in yet another embodiment, a hydroxyl functionality of 1.95 to 2.0 (i.e., diols). Particularly suitable are polyether polyols prepared in the presence of double metal cyanide (DMC) catalysts, an alkali metal hydroxide catalyst, or an alkali metal alkoxide catalyst, such as those known to those skilled in the art. Polyether polyols produced in the presence of such catalysts tend to have high molecular weights and low levels of unsaturation, properties which, while not wishing to be limited by theory, are believed to be responsible for the better performance of the cured compositions. Polyether polyols preferably have a number average molecular weight of about 1,000 grams / mol to about 25.000 grams / mol, more preferably from about 2,000 grams / mol to about 20,000 grams / mol and even more preferably from about 4,000 grams / mol to about 18,000 grams / mol. Polyether polyols preferably have a terminal group unsaturation level not exceeding about 0.04 milliequivalents per gram of polyol. More preferably, the polyether polyol has a terminal group unsaturation not exceeding about 0.02 milliequivalents per gram of polyol. Examples of commercially available diols that are suitable for making the isocyanate-terminated prepolymer include ARCOL R-1819 (number average molecular weight of 8,000), EPetition 870240080757, 20 / 09 / 2024, p. 36 / 115. 25 / 74 2204 (number average molecular weight of 4,000) and ARCOL E-2211 (number average molecular weight of 11,000).

[044] In the preparation of the alkoxysyl-containing polymer (a) reacting (i), isocyanate-containing polyurethane prepolymers are obtained by reacting one or more polyols, advantageously diols, with one or more polyisocyanates, especially diisocyanates, in such proportions that the resulting prepolymers will be terminated with isocyanate groups. In the case of reacting a diol with a diisocyanate, a molar excess of diisocyanate will be used.

[045] In one embodiment, a diisocyanate is used after the reaction of the polyol with the polyisocyanate having the general formula (IX): R0(-N=C=O)2 (IX) wherein R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms or an aralkylene group of 7 to 16 carbon atoms.

[046] According to one embodiment of the invention, the isocyanate-containing prepolymer is prepared by reacting di-isocyanates with polyols in an NCO to OH molar ratio (NCO:OH) in a range of about 1.1:1 to about 2.0:1, more preferably from about 1.4:1 to about 1.9:1 and most preferably from about 1.5:1 to about 1.8:1.

[047] In the preparation of isocyanate-containing polyurethane, numerous diisocyanates and mixtures thereof can be used to provide isocyanate-containing polyurethane prepolymers. In one embodiment, the diisocyanate may be diphenylmethane diisocyanate (“MDI”), paraphenylene diisocyanate, naphthylene diisocyanate, carbodiimide-modified liquid MDI and its derivatives, isophorone diisocyanate, dicyclohexylmethane-4,4'-diisocyanate, toluene diisocyanate (“TDI”), Petition 870240080757, dated 09 / 20 / 2024, page 37 / 115 26 / 74 particularly the 2,6-TDI isomer, as well as several other aliphatic and aromatic polyisocyanates that are well established in the art and their combinations.

[048] A catalyst may be used in the preparation of the above-mentioned isocyanate-containing prepolymers. Suitable catalysts are metal salts or bases and include, but are not limited to, bismuth salts such as bismuth trisneodecanoate and other bismuth carboxylates; zirconium compounds or aluminum compounds such as zirconium chelates and aluminum chelates; dialkyltin dicarboxylates such as dibutyltin dilaurate and dibutyltin acetate, tertiary amines, stannous salts of carboxylic acids such as stannous octoate and stannous acetate and the like.

[049] Advantageously, condensation catalysts are employed since these will also catalyze the curing (hydrolysis followed by crosslinking) of the alkoxysilyl-containing polymer (a) component of the curable compositions of the invention. Suitable condensation catalysts include dialkyltin dicarboxylates, such as dibutyltin dilaurate and dibutyltin acetate, tertiary amines, stannous salts of carboxylic acids, such as stannous octoate and stannous acetate, and the like. In one embodiment of the present invention, the dibutyltin dilaurate catalyst is used in the production of the polyurethane prepolymer. Other useful catalysts include the zirconium complex KAT XC6212, K-KAT XC-A209 available from King Industries, Inc., TYZER® aluminum chelate types available from DuPont Company and KR types available from Kenrich Petrochemical, Inc., and other organic metals such as Zn, Co, Ni and Fe, and the like.

[050] In one embodiment, the amount of catalyst used in the preparation of the alkoxysyl-containing polymer (a) is 1 part per million (ppm) at about 1 percent by weight, based on the weight of the polyol used, more specifically 3 parts per million at 0.5 percent by weight, and even more specifically 15 parts per Petition 870240080757, dated 09 / 20 / 2024, page 38 / 115 27 / 74 million at 0.2 percent by weight.

[051] The reaction can be carried out at room temperature to about 120 °C and, more specifically, from 35 °C to about 80 °C and at pressures ranging from 100 Pa to 200,000 Pa, more specifically from 150 Pa to 120,000 Pa.

[052] The reaction of diisocyanate with polyol yields a hydroxyl-containing polymer having the general formula (X): OO o O=C=NR°-NHC(=O)O(R7O)d(R8O)c-2[CNHR°NHCo(R7O)d]mCNHR0-N=C=O (X) where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms, or an aralkylene group of 7 to 16 carbon atoms, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -ch_R9O O r9o-Í-r7o4-cnhr°-n=c=o ' 'e, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts c, d, e, and em are integers where c is 2 or 3, each d is independently from 20 to 400, each e is independently from 0 to 100, and em is 0 or 1.

[053] The silylation reagents for reaction with the isocyanate-containing polyurethane prepolymers (X) described above contain functionality that is reactive with isocyanate and at least one readily hydrolyzable alkoxysyl group, which after hydrolysis to form silanols, can subsequently condense to form a siloxane group. Particularly useful silylation reagents are the aminofunctional alkoxysilanes, especially those of general formula (XI): Petition 870240080757, dated 09 / 20 / 2024, p. 39 / 115 28 / 74 HN(R4)R3-Si(R2)a(OR1)3-a (IX) where each R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; Each R2 is independently methyl or phenyl: Each R3 is independently either a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; Each R4 is independently hydrogen or a straight-chain alkyl group of 1 to 6 carbon atoms, a branched-chain alkyl group of 3 to 6 carbon atoms, a cycloalkyl group of 5 to 8 carbon atoms, a phenyl group, or a -R3-Si(R2)a(OR1)3-a group; and the subscript a is an integer, where a is 0 or 1.

[054] The amount of amino-functional alkoxysilane used in the silylation of the isocyanate-containing polyurethane prepolymer may be less than stoichiometric amounts, stoichiometric amounts, or greater than stoichiometric amounts. The molar ratio of NH to NCO (NH:NCO) is from about 0.05:1 to about 2.0:1, preferably from about 0.9:1 to about 1.1:1, and even more preferably from about 0.95:1 to about 1.05:1.

[055] In one embodiment, R1 is methyl, R2 is methyl, R3 is -CH2CH2CH2-, CH2C(CH3)2CH2CH2- or -CH2CH(CH3)CH2-, R4 is hydrogen, methyl, ethyl or phenyl and a is 0.

[056] Representative and non-limiting examples of aminofunctional alkoxysilanes include 3-aminopropyltrimethoxysilane, 1-aminomethyltrimethoxysilane, 3-aminopropylmethyldimethoxysilane, aminomethylmethyldimethoxysilane, 3-aminopropyltriethoxysilane, N-methyl-3-aminopropyltrimethoxysilane, N-methyl-3 Petition 870240080757, dated 09 / 20 / 2024, page 40 / 115 29 / 74 aminopropyltriethoxysilane, N-methyl-3-aminobutyltriethoxysilane, N-ethyl-3aminopropylmethyldimethoxysilane, N-phenyl-3-aminopropyltrimethoxy silane, N-butyl-3aminopropyltrimethoxysilane, N-cyclohexyl-3-aminopropyltrimethoxysilane, N-methyl-3-amino-2-methylpropyltrimethoxysilane, N-ethyl-3-amino-2-methylpropyltrimethoxysilane, Nethyl-3-amino-2-methylpropyldiethoxysilane, N-ethyl-3-amino-2-methylpropyltriethoxysilane, Nethyl-3-amino-2-methylpropylmethyldimethoxysilane, N-butyl-3-amino-2methylpropyltrimethoxysilane, N-ethyl-4-amino-3,3-dimethylbutyldimethoxymethylsilane and N-ethyl4-amino-3,3-dimethylbutyltrimethoxysilane.

[057] The reaction product of reaction (i) has the general formula (I) where A is independently -N(R4); each R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; each R2 is independently methyl or phenyl; each R3 is independently a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; each R4 is independently hydrogen or a straight-chain alkyl group of 1 to 6 carbon atoms, a branched-chain alkyl group of 3 to 6 carbon atoms, a cycloalkyl group of 5 to 8 carbon atoms, a phenyl group or a -R3Si(R2)a(OR1)3-a group; R5 is a divalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is a -C(=O)NH-R0-NHC(=O)- group, where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms, or an aralkylene group of 7 to 16 carbon atoms, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is Petition 870240080757, dated 09 / 20 / 2024, p. 41 / 115 30 / 74 -CH—R9O R9O—^Roj—R6, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts a, b, c, d, and e are integers where each is independently 0 or 1, b is 0, c is 2 or 3, each d is independently 20 to 400, each e is independently 0 to 100, and e is 0 or 1.

[058] In one embodiment in this document, the alkoxysilyl-containing polymer (a) can be prepared by the reaction (ii) of a hydroxyl-containing polyurethane prepolymer with an isocyanate-containing silane. The hydroxyl-containing polyurethane prepolymer can be obtained substantially in the same way by employing substantially the same materials, i.e., polyols, diisocyanates and optional catalysts (preferably condensation catalysts), described above for the preparation of isocyanate-containing prepolymers, the main difference being that the proportions of polyol and diisocyanate are such that they result in a prepolymer with hydroxyl groups.

[059] According to one embodiment of the invention, a hydroxyl-containing polyurethane prepolymer is prepared by reacting diisocyanates with polyols where the molar ratio of NCO to OH (NCO:OH) is in the range specifically from about 0.10:1 to about 0.99:1, more specifically from about 0.30:1 to about 0.95:1 and more specifically from about 0.50:1 to about 0.9:1.

[060] The reaction can be carried out at room temperature to about 120 °C and, more specifically, from 35 °C to about 80 °C and at pressures ranging from 100 Pa to 200,000 Pa, more specifically from 150 Pa to 120,000 Pa.

[061] The reaction of diisocyanate with polyol gives a hydroxyl-containing polyurethane polymer having the general formula (XII): HO(R7O)d(R8O)c-2[C(=O)NHR0NHC(=O)O(R7O)d]mH (XII) Petition 870240080757, dated 09 / 20 / 2024, p. 42 / 115 31 / 74 where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms, or an aralkylene group of 7 to 16 carbon atoms, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH—R9O r9o—Ar7o-Vh ' 'e, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts c, d, eem are integers where c is 2 or 3, each d is independently from 20 to 400, each e is independently from 0 to 100 and em is 0 or 1.

[062] Useful silylation reagents for hydroxyl-containing polyurethane polymers are those containing an isocyanate termination and readily hydrolyzable functionality. Suitable silylation reagents are isocyanatosilanes of general formula (XIII): O=C=N-R3-Si(R2)a(OR1)3-a (XIII) where each R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; Each R2 is independently methyl or phenyl: Each R3 is independently a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; and the subscript a is an integer, where a is 0 or 1. Petition 870240080757, dated 09 / 20 / 2024, p. 43 / 115 32 / 74

[063] Specific isocyanatosilanes that can be used in this document to react with the previous hydroxyl-containing polyurethane prepolymers to provide alkoxysilyl-containing polymers (a) include isocyanatopropyltrimethoxysilane, isocyanatoisopropyltrimethoxysilane, isocyanato-n-butyltrimethoxysilane, isocyanato-t-butyltrimethoxysilane, isocyanatopropyltriethoxysilane, isocyanatoisopropyltriethoxysilane, isocyanato-n-butyltriethoxysilane, isocyanato-t-butyltriethoxysilane and the like.

[064] The reaction product of reaction (ii) has the general formula (I) where A is O-, each R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; each R2 is independently methyl or phenyl; each R3 is independently a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; each R4 is independently hydrogen; R5 is a divalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is independently a straight-chain alkylene group of 2 to 6 carbon atoms, a branched-chain alkylene group of 3 to 6 carbon atoms, or a group, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH—R9O r9o—(r7o^—R6· ' 'e, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts a, b, c, d, and e are integers where each is independently 0 or 1, b is 1, c is 2 or 3, each d is independently from 20 to 400, each e is independently from 0 to 100, and e is 0 or 1.

