Composition comprising silicone

Abstract

The present application relates to a composition comprising a silicone. The composition comprises a first component comprising a silane-modified silicone resin, a second component comprising a silane-modified polyether, and a filler having a multi-model particle size distribution. The first component may be greater than 30% by weight of the composition.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a composition including silicone, and in particular to a curable composition including silicone. BACKGROUND

[0002] Sealants, such as room temperature vulcanizing (RTV) silicones, are widely used in construction, transportation, electronics, and the like applications. RTV silicones can age over time before use, which can adversely affect the vulcanization rate and strength of the sealant. The industry continues to seek improved sealant compositions. SUMMARY

[0003] The present invention relates to a composition comprising: a first component comprising a silane-modified silicone resin, wherein the first component has a first content greater than 30 wt% of the composition; a second component comprising a silane-modified polyether; and a filler having a multimodal particle size distribution. BRIEF DESCRIPTION OF DRAWINGS

[0004] The embodiments are illustrated by way of example and not limitation in the figures of the drawing.

[0005] Figure 1 includes a flow chart showing a method of forming a sealant according to embodiments described herein.

[0006] Figure 2 includes a histogram of the maximum value (dG’ / dt) over aging time for different samples.

[0007] Figure 3 includes a histogram of the storage modulus over aging time for different samples.

[0008] Figure 4 includes a histogram of the viscosity over aging time for different samples.

[0009] Those of ordinary skill in the art recognize the elements in the drawings are shown for the purpose of simplicity and clarity and are not necessarily drawn to scale. DETAILED DESCRIPTION

[0010] The following discussion will focus on specific implementations and embodiments of the present teachings. The provision of a detailed description of implementations is not intended to limit the scope or applicability of the various teachings in any way. Rather, the following discussion is intended to describe certain implementations in enough detail to enable others skilled in the art to understand and appreciate them.

[0011] The terms “comprise,” “comprising,” “include,” “including,” “have,” “having,” “contain,” “containing,” “characterized by,” or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, product, or apparatus that comprises a list of features is not necessarily limited only to those features but can include other features not expressly listed or inherent to such process, product, or apparatus. Further, unless expressly stated to the contrary, “or” refers to an inclusive or and not to an exclusive or. For example, a condition A or B is satisfied by any one of the following: A is true (or present) and B is false (or not present), A is false (or not present) and B is true (or present), and both A and B are true (or present).

[0012] Also, use of “a” or “an” is employed to describe elements and components described herein. This is done merely for convenience and to give a general sense of the scope of the application. This description should be read to include one, at least one, or the singular as also including the plural, or vice versa, unless otherwise indicated. For example, when a single item is described, more than one item can be used in place of a single item. Similarly, where more than one item is described, a single item can be substituted in place of the more than one item.

[0013] Embodiments described herein generally relate to multi-component compositions including silicone resins. The compositions can be curable and used in sealants, adhesives, and the like. The compositions can have improved properties, such as complex viscosity, storage modulus, cure rate, or any combination thereof. In particular, the compositions can have improved shelf life.

[0014] In one embodiment, the composition can include a first component including a silane-modified silicone resin. In exemplary implementations, the silane-modified silicone resin can constitute the base polymer of the composition. In particular embodiments, the silane-modified silicone resin can have a particular number average molecular weight, which can be beneficial for improved properties and / or performance of the composition. In one example, the silane-modified silicone resin can include a number average molecular weight of up to 60,000 g / mol, such as up to 55,000 g / mol, up to 50,000 g / mol, up to 45,000 g / mol, up to 40,000 g / mol, up to 35,000 g / mol, up to 30,000 g / mol, or up to 25,000 g / mol. In another example, the number average molecular weight of the silane-modified silicone resin can be at least 15,000 g / mol, at least 20,000 g / mol, at least 25,000 g / mol, at least 30,000 g / mol, at least 35,000 g / mol, at least 40,000 g / mol, or at least 45,000 g / mol. Further, the silane-modified silicone resin can include a number average molecular weight within a range including any of the minimum and maximum values mentioned herein. For example, the number average molecular weight of the silane-modified silicone resin can be within a range of 15,000 g / mol to 60,000 g / mol, or within a range of 25,000 g / mol to 450,00 g / mol. The number average molecular weight can be detected by using conventional gel permeation chromatography (GPC). A Shimadzu Prominence LC-20AD system can be connected to a RID-20A refractive index detector for detection. Toluene can be used as the mobile phase. The flow rate can be set to 1 ml / min, and the oven temperature can be set to 40 °C. A calibration curve can be generated from 10 different polystyrene reference materials having known number average molecular weights.

[0015] In one embodiment, the silane-modified silicone resin can include repeating units of the formula [(Si(CH3)20]. In further embodiments, the silane-modified silicone resin can include a particular number of repeating units of [(Si(CH3)20], which can be beneficial for improved properties and / or performance of the composition. In one example, the number of repeating units can be at least 5, at least 10, at least 25, at least 50, at least 100, at least 300, or at least 500. In another example, the number of repeating units can be up to 5000, such as up to 4000, up to 3000, up to 2000, up to 1000, up to 500, or up to 200. Further, the number of repeating units of [(Si(CH3)20] can be within a range including any of the minimum and maximum values mentioned herein.

[0016] In another embodiment, the silane-modified silicone resin can include a terminal alkoxy group. For example, the silane-modified silicone resin can include a terminal alkoxy silanol group that is directly bonded to an oxygen atom that can be directly bonded to a silicon atom. In one embodiment, the terminal alkoxy group can consist of a methoxy group. In a particular example, the terminal alkoxy group can consist of a methoxy group. In further embodiments, the silane-modified silicone resin can include a terminal alkoxy silanol group, such as a terminal methoxy silanol group. In a particular example, the terminal alkoxy silanol group can include a trimethoxy silanol group. In further embodiments, the first component can include an alkoxy-terminated polydimethylsiloxane. In a particular example, the first component can include a trimethoxy-terminated polydimethylsiloxane. In a more particular example, the trimethoxy-terminated polydimethylsiloxane can include a direct bond between a terminal trimethoxysiloxane group and a repeating unit of [(Si(CH3)20]. In another particular embodiment, the silane-modified silicone resin can consist of a trimethoxy-terminated polydimethylsiloxane.

[0017] In another embodiment, the composition can include a particular first content of the first component that can facilitate improved properties and / or performance of the composition. For example, the first component can have a first content of greater than 30 weight percent of the total weight of the composition, such as at least 32 weight percent, at least 34 weight percent, at least 35 weight percent, at least 37 weight percent, at least 38 weight percent, at least 40 weight percent, at least 42 weight percent, or at least 44 weight percent of the total weight of the composition. In another example, the first content can be at most 56 weight percent of the total weight of the composition, such as at most 54 weight percent, at most 53 weight percent, at most 51 weight percent, at most 49 weight percent, at most 46 weight percent, at most 45 weight percent, or at most 43 weight percent of the total weight of the composition. Further, the first content of the first component can be within a range including any of the minimum percentages and maximum percentages mentioned herein. In further embodiments, the silane-modified silicone resin can be any of the first contents mentioned herein. In further embodiments, the content of the first component can not be lower or higher than the content of any other component in the composition.