[065] In yet another embodiment, polymers containing alkoxysyl (a) Petition 870240080757, dated 09 / 20 / 2024, p. 44 / 115 33 / 74 can be obtained by reaction (iii), which is the reaction of an isocyanatosilane with a polyol, which can be a single polyol or a mixture of two or more polyols and, advantageously, diols.

[066] The reaction product of reaction (iii) has the general formula (I) where A is O-, each R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; each R2 is independently methyl or phenyl; each R3 is independently a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; each R4 is independently hydrogen; R5 is a divalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is independently a straight-chain alkylene group of 2 to 6 carbon atoms, a branched-chain alkylene group of 3 to 6 carbon atoms, or a group, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH—R9O R9O ^R7O^—R6- ' 'e, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts a, b, c, d, and e are integers where each is independently 0 or 1, b is 1, c is 2 or 3, each d is independently 20 to 400, each e is independently 0 to 100, and e is 0.

[067] The synthesis according to reactions (i), (ii) or (iii) can be monitored using a standard titration technique for isocyanate content in the reaction mixture, according to ASTM D2572-19 Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers, or infrared analysis. The silylation of urethane prepolymers is considered complete when no residual -NCO can be detected. Petition 870240080757, dated 09 / 20 / 2024, p. 45 / 115 34 / 74 cannot be detected by any technique.

[068] In yet another embodiment, the alkoxysilyl-containing polymer (a) can be obtained by reaction (iv), whereby an allyl-containing poly(oxyalkylene) polymer is reacted with a hydroalkoxysilane.

[069] The aforementioned hydroxyl functional polyols are converted into ethylenically unsaturated prepolymers in a manner known to be by reaction with ethylenically unsaturated halo compounds. These prepolymers are prepared by reacting equivalent amounts of ethylenically unsaturated halo compounds with a polyol or a combination of polyols, usually in the presence of a strong base, such as an alkaline alkoxide, which deprotonates the hydroxyl group in the polyol.

[070] Suitable polyether diols useful in preparation have been discussed above.

[071] In one embodiment of the present invention, the polyols used in the production of the alkoxysilyl-containing polymer (a) are poly(oxypropylene) diols with number-average molecular weights of about 1,000 grams / mol to about 20,000 grams / mol, more specifically about 2,000 grams / mol to about 18,000 grams / mol and even more specifically about 8,000 grams / mol to about 12,000 grams / mol. Mixtures of polyols of various structures, molecular weights and / or functionalities may also be used. The number-average molecular weights of the polyol are determined from the hydroxyl number and functionality of the polyol. The hydroxyl number can be determined by ASTM D4274-05 Standard Test Methods for Testing Polyurethane Raw Materials: Determination of Hydroxyl Number of Polyols. Polyol unsaturation can be determined by ASTM D4671-16 Standard Test Methods for Polyurethane Raw Materials: Determination of Unsaturation of Polyols.

[072] In one embodiment, the polyether polyols may have a functionality of up to about 3, in another embodiment, a functionality of about 1.8 to about 3 and, in yet another embodiment, a functionality of Petition 870240080757, dated 09 / 20 / 2024, p. 46 / 115 35 / 74 about 1.95 to about 2.05 (i.e., diols). Especially suitable are polyether polyols prepared in the presence of double metal cyanide (DMC) catalysts, an alkali metal hydroxide catalyst, or an alkali metal alkoxide catalyst, such as those known to those skilled in the art. Polyether polyols produced in the presence of such catalysts tend to have high molecular weights and low levels of unsaturation, properties which are believed to account for the better performance of inventive retroreflective articles. Polyether polyols preferably have a number average molecular weight of about 1,000 to about 25,000, more preferably about 2,000 to about 20,000, and even more preferably about 4,000 to about 18,000. Polyether polyols preferably have a terminal group unsaturation level not exceeding about 0.04 milliequivalents per gram of polyol.More preferably, the polyether polyol has a terminal group unsaturation not exceeding about 0.02 milliequivalents per gram of polyol. Examples of commercially available diols that are suitable for making isocyanate-terminated PUR prepolymer include ARCOL R-1819 (number average molecular weight of 8,000), E-2204 (number average molecular weight of 4,000) and ARCOL E-2211 (number average molecular weight of 11,000).

[073] The ethylenically unsaturated polymers useful in the preparation of the alkoxysyl-containing polymer (a) are given by the general formula (XIV): CH2=CRCH2-O(R7O)d(R8O)c-2-CH2CR=CH2 (XIV) wherein each R is independently hydrogen or methyl, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH-R9O| R9O(R7O)eCH2CR=CH2 Petition 870240080757, dated 09 / 20 / 2024, page 47 / 115 36 / 74 wherein each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts c, d and e are integers where c is 2 or 3, each d is independently from 20 to 400, and each e is independently from 0 to 100.

[074] The reaction conditions for the preparation of ethylenically unsaturated polymers are well known in the art, as, for example, described in U.S. Patents 3,951,888 and 3,971,751, the entire contents of which are incorporated herein by reference. The reaction to form these ethylenically unsaturated polymers involves the deprotonation of the hydroxyl groups using alkaline hydroxides or alkoxides, followed by reaction with an ethylenically unsaturated halogen compound.

[075] Representative non-limiting examples of ethylenically unsaturated halogen compounds include allyl chloride, metalyl chloride, allyl bromide or allyl iodide.

[076] The ethylenically unsaturated prepolymer is hydrolyzed with hydrolyzable hydridossilane having the formula (XV): H-Si(R2)a(OR1)3-a (XV) wherein R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; R2 is methyl or phenyl, and a is an integer, where a is 0 or 1.

[077] The conditions for hydrosylation of intermediates containing carbon-carbon double bonds are well known in the art, as described in “Comprehensive Handbook of Hydrosilylation,” B. Marciniec (ed.), Pergamon Press, New York (1992), which is included in its entirety in this document by reference.

[078] Useful hydrolyzable hydridosilanes include, but are not limited to, HSi(OCH3)3, H-Si(OCH2CH3)3, H-SiCH3(OCH3)2, H-SiCH3(OCH2CH3)2 and the like. Petition 870240080757, dated 09 / 20 / 2024, p. 48 / 115 37 / 74

[079] The reaction product of reaction (iv) has the general formula (I) where A is O- each R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; each R2 is independently methyl or phenyl; each R3 is independently a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; each R4 is independently hydrogen; R5 is a divalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is independently a straight-chain alkylene group of 2 to 6 carbon atoms, a branched-chain alkylene group of 3 to 6 carbon atoms, or a group, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH—R9O R9O--^R7O^—R6- ' 'e, where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts a, b, c, d, and e are integers where each is independently 0 or 1, b is 0, c is 2 or 3, each d is independently 20 to 400, each e is independently 0 to 100, and e is 0.

[080] In one embodiment, the terms and subscripts of the moisture-curable silylated polymer of formula (I) may be A is -O-, R1 is methyl, R2 is methyl, R3 is CH2CH2CH2-, R4 is hydrogen, R5 is -R6O(R7O)d[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6-, wherein each R6 and R7 is an alkylene group of 2 to 6 carbon atoms, including H3C - CH2---^CH CH(CH3)CH2- and / or -CH2CH(CH3)-, R0 is hexylene or H3C CH3, where it is 0 Petition 870240080757, dated 09 / 20 / 2024, p. 49 / 115 38 / 74 or 1, a is 0 or 1, more specifically 0, b is 1, c is 2 and d is 100 to 350.

[081] In another embodiment, the terms and subscripts of the moisture-curable silylated polymer of formula (I) may be A is -NR4-, where R4 is hydrogen, a straight-chain alkylene of 1 to 3 carbon atoms, R1 is methyl, R2 is methyl, R3 is CH2CH2CH2-, -CH2CH(CH3)CH2- or -CH2C(CH3)2CH2CH2-, R5 is R6O(R7O)d[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6-, where each R6 is -C(=O)NH-R0H3C - CH2--^CH NHC(=O)-, where R0 is hexylene or H3C CH3, R7 is an alkylene group of 6 carbon atoms, including -CH(CH3)CH2- and / or -CH2CH(CH3)-, in is 0 or 1, a is 0 or 1, more specifically 0, b is 0, c is 2 and ed is 100 to 350.

[082] The amount of alkoxysyl-containing polymer (a) in the moisture-curable silylated polymer composition is adjusted to 100 parts by weight.

[083] The UV light stabilizer package comprises (i) at least one light stabilizer of formula (III) or formula (V); (ii) at least one sterically hindered amine compound of formula (VI) or formula (VII); and (iii) at least one silicon compound containing a conjugated C=C group and having the structure of formula (VIII).

[084] The light stabilizer (b)(i) of formula (III) may be a benzotriazole or a benzotriazole derivative, preferably a 2-(2'-hydroxyphenyl)benzotriazole derivative.

[085] Representative and non-limiting examples of light stabilizers (b)(i) of formula (III) include poly(oxy-1,2-ethanedi-yl), α-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl)-ω-hydroxy; poly(oxy-1,2-ethanedi-yl), α-(3-(3(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl-ω-(3-(3-(2H Petition 870240080757, dated 09 / 20 / 2024, page 50 / 115 39 / 74 benzotriazol-2-yl-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropoxy); α-3-(3-(2Hbenzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-hydroxypoly(oxyethylene); α-3-(3(2H-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-3-(3-(2H-benzotriazol-2-yl)5-tert-butyl-4-hydroxyphenyl)propionyloxypoly(oxyethylene); 2-(2'-hydroxy-5'-methylphenyl)benzotriazole; 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)benzotriazole; 2-(5'-tert-butyl-2'hydroxyphenyl)benzotriazole; 2-(2'-hydroxy-5'-(1,1,3,3-tetramethylbutyl)-phenyl)-benzotriazole; 2(3',5'-di-tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'methylphenyl)-5-chlorobenzotriazole; 2-(3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl)-benzotriazole; 2-(2'-hydroxy-4'-octyloxyphenyl)-benzotriazole; 2-(3',5'-di-tert-amyl-2'-hydroxyphenyl)benzotriazole; 2-(3',5'-bis(a,a-dimethylbenzyl)-2'-hydroxyphenyl)-benzotriazole; 2-(3'-tert-butyl2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)-5-chlorobenzotriazole;2-(3'-tert-butyl-5'-[2-(2-ethylhexyloxy)carbonylethyl]-2'-hydroxyphenyl)-5-chlorobenzotriazole; 2-(3'-tert-butyl-2'-hydroxy5'-(2-methoxycarbonylethyl)phenyl)-5-chlorobenzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)benzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)benzotriazole; 2-(3'-tert-butyl-5'-[2-(2-ethylhexyloxy)carbonylethyl]2'-hydroxyphenylbenzotriazole; 2-(3'-dodecyl-2'-hydroxy-5'-methylphenyl)-benzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'-(2-iso-octyloxycarbonylethyl)-phenylbenzotriazole; 2,2'-methylenebis[4(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-yl]; e suas combinações.;

[086] Representative and non-limiting examples of light stabilizer (b)(i) mixtures include poly(oxy-1,2-ethanedi-yl), α-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl)-ω-hydroxy and poly(oxy-1,2-ethanedi-yl), α-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl-ω-(3-(3-(2H-benzotriazol-2-yl-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropoxy); and a-3-(3-(2Hbenzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-hydroxypoly(oxyethylene); α-3-(3(2H-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-3-(3-(2H-benzotriazol-2-yl)5-tert-butyl-4-hydroxyphenyl)propionyloxypoly(oxyethylene) and poly(oxy-1,2-ethanedi-yl), α-hydroω-hydroxy-ethane-1,2-diol, ethoxylated. Petition 870240080757, dated 09 / 20 / 2024, page 51 / 115 40 / 74

[087] The light stabilizer (b)(i) of formula (III) is commercially available and can be obtained from companies such as Everlight Chemical and BASF and include under the trade names Tinuvin® 213, a mixture of poly(oxy-1,2-ethanediyl), α-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl)-ωhydroxy (CAS # 104810-48-2) and poly(oxy-1,2-ethanedi-yl), a-(3-(3-(2H-benzotriazol-2-yl)-5(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl-ω-(3-(3-(2H-benzotriazol-2-yl-5-(1,1dimethylethyl)-4-hydroxyphenyl)-1-oxopropoxy) (CAS # 104810-48-1), available from BASF; Tinuvin® 384-1, a mixture of 95% benzenepropanoic acid, 3-(2Hbenzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-C7-9-branched and straight-chain alkyl esters (CAS # 127519-17-9); 1-methoxy-2-propyl (CAS # 10865-6), available from BASF;and Eversorb® 80, a mixture of α-[3-[3-(2H-benzotriazol2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropyl]-w-hydroxypoly(oxo-1,2-ethanedi-yl) (CAS # 104810-48-2); a-[3-[3-(2H-benzotriazol-2-yl)-5-(1,dimethylethyl)-4-hydroxyphenyl]-1oxopropyl]-w-[3-[3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl]-1oxopropoxy]poly(oxy-1,2-ethanedi-yl) (CAS # 104810-48-2) and PEG300, (CAS # 25322-683, available from Everlight Chemical.;

[088] The light stabilizer (b)(i) may be oxaldianylidines of general formula (IV). These compounds are commercially available.

[089] Representative and non-limiting examples include N-(2-ethoxyphenyl)N'-(2-ethylphenyl)ethylenediamide (CAS: 23949-66-8), N,N'-diphenylethylenediamide (CAS: 620-81-5), N-(5-(1,1-dimethylethyl)-2-ethoxyphenyl)-N'-(2-ethylphenyl)ethylenediamide (CAS: 35001-52-6) and N-(2-ethoxyphenyl)-N'-(4-isododecylphenyl)ethylenediamide (CAS: 82493-14-9), more particularly N-(2-ethoxyphenyl)-N'-(2-ethylphenyl)ethylenediamide (CAS: 23949-66-8) and N-(2-ethoxyphenyl)-N'-(4-isododecylphenyl)ethylenediamide (CAS: 82493-14-9).

[090] General formula (IV) oxadianylidine can be solid, which makes it more difficult to incorporate into moisture-curable silylated polymer compositions.

[091] The 2-(2'-hydroxyphenyl)benzotriazole derivatives, which are liquids, are Petition 870240080757, dated 09 / 20 / 2024, p. 52 / 115 41 / 74 particularly useful in the invention.

[092] The amount of light stabilizer (b)(i) may be included from about 0.5 to about 3 parts by weight per 100 parts by weight of alkoxysilyl-containing polymer (a) and more preferably from about 0.8 to about 2 parts by weight per 100 parts by weight of alkoxysilyl-containing polymer (a).

[093] A sterically hindered amine compound (b)(ii) having formula (VI) or formula (VII) may be used in the moisture-curable silylated polymer composition as part of the stabilizer package.

[094] Representative and non-limiting examples of sterically hindered amine compounds (b)(ii) include 3-(2,2,6,6-tetramethyl-piperidin-4-yloxy)propionic acid, 4-(2,2,6,6-tetramethyl-piperidin-4-yl)butyric acid, poly-[4-(2,2,6,6-tetramethyl-piperidin-4-yl)butyric acid] ester, poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-di-yl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanedi-yl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]], bis(2,2,6,6-tetramethyl-4-piperidyl)maleate, bis(2,2,6,6-tetraethyl-4-piperidyl)maleate, bis(2,2,6,6-tetramethyl-4-piperidyl)maleate, bis(2,2,6,6-tetrahexyl-4-piperidyl)sebaceate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)propanedioate, poly-[7-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-4-oxo-heptanoic acid] ester, poly-[6-(4-hydroxy-2,2,6,6-tetraethyl-piperidin-1-yl)hexanoic acid] ester poly-[7-(4-hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)-4-oxoheptanoic acid] ester,1-tert-butyl-2,2,6,6-tetramethyl-piperidin-4-yl ester of 7-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-4-oxo-heptanoic acid, 7-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-4-oxo-heptanoic acid, 8-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-5-oxo-octanoic acid, 6-(4-hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)-hexanoic acid, 4-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-benzoic acid, polymer resulting from the reaction of dimethylbutanedioate with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol and mixtures thereof.

[095] These sterically hindered amine compounds (b)(ii) are Petition 870240080757, dated 09 / 20 / 2024, page 53 / 115 42 / 74 commercially available and include, as non-limiting examples, Tinuvin® 292, a mixture of bis-(N-methyl,2,2,6,6-tetramethyl-4-piperidinyl)sebacate (CAS # 4155626-7) and methyl-(N-methyl,2,2,6,6-tetramethyl-4-piperidinyl)sebacate (CAS # 82919-37-7) available from BASF; Tinuvin® 770, bis(2,2,6,6-tetramethyl-4-piperidyl)sebaceate, available from BASF; Eversorb 93, a mixture of bis-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl) sebacate (CAS # 41556-26-7) and methyl-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl) sebacate (CAS # 82919-37-7) available from Everlight Chemical; and Tinuvin®765, a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidyl)sebacate and methyl 1,2,2,6,6-pentamethyl-4-piperidyl sebacate, available from Ciba-Geigy.

[096] The amount of sterically hindered amine compounds (b)(ii) may be included from about 0.2 to about 1.5 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a), and more preferably from about 0.4 to about 0.8 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a).

[097] The silicon compound containing a conjugated C=C group (b)(iii) has the general formula (VIII). These silicon compounds containing a conjugated C=C group (b)(iii) provide a reduction in yellowing when exposed to ultraviolet light and air.

[098] Representative and non-limiting examples of these compounds include phenyltrimethoxysilane, phenylmethyldimethoxysilane, phenyltriethoxysilane, phenylmethyldiethoxysilane, diphenylmethylmethoxysilane, diphenylmethylethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane or 3-methacryloxypropylmethyldimethoxysilane.

[099] Silicon compounds containing a conjugated C=C group (b)(iii) are commercially available, such as phenyltrimethoxysilane, available from Gelest, Inc. under the trade name SIP6822.0 and 3-methacryloxypropyltrimethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest® A-174 silane. Petition 870240080757, dated 09 / 20 / 2024, page 54 / 115 43 / 74

[0100] The amount of silicon compound containing a conjugated C=C group (b)(iii) useful in the present invention ranges from about 0.5 to about 5.0 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) and more particularly from about 1.0 to about 2.5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a).

[0101] The adhesion promoter containing an alkoxysilyl group (c) is added to the moisture-curable silylated polymer composition to improve adhesion to various substrates, especially metals, glass, ceramics and stone.

[0102] In one embodiment, the adhesion promoter containing an alkoxysyl group (c) has the general formula (XVI): A3[R36-Si(CH3)n(OR37)3-n]o (XVI) where A3 is a monovalent functional group selected from H2N-, H2NCH2CH2NH-, CH3NH-, CH3CH2NH-, CH3(CH2)2NH-, CH3(CH2)3NH- and glycidoxy-, a divalent functional group -NH-, or a trivalent functional group, isocyanurate-; Each R36 is independently either a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; Each R37 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; and the subscripts neo are integers where n is 0 or 1 and o is 1, 2 or 3, with the condition that when monovalent, o is 1, when A3 is divalent, o is 2 and when A3 is trivalent, o is 3.

[0103] Representative and non-limiting examples of adhesion promoters (c) include 3-aminopropyltrimethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest* A-1110 silane, 3 Petition 870240080757, dated 09 / 20 / 2024, p. 55 / 115 44 / 74 aminopropyltriethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest* A-1100 silane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest* A-1120 silane, N-ethyl 3-amino-2-methylpropyltrimethoxysilane, available from Momentive Performance Materials, Inc. under the trade name A-Link* A15 silane, bis-(trimethoxysilylpropyl)amine, from Momentive Performance Materials, Inc. under the trade name Silquest* A-1170 silane, N,N',N"-tris-(3-trimethoxysilylpropyl)isocyanurate, available from Momentive Performance Materials, Inc. under the trade name A-Link* 597 silane, N-(2-ethyl)3-aminopropylmethyldimethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest* A-2120 silane, 3-glycidoxypropyltrimethoxysilane, available from Momentive Performance Materials, Inc.under the trade name Silquest* A-187 silane, 3-glycidoxypropyltriethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest* A-1871 silane and 3-glycidoxypropylmethyldiethoxysilane, available from Momentive Performance Materials, Inc. under the trade name CoatOSil* 2287 silane.

[0104] The amount of adhesion promoter containing an alkoxysilyl group (c) may be included from about 0.5 to about 5 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a), and more preferably from about 1.5 to about 3 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a).

[0105] A curing catalyst (d) is used to promote the curing of the moisture-curable silylated polymer composition.

[0106] The curing catalyst (d) of the moisture-curable silylated polymer composition may be any catalyst that is effective in promoting the reaction between alkoxysyl-containing polymer (a) when exposed to moisture. Suitable curing catalysts include, but are not limited to, organometallic catalysts, Petition 870240080757, dated 09 / 20 / 2024, page 56 / 115 45 / 74 Amine catalysts and the like. Preferably, the catalyst is selected from the group consisting of organic dibutyltin, zirconium complex, aluminum chelate, titanium chelate, organic zinc, organic cobalt, organic iron, organic nickel, and organobismuth and mixtures thereof. Amine catalysts are selected from the group consisting of primary amine, secondary amine, tertiary amine, and aminosilane and mixtures thereof. The catalyst may be a mixture of organometallic catalyst and amine catalyst.

[0107] Representative and non-limiting examples of catalysts include, but are not limited to, dibutyltin oxide, dibutyltin dilaurate, dioctyltin dilaurate, dibutyltin diacetate, stannous octoate, stannous acetate, stannous oxide, morpholine, 3-aminopropyltrimethoxysilane, 2-(aminoethyl)-3-aminopropyltrimethoxysilane, tri-isopropylamine, bis-(2-dimethylaminoethyl) ether, 1,8diazabicyclo[5,4,0]undec-7-ene and piperazine.

[0108] Particularly useful catalysts include titanium compounds, such as tetra-tert-butyl orthotitanate, bis(ethylacetoacetate)diisobutoxide titanium(IV), bis(ethylacetoacetate)dimethoxide titanium(IV), bis(ethylacetoacetate)diethoxide titanium(IV), bis(ethylacetoacetate)monoethoxide titanium(IV) or bis(ethylacetoacetate)diisopropoxide titanium(IV);Organic tin compounds, such as di-n-butyltin dilaurate, di-n-butyltin diacetate, di-n-butyltin oxide, di-n-butyltin dineodecanoate, di-n-butyltin diacetylacetonate, di-n-butyltin maleate, di-n-octyltin diacetate, di-n-octyltin dilaurate, di-n-octyltin oxide, di-n-octyltin maleate, di-n-octyltin di(2-ethyl)hexanoate, di-n-octyltin neodecanoate, di-n-octyltin isodecanoate, or their partial hydrolysis products of organic tin compounds or titanium compounds, or the reaction products of these organic tin compounds or titanium compounds or partial hydrolysis products of organic tin compounds or titanium compounds with alkoxysilanes, such as; Petition 870240080757, dated 09 / 20 / 2024, page 57 / 115 46 / 74 tetraethoxysilane, methyltriethoxysilane, methyltrimethoxysilane, propyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 2-aminoethyl-3-aminopropyltrimethoxysilane, 2-aminoethyl-3-aminopropyltrimethoxysilane; or mixtures or reaction products of titanium or organotin compounds with phosphonic acids, phosphinic acids, phosphonic acid monoesters or phosphoric acid mono- or diesters.

[0109] Other useful catalysts include zirconium-containing, aluminum-containing and bismuth-containing complexes, such as KAT XC6212, K-KAT 5218 and K-KAT 348, supplied by King Industries, Inc., titanium chelates, such as the TYZOR® types, available from DuPont, the KR types, available from Kenrich Petrochemical, Inc., amines, such as NIAX A-501 amine, available from Momentive Performance Materials, Inc., and the like.

[0110] The amount of catalyst (d) used in the moisture-curable silylated polymer composition may be in the range of about 0.1 to about 3 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) and, more particularly, from about 0.3 to about 1 part by weight per 100 parts by weight of the alkoxysyl-containing polymer (a). Other components

[0111] The moisture-curable composition may also comprise other components including antioxidant stabilizing additives, plasticizers, solvents, rheology modifiers and the like.

[0112] Antioxidants can be used to stabilize the alkoxysilyl-containing polymer (a). A variety of phenol and piperidinyloxy free radicals are suitable for stabilizing the alkoxysilyl-containing polymer (a).

[0113] Representative non-limiting examples of phenols suitable for stabilizing the composition include tetracis[methylene(3,5-di-tert-butyl-4-hydroxyhydrocinnamate)]methane; octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate; Petition 870240080757, dated 09 / 20 / 2024, p. 58 / 115 47 / 74 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid, C7-9 branched alkyl esters; 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene; 2,6-di-tert-butyl-4(N,N'-dimethylaminomethyl)phenol; and 2,6-di-tert-butyl-4-methylphenol.