[0018] In one embodiment, the composition can include a second component including a silane-modified prepolymer, such as a silane-modified polyether. In another embodiment, the second component can act as a crosslinker. In further embodiments, the second component can include a silane-modified polyether having a particular number average molecular weight, which can facilitate improved properties and / or performance of the composition. In one example, the silane-modified polyether can have a number average molecular weight of at least 4000, such as at least 5000, at least 6500, at least 7200, at least 8000, at least 9000, at least 10000, at least 11200, at least 12500, at least 13500, at least 14800, at least 15600, at least 16100, or at least 16500. In another example, the silane-modified polyether can have a number average molecular weight of at most 25000, such as at most 23600, at most 21700, at most 21000, at most 19800, at most 18600, at most 17500, at most 16900, or at most 16300. Further, the silane-modified polyether can have a number average molecular weight within a range including any of the minimum and maximum values mentioned herein. For example, the silane-modified polyether can have a number average molecular weight within a range of 4000 to 25000, 6500 to 19800, or 15600 to 17500.

[0019] In one embodiment, the silane-modified polyether can have a particular viscosity, which can facilitate improved properties and / or performance of the composition. In one example, the silane-modified polyether can have a viscosity of at least 0.2 Pa*s, at least 0.4 Pa*s, or at least 0.6 Pa*s. In another example, the viscosity of the silane-modified polyether can be at most 1 Pa*s, at most 0.8 Pa*s, or at most 0.7 Pa*s. Further, the viscosity of the silane-modified polyether can be within a range including any of the minimum and maximum values mentioned herein.

[0020] In an embodiment, the second component can be at a particular second content, which can be beneficial for improved properties and / or performance of the composition. In one example, the second content can be less than 10 weight percent of the total weight of the composition, such as at most 9 weight percent, at most 8 weight percent, at most 7 weight percent, at most 6 weight percent, or at most 5 weight percent of the total weight of the composition. In another example, the second component can be at a second content of at least 0.5 weight percent of the total weight of the composition, such as at least 0.8 weight percent, at least 1.2 weight percent, at least 1.5 weight percent, at least 1.7 weight percent, at least 1.9 weight percent, at least 2.0 weight percent, at least 2.2 weight percent, at least 2.53 weight percent, or at least 2.5 weight percent of the total weight of the composition. Further, the second component can be at a second content within a range including any of the minimum percentages and maximum percentages mentioned herein. For example, the second content can be within a range of 0.5 weight percent to 10 weight percent or within a range of 1 weight percent to 8 weight percent. In a particular example, the second component can have a second content within a range including at least 1 weight percent and at most 5 weight percent of the composition. In particular embodiments, the silane-modified polyether can be at any of the second contents mentioned herein.

[0021] In an embodiment, the silane-modified polyether can include an alpha-silane terminated polyether. In one example, the silane-modified polyether can include terminal dimethoxysilanol groups. In a particular example, the silane-modified polyether can include a silyl-methyl carbamate terminated polyether. In particular embodiments, the silane-modified polyether can include an alpha-silane terminated prepolymer, which can have a reactive alkoxy silyl group connected to an adjacent carbamate unit with a methylene spacer. In more particular embodiments, the silane-modified polyether can include a dimethoxy(methyl)silyl methyl carbamate terminated polypropylene glycol.

[0022] In an embodiment, the composition can include a filler. In particular embodiments, the filler can include a particular multimodal particle size distribution, which can be beneficial for improved formation and / or properties and performance of the composition. In another embodiment, the filler can include large particles and fine particles. In one example, the large particles can have a particle size of 0.5 microns to 10 microns. In another example, the small particles can have a particle size of 0.01 microns to 0.1 microns.

[0023] In another embodiment, the composition may include a first filler having a specific first average particle size, which may contribute to improved properties and / or performance of the composition. In one example, the first filler may have a first average particle size of at least 0.8 micrometers, at least 1.1 micrometers, at least 1.5 micrometers, at least 1.8 micrometers, at least 2.2 micrometers, at least 2.5 micrometers, at least 2.7 micrometers, at least 3.0 micrometers, or at least 3.2 micrometers. Alternatively and / or additionally, the first average particle size may be at most 6.3 micrometers, at most 6.0 micrometers, at most 5.7 micrometers, at most 5.4 micrometers, at most 5.1 micrometers, at most 4.8 micrometers, at most 4.4 micrometers, at most 4.1 micrometers, at most 3.9 micrometers, at most 3.6 micrometers, or at most 3.3 micrometers. Furthermore, the composition may include a first filler having a first average particle size within a range including any of the minimum and maximum values ​​mentioned herein.

[0024] In one embodiment, the composition may include a second filler material having a second average particle size, which may differ from a first average particle size. In another embodiment, the second filler material may have a specific second average particle size that may benefit the improved properties and / or performance of the composition. In one example, the second average particle size of the second filler material may be at least 33 nm, at least 36 nm, at least 39 nm, at least 44 nm, at least 48 nm, at least 53 nm, at least 57 nm, at least 60 nm, at least 63 nm, at least 66 nm, at least 70 nm, at least 73 nm, or at least 76 nm. In another example, the second average particle size may be at most 140 nm, at most 130 nm, at least 110 nm, at most 95 nm, at most 91 nm, at most 88 nm, at most 86 nm, at most 82 nm, at most 80 nm, or at most 77 nm. Furthermore, the second average particle size of the second filler may be within a range including any of the minimum and maximum values ​​mentioned herein. Particle size can be measured using a Horiba LA950 laser particle analyzer or another equivalent instrument. Filler or composition samples can be prepared by dispersing the powder in a suitable fluid (e.g., isopropanol) and running it in a 40W ultrasonic bath for 1 minute to break up any agglomerates. The prepared sample can then be added dropwise to a reservoir to measure the particle size distribution.

[0025] In another embodiment, the composition may include a specific particle size ratio P of a first filler material to a second filler material. S1 / P S2 It can contribute to improved properties and / or performance of the composition, wherein P S1 It is the first average particle size of the first filler material, and P S2 It is the second average particle size of the second filler material. In one example, the ratio PS1 / P S2 It can be at least 5:1, such as at least 10:1, at least 15:1, at least 20:1, at least 25:1, at least 35:1, at least 40:1, at least 45:1, at least 55:1, at least 60:1, at least 65:1, at least 70:1, or at least 75:1. In another example, the ratio P S1 / P S2 It can be up to 150:1, up to 120:1, up to 100:1, up to 95:1, up to 90:1, up to 85:1, up to 80:1, up to 75:1, up to 70:1, up to 65:1, up to 60:1, up to 55:1, or up to 50:1. Furthermore, the ratio P... S1 / P S2 It can be within the range that includes any minimum and maximum values ​​mentioned in this article.

[0026] In one embodiment, the composition may include a specific ratio of C F1 / C F2 This can contribute to improved properties and / or performance of the composition, wherein C F1 It is the first content of the first filler, and C F2 It is the second content of the second filler. In one example, the ratio C F1 / C F2 It can be at least 0.4:1, at least 0.5:1, at least 0.6:1, at least 0.7:1, at least 0.8:1, at least 0.9:1, at least 1:1, or at least 1.1:1. In another example, the ratio C F1 / C F2 It can be up to 2.9:1, up to 2.6:1, up to 2.4:1, up to 2.1:1, up to 1.9:1, up to 1.5:1, up to 1.3:1, or up to 1.1:1. Furthermore, ratio C... F1 / C F2 This can be within a range that includes any of the minimum and maximum values ​​mentioned in this article. For example, the ratio C F1 / C F2 It can be in the range of 0.4:1 to 2.9:1, in the range of 0.5:1 to 1.7:1, or in the range of 0.7:1 to 1.3:1.

[0027] In one embodiment, the composition may include a specific total amount of filler that may contribute to improved properties and / or performance of the composition. In one example, the total amount of filler may be at least 30% by weight of the total weight of the composition, such as at least 35% by weight, at least 37% by weight, at least 40% by weight, at least 42% by weight, at least 45% by weight, or at least 48% by weight of the total weight of the composition. In another example, the total amount of filler may be up to 68% by weight of the total weight of the composition, such as up to 64% by weight, up to 61% by weight, up to 57% by weight, up to 54% by weight, up to 51% by weight, or up to 49% by weight of the total weight of the composition. Furthermore, the total amount of filler may be within the range including any of the minimum and maximum percentages mentioned herein.

[0028] In another embodiment, the composition may include a specific first filler content, which may contribute to improved properties and / or performance of the composition. In one example, the first filler content may be at least 14% by weight of the total weight of the composition, such as at least 16%, at least 19%, at least 22%, at least 24%, at least 27%, or at least 30% by weight of the total weight of the composition. In another example, the first filler content may be up to 36% by weight of the total weight of the composition, such as up to 34%, up to 31%, up to 29%, up to 27%, or up to 25% by weight of the total weight of the composition. Furthermore, the first filler content may be within a range including any of the minimum and maximum percentages mentioned herein. For example, the first filler content may be in the range of 14% to 36% by weight of the total weight of the composition, such as in the range of 20% to 29% by weight.

[0029] In another embodiment, the composition may include a specific amount of a second filler material, which may contribute to improved properties and / or performance of the composition. In one example, the second filler content may be at least 14% by weight of the total weight of the composition, such as at least 16%, at least 19%, at least 22%, at least 24%, at least 27%, or at least 30% by weight of the total weight of the composition. In another example, the second filler content may be up to 36% by weight of the total weight of the composition, such as up to 34%, up to 31%, up to 29%, up to 27%, or up to 25% by weight of the total weight of the composition. Furthermore, the second filler content may be within a range including any of the minimum and maximum percentages mentioned herein. For example, the second filler content may be in the range of 14% to 36% by weight of the total weight of the composition, such as in the range of 20% to 29% by weight.

[0030] In another embodiment, the filler may include inorganic materials, organic materials, natural materials, synthetic materials, or any combination thereof. Exemplary filler materials may include calcium carbonate, silica, magnesium carbonate, carbon black, alumina, aluminum trihydrate, zinc borate, titanium dioxide, iron oxide, or any combination thereof. Specific examples of filler materials may include calcium carbonate, silica, carbon black, alumina, or any combination thereof. In further embodiments, the first filler and the second filler may include the same material or different materials. In a particular example, the first filler and the second filler may include the same material.

[0031] In another embodiment, the composition may include one or more additional components, including, for example, coupling agents, catalysts, rheology modifiers, or any combination thereof. In a particular embodiment, the composition may include a rheology modifier. Examples of rheology modifiers may include plasticizers, diluents, or any combination thereof. In a particular example, the rheology modifier may include silicone oils, mineral oils, etc., or any combination thereof. Exemplary silicone oils may include silane-modified silicone resins, such as alkyl-terminated silicone resins. In another example, the rheology modifier may include methyl-terminated silicone resins, dimethyl-terminated silicone resins, or any combination thereof. In a particular example, the rheology modifier may include methyl-terminated polydimethylsiloxanes, dimethyl-terminated polydimethylsiloxanes, or any combination thereof.

[0032] In another embodiment, the composition may include a specific amount of a rheology modifier that may benefit the improved properties and / or performance of the composition. In one example, the amount of the rheology modifier may be at least 1.3% by weight of the total weight of the composition, such as at least 1.5% by weight, at least 1.8% by weight, at least 2.2% by weight, at least 2.5% by weight, at least 2.8% by weight, at least 3.2% by weight, at least 3.5% by weight, at least 3.9% by weight, at least 4.2% by weight, at least 4.4% by weight, at least 4.5% by weight, at least 4.8% by weight, or at least 5.0% by weight. In another example, the amount of the rheology modifier may be up to 9.5% by weight of the total weight of the composition, such as up to 9.2% by weight, up to 8.7% by weight, up to 8.5% by weight, up to 8.2% by weight, up to 7.9% by weight, up to 7.6% by weight, or up to 7.2% by weight. Furthermore, the content of the rheology modifier can be within the range of any minimum and maximum percentage mentioned herein.

[0033] In other embodiments, the composition may include a catalyst. In one example, the catalyst may be tin-free. In another example, the catalyst may include a titanium-containing compound, including titanium diisopropoxybis(ethyl acetoacetate), tetrabutyl titanate, titanium isopropoxide (IV), or any combination thereof. In other embodiments, the composition may include a specific amount of catalyst that may contribute to improved properties and / or performance of the composition. In one example, the catalyst content may be at least 0.1 wt% of the total weight of the composition, such as at least 0.3 wt%, at least 0.5 wt%, at least 0.7 wt%, at least 0.9 wt%, or at least 1.1 wt% of the total weight of the composition. In another example, the catalyst content may be up to 2.5 wt% of the total weight of the composition, such as up to 2.2 wt%, up to 2.0 wt%, up to 1.8 wt%, up to 1.6 wt%, up to 1.4 wt%, or up to 1.2 wt% of the total weight of the composition. Furthermore, the catalyst content may be within the range including any minimum and maximum percentages mentioned herein.

[0034] In another embodiment, the composition may include a silane coupling agent, such as (3-aminopropyl)triethoxysilane, (3-glycidoxypropyl)trimethoxy, vinyltrimethoxysilane, diethoxy(3-glycidoxypropyl)-methylsilane, [8-(glycidoxy)-n-octyl]-trimethoxysilane, methacryloxypropyltrimethoxysilane, tetraethoxysilane, 3-(2-aminoethylamino)-propyltriethoxysilane, bis[3-(trimethoxysilyl)-propyl]amine, trimethoxy[3-(phenylamino)-propyl]silane, [3-(6-aminohexylamino)-propyl]trimethoxysilane, octyltrimethoxysilane, 3-glycidoxypropyl(dimethoxy)-methylsilane, or any combination thereof. In another embodiment, the silane coupling agent may be present in an amount up to 0.5% by weight of the total composition.

[0035] It is worth noting that, compared to conventional products, the compositions of the embodiments described herein may have improved properties, such as one or more properties related to the rheological properties of the composition over time, such as less susceptibility to aging, and / or improved performance, including service life. In one embodiment, the composition may exhibit improved changes in one or more properties upon aging. Such properties may include complex viscosity, storage modulus, reactivity, vulcanization rate, or any combination thereof. For example, the composition may have a decreasing change in storage modulus and / or complex viscosity over time. In another example, the composition may have decreased reactivity and vulcanization rate over time. In some cases, the composition may exhibit an increased vulcanization rate upon aging.

[0036] In another specific embodiment, the composition may have a specific initial complex viscosity, final storage modulus, maximum value of the derivative of the storage modulus with respect to time, or any combination thereof, which may be beneficial to the improved performance of the composition. As disclosed herein, the initial complex viscosity, storage modulus, and vulcanization rate can be measured using the same test, an oscillating time scan. A DHR-1 rheometer can be used to perform time scans on the composition sample to evaluate its vulcanization properties with aging. The geometry of the setup can be a parallel plate with a 25 mm top plate and a Peltier plate at the bottom, maintained at a temperature of 20°C. Strain and frequency can be test constants at 0.5% and 1 Hz, respectively. The test time can be 12 hours.

[0037] As used herein, the term "initial" refers to the first point in the rheological measurement test process, typically taken approximately 20 seconds after the start of the test; the term "final" refers to the last value taken during the rheological measurement, typically 12 hours after the start of the test. Performance changes can be expressed using the formula δp = [(P A -P O ) / P O The value of P was determined by multiplying it by 100%. A P can indicate the properties of the composition after aging. O It can represent the properties of the composition before aging, and δp can represent the changes during that time.