[0114] Representative non-limiting examples of piperidinyloxy free radicals include 2,2,6,6-tetramethyl-1-piperidinyloxy free radical; and 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxy (4-hydroxy TEMPO) free radical. Vitamin E can also be used as an antioxidant for stabilizing the alkoxysilyl-containing polymer (a).

[0115] Phenolic antioxidant additives can be used alone or in combination. These phenolic additives can be used at a level of about 0.01 to 0.2 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a). Piperidinyloxy free radicals can be used at a level of about 0.0001 to 0.02 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a), and more specifically about 0.001 to 0.002 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a).

[0116] Plasticizers can be used in compositions to decrease the viscosity of uncured moisture-curable compositions and to adjust the cured properties of these compositions, such as modulus. Examples of plasticizers are high-boiling-point hydrocarbons, for example, liquid paraffins, dialkylbenzenes, dialkylnaphthalenes or mineral oils consisting of naphthenic and paraffinic units, polyglycols, in particular polyoxypropylene glycols, which may optionally be substituted, high-boiling-point esters, such as phthalates, acid esters or diesters of dicarboxylic acids, liquid polyesters, polyacrylates or polymethacrylates and alkanesulfonic acid esters.

[0117] If the moisture-curable compositions contain plasticizers, the amounts are preferably from about 1 to about 100 parts by weight, more preferably from about 10 to about 85 parts by weight, and in particular, of Petition 870240080757, dated 09 / 20 / 2024, p. 59 / 115 48 / 74 about 20 to about 75 parts by weight, based on 100 parts by weight of the alkoxysilyl-containing polymer (a). The compositions preferably contain plasticizers.

[0118] The moisture-curable composition may optionally comprise rheology-modifying additives. These rheology-modifying additives modify the rheology of the composition. Representative and non-limiting examples of rheology modifiers useful in the present invention include, for example, surface-treated fumed silica having an average particle size of less than 12 nanometers and preferably less than 7 nanometers, as measured in accordance with ASTM 958-92 (2014) Standard Test Methods for Particle Size Distribution of Alumina and Quartz by X-ray Monitoring of Gravity Sedimentation. Surface-treated fumed silica may be obtained from Evonik under the trade names Aerosil® R 974, R 9200, R 8200, R 805, R 104, R812 and 812S, and R-106 or from Cabot under the trade name CABO-SIL® ULTRABOND.

[0119] Rheology-modifying additives may be included in the range of about 1 to about 40 parts by weight and more preferably from about 4 to about 15 parts by weight based on 100 parts by weight of the alkoxysyl-containing polymer (a).

[0120] All conventional organic solvents may optionally be used as organic solvents. Suitable organic solvents for use have a water content of less than about 5 percent by weight, in particular less than about 1 percent by weight, and more particularly less than about 0.00001 percent by weight, based on the weight of the organic solvent. Non-limiting and representative examples include, for example, alcohols such as methanol, ethanol, isopropanol or 1,2-propanediol; ketones such as acetone or cyclohexanone; methyl ethyl ketoxime; esters such as butyl acetate, ethyl oleate, ethyl butoxyethoxyacetate; diethyl adipate, propylene carbonate, glyceryl triacetate or phthalate. Petition 870240080757, dated 09 / 20 / 2024, pp. 60 / 115 49 / 74 dimethyl; ethers, such as dipropylene glycol monomethyl ether, tetrahydrofuran or butoxyethoxyethanol; amides, such as N,N-dimethylacetamide or N,N-dimethylformamide; pyrrolidones, such as N-methyl-2-pyrrolidone or N-octyl-2-pyrrolidone; hydrocarbons, such as hexane, cyclohexane, octane, dodecane or mineral spirits; halogenated hydrocarbons, such as trichloroethane or difluorotetrachloroethane; and aromatics, such as alkylnaphthenes or alkylbenzenes.

[0121] If the compositions contain organic solvents, the amounts are from about 0.1 to about 70 parts by weight, preferably from about 0.2 to about 10 parts by weight, and more preferably from about 0.5 to about 2 parts by weight, based in each case on 100 parts by weight of the alkoxysilyl-containing polymer (a).

[0122] The moisture-curable silylated polymer composition is non-yellowing, characterized by a percent change in the b* value, measured by a colorimeter, of -30% to about 5%, preferably from about -20% to about 0%, and most preferably from about -15% to about 0% after a UV exposure period under ISO 4892-2:2013 Annex B, Method B, cycle B7 of 7 days, wherein the percent change in the b* value is determined by measuring the b* value using a colorimeter of the composition after curing and after UV light exposure, denoted b*(UV), and measuring the b* value after curing of the composition and before UV light exposure, denoted b*(initial), and then using the equation: Percentage value of non-yellowing = 100% X [(b*(UV)-b*(initial)) / b*(initial)].

[0123] In one embodiment, a silylated polymeric composition is provided comprising: (a) 100 parts by weight of an alkoxysilyl-containing polymer having the general formula (I): Petition 870240080757, dated 09 / 20 / 2024, page 61 / 115 50 / 74 R5 --A--CN R3—Si(OR1)3-a R2ac(I) where each A is independently -O- or -N(R4) or more specifically -O-; each R1 is methyl or ethyl or more specifically methyl; each R2 is methyl; Each R3 is methylene, propylene, 2-methylpropylene, 2,2-dimethylbutylene, or more specifically propylene; Each R4 is methyl, ethyl, phenyl, or hydrogen, or more specifically methyl or ethyl; R5 is a bivalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) wherein each R6 is independently ethylene, 2-methylethylene, 1-methylethylene or -C(=O)NH-R0-NHC(=O)- group, where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 1 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms or an aralkylene group of 7 to 16 carbon atoms or more specifically, hexylene or H3C ch3, each R7 is independently ethylene, 2-methylethylene or 1-methylethylene, each R8 is Petition 870240080757, dated 09 / 20 / 2024, p. 62 / 115 51 / 74 -CH—R9O R9O —R6·e, where each R9 is independently methylene, ethylene, propylene, or more specifically methylene; and the subscripts a, b, c, d, and e are integers where each is independently 0 or 1, more specifically 0, b is 0 or 1, or more specifically 1, c is 2 or 3, or more specifically 2, d is from 20 to 400, each e is independently from 0 to 100, and e is 0 or 1, more specifically 1, with the condition that if R6 is group -C(=O)NH-R0NHC(=O)-, then A is -N(R4)- and b is 0; (b) a UV light stabilizer package comprising: (i) from about 0.5 to about 3 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of at least one light stabilizer having formula (III): (III) in which R10 is hydrogen or chlorine; R11 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a group Petition 870240080757, dated 09 / 20 / 2024, p. 63 / 115 52 / 74 - CH2 R14, where R14 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a -OR15 group, where R15 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R12 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, or an -OR16 group, where R16 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R13 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a -OR39 group, where R39 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a (CH2)fC(=O)O(CgH2gO)hR17, where R17 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms or a group of formula (IV): Petition 870240080757, dated 09 / 20 / 2024, p. 64 / 115 53 / 74 (CH2)fC(=O)- (IV) with the condition that when R17 is the formula group (IV), then h is 1 to 15; and the subscripts f, g and h are integers where f is from 0 to 6, g is from 2 to 4 and h is from 0 to 15; (ii) about 0.2 to about 1.5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of at least one sterically hindered amine compound having formula (VI): wherein each A1 is independently selected from the group consisting of straight-chain alkenylene groups of 1 to 10 carbon atoms, branched-chain alkylene groups of 3 to 10 carbon atoms, or a single chemical bond; Each R25 and R27 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a hydroxyl group, an amino group, -NR382, where R38 is independently hydrogen, a straight-chain alkyl group of 1 to 6 carbon atoms, or a branched-chain alkyl group of 3 to 6 carbon atoms; Each R26 is independently a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkylene group of 3 to 10 carbon atoms Petition 870240080757, dated 09 / 20 / 2024, pp. 65 / 115 54 / 74 carbon, arylene group of 6 to 10 carbon atoms, aralkylene group of 7 to 10 carbon atoms or a divalent organic group of 1 to 20 carbon atoms containing at least one divalent oxygen atom forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group, a secondary amide group, a primary amino group, a secondary amino group or a tertiary amino group; and the subscript i is an integer from 1 to 100; or a sterically hindered amine compound having the formula (VII): R29 L JJ (VII) in which R28 is hydrogen, a monovalent or polyvalent hydrocarbon group containing from 1 to 16 carbon atoms, a monovalent or polyvalent organic group of 1 to 24 carbon atoms containing at least one triazinyl group, pyrimidinyl group, pyridinyl group, 2,4,6-trione-1,3,5-triazinyl group, divalent oxygen atoms forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group or a secondary amide group, a primary amino group, a secondary amino group or a tertiary amino group; Each R29, R30, R32 and R33 is independently a straight-chain alkyl group of 1 to 6 carbon atoms or a branched-chain alkyl group of 3 to 6 carbon atoms; Each R31 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, or an aralkyl group of 7 to 10 carbon atoms. Petition 870240080757, dated 09 / 20 / 2024, p. 66 / 115 55 / 74 carbon atoms; and the subscript j is an integer from 1 to 5. (iii) about 0.5 to about 5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of a silicon compound containing a conjugated C=C group having the general formula (VIII): A2Si(CH3)k(OR35)3-k (VIII) where A2is CH2=C(CH3)C(=O)OCH2CH2CH2-; R35 is methyl or ethyl or more specifically methyl; ek is an integer 0 or 1 or more specifically 0; (b) 0.5 to 5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of an adhesion promoter containing an alkoxysyl group having the general formula (XVI): A3[R36-Si(CH3)n(OR37)3-n]o (XVI) where A3 is a monovalent functional group selected from H2N-, H2NCH2CH2NH-, CH3NH-, CH3CH2NH-, CH3(CH2)2NH-, CH3(CH2)3NH- and glycidoxy-, a divalent functional group -NH-, or a trivalent functional group, isocyanurate-; Each R36 is independently either a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; Each R37 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; and the subscripts neo are integers where n is 0 or 1 and o is 1, 2, or 3, with the condition that when monovalent, o is 1, when A3 is divalent, o is 2, and when A3 is trivalent, o is 3, and more specifically 3-aminopropyltrimethoxysilane, 3 Petition 870240080757, dated 09 / 20 / 2024, p. 67 / 115 56 / 74 aminopropyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-ethyl 3-amino-2-methylpropyltrimethoxysilane, bis-(trimethoxysilylpropyl)amine, N,N',N'-tris-(3-trimethoxysilylpropyl)isocyanurate, N-(2-ethyl)3-aminopropylmethyl-dimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane and 3-glycidoxypropylmethyldiethoxysilane; and about 0.1 to about 3 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a) of a curing catalyst selected from the group consisting of organic dibutyltin, zirconium complex, aluminum chelate, titanium chelate, organic zinc, cobalt organic, organic iron, organic nickel and organobismuth, primary amine, secondary amine, tertiary amine and amino-functional alkoxysilane and mixtures thereof, and more specifically, tetra-tert-butyl orthotitanate, bis(ethylacetoacetate)diisobutoxide titanium(IV), bis(ethylacetoacetate)dimethoxide titanium(IV),titanium(IV)bis(ethylacetoacetate)dietoxide, titanium(IV)bis(ethylacetoacetate)monoethoxide, titanium(IV)bis(ethylacetoacetate)diisopropoxide, di-n-butyltin dilaurate, di-n-butyltin diacetate, di-n-butyltin oxide, di-n-butyltin dineodecanoate, di-n-butyltin diacetylacetonate, di-n-butyltin maleate, di-noctyltin diacetate, di-n-octyltin dilaurate, di-n-octyltin oxide, din-octyltin maleate, di-n-octyltin di(2-ethyl)hexanoate, di-noctyltin neodecanoate, di-n-octyltin isodecanoate di-n-octytin, its partial hydrolysis products of organic compounds of Tin, its partial hydrolysis products of titanium compounds, and the reaction products of these organotin compounds, titanium compounds, partial hydrolysis products of organotin compounds or titanium compounds with tetraethoxysilane, methyltriethoxysilane, methyltrimethoxysilane, propyltrimethoxysilane,3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 2-aminoethyl-3-aminopropyltrimethoxysilane, and 2-aminoethyl-3-aminopropyltrimethoxysilane. The moisture-curable silylated polymer composition is non-yellowing, that is, Petition 870240080757, dated 09 / 20 / 2024, p. 68 / 115 57 / 74 characterized as having a percentage change in the b* value, measured by a colorimeter, of -30% to about 5%, preferably from about -20% to about 0%, and most preferably from about -15% to about 0% after a UV exposure period under ISO 4892-2:2013 Annex B, Method B, cycle B7 of 7 days, wherein the percentage change in the b* value is determined by measuring the b* value using a colorimeter of the composition after curing and after UV light exposure, denoted b*(UV), and measuring the b* value after curing of the composition and before UV light exposure, denoted as b*(initial), and then using the equation: Percentage value of non-yellowing = 100% X [(b*(UV)-b*(initial)) / b*(initial)].