[0038] In an exemplary embodiment, aging of the composition can be performed by exposing the composition to aging conditions. Aging conditions can be generated using an environmental chamber with a defined temperature and / or relative humidity (RH). In one example, the environmental chamber may be set at 20% RH, 50% RH, or 70% RH. In another example, aging conditions may include temperatures from 20°C to 25°C or elevated temperatures, such as at least 40°C, at least 50°C, or at least 70°C. In yet another example, exposure to aging conditions may be for at least 3 days, at least 7 days, at least 10 days, at least 14 days, or at least 21 days.

[0039] In another embodiment, the composition may include a specific initial complex viscosity prior to aging, which may benefit the improved properties and / or performance of the composition. In one example, the initial complex viscosity before aging may be up to 3000 Pa·s, such as up to 2700 Pa·s, up to 2500 Pa·s, up to 2100 Pa·s, up to 1800 Pa·s, or up to 1500 Pa·s. In another example, the final complex viscosity before aging may be at least 700 Pa·s, at least 900 Pa·s, at least 1100 Pa·s, at least 1300 Pa·s, at least 1500 Pa·s, at least 1700 Pa·s, at least 2000 Pa·s, or at least 2200 Pa·s. Furthermore, the initial complex viscosity before aging may be within a range including any of the minimum and maximum values ​​mentioned herein. As disclosed herein, the initial complex viscosity of the composition before aging may also be referred to as the original initial complex viscosity.

[0040] In another embodiment, the composition may include a specific initial viscosity after aging, which may be beneficial for improved properties and / or performance of the composition. The initial viscosity of the composition after aging may be determined after exposing the composition to aging conditions for a period of time. In one example, after exposure to 70% RH for 7 days, the composition may have an initial complex viscosity of at least 700 Pa·s, such as at least 900 Pa·s, at least 1100 Pa·s, at least 1300 Pa·s, at least 1500 Pa·s, at least 1700 Pa·s, at least 2000 Pa·s, or at least 2200 Pa·s after exposure to 70% RH at 70°C for 7 days. In another example, after 14 days of exposure to 70% RH at 70°C, the initial complex viscosity can be up to 2700 Pa·s, such as up to 2500 Pa·s, up to 2300 Pa·s, up to 2100 Pa·s, up to 1800 Pa·s, or up to 1500 Pa·s after 7 days of exposure to 70% RH at 70°C. Furthermore, the initial complex viscosity after 7 days of exposure to 70% RH at 70°C can be within the range including any of the minimum and maximum values ​​mentioned herein.

[0041] In another example, after exposure to 70% RH at 70°C for 14 days, the composition may have an initial complex viscosity of at least 500 Pa·s, such as at least 700 Pa·s, at least 1000 Pa·s, at least 1200 Pa·s, at least 1400 Pa·s, at least 1600 Pa·s, at least 1800 Pa·s, at least 2000 Pa·s, or at least 2200 Pa·s after exposure to 70% RH at 20°C to 25°C for 14 days. In another example, after exposure to 70% RH at 70°C for 14 days, the initial complex viscosity can be up to 3200 Pa·s, such as up to 3100 Pa·s, up to 2800 Pa·s, up to 2600 Pa·s, up to 2500 Pa·s, up to 2300 Pa·s, up to 2100 Pa·s, up to 1800 Pa·s, or up to 1500 Pa·s. Furthermore, after exposure to 70% RH at 70°C for 14 days, the initial complex viscosity can be within a range including any of the minimum and maximum values ​​mentioned herein.

[0042] In one embodiment, the composition may include a specific complex viscosity change, which may benefit the improved performance of the composition. In one embodiment, the complex viscosity change after exposure to 70% RH at 70°C for 7 days may be within ±15% of the original initial complex viscosity, such as within ±12%, ±10%, ±8%, ±6%, ±4%, or ±2% of the original initial complex viscosity of the composition. In another embodiment, after exposure to 70% RH at 70°C for 14 days, the change in complex viscosity may be within ±25% of the original initial complex viscosity, such as within ±23%, ±21%, ±19%, ±17%, ±15%, ±13%, ±11%, ±9%, ±7%, or ±5% of the original initial complex viscosity of the composition after exposure to 70% RH at 70°C for 14 days.

[0043] In another embodiment, the composition may include a specific final storage modulus, which may contribute to improved properties and / or performance of the composition. In this disclosure, the composition may be cured at 20°C to 25°C for 12 hours prior to determining the final storage modulus. In one embodiment, the composition may have a specific initial final storage modulus. As used herein, “initial final storage modulus” is intended to refer to the final storage modulus of the composition before aging. In one example, the initial final storage modulus may be at least 0.08 MPa, such as at least 0.09 MPa, at least 0.10 MPa, at least 0.11 MPa, or at least 0.12 MPa. In another example, the initial final storage modulus may be at most 0.18 MPa, such as at most 0.17 MPa, at most 0.16 MPa, at most 0.15 MPa, or at most 0.14 MPa. Furthermore, the initial final storage modulus may be within a range including any of the minimum and maximum values ​​mentioned herein.

[0044] In one embodiment, the composition may have a specific final storage modulus. The final storage modulus can be determined after the cured composition has been exposed to aging conditions. In one example, the final storage modulus after exposure to 70% RH at 70°C for 7 days may be at least 0.07 MPa, such as at least 0.08 MPa, at least 0.09 MPa, at least 0.10 MPa, or at least 0.11 MPa. In another example, the final storage modulus after exposure to 70% RH at 70°C for 7 days may be at most 0.15 MPa, such as at most 0.14 MPa, at most 0.13 MPa, at most 0.12 MPa, or at most 0.11 MPa. Furthermore, after exposure to 70% RH at 70°C for 7 days, the initial storage modulus may be within the range including any of the minimum and maximum values ​​mentioned herein.

[0045] In one embodiment, after exposure to 70% RH at 70°C for 14 days, the composition may have a final storage modulus of at least 0.03 MPa, such as at least 0.05 MPa, at least 0.07 MPa, at least 0.08 MPa, or at least 0.09 MPa. Alternatively or additionally, the final storage modulus after exposure to 70% RH at 70°C for 14 days may be up to 0.13 MPa, such as up to 0.12 MPa, up to 0.11 MPa, up to 0.09 MPa, up to 0.08 MPa, or up to 0.06 MPa. Furthermore, after exposure to 70% RH at 70°C for 14 days, the final storage modulus may be within the range including any of the minimum and maximum values ​​mentioned herein.

[0046] In one embodiment, after exposure to 70% RH at 70°C for 7 days, the change in energy storage modulus may be within ±26% of the original final energy storage modulus, such as within ±23% of the original final energy storage modulus of the composition, within ±20% of the original final energy storage modulus, within ±18% of the original final energy storage modulus, within ±16% of the original final energy storage modulus, within ±14% of the original final energy storage modulus, within ±13% of the original final energy storage modulus, within ±11% of the original final energy storage modulus, within ±9% of the original final energy storage modulus, within ±7% of the original final energy storage modulus, within ±27% of the original final energy storage modulus, within ±5% of the original final energy storage modulus, or within ±3% of the original final energy storage modulus. In another embodiment, after exposure to 70% RH at 70°C for 14 days, the change in energy storage modulus may be within ±56% of the original final energy storage modulus, such as within ±53% of the original final energy storage modulus of the composition, within ±50% of the original final energy storage modulus, within ±48% of the original final energy storage modulus, within ±46% of the original final energy storage modulus, within ±44% of the original final energy storage modulus, within ±42% of the original final energy storage modulus, within ±38% of the original final energy storage modulus, within ±35% of the original final energy storage modulus, within ±31% of the original final energy storage modulus, within ±27% of the original final energy storage modulus, within ±23% of the original final energy storage modulus, within ±18% of the original final energy storage modulus, or within ±15% of the original final energy storage modulus.

[0047] In another embodiment, the composition may include a specific vulcanization rate, which may be beneficial to the improved properties and / or performance of the composition. In this disclosure, the vulcanization rate may be the maximum value of (dG' / dt), where dG' may represent the derivative of the storage modulus and dt may represent the derivative of time. The vulcanization rate can be determined as follows: A time scan of the composition sample can be performed at a temperature of 20°C to 25°C using a DHR-1 rheometer and a set of parallel plates with a 25 mm top plate and a Peltier plate at the bottom. Strain and frequency can be test constants at 0.5% and 1 Hz, respectively. The test time can be approximately 12 hours.

[0048] In another embodiment, the first component may include a specific vulcanization rate, which may contribute to improved properties and / or performance of the composition. The vulcanization rate of the first component may be determined using the same test described with respect to the composition, except that the filler is not included in the sample to be tested. The test time may be approximately 12 hours.

[0049] In one embodiment, the composition may include a specific vulcanization rate, which may contribute to improved properties and / or performance of the composition. In one example, the vulcanization rate of the composition before aging (also referred to as the “initial vulcanization rate”) may be at least 1.1 × 10⁻⁶. -4 1 / s, such as at least 1.3 × 10 - 1 / s 4 At least 1.5 × 10 -4 1 / s, at least 1.8 × 10 -4 1 / s, or at least 2.0 × 10 -4 1 / s. In another example, the initial vulcanization rate can be up to 4 × 10⁻⁶. -4 1 / s, such as at most 3.7 × 10 -4 1 / s, at most 3.5 × 10 -4 1 / s, at most 3.3 × 10 -4 1 / s, at most 3.1 × 10 -4 1 / s, at most 2.8 × 10 -4 1 / s, at most 2.5 × 10 -4 1 / s, at most 2.3 × 10 -4 1 / s, or at most 2.1 × 10 -4 1 / s. Furthermore, the initial vulcanization rate can be within a range including any of the minimum and maximum values ​​mentioned herein.

[0050] In another example, the composition may exhibit a specific vulcanization rate after aging, which can be beneficial for improved properties and / or performance of the composition. In one example, after exposure to 70% RH at 70°C for 7 days, the vulcanization rate may be at least 0.7 × 10⁻⁶. -4 1 / s, such as at least 0.9 × 10 after 7 days of exposure to 70% RH at 70°C. -4 1 / s, at least 1.1 × 10 -4 1 / s, at least 1.3 × 10 -4 1 / s, at least 1.5 × 10 -4 1 / s, at least 1.8 × 10 -4 1 / s or at least 2.0 × 10 -4 1 / s, at least 2.3 × 10 -4 1 / s, at least 2.6 × 10 -4 1 / s, at least 3.0 × 10 -4 1 / s or at least 3.3 × 10 -4 1 / s. In another example, after exposure to 70% RH at 70°C for 7 days, the vulcanization rate can be up to 4.5 × 10⁻⁶. -4 For example, after exposure to 70% RH at 70°C for 7 days, the maximum is 4.3 × 10⁻⁶. -41 / s, at most 4.1 × 10 -4 1 / s, at most 3.8 × 10 -4 1 / s, at most 3.5 × 10 -4 1 / s, at most 3.3 × 10 -4 1 / s, at most 3.1 × 10 -4 1 / s, at most 2.8 × 10 -4 1 / s, at most 2.5 × 10 -4 1 / s, at most 2.3 × 10 -4 1 / s or at most 2.1 × 10 -4 1 / s. Furthermore, the vulcanization rate after exposure to 70% RH at 70°C for 7 days can be within the range of any minimum and maximum values ​​mentioned herein.

[0051] In another example, after exposure to 70% RH at 70°C for 14 days, the composition may have at least 0.5 × 10⁻⁶. -4 Vulcanization, such as exposure to 70% RH at 70°C for 14 days followed by at least 0.7 × 10⁻⁶ ppm, is required. -4 At least 0.9 × 10 -4 At least 1.1 × 10 -4 At least 1.3 × 10 -4 At least 1.5 × 10 -4 At least 1.7 × 10 -4 At least 2.0 × 10 -4 At least 2.3 × 10 -4 At least 2.5 × 10 -4 Alternatively, after exposure to 70% RH at 70°C for 14 days, the vulcanization rate can be up to 4.8 × 10⁻⁶. -4 For example, exposure to 70% RH at 70°C for 14 days results in a maximum of 4.6 × 10⁻⁶. -4 At most 4.4 × 10 -4 At most 4.2 × 10 -4 At most 3.9 × 10 -4 At most 3.7 × 10 -4 At most 3.5 × 10 -4 At most 3.3 × 10 -4 At most 3.1 × 10 -4 At most 2.8 × 10 -4 At most 2.5 × 10 -4 At most 2.3 × 10 -4 At most 2.1 × 10 -4 Or 1.7×10 -4 Furthermore, the vulcanization rate after exposure to 70% RH at 70°C for 14 days can be within the range of any of the minimum and maximum values ​​mentioned herein.

[0052] In another embodiment, the composition may include specific vulcanization rate variations that may benefit the improved performance of the composition. In one embodiment, after exposure to 70% RH at 70°C for 7 days, the composition may have a vulcanization rate variation within ±15% of the original vulcanization rate, such as within ±12%, ±10%, ±8%, ±6%, ±4%, ±2%, ±1%, ±0.5%, or ±0.2% of the original vulcanization rate after exposure to 70% RH at 70°C for 7 days. In another embodiment, after exposure to 70% RH at 70°C for 14 days, the composition may have a vulcanization rate variation within ±28% of the original vulcanization rate of the composition, such as within ±25%, ±23%, ±20%, ±18%, ±16%, ±14%, ±12%, ±10%, ±9%, ±7%, ±5%, ±3%, or ±1% of the original vulcanization rate after exposure to 70% RH at 70°C for 14 days.

[0053] In another embodiment, the vulcanization rate may increase after exposure to 70% RH at 70°C for 7 days. In one example, this increase after exposure to 70% RH at 70°C for 7 days may be up to 95% of the original vulcanization rate, such as up to 85%, 75%, 60%, 45%, or 35% of the original vulcanization rate after exposure to 70% RH at 70°C for 7 days. In another example, the increase in vulcanization rate after exposure to 70% RH at 70°C for 7 days may be at least 0.5% of the original vulcanization rate, such as at least 2%, 7%, 11%, 16%, or 20% of the original vulcanization rate after exposure to 70% RH at 70°C for 7 days. It should be understood that the increase in vulcanization rate after exposure to 70% RH at 70°C for 7 days may be within the range including any of the minimum and maximum values ​​mentioned herein. In another embodiment, the vulcanization rate may increase after the composition is exposed to 70% RH at 70°C for 14 days. In one example, after exposure to 70% RH at 70°C for 14 days, this increase may be up to 90% of the original vulcanization rate, such as up to 85%, 75%, 60%, 45%, or 35% of the original vulcanization rate after exposure to 70% RH at 70°C for 14 days. In another example, after exposure to 70% RH at 70°C for 14 days, the increase in vulcanization rate may be at least 0.5% of the original vulcanization rate, such as at least 2%, 7%, 11%, 16%, or 20% of the original vulcanization rate after exposure to 70% RH at 70°C for 14 days. It should be understood that the increase in vulcanization rate after exposure to 70% RH at 70°C for 14 days may be within the range including any of the minimum and maximum values ​​mentioned herein. Upon reading this disclosure, those skilled in the art will understand that an increase in the vulcanization rate indicates that the composition retains its reactivity upon aging. In another example, after aging, such as exposure to 70% RH at 70°C for 7 or 14 days, the vulcanization rate may remain substantially the same.