[0124] In another embodiment, a moisture-curable silylated polymer composition is provided comprising: (a) 100 parts by weight of an alkoxysilyl-containing polymer having the general formula (I): R5--A--CN R3— SÍCOR1^ R2. c(I) where each A is independently -O- or -N(R4) or more specifically -O-; each R1 is methyl or ethyl or more specifically methyl; each R2 is methyl; Each R3 is methylene, propylene, 2-methylpropylene, 2,2-dimethylbutylene, or more specifically propylene; Each R4 is methyl, ethyl, phenyl, or hydrogen, or more specifically methyl or ethyl; R5 is a bivalent or polyvalent group having the general formula (II): -R6O(R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) Petition 870240080757, dated 09 / 20 / 2024, page 69 / 115 58 / 74 where each R6 is independently ethylene, 2-methylethylene, 1-methylethylene or -C(=O)NH-R0-NHC(=O)- group, where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms or an aralkylene group of 7 to 16 carbon atoms or more specifically, hexylene or H3C - CH2--^CH- H3C ch3, each R7 is independently ethylene, 2-methylethylene or 1-methylethylene, each R8 is -CH—R9O R9O ^R7O^—R6' 'e, where each R9 is independently methylene, ethylene, propylene, or more specifically methylene; and the subscripts a, b, c, d, and e are integers where each is independently 0 or 1, more specifically 0, b is 0 or 1, or more specifically 1, c is 2 or 3, or more specifically 2, d is from 20 to 400, each e is independently from 0 to 100 and e is 0 or 1, more specifically 1, with the condition that if R6 is group -C(=O)NH-R0NHC(=O)-, then A is -N(R4)- and b is 0; (b) a UV light stabilizer package comprising: (i) from about 0.5 to about 3 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of at least one light stabilizer having formula (III): Petition 870240080757, dated 09 / 20 / 2024, pp. 70 / 115 59 / 74 in which R10 is hydrogen or chlorine; R11 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a group R14, where R14 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a -OR15 group, where R15 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R12 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, or an -OR16 group, where R16 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R13 is hydrogen, a straight-chain alkyl group of 1 to 12 atoms. Petition 870240080757, dated 09 / 20 / 2024, pp. 71 / 115 60 / 74 carbon, a branched-chain alkyl group of 3 to 12 carbon atoms, an -OR39 group, where R39 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a (CH2)fC(=O)O(CgH2gO)hR17, where R17 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms or a group of formula (IV): (CH2)fC(=O)- (IV) with the condition that when R17 is the formula group (IV), then h is 1 to 15; and the subscripts f, g and h are integers where f is from 0 to 6, g is from 2 to 4 and h is from 0 to 15; (ii) about 0.2 to about 1.5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of at least one sterically hindered amine compound having formula (VI): wherein each A1 is independently selected from the group consisting of straight-chain alkenylene groups of 1 to 10 carbon atoms, branched-chain alkylene groups of 3 to 10 carbon atoms, or a single chemical bond; Each R25 and R27 is independently hydrogen, a chain alkyl group. Petition 870240080757, dated 09 / 20 / 2024, p. 72 / 115 61 / 74 straight chain of 1 to 10 carbon atoms, a branched chain alkyl group of 3 to 10 carbon atoms, a hydroxyl group, an amino group, -NR382, where R38 is independently hydrogen, a straight chain alkyl group of 1 to 6 carbon atoms or a branched chain alkyl group of 3 to 6 carbon atoms; each R26 is independently a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkylene group of 3 to 10 carbon atoms, an arylene group of 6 to 10 carbon atoms, an aralkylene group of 7 to 10 carbon atoms, or a divalent organic group of 1 to 20 carbon atoms containing at least one divalent oxygen atom forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group, a secondary amide group, a primary amino group, a secondary amino group, or a tertiary amino group; and the subscript i is an integer from 1 to 100; or a sterically hindered amine compound having the formula (VII): R29 L JJ (VII) in which R28 is hydrogen, a monovalent or polyvalent hydrocarbon group containing from 1 to 16 carbon atoms, a monovalent or polyvalent organic group of 1 to 24 carbon atoms containing at least one triazinyl group, pyrimidinyl group, pyridinyl group, 2,4,6-trione-1,3,5-triazinyl group, divalent oxygen atoms forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary amide group or a secondary amide group, a primary amino group, a secondary amino group or a tertiary amino group; Petition 870240080757, dated 09 / 20 / 2024, pp. 73 / 115 62 / 74 each R29, R30, R32 and R33 is independently a straight-chain alkyl group of 1 to 6 carbon atoms or a branched-chain alkyl group of 3 to 6 carbon atoms; Each R31 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms, or an aralkyl group of 7 to 10 carbon atoms; and the subscript j is an integer from 1 to 5. (iii) about 0.5 to about 5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of a silicon compound containing a conjugated C=C group having the general formula (VIII): A2Si(CH3)k(OR35)3-k (VIII) where A2 is phenyl R35 is methyl or ethyl or more specifically methyl; ek is an integer 0 or 1 or more specifically 0; (c) from about 0.5 to about 5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a) of an adhesion promoter containing an alkoxysyl group having the general formula (XVI): A3[R36-Si(CH3)n(OR37)3-n]o (XVI) where A3 is a monovalent functional group selected from H2N-, H2NCH2CH2NH-, CH3NH-, CH3CH2NH-, CH3(CH2)2NH-, CH3(CH2)3NH- and glycidoxy-, a divalent functional group -NH-, or a trivalent functional group, isocyanurate-; Each R36 is independently either a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms. Petition 870240080757, dated 09 / 20 / 2024, pp. 74 / 115 63 / 74 carbon; Each R37 is independently either a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; and the subscripts neo are integers where n is 0 or 1 and o is 1, 2, or 3, with the condition that when monovalent, o is 1, when A3 is divalent, o is 2, and when A3 is trivalent, o is 3, and more specifically 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-ethyl 3amino-2-methylpropyltrimethoxysilane, bis-(trimethoxysilylpropyl)amine, N,N',N'-tris-(3-trimethoxysilylpropyl)isocyanurate, N-(2-ethyl)3-aminopropylmethyl-dimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane and 3-glycidoxypropylmethyldiethoxysilane; and (d) about 0.1 to about 3 parts by weight per 100 parts by weight of the alkoxysilyl-containing polymer (a) of a curing catalyst selected from the group consisting of organic dibutyltin, zirconium complex, aluminum chelate,titanium chelate, organic zinc, organic cobalt, organic iron, organic nickel and organobismuth, primary amine, secondary amine, tertiary amine and amino-functional alkoxysilane and mixtures thereof, and more specifically, ortho-tercabutyl bis(ethyl acetoacetate)di-titanium(IV) isobutoxide, bis(ethyl acetoacetate)titanium(IV) dimethoxide, bis(ethyl acetoacetate)titanium diethoxide(IV), bis(ethyl acetoacetate)titanium monoethoxide)depropathoether(IV) titanium(IV), di-n-butylstanhol dilaurate, di-n-butylstane diacetate, di-n-butylstane oxide, di-n-butylstanhol dineodecanoate, di-n-butylstanhol diacetylacetonate, di-n-butylethylstane maleate, dino- butylethylstane maleate di-n -octylstanhol, di-n-octylstanhol oxide, din-octylstanhol maleate, di(2-ethyl)hexanoate, di-n-octylstanhol neodecanoate, di-n-octylstanhol neodecanoate, hydrolysis products Petition 870240080757, dated 09 / 20 / 2024, pp. 75-115 64 / 74 organotin compounds, their partial hydrolysis products of titanium compounds, and the reaction products of these organotin compounds, titanium compounds, partial hydrolysis products of organotin compounds or titanium compounds with tetraethoxysilane, methyltriethoxysilane, methyltrimethoxysilane, propyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 2-aminoethyl-3-aminopropyltrimethoxysilane and 2-aminoethyl-3-aminopropyltrimethoxysilane.The moisture-curable silylated polymer composition is a non-yellowing composition characterized by a percent change in the b* value, measured by a colorimeter, of -30% to about 5%, preferably from about -20% to about 0%, and most preferably from about -15% to about 0% after a UV exposure period under ISO 4892-2:2013 Annex B, Method B, cycle B7 of 7 days, where the percent change in the b* value is determined by measuring the b* value using a colorimeter of the composition after curing and after exposure to UV light, denoted b*(UV), and measuring the b* value after curing of the composition and before exposure to UV light, denoted as b*(initial) and then using the equation:. Percentage value of non-yellowing = 100% X [(b*(UV)-b*(initial)) / b*(initial)].

[0125] As noted above, the use of the silicon compound with a conjugated structure in conjunction with the liquid UV absorber provides a decrease or prevention of any yellowing in the moisture-curable composition and, preferably, the moisture composition is optically transparent. Preferably, the moisture-curable composition has a smaller amount of yellowing after exposure to UV light than an identical moisture-curable composition that is in the absence of a silicon compound possessing a conjugated structure. The amount of yellowing, if any, or its decrease, can be determined by visual inspection and / or by using a colorimeter of the cured composition, before and / or after exposure of the cured composition to ultraviolet light, for example, after exposure to sunlight, for a period of about 1 Petition 870240080757, dated 09 / 20 / 2024, pp. 76 / 115 65 / 74 hours to about 1 year, preferably from about 1 day to about 6 months, and more preferably from about one month to about 3 months.

[0126] Also provided in this document is a method for making the moisture-curable composition comprising mixing the alkoxysilyl-containing polymer (a) with the UV light stabilizer package (b) comprising (i) at least one light stabilizer, (ii) in less sterically hindered amine and (iii) a silicon-containing compound containing a conjugated C=C group, at least one adhesion promoter (c) and at least one curing catalyst (d), as well as with any other optional materials described in this document. The mixing can be carried out with conventional equipment as will be known to those skilled in the art. The addition of components (a) to (d), and any optional components, can be carried out simultaneously, or with any permutation or combination of methods of adding these components.

[0127] The moisture-curable silylated polymer compositions of this invention can be used in the preparation of sealant or adhesive formulations, or in coating applications or caulking or sealing applications that are used in buildings, aircraft, bathroom fixtures, or automotive equipment. Another desirable feature of these moisture-curable silylated polymer compositions is their ability to be applied to damp or wet surfaces and to cure into a cross-linked elastomer without deleterious effects, the cured product becoming free of adhesion within a relatively short period. Furthermore, the cured composition of this invention adheres strongly alone or with the aid of a primer to a wide variety of substrates such as glass, porcelain, wood, metals, polymeric materials, and the like, making it especially suitable for any type of caulking, adhesive, or lamination applications.

[0128] In one embodiment, the transparency of the moisture-curable silylated polymer after curing is 85 to 100 and the turbidity is 0 to 50, as measured from Petition 870240080757, dated 09 / 20 / 2024, p. 77 / 115 66 / 74 according to ASTM D-1003 - Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics.