[0054] In one embodiment, the composition may exhibit a reduced vulcanization rate decrease upon aging compared to conventional products. In one example, after exposure to 70% RH at 70°C for 7 days, this reduction may be up to 35% of the original vulcanization rate, such as up to 21%, up to 17%, up to 14%, up to 11%, up to 9%, up to 7%, or up to 6% of the original vulcanization rate after exposure to 70% RH at 70°C for 7 days. In another example, after exposure to 70% RH at 70°C for 7 days, the reduction in vulcanization rate may be at least 0.3% of the original vulcanization rate, such as at least 0.6%, at least 1.1%, at least 1.5%, at least 2.1%, at least 2.4%, at least 2.7%, at least 3.1%, at least 3.4%, at least 3.7%, at least 4.1%, or at least 4.4% of the original vulcanization rate after exposure to 70% RH at 70°C for 7 days. It should be understood that after exposure to 70% RH at 70°C for 7 days, the reduction in vulcanization rate can be within the range including any of the minimum and maximum values ​​mentioned herein. In another example, after exposure to 70% RH at 70°C for 14 days, this reduction can be up to 25% of the original vulcanization rate, such as up to 21%, up to 17%, up to 13%, up to 11%, or up to 9% of the original vulcanization rate after 14 days of exposure to 70% RH at 70°C. In yet another example, after exposure to 70% RH at 70°C for 14 days, the reduction in vulcanization rate can be at least 1.5% of the original vulcanization rate, such as at least 2.3%, at least 2.7%, at least 3.1%, at least 3.6%, at least 4.2%, at least 4.7%, at least 5.3%, at least 5.9%, or at least 6.3% of the original vulcanization rate after 14 days of exposure to 70% RH at 70°C. It should be understood that after 14 days of exposure to 70% RH at 70°C, the decrease in the vulcanization rate can be within the range of any of the minimum and maximum values ​​mentioned herein. It should be understood that a decrease in vulcanization rate with aging can indicate an increase in shelf life.

[0055] In one embodiment, the composition may be a one-part composition. In another embodiment, the composition may be curable. In one example, the composition may be capable of curing at room temperature, i.e., 20°C to 25°C. In another example, the composition may be capable of curing in air. In yet another example, the composition may begin to cure upon contact with air.

[0056] For the purpose of explanation, Figure 1The diagram includes an illustration of method 100. Method 100 may include forming the composition described in the embodiments herein at box 110. In a particular example, the components of the composition may be mixed to form a single-part composition. In another example, the composition may be stored in a container, such as a capped test tube, for future use. Those skilled in the art will understand that storage of the composition can be considered as aging of the composition.

[0057] In another embodiment, method 100 may include forming a sealant from the composition at frame 120. In one example, forming the sealant may include curing the composition. In an exemplary embodiment, curing may be performed at 20°C to 25°C. In another example, curing may be performed in air. In another case, curing of the composition may begin when the composition is exposed to air or otherwise comes into contact with air. In another example, curing may take place for a period of time, such as at least 6 hours, at least 8 hours, at least 10 hours, or at least 12 hours. Alternatively or additionally, curing may take place for up to 96 hours, such as up to 90 hours, up to 70 hours, up to 60 hours, up to 48 hours, up to 30 hours, up to 24 hours, up to 18 hours, up to 14 hours, or up to 12 hours. Furthermore, curing may take place for a period of time, including any minimum and maximum values ​​mentioned herein. In another embodiment, curing may include any vulcanization rate described in the embodiments herein. In another embodiment, curing the composition may include a chemical reaction between the second component and the first component. In another embodiment, curing may include forming a silicone-based sealant. Upon reading this disclosure, those skilled in the art will understand that curing of the composition can occur after the composition has been stored for a certain period of time. In an exemplary embodiment, the composition can be extruded from a container onto a surface and cured in air at room temperature to form a sealant.

[0058] In another embodiment, the sealant may include improved properties, such as tensile strength.

[0059] Many different aspects and embodiments are possible. Some of these aspects and embodiments are described herein. After reading this specification, those skilled in the art will recognize that those aspects and embodiments are merely illustrative and do not limit the scope of the invention. Embodiments can be based on any one or more of the embodiments listed below.

[0060] Implementation Scheme 1. A composition comprising:

[0061] The first component comprises a silane-modified silicone resin, wherein...

[0062] The first component has a first content of more than 30% by weight of the composition;

[0063] The second component, comprising a silane-modified polyether; and

[0064] A filler having a multi-model particle size distribution.

[0065] Implementation Scheme 2. The composition according to Implementation Scheme 1, wherein the silane-modified silicone resin has a number average molecular weight of up to 60,000 g / mol, up to 55,000 g / mol, up to 50,000 g / mol, up to 45,000 g / mol, up to 40,000 g / mol, up to 35,000 g / mol, up to 30,000 g / mol, or up to 25,000 g / mol; and / or wherein the number average molecular weight of the silane-modified silicone resin is at least 15,000 g / mol, at least 20,000 g / mol, at least 25,000 g / mol, at least 30,000 g / mol, at least 35,000 g / mol, at least 40,000 g / mol, or at least 45,000 g / mol.

[0066] Implementation Scheme 3. The composition according to Implementation Scheme 1 or 2, wherein the silane-modified organosilicon resin comprises a terminal alkoxysilanol group.

[0067] Implementation Scheme 4. The composition according to Implementation Scheme 3, wherein the terminal alkoxysilanol group comprises a trimethoxysilanol group.

[0068] Implementation Scheme 5. The composition according to any one of Implementation Schemes 1 to 4, wherein the silane-modified organosilicon resin comprises repeating units of the formula [(Si(CH3)2O].

[0069] Implementation Scheme 6. The composition according to any one of Implementation Schemes 3 to 5, wherein the terminal alkoxysilanol group is directly bonded to an oxygen atom, and the oxygen atom is directly bonded to a silicon atom.

[0070] Implementation Scheme 7. The composition according to any one of Implementation Schemes 1 to 76, wherein the silane-modified silicone resin comprises a trimethoxy-terminated polydimethylsiloxane.

[0071] Implementation Scheme 8. The composition according to any one of Implementation Schemes 1 to 7, wherein when the first component is exposed to 70% RH at 70°C for at least 14 days, the first component has a vulcanization rate variation within ±15% of the original vulcanization rate.

[0072] Embodiment 9. The composition according to any one of Embodiments 1 to 8, wherein the first content is at least 32% by weight, at least 34% by weight, at least 35% by weight, at least 37% by weight, at least 38% by weight, at least 40% by weight, at least 42% by weight, or at least 44% by weight of the composition; and / or wherein the first content is at most 56% by weight, at most 54% by weight, at most 53% by weight, at most 51% by weight, at most 49% by weight, at most 46% by weight, at most 45% by weight, or at most 43% by weight of the composition.

[0073] Implementation Scheme 10. The composition according to any one of Implementation Schemes 1 to 9, wherein the silane-modified polyether has a number average molecular weight of at least 4000, at least 5000, at least 6500, at least 7200, at least 8000, at least 9000, at least 10000, at least 11200, at least 12500, at least 13500, at least 14800, at least 15600, at least 16100, or at least 16500; and / or the silane-modified polyether has a number average molecular weight of at most 25000, at most 23600, at most 21700, at most 21000, at most 19800, at most 18600, at most 17500, at most 16900, or at most 16300.