[0129] Although the invention has been described with reference to various embodiments, it will be understood by those skilled in the art that various alterations may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. Furthermore, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its essential scope. Therefore, it is intended that the invention is not limited to any particular embodiment disclosed in this document. EXAMPLES

[0130] The following non-restrictive examples are further illustrative of the invention. Preparation of alkoxysyl-containing polymer (a)

[0131] In a 1-liter resin kettle, 400 grams of dry hydroxyl-terminated polypropylene oxide (obtained from Zhejiang Huangma Chemical under the trade name HMBT-120, hydroxyl number of 9.93 mg KOH / gram), 2 grams of benzenepropanoic acid, branched 3,5-bis(1,1-dimethylethyl)-4-hydroxy-C7-C9 alkyl esters (obtained from BASF under the trade name Irganox®1135) and 10 ppm of dibutyltin dilaurate (obtained from Momentive Performance Materials, Inc. under the trade name Formez SUL-4) were loaded and heated to 40 °C with stirring and a nitrogen mantle. Isophorone diisocyanate (3.76 grams, 0.0169 mol, obtained from Covestro under the trade name Desmodur®, 0.0169 mol) was added to the kettle. The reaction mixture was heated to a temperature of 70 °C to 75 °C. The reaction was monitored by measuring the isocyanate content.When the NCO content was close to zero, as measured by titration, 7.08 grams of 3-isocyanatopropyltrimethoxysilane (0.0339 mol, obtained from Momentive Performance Materials, Inc. under the trade name A-Link 35 silane) were added to the mixture. Petition 870240080757, dated 09 / 20 / 2024, pp. 78 / 115 67 / 74 was heated to approximately 83 °C until the NCO content was close to zero by titration, then the heat was turned off and 0.3 grams of methanol and 0.39 grams of vinyltrimethoxysilane (obtained from Momentive Performance Materials, Inc. under the trade name Silquest® A-171 silane) were added. Examples 1 to 5 and Comparative Examples I to V Clear, transparent, pale yellow and non-yellowing moisture-curable silylated polymer compositions and comparative compositions

[0132] In a mixer, the alkoxysilyl-containing polymer (a) prepared above, a desiccant, the light stabilizer (b)(i) and the sterically hindered amine (b)(ii) were loaded. The components were mixed in a speed mixer at 27,500 rpm for 1 minute. The plasticizer and rheology modifier were added and mixed at 27,500 rpm for 2 minutes. The lid on the mixer was opened and the mixture was scraped from the walls and mixed again. The scraping and mixing steps were repeated three times or until the mixture was homogeneous. The silicon compound containing the C=C group (b)(iii), if present, or the other silicon compounds if present and the adhesion promoter (c) were added and mixed at 27,000 rpm for 2 minutes. Finally, the curing catalyst (d) was added and mixed at 27,000 rpm for 1 minute.The quantities of the ingredients are presented in Table 1. The film was molded and cured for testing. Table 1. The ingredients and quantities of each compound for Examples 1 to 5 and Comparative Examples I to V are presented. Table 1 Ingredient Example 1 Example 2 Example 3 Example 4 Example 5 1 Polymer containing alkoxysilyl (a), parts 100 100 100 100 100 2 Light stabilizer (b)(i)(1), parts 1.00 1.00 3 Light stabilizer (b)(i)(2), parts 1.00 1.00 4 Light stabilizer (b)(i)(3), parts 1.00 5 Sterically hindered amine (b)(ii)(1), parts 0.50 0.50 0.50 6 Sterically hindered amine (b)(ii)(2), parts 0.50 0.50 7 Silicon-containing compound (b)(iii)(1), parts 1.85 1.85 1.85 8 Silicon-containing compound (b)(iii)(2), parts 1.85 1.85 9Membership promoter (c)(1), parts 2.22 2.22 2.22 Petition 870240080757, dated 09 / 20 / 2024, page 79 / 115 68 / 74 10 Adhesion promoter (c)(2), parts 2.22 2.22 ^ Curing catalyst (d)(1), parts 0.54 0.54 0.54 0.54 0.54 12 Other silicon compound (1), parts 13 Other silicon compound (2), parts 14 Other silicon compound (3), parts 15 Other silicon compound (4), parts 16 Desiccant, vinyltrimethoxysilane, parts 2.04 2.04 2.04 2.04 2.04 17 Rheology modifier, parts 16.33 16.33 16.33 16.33 16.33 18 Plasticizer, parts 60.70 60.70 60.70 60.70 60.70 Table 1. Continued. Ingredient Ex. Comp. I Ex. Comp. II Ex. Comp. III Ex. Comp. IV Ex. Comp.V 1 Polymer containing alkoxysilyl (a), parts 100 100 100 100 100 2 Light stabilizer (b)(i)(1), parts 1.00 3 Light stabilizer (b)(i)(2), parts 1.00 1.00 1.00 4 Light stabilizer (b)(i)(3), parts 1.00 5 Sterically hindered amine (b)(ii)(1), parts 0.50 0.50 6 Sterically hindered amine (b)(ii)(2), parts 0.50 0.50 7 Silicon-containing compound (b)(iii)(1), parts 8 Silicon-containing compound (b)(iii)(2), parts 9 Adhesion promoter (c)(1), parts 2.22 2.22 2.22 10 Adhesion promoter (c)(2), parts 2.22 2.22 ^Curing catalyst (d)(1), parts 0.54 0.54 0.54 0.54 0.54 12Other silicon compound (1), parts 1.85 1.85 13Other silicon compound (2), parts 1.85 14Other silicon compound (3), parts 1.85 15Other silicon compound (4), parts 1.85 16Desiccant, vinyltrimethoxysilane, parts 2.04 2.04 2.04 2.04 2.04 17Rheology modifier (1), parts 16.33 16.33 16.33 16.33 16.33 18Plasticizer, parts 60.70 60.70 60.70 60.70 60,70. 1 Polymer contains alkoxysilila (a) acidic preparation. 2Light stabilizer (b)(i)(1): a mixture of poly(óxi-1,2-etanodi-il), a-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4hidroxiphenil)-1-oxopropyl)-ω-hidróxi (CAS # 104810-48-2) and poly(óxi-1,2-ethanodi-yl), a-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)4-hidroxyphenyl)-1-oxopropyl-ω-(3-(3-(2H-benzotriazol-2-yl-5-(1,1 -dimethylethyl)-4-hidroxyphenyl)-1 -oxopropóxi) (CAS # 104810-48-1), obtained from BASF sob or commercial name Tinuvin® 213; 3Light stabilizer (b)(i)(2): a mixture of poly(óxi-1,2-etanodi-il), a-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4hidroxiphenil)-1-oxopropyl)-ω-hidróxi (CAS # 104810-48-2) and poly(oxy-1,2-ethanodi-yl), a-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)4-hidroxyphenyl)-1-oxopropyl-ω-(3-(3-(2H-benzotriazol-2-yl-5-(1,1-dimethylethyl)-4-hidroxyphenyl)-1-oxopropóxi) (CAS # 104810-48-1), and polyethylene glycol 300 CAS # 25322-68-3 (PEG 300), obtained from Everlight Chemical sob or commercial name Eversorb® 80; 4Light stabilizer (b)(i)(3): N-(2-Etoxifenil)-N-(4-ethylphenyl)-ethlienodiamida (CAS # 23949-66-8), obtained from BASF under the commercial name Tinuvin®312; 5Esterically hindered amine (b)(ii)(1): a mixture of bis-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl) sebacate (CAS # 41556-267) and methyl-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl) sebacate. CAS # 82919-37-7, obtained from BASF sob or commercial name Tinuvin® 292; 6Sterically hindered amine (b)(ii)(2): a mixture of bis-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl)sebacate (CAS # 41556-267) and methyl-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl)sebacate (CAS # 82919-37-7), obtained from Everlight Chemical under the trade name Eversorb®93; Petition 870240080757, dated 09 / 20 / 2024, pp. 80 / 115 69 / 747Silicon-containing compound (b)(iii)(1): phenyltrimethoxysilane, obtained from Gelest; 8Silicon-containing compound (b)(iii)(2): 3-methacryloxypropyltrimethoxysilane, obtained from Momentive Performance Materials under the trade name Silquest® A-174 silane; 9Adhesion promoter (c)(1): 3-aminopropyltrimethoxysilane, obtained from Momentive Performance Materials, Inc. under the trade name Silquest® A-1110 silane; 10Adhesion promoter (c)(3): 4-amino-3,3-dimethylbutyltrimethoxysilane, obtained from Momentive Performance Materials, Inc. under the trade name A-Link®600 silane; 11Curing catalyst (d)(1): dioctyltin dilaurate, obtained from Momentive Performance Materials, Inc. under the trade name Fomrez® UL-59 catalyst; 12Other silicon compound (1): methyltrimethoxysilane, obtained from Momentive Performance Materials, Inc. under the trade name Silquest®A-1630 silane; 13Another silicon compound (2): a methyl phenyl resin, obtained from Momentive Performance Materials, Inc. under the trade name TSR 165; 14Another silicon compound (3): a poly(dimethylsiloxy-diphenylsiloxy) copolymer, obtained from Momentive Performance Materials, Inc. under the trade name CoatOSil FLEX; 15Other silicon compound (4): a silicone resin available from Momentive Performance Materials, Inc. under the trade name XR31-B1410; 16Desiccant: vinyltrimethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest® A-171 silane; 17Rheology modifier: hydrophobic fumed silica, obtained from Evonik under the trade name Aerosil® R 812S; and 18Plasticizer: di-isononyl adipate, obtained from ExxonMobil under the trade name Jayflex® DINA. Testing methods Mechanical properties:

[0133] The transparent sealant formulations described above were molded in HDPE molds to form films approximately 2.5 mm thick. The films were cured in a humid chamber at 23 °C and 50% RH for 7 days. The films were removed from the mold and ready for testing.

[0134] UV resistance test: Cured samples were exposed to xenon arc lamps in a Q-Sun xenon test chamber according to ISO 4892-2:2013 Annex B Method B cycle B7 for 7 days. Yellowing and mechanical properties were tested before and after xenon exposure.

[0135] Mechanical properties test - Tensile properties were tested following ASTM D412 and ASTM C661 to determine Shore A hardness. Mechanical properties were tested before and after exposure to xenon lights.

[0136] Measuring yellow coloration - Samples were tested with DIE-LAB Petition 870240080757, dated 09 / 20 / 2024, pp. 81 / 115 70 / 74 by the Minolta colorimeter (L*a*b*). The Minolta white calibration plate has a b* value of ~4.25. The cured transparent sealant sheet was placed on top of the white calibration plate to measure the color. The b* value was recorded and compared before and after exposure in a xenon test chamber.

[0137] Adhesion on different substrates: Adhesion was determined using a modified version of the ASTM C-794 180° peel test. Each peel sample contained two 1” wide metal mesh strips embedded in the sealant. Samples were cured in a humid chamber at 23°C and 50% RH for three weeks. The peel samples were then cut along the 1” wide metal mesh strips and mounted on the Instron. The crosshead speed for the 180° peel test is two inches per minute. Each sample was pulled approximately two inches and peel resistance and failure mode were observed, whether cohesive or adhesive failure.

[0138] The test results are presented in Table 2. Table 2. Test results for Examples 1 to 5 and Examples Comparisons I to V are presented. Color Properties Example 1 Example 2 Example 3 Example 4 Example 5 Initial yellow color, b* (L*a*b*) 4.95 4.35 4.73 3.40 4.11 Percent value of non-yellowing -25.9% -15.3% -8.9% 4.7% -13.9% Mechanical Properties Initial (before UV exposure) Tensile strength @ BK (psi) 134 137 129 128 135 Elongation @ BK (%) 253 243 243 209 183 Modulus @ 100% extension (psi) 52 56 54 61 75 Shore A hardness 19 20 16 24 24 After 7 days in Xenon Tensile strength @ BK (psi) 151.9 141.6 142.4 134.3 156.5 Elongation @ BK (%) 389.3 309.9 342.7 263.2 255.5 Modulus @ 100% extension (psi) 41.6 49.1 47.1 55.6 67.0 Shore A Hardness 19 20 16 24 24 Petition 870240080757, dated 09 / 20 / 2024, page 82 / 115 71 / 74 180-degree peeling (ASTM C794, unit: lbs / in / % CF) Glass 19 / 100 19 / 100 19 / 95 10 / 100 9 / 100 Anodized Aluminum 13 / 100 15 / 100 21 / 100 0 / 0 0 / 0 Lexan 19 / 70 12 / 100 17 / 100 9 / 100 7 / 100 Table 2. Continued. Color Properties Ex. Comp. I Ex. Comp. II Ex. Comp. III Ex. Comp. IV Ex. Comp. Initial yellow color, b* (L*a*b*) 2.91 3.79 5.50 6.80 6.70 Percentage value of non-yellowing 11.2% 12.1% 42% 32% 45% Mechanical properties Initial (before UV exposure) Tensile strength @ BK (psi) 150 153 -- Elongation @ BK (%) 219 249 Modulus @ 100% extension (psi) 67 61 Shore A hardness 22 22 After 7 days in Xenon Tensile strength @ BK (psi) 152.1 155.6 147 176 156 Elongation @ BK (%) 307.9 323.7 199 244 190 Modulus @ 100% extension (psi) 53.1 51.9 59 52 64 Shore A Hardness 22 22 20 19 21 180-degree peeling (ASTM C794, unit: lbs / in / % CF) Glass 13 / 100 15 / 95 12.2 / 100 14 / 100 7.3 / 100 Anodized Aluminum 10 / 50 16 / 100 13.4 / 100 10.7 / 100 8.4 / 100 Lexan 14 / 100 12 / 100 1.5 / 0 13.4 / 100 7.5 / 100