[0074] Implementation Scheme 11. The composition according to any one of Implementation Schemes 1 to 10, wherein the second component has a second content of less than 10% by weight, up to 9% by weight, up to 8% by weight, up to 7% by weight, up to 6% by weight, or up to 5% by weight of the composition; and / or wherein the second component has a second content of at least 0.5% by weight, at least 0.8% by weight, at least 1.2% by weight, at least 1.5% by weight, at least 1.7% by weight, at least 1.9% by weight, at least 2.0% by weight, at least 2.2% by weight, at least 2.53% by weight, or at least 2.5% by weight of the composition.

[0075] Implementation Scheme 12. The composition according to any one of Implementation Schemes 1 to 11, wherein the second component has a second content in the range of at least 1% by weight and at most 5% by weight of the composition.

[0076] Implementation Scheme 13. The composition according to any one of Implementation Schemes 1 to 12, wherein the silane-modified polyether comprises an α-silane-terminated polyether.

[0077] Implementation Scheme 14. The composition according to any one of Implementation Schemes 1 to 13, wherein the silane-modified polyether comprises a terminal dimethoxysilanol group.

[0078] Implementation Scheme 15. The composition according to any one of Implementation Schemes 1 to 14, wherein the silane-modified polyether comprises a silyl-methylcarbamate-terminated polyether.

[0079] Implementation Scheme 16. The composition according to any one of Implementation Schemes 1 to 15, wherein the silane-modified polyether comprises dimethoxy(methyl)silyl-methylcarbamate-terminated polypropylene glycol.

[0080] Implementation Scheme 17. The composition according to any one of Implementation Schemes 1 to 16, wherein the filler comprises a first filler material having a first average particle size of at least 0.8 micrometers, at least 1.1 micrometers, at least 1.5 micrometers, at least 1.8 micrometers, at least 2.2 micrometers, at least 2.5 micrometers, at least 2.7 micrometers, at least 3.0 micrometers, or at least 3.2 micrometers; and / or wherein the first average particle size is at most 6.3 micrometers, at most 6.0 micrometers, at most 5.7 micrometers, at most 5.4 micrometers, at most 5.1 micrometers, at most 4.8 micrometers, at most 4.4 micrometers, at most 4.1 micrometers, at most 3.9 micrometers, at most 3.6 micrometers, or at most 3.3 micrometers.

[0081] Implementation Scheme 18. The composition according to any one of Implementation Schemes 1 to 17, wherein the filler comprises a second filler material having a second average particle size of at least 33 nm, at least 36 nm, at least 39 nm, at least 44 nm, at least 48 nm, at least 53 nm, at least 57 nm, at least 60 nm, at least 63 nm, at least 66 nm, at least 70 nm, at least 73 nm, or at least 76 nm and / or wherein the second average particle size is at most 140 nm, at most 130 nm, at least 110 nm, at most 95 nm, at most 91 nm, at most 88 nm, at most 86 nm, at most 82 nm, at most 80 nm, or at most 77 nm.

[0082] Embodiment 19. The composition according to any one of Embodiments 1 to 18, wherein the composition has a total content of at least 30% by weight, at least 35% by weight, at least 37% by weight, at least 40% by weight, at least 42% by weight, at least 45% by weight, or at least 48% by weight of the filler; and / or wherein the total content of the filler is at most 68% by weight, at most 64% by weight, at most 61% by weight, at most 57% by weight, at most 54% by weight, at most 51% by weight, or at most 49% by weight of the composition.

[0083] Implementation Scheme 20. The composition according to any one of Implementation Schemes 1 to 19, wherein the filler comprises calcium carbonate, silicon dioxide, magnesium carbonate, carbon black, alumina, aluminum trihydrate, zinc borate, titanium dioxide, iron oxide, or any combination thereof.

[0084] Implementation Scheme 21. The composition according to any one of Implementation Schemes 1 to 20, wherein the filler comprises a first filler, the first filler comprising calcium carbonate, silicon dioxide, magnesium carbonate, carbon black, aluminum oxide, aluminum trihydrate, zinc borate, titanium oxide, and iron oxide.

[0085] Implementation Scheme 22. The composition according to Implementation Scheme 21, wherein the filler comprises a second filler, the second filler comprising the same or different filler material as the first filler.

[0086] Implementation Scheme 23. The composition according to any one of Implementation Schemes 18 to 22, wherein the ratio of the first average particle size to the second average particle size is at least 5:1, at least 10:1, at least 15:1, at least 20:1, at least 25:1, at least 30:1, at least 35:1, or at least 40:1; and / or wherein the ratio of the first average particle size to the second average particle size is at most 90:1, at most 85:1, at most 80:1, at most 75:1, at most 70:1, at most 65:1, at most 60:1, at most 55:1, or at most 50:1.

[0087] Implementation Scheme 24. The composition according to any one of Implementation Schemes 1 to 23, wherein the composition comprises one or more of a coupling agent, a catalyst, a rheology modifier, or any combination thereof.

[0088] Implementation Scheme 25. The composition according to any one of Implementation Schemes 1 to 24, wherein the composition comprises a rheology modifier comprising a silane-modified silicone resin comprising a dimethyl-terminated silicone resin, a mineral oil, or any combination thereof.

[0089] Embodiment 26. The composition according to any one of Embodiments 1 to 25, wherein the composition comprises a rheology modifier in an amount of at least 1.3 wt%, at least 1.5 wt%, at least 1.8 wt%, at least 2.2 wt%, at least 2.5 wt%, at least 2.8 wt%, at least 3.2 wt%, at least 3.5 wt%, at least 3.9 wt%, at least 4.2 wt%, at least 4.4 wt%, at least 4.5 wt%, at least 4.8 wt%, or at least 5.0 wt% of the composition; and / or wherein the plasticizer is present in an amount of at most 9.5 wt%, at most 9.2 wt%, at most 8.7 wt%, at most 8.5 wt%, at most 8.2 wt%, at most 7.9 wt%, at most 7.6 wt%, or at most 7.2 wt% of the composition.

[0090] Implementation Scheme 27. The composition according to any one of Implementation Schemes 1 to 26, wherein the composition comprises: a catalyst containing a titanium-containing compound, said titanium-containing compound comprising diisopropoxybis(ethyl acetoacetate)titanium, tetrabutyl titanate, titanium isopropoxide (IV), or any combination thereof.

[0091] Implementation Scheme 28. The composition according to any one of Implementation Schemes 1 to 27, wherein the composition comprises a catalyst, wherein the catalyst is tin-free.

[0092] Embodiment 29. The composition according to any one of Embodiments 1 to 28, wherein the composition comprises a catalyst in an amount of at least 0.1 wt%, at least 0.3 wt%, at least 0.5 wt%, at least 0.7 wt%, at least 0.9 wt%, or at least 1.1 wt% of the composition; and / or wherein the catalyst is in an amount of at most 2.5 wt%, at most 2.2 wt%, at most 2.0 wt%, at most 1.8 wt%, at most 1.6 wt%, at most 1.4 wt%, or at most 1.2 wt% of the composition.

[0093] Implementation Scheme 30. The composition according to any one of Implementation Schemes 1 to 29, wherein the composition comprises a silane coupling agent comprising (3-aminopropyl)triethoxysilane, (3-glycidoxypropyl)trimethoxy, vinyltrimethoxysilane, diethoxy(3-glycidoxypropyl)-methylsilane, [8-(glycidoxy)-n-octyl]-trimethoxysilane, methacryloxypropyltrimethoxysilane, tetraethoxysilane, 3-(2-aminoethylamino)-propyltriethoxysilane, bis[3-(trimethoxysilyl)-propyl]amine, trimethoxy[3-(phenylamino)-propyl]silane, [3-(6-aminohexylamino)-propyl]trimethoxysilane, octyltrimethoxysilane, 3-glycidoxypropyl(dimethoxy)-methylsilane, or any combination thereof.