[0139] The data from Examples 1 to 5 demonstrate the advantage of using silicon compounds containing a conjugated C=C group (b)(iii). For example, the phenyltrimethoxysilane used in Example 1 had a non-yellowing percent value of -25.9. After exposure to UV radiation, the sample becomes less yellow. However, Comparative Example I, which was a very similar formulation except that the phenyltrimethoxysilane was replaced by an equal amount of methyltrimethoxysilane, had a non-yellowing percent value of 11.2, indicating that the cured composition became more yellow after exposure to UV radiation. Examples 3 and 5, which also used phenyltrimethoxysilane as the Petition 870240080757, dated 09 / 20 / 2024, page 83 / 115 72 / 74 silicon compounds containing a conjugated C=C group (b)(iii), but with a different light stabilizer (b)(i), sterically hindered amine (b)(ii) and / or adhesion promoter (c) had non-yellowing percent values ​​of -8.9% and -13.9%, indicating that the cured compositions became less yellow after exposure to UV radiation. When the silicon compounds containing a conjugated C=C group (b)(iii) were 3-methacryloxypropyltrimethoxysilane, such as, for example, Example 2, the non-yellowing percent value was -15.3%, indicating that this compound was an effective component in the UV light stabilizer package. Comparative Examples I, which contained a silicon compound without the conjugated C=C group, did not provide the same level of non-yellowing benefit. Examples 6 to 8 and Comparative Example VI Clear, transparent, pale yellow, non-yellowing moisture-curable silylated polymer compositions and comparative composition

[0140] Examples 6 to 8 and Comparative Example VI were prepared according to the procedure of Example 1. The compositions of the compositions are presented in Table 3 and the results in Table 4. Transparency and turbidity were determined using a Haze Gard PLUS instrument available from BYK Gardner. Table 3. The ingredients and quantities of each compound for the Examples 1 to 5 and Comparative Examples I to V are presented. Ingredient Ex. Comp. VI Example 6 Example 7 Example 4 19 Polymer containing alkoxysilyl (a), parts 100 100 100 100 20 Light stabilizer (b)(i)(1), parts 1.00 1.00 1.00 1.00 21 Sterically hindered amine (b)(ii)(1), parts 0.50 0.50 0.5 0.5 22 Silicon-containing compound (b)(iii)(1), parts 1.85 1.85 23 Silicon-containing compound (b)(iii)(2), parts 1.85 24 Adhesion promoter (c)(1), parts 2.22 2.22 2.22 25 Adhesion promoter (c)(2), parts 2.22 26 Curing catalyst (d)(1), parts 0.54 0.54 0.54 0.54 27 Other silicon compound (5), parts 1.85 28 Desiccant, vinyltrimethoxysilane, parts 2.04 2.04 2.04 2.04 29 Rheology modifier (1), parts 16.33 16.33 30 Rheology modifier (2) 16.33 16.33 31 Plasticizer, parts 60.70 60.70 60.70 60.70 Petition 870240080757, dated 09 / 20 / 2024, page 84 / 115 73 / 7419 Polymer containing alkoxysilyl (a) prepared above. 20Light Stabilizer (b)(i)(1): a mixture of poly(oxy-1,2-ethanedi-yl), a-(3-(3-(2Hbenzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl)-ω-hydroxy (CAS # 104810-48-2) and poly(oxy-1,2-ethanedi-yl), a-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1oxopropyl-ω-(3-(3-(2H-benzotriazol-2-yl-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropoxy) (CAS # 104810-48-1), obtained from BASF under the trade name Tinuvin® 213; 21 Sterically hindered amine (b)(ii)(1): a mixture of bis-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl) sebacate (CAS # 41556-26-7) and methyl-(N-methyl-2,2,6,6-tetramethyl-4-piperidinyl) sebacate. CAS # 82919-37-7, obtained from BASF under the trade name Tinuvin® 292; 22Silicon-containing compound (b)(iii)(1): phenyltrimethoxysilane, obtained from Gelest; 23Silicon-containing compound (b)(iii)(2): 3-methacryloxypropyltrimethoxysilane, obtained from Momentive Performance Materials under the trade name Silquest® A-174 silane; 24Adhesion promoter (c)(1): 3-aminopropyltrimethoxysilane, obtained from Momentive Performance Materials, Inc. under the trade name Silquest® A-1110 silane; 25Adhesion promoter (c)(3): 4-amino-3,3-dimethylbutyltrimethoxysilane, obtained from Momentive Performance Materials, Inc. under the trade name A-Link® 600 silane; 26Curing catalyst (d)(1): dioctyltin dilaurate, obtained from Momentive Performance Materials, Inc. under the trade name Fomrez® UL-59 catalyst; 27Another silicon compound (5): 3-ureidopropyltrimethoxysilane, obtained from Momentive Performance Materials, Inc. under the trade name Silquest® A-1524 silane; 28Desiccant: vinyltrimethoxysilane, available from Momentive Performance Materials, Inc. under the trade name Silquest® A-171 silane; 29Rheology modifier: hydrophobic fumed silica, obtained from Evonik under the trade name Aerosil® R 812S; 30Rheology modifier: hydrophobic fumed silica, obtained from Cabot under the trade name Cab-O-Sil® Ultrabond; 31. Plasticizer: di-isononyl adipate, obtained from ExxonMobil under the trade name Jayflex®DINA Table 4. The test results for Examples 6 to 8 and Comparative Example VI are presented. Color Properties Ex. Comp. VI Example 6 Example 7 Example 8 Initial yellow color, b* (L*a*b*) 8.4 5.4 7.5 5.5 Initial transparency 82.2 90.8 87.5 90.3 Initial turbidity 77.9 42.2 36.7 41.2 Transparency after exposure to 81.2 90.6 86.3 90 Petition 870240080757, dated 09 / 20 / 2024, pp. 85 / 115 74 / 74 UV radiation for 168 hours. Cloudiness after exposure to UV radiation for 168 hours. 76 35.5 44.2 43.5

[0141] These data demonstrated that the initial transparency of Examples 6 to 8 ranged from 87.5 to 90.8, while Comparative Example VI was 82.2. The initial turbidity of Examples 6 to 8 ranged from 36.7 to 42.2, while Comparative Example VI was 77.9 (a higher number is indicative of a more turbid and less clear cured composition). Exposure to UV radiation for 168 hours did not significantly alter the values.

[0142] Surprisingly and unexpectedly, the presence of silicon compounds containing conjugated C=C groups, but which were oligomeric or polymeric, such as Comparative Example III, which contained a phenylmethylsiloxy repeating unit, or Comparative Example IV, which contained a diphenylsiloxy repeating unit, had weak non-yellowing properties. The non-yellowing percent value was 42% and 32% for Comparative Example III and IV, respectively.

Claims

CLAIMS 1. Moisture-curable silylated polymer composition CHARACTERIZED in that it comprises: (a) an alkoxysyl-containing polymer having the general formula (I): R5 --A--CN R3—Si(OR1)3-a R2a c (I) wherein each A is independently -O- or -N(R4); each R1 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 or 4 carbon atoms; each R2 is independently methyl or phenyl; each R3 is independently a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; Each R4 is independently hydrogen, a straight-chain alkyl group of 1 to 6 carbon atoms, a branched-chain alkyl group of 3 to 6 carbon atoms, or a cycloalkyl group of 5 to 8 carbon atoms.a phenyl group or a -R3-Si(R2)a(OR1)3-a group; R5 is a bivalent or polyvalent group having the general formula (II): -R6O (R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is independently a straight-chain alkylene group of 2 to 6 carbon atoms, a branched-chain alkylene group of 3 to 6 carbon atoms or a -C(=O)NH-R0-NHC(=O)- group, where R0 is a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 Petition 870240080757, dated 20 / 09 / 2024, p. 87 / 115 2 / 13 a cycloalkylene group of 6 to 16 carbon atoms, an arylene group of 6 to 10 carbon atoms, an arenylene group of 7 to 16 carbon atoms, or an aralkylene group of 7 to 16 carbon atoms, each R7 is independently a straight-chain alkylene group of 2 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms, each R8 is -CH—R9O R9O—^R7O^—R6' ' 'e ,where each R9 is independently a straight-chain alkylene group of 1 to 5 carbon atoms or a branched-chain alkylene group of 3 to 5 carbon atoms; and the subscripts a, b, c, d, e, and m are integers where each a is independently 0 or 1, b is 0 or 1, c is 2 or 3, each d is independently from 20 to 400, each e is independently from 0 to 100, and m is 0 or 1, with the condition that if R6 is a -C(=O)NH-R0-NHC(=O)- group, then A is -N(R4) and b is 0; (b) a UV light stabilizer package comprising: (i) (a) at least one light stabilizer having formula (III): (III) where R10 is a hydrogen or chlorine group; R11 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, a group Petition 870240080757, dated 20 / 09 / 2024, p. 88 / 115 3 / 13 - CH2 where R14 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms,or an -OR15 group, where R15 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R12 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, or an -OR16 group, where R16 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms; R13 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms, an -OR39 group, where R39 is a straight-chain alkyl group of 1 to 12 carbon atoms or a branched-chain alkyl group of 3 to 12 carbon atoms, or a (CH2)fC(=O)O(CgH2gO)hR17, where R17 is hydrogen, a straight-chain alkyl group of 1 to 12 carbon atoms, a branched-chain alkyl group of 3 to 12 carbon atoms or a group of formula (IV): Petition 870240080757,from 20 / 09 / 2024, page 89 / 115 4 / 13 (CH2)fC(=O)- (IV) the subscripts f, g and h are integers where f is from 0 to 6, g is from 2 to 4 and h is from 0 to 15, with the condition that when R17 is the formula group (IV), then h is 1 to 15; or (i) (b) a light stabilizer having formula (V): R22 (V) wherein each R18, R19, R20, R21, R22 and R23 is independently hydrogen, a straight-chain alkyl group of 1 to 16 carbon atoms, a branched-chain alkyl group of 3 to 16 carbon atoms or an -OR24, wherein each R24 is independently a straight-chain alkyl group of 1 to 16 carbon atoms or a branched-chain alkyl group of 3 to 16 carbon atoms; and (ii) (a) at least one sterically hindered amine compound having formula (VI): R25 wherein Petition 870240080757, dated 20 / 09 / 2024, p. 90 / 115 5 / 13 each A1 is independently selected from the group consisting of straight-chain alkenylene groups of 1 to 10 carbon atoms,alkylene groups with a branched chain of 3 to 10 carbon atoms and a single chemical bond; each R25 and R27 is independently hydrogen, a straight-chain alkyl group with 1 to 10 carbon atoms, a branched-chain alkyl group with 3 to 10 carbon atoms, a hydroxyl group, an amino group, -NR382, where R38 is independently hydrogen, a straight-chain alkyl group with 1 to 6 carbon atoms or a branched-chain alkyl group with 3 to 6 carbon atoms; Each R26 is independently a straight-chain alkylene group of 1 to 10 carbon atoms, a branched-chain alkylene group of 3 to 10 carbon atoms, an arylene group of 6 to 10 carbon atoms, an aralkylene group of 7 to 10 carbon atoms, or a divalent organic group of 1 to 20 carbon atoms containing at least one divalent oxygen atom forming an ether group, a -C(=O)O- group forming an ester functional group, a carbonyl group, a primary starch group, a secondary starch group,a primary amino group, a secondary amino group or a tertiary amino group; and the subscript i is an integer from 1 to 100; or (ii) (b) a sterically hindered amine compound having the formula (VII): R29 LJJ (VII) wherein R28 is hydrogen, a monovalent or polyvalent hydrocarbon group containing from 1 to 16 carbon atoms, a monovalent or polyvalent organic group of 1 to 24 carbon atoms containing at least one triazinyl group, Petition 870240080757, 20 / 09 / 2024, p. 91 / 115 6 / 13 pyrimidinyl group, pyridinyl group, 2,4,6-trione-1,3,5-triazinyl group, divalent oxygen atoms forming an ether group, a -C(=O)O- group forming an ester functional group, carbonyl group, a primary amide group or a secondary amide group, a primary amino group, a secondary amino group or a tertiary amino group; each R29, R30,R32 and R33 is independently a straight-chain alkyl group of 1 to 6 carbon atoms or a branched-chain alkyl group of 3 to 6 carbon atoms; each R31 is independently hydrogen, a straight-chain alkyl group of 1 to 10 carbon atoms, a branched-chain alkyl group of 3 to 10 carbon atoms, an aryl group of 6 to 10 carbon atoms or an aralkyl group of 7 to 10 carbon atoms; and the subscript j is an integer from 1 to 5; and (iii) a silicon compound containing a conjugated C=C group having the general formula (VIII): A2Si(CH3)k(OR35)3-k (VIII) where A2 is CH2=C(CH3)C(=O)OCH2CH2CH2- or phenyl; R35 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 or 4 carbon atoms; ek is an integer 0 or 1; and an adhesion promoter containing an alkoxysyl group having the general formula (XVI): A3[R36-Si(CH3)n(OR37)3-n]o (XVI) where A3 is a monovalent functional group selected from H2N-,H2NCH2CH2NH-, CH3NH-, CH3CH2NH-, CH3(CH2)2NH-, CH3(CH2)3NH- and glycidoxy-, a divalent functional group -NH-, or a trivalent functional group, isocyanurate-; Petition 870240080757, dated 09 / 20 / 2024, p. 92 / 115 7 / 13 each R36 is independently a straight-chain alkylene group of 1 to 6 carbon atoms or a branched-chain alkylene group of 3 to 6 carbon atoms; each R37 is independently a straight-chain alkyl group of 1 to 4 carbon atoms or a branched-chain alkyl group of 3 to 4 carbon atoms; (c) the subscripts neo are integers where n is 0 or 1 and o is 1, 2 or 3, with the conditions that when monovalent, o is 1, when A3 is divalent, o is 2 and when A3 is trivalent, o is 3; and (d) a curing catalyst.

2. Moisture-curable silylated polymeric composition according to claim 1, CHARACTERIZED in that the adhesion promoter containing an alkoxysilyl group (c) is 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, N-ethyl 3-amino-2-methylpropyltrimethoxysilane, bis-(trimethoxysilylpropyl)amine, N,N',N"-tris-(3-trimethoxysilylpropyl)isocyanurate, N-(2-ethyl)3-aminopropylmethyl-dimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane or 3-glycidoxypropylmethyldiethoxysilane.

3. Moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that the curing catalyst (d) is selected from the group consisting of organic dibutyltin, zirconium complex, aluminum chelate, titanium chelate, organic zinc, organic cobalt, organic iron, organic nickel and organobismuth, primary amine, secondary amine, tertiary amine and amino-functional alkoxysilane and mixtures thereof.

4. Moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that the curing catalyst (d) is selected from the group consisting of tetra-titanate ortho-titanate Petition 870240080757, dated 09 / 20 / 2024, page 1. 93 / 115 8 / 13 tert-butyl, bis(ethylacetoacetate)diisobutoxide titanium(IV), bis(ethylacetoacetate)dimethoxide titanium(IV), bis(ethylacetoacetate)dietoxide titanium(IV), bis(ethylacetoacetate)monoethoxide monomethoxide titanium(IV), titanium(IV) bis(ethylacetoacetate)diisopropoxide, di-n-butyltin dilaurate, di-n-butyltin diacetate, di-n-butyltin oxide, di-n-butyltin dineodecanoate, di-n-butyltin diacetylacetonate, di-n-butyltin maleate, di-n-octyltin diacetate, di-n-octyltin dilaurate, di-noctyltin oxide, di-noctyltin maleate di-n-octyltin, di-n-octyltin di(2-ethyl)hexanoate, di-n-octyltin neodecanoate, di-n-octyltin isodecanoate,their partial hydrolysis products of organotin compounds, their partial hydrolysis products of titanium compounds, and the reaction products of these organotin compounds, titanium compounds, partial hydrolysis products of organotin compounds or titanium compounds with tetraethoxysilane, methyltriethoxysilane, methyltrimethoxysilane, propyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 2-aminoethyl-3-aminopropyltrimethoxysilane and 2-aminoethyl-3-aminopropyltrimethoxysilane.

5. Moisture-curable silylated polymer composition according to any of the preceding claims, CHARACTERIZED in that the light stabilizer (b)(i) is chosen from poly(oxy-1,2-ethanedi-yl), α-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl)-ω-hydroxy; poly(oxy-1,2ethanedi-yl), a-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropylω-(3-(3-(2H-benzotriazol-2-yl-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropoxy); α-3-(3(2H-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-hydroxypoly(oxyethylene); α-3(3-(2H-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-3-(3-(2H-benzotriazol2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyloxypoly(oxyethylene); 2-(2'-hydroxy-5'-methylphenyl)benzotriazole; 2-(3',5'-di-tert-butyl-2'-hydroxyphenyl)-benzotriazole; 2-(5'-tert-butyl-2'hydroxyphenyl)-benzotriazole; 2-(2'-hydroxy-5'-(1,1,3,3-tetramethylbutyl)-phenyl)-benzotriazole;2 Petition 870240080757, de 20 / 09 / 2024, p. 94 / 115 9 / 13 (3',5'-di-tert-butyl-2'-hydroxyphenyl)-5-chlorobenzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'methylphenyl)-5-chlorobenzotriazole; 2-(3'-sec-butyl-5'-tert-butyl-2'-hydroxyphenyl)benzotriazole; 2-(2'-hydroxy-4'-octyloxyphenyl)-benzotriazole; 2-(3',5'-di-tert-amyl-2'-hydroxyphenyl)benzotriazole; 2-(3',5'-bis(α,α-dimethylbenzyl)-2'-hydroxyphenyl)benzotriazole; 2-(3'-tert-butyl2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)-5-chlorobenzotriazole; 2-(3'-tert-butyl-5'-[2-(2-ethylhexyloxy)carbonylethyl]-2'-hydroxyphenyl)-5-chlorobenzotriazole; 2-(3'-tert-butyl-2'-hydroxy5'-(2-methoxycarbonylethyl)phenyl)-5-chlorobenzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl)benzotriazole; 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)benzotriazole; 2-(3'-tert-butyl-5'-[2-(2-ethylhexyloxy)carbonylethyl]2'-hydroxyphenylbenzotriazole; 2-(3'-dodecyl-2'-hydroxy-5'-methylphenyl)benzotriazole;2-(3'tert-butyl-2'-hydroxy-5'-(2-iso-octyloxycarbonylethyl)-phenylbenzotriazole; 2,2'-methylenebis[4-(1,1,3,3-tetramethylbutyl)-6-benzotriazol-2-ylphenol]; or combinations thereof.

6. Moisture-curable silylated polymeric composition according to any of the preceding claims, CHARACTERIZED in that the light stabilizer (b)(i) is chosen from poly(oxy-1,2-ethanedi-yl), α-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropyl)-ω-hydroxy and poly(oxy-1,2-ethanedi-yl), α-(3-(3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropylω-(3-(3-(2H-benzotriazol-2-yl-5-(1,1-dimethylethyl)-4-hydroxyphenyl)-1-oxopropoxy); or α-3(3-(2H-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-hydroxypoly(oxyethylene), α-3-(3-(2H-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyl-ω-3-(3-(2Hbenzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenyl)propionyloxypoly(oxyethylene) and poly(oxy-1,2ethanedi-yl), α-hydro-ω-hydroxy-ethane-1,2-diol, ethoxylated or mixtures thereof.

7. Moisture-curable silylated polymeric composition according to any of the preceding claims, CHARACTERIZED in that the light stabilizer (b)(i) is N-(2-ethoxyphenyl)-N'-(2-ethylphenyl)ethylenediamide (CAS: 2394966-8), N,N'-diphenylethylenediamide (CAS: 620-81-5), N-(5-(1,1-dimethylethyl)-2-ethoxyphenyl)N'-(2-ethylphenyl)ethylenediamide (CAS: 35001-52-6) and N-(2-ethoxyphenyl)-N'-(isododecylphenyl)ethylenediamide (CAS: 4 Petition 870240080757, dated 09 / 20 / 2024, page 95 / 115 10 / 13 82493-14-9), more particularly N-(2-ethoxyphenyl)-N'-(2-ethylphenyl)ethylenediamide (CAS: 23949-66-8) and N-(2-ethoxyphenyl)-N'-(4-isododecylphenyl)ethylenediamide (CAS: 82493-14-9) or mixtures thereof.

8. Moisture-curable silylated polymeric composition according to any one of the preceding claims, CHARACTERIZED in that the sterically hindered amine (b)(ii) is chosen from 3-(2,2,6,6-tetramethylpiperidin-4-yloxy)propionic acid, 4-(2,2,6,6-tetramethylpiperidin-4-yl)butyric acid, poly-[4-(2,2,6,6-tetramethylpiperidin-4-yl)butyric acid] ester, poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-di-yl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]1,6-hexanedi-yl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]], bis(2,2,6,6-tetramethyl-4-piperidyl)maleate, bis(2,2,6,6-tetraethyl-4-piperidyl)maleate, bis(2,2,6,6-tetramethyl-4-piperidyl)maleate, bis(2,2,6,6-tetrahexyl-4-piperidyl)sebaceate, bis(1,2,2,6,6-pentamethyl-4-piperidinyl)-2-butyl-2-(4-hydroxy-3,5-di-tert-butylbenzyl)propanedioate, poly-[7-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-4-oxo-heptanoic acid] ester, poly-[acid] 6-(4-hydroxy-2,2,6,6-tetraethyl-piperidin-1-yl)-hexanoic acid]poly-[7-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-4-oxoheptanoic acid] ester, 1tert-butyl-2,2,6,6-tetramethyl-piperidin-4-yl acid ester 7-(4-hydroxy-2,2,6,6-tetramethylpiperidin-1-yl)-4-oxoheptanoic acid, 7-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-4oxoheptanoic acid, 8-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-5-oxo-octanoic acid, 6-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-hexanoic acid, 4-(4-hydroxy-2,2,6,6-tetramethyl-piperidin-1-yl)-benzoic acid, a polymer resulting from the reaction of dimethylbutanedioate with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol or mixtures thereof.

9. Moisture-curable silylated polymer composition according to any of the preceding claims, CHARACTERIZED in that the silicon compound containing a conjugated C=C group (b)(iii) is chosen from phenyltrimethoxysilane, phenylmethyldimethoxysilane, phenyltriethoxysilane, Petition 870240080757, 20 / 09 / 2024, p. 96 / 115 11 / 13 phenylmethyldiethoxysilane, diphenylmethylmethoxysilane, diphenylmethylethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-methacryloxypropyltriethoxysilane or 3-methacryloxypropylmethyldimethoxysilane.

10. Moisture-curable silylated polymer composition according to any of the preceding claims, CHARACTERIZED in that the silicon compound containing a conjugated C=C group (b)(iii) is phenyltrimethoxysilane.

11. Moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that the silicon compound containing a conjugated C=C group (b)(iii) is 3-methacryloxypropyltrimethoxysilane.

12. Moisture-curable silylated polymer composition according to any of the preceding claims, CHARACTERIZED in that A is -O-, R1 is methyl, R2 is methyl, R3 is propylene, R4 is hydrogen, methyl or ethyl, R5 is a bivalent or polyvalent group having the general formula (II): -R6O (R7O)d(R8O)c-2[C(=O)NH-R0-NHC(=O)O(R7O)d]mR6- (II) where each R6 is independently ethylene, 2-methylethylene or 1-methylethylene, R0 is hexylene or H3C CH3 , each R7 is independently ethylene, 2-methylethylene or 1-methylethylene, a is 0, b is 1, c is 2, d is from 20 to 400, and is from 0 to 100 in is 0 or 1.

13. Moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that the light stabilizer (b)(i) is present in an amount of about 0.5 to about 3 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a).

14. Moisture-curable silylated polymer composition, according to Petition 870240080757, dated 09 / 20 / 2024, p. 97 / 115 12 / 13 any of the preceding claims, CHARACTERIZED in that the sterically hindered amine (b)(ii) is present in an amount of about 0.2 to about 1.5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a).

15. Moisture-curable silylated polymer composition according to any of the preceding claims, CHARACTERIZED in that the silicon compound containing a conjugated C=C group (b)(iii) is present in an amount of about 1.0 to about 5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a).

16. Moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that the adhesion promoter (c) is present in an amount of about 0.5 to about 5 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a).

17. Moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that the curing catalyst (d) is present in an amount of about 0.1 to about 3 parts by weight per 100 parts by weight of the alkoxysyl-containing polymer (a).

18. Moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that said polymer composition after curing has a non-yellowing percentage value of -30% at 5% of a UV exposure period under ISO 4892-2:2013 Annex B, Method B, cycle B7 of 7 days.

19. A moisture-curable silylated polymer composition, according to any of the preceding claims, CHARACTERIZED in that said composition is curable.

20. Sealant CHARACTERIZED by the fact that it comprises a moisture-curable silylated polymer composition, as defined in any of the preceding claims. Petition 870240080757, dated 09 / 20 / 2024, pp. 98 / 115 13 / 13