[0094] Implementation Scheme 31. The composition according to any one of Implementation Schemes 1 to 30, wherein the composition comprises a silane coupling agent in an amount of up to 0.5% by weight of the composition.

[0095] Implementation Scheme 32. The composition according to any one of Implementation Schemes 1 to 31, wherein the composition has an initial complex viscosity of up to 3000 Pa·s, up to 2700 Pa·s, up to 2500 Pa·s, up to 2100 Pa·s, up to 1800 Pa·s, or up to 1500 Pa·s; and / or wherein the initial complex viscosity is at least 700 Pa·s, at least 900 Pa·s, at least 1100 Pa·s, at least 1300 Pa·s, at least 1500 Pa·s, or at least 1700 Pa·s.

[0096] Implementation Scheme 33. The composition according to any one of Implementation Schemes 1 to 32, when the composition is aged at 70°C and 70% RH for 7 days, the composition has a complex viscosity change within ±15% of the initial complex viscosity of the composition, a storage modulus change within ±20% of the final storage modulus of the composition after 12 hours of curing, a vulcanization rate change (maximum value of dG' / dt) within ±15% of the initial vulcanization rate of the composition, or a combination thereof.

[0097] Implementation Scheme 34. The composition according to any one of Implementation Schemes 1 to 33, when the composition is exposed to 50% RH at 20°C to 25°C for at least 7 days, the composition has a complex viscosity change within ±20% of the original complex viscosity, a storage modulus change within ±50% of the original storage modulus, a vulcanization rate change within ±15% of the original vulcanization rate, or a combination thereof.

[0098] Implementation Scheme 35. The composition according to any one of Implementation Schemes 1 to 34, wherein the composition is capable of curing at a temperature of 20°C to 25°C.

[0099] Implementation Scheme 36. A one-part curable composition comprising the composition according to any one of Implementation Schemes 1 to 35.

[0100] Example

[0101] Example 1

[0102] The prepared compositions CS1, CS2, S2 and S3 have the components shown in Tables 1 to 4, respectively.

[0103] Table 1 Composition CS1

[0104] Material wt % Hydroxyl terminated PDMS 45.03 Dimethyl silicone oil 2.83 Trimethoxy(methyl)silane 2.77 Silane coupling agent (mixture) 0.36 DuPont TYZOR 726 (catalyst) 1.15 Nano calcium carbonate-1 30.13 Nano calcium carbonate-2 17.73

[0105] Compositions CS2, S3, and S4 comprise the same base polymer, plasticizer, coupling agent, filler, and catalyst, but differ in their crosslinking agents. The base polymer is a trimethoxy-terminated polydimethylsiloxane with a number average molecular weight of 43,100. Runhe 40K (available from Runhe Chemical) is an example of such a polymer and is used in all compositions CS2, S3, and S4. The plasticizer is a dimethyl-terminated silicone oil commercially available from Hubei Xingfa Chemicals Group Co., Ltd. The silane coupling agent is a mixture commercially available from Hubei Jianghan New Material Co., Ltd. The catalyst has the commercial name Tyzor 726. The crosslinking agent for composition CS2 is a trimethoxy(methyl)silane commercially available from Gelest. The crosslinking agent for composition S3 is a silane-modified polyether with a number average molecular weight of 5,000. A product from WackerChemie AG, under the trade name... The polymer of XT-120. The crosslinking agent of composition S4 is a silane-modified polyether with a number average molecular weight of 16,200. A product from Wacker Chemie AG, trade name [not specified], is used. The polymer of XT-50. The filler is a mixture of filler 1 (calcium carbonate with an average particle size of 3.2 microns) and filler 2 (calcium carbonate with an average particle size of 76 nm). The fillers are commercially available and can be purchased from Huber Engineered Materials, Omya AG, or Xuanchen Xinweihua Chemical Technology Co., Ltd.

[0106] Table 2 Composition CS2

[0107] Material wt % Base polymer 45.03 Plasticizer 2.83 Crosslinker 2.72 Silane coupling agent 0.36 Catalyst 1.13 Filler 1 24.38 Filler 2 24.38

[0108] Table 3 Composition S4

[0109] Material wt % Base polymer 42.03 Plasticizer 5.00 Crosslinker 2.72 Silane coupling agent 0.36 Catalyst 1.13 Filler 1 24.38 Filler 2 24.38

[0110] Table 4 Composition S3

[0111] Material wt % Base polymer 44.25 Plasticizer 3.5 Crosslinker 2.72 Silane coupling agent 0.36 Catalyst 1.13 Filler 1 24.38 Filler 2 24.38

[0112] As described in the embodiments herein, compositions CS1, CS2, S3, and S4 were tested for vulcanization rate, final storage modulus, and initial complex viscosity before and after exposure to 70% RH at 70°C for 7 days and 14 days, respectively. The test results are presented in... Figures 2 to 4 The results are shown in the table and summarized in Tables 5 through 8.

[0113] like Figures 2 to 4 As shown, the X-axis depicts the number of days the composition was aged before testing. "0" represents the composition that was not aged before testing. "7" and "14" represent tests performed 7 days and 14 days after aging before testing, respectively.

[0114] Table 5 Test results for composition CS1

[0115]

[0116] Table 6 Test results for composition CS2

[0117]

[0118] Compared to day 0, sample CS1 showed a significant decrease in vulcanization rate (52.16%), a significant decrease in final storage modulus (82.51%), and a slight decrease in initial complex viscosity (3.21%) after 7 days of aging, and failed to cure after 14 days of aging. Aging at 70°C and 70% RH for 7 days and 14 days corresponds to shelf lives of 6 months and 12 months, respectively (i.e., at room temperature in air). This indicates that composition CS1 can have a significantly shorter shelf life than 1 year, because the composition failed to cure after 14 days of aging at 70°C and 70% RH, and because the final storage modulus and vulcanization rate changed significantly after 7 days of aging at 70°C and 70% RH.

[0119] Compared to day 0, composition CS2 showed a significantly reduced vulcanization rate of 20.18%, a slight decrease in initial viscosity of 2.65%, and a significant decrease in final storage modulus of 45.56% after 7 days of aging; conversely, the vulcanization rate increased by 6.44%, the initial complex viscosity decreased significantly by 21.97%, and the final storage modulus decreased significantly by 71.77% after 14 days of aging. Composition CS2 exhibited superior performance compared to CS1, but the significant decrease in final storage modulus after 7 and 14 days of aging indicates a significant reduction in sealing strength. Overall, the test data suggest that the properties of composition CS2, such as strength, may significantly decrease over time with aging, and aging may have a significant adverse effect on the shelf life of the composition.

[0120] Table 7 Test results for composition S3

[0121]

[0122] Table 8 Test results for composition S4 (XT50)

[0123]

[0124] Compared to day 0, sample S3 showed a significantly increased vulcanization rate, e.g., 83.33%, a significantly decreased initial complex viscosity, e.g., 30.73%, and a slight change in final storage modulus after 7 days of aging; the vulcanization rate was significantly increased, e.g., 31.43%, the initial complex viscosity decreased by 13.75%, and the final storage modulus decreased, e.g., a decrease of 21.82% after 14 days of aging. When aged over time, composition S3 may exhibit improved properties and / or performance, such as initial complex viscosity and final storage modulus, compared to compositions CS1 and CS2. The decrease in initial complex viscosity and final storage modulus is considered acceptable. The increased vulcanization rate when aged over time may indicate an improved shelf life of the composition.

[0125] Compared to day 0, sample S4 exhibited a 5.22% decrease in vulcanization rate, a 7.76% increase in initial complex viscosity, and a 12.63% increase in final storage modulus after 7 days of aging. After 14 days of aging, the vulcanization rate decreased by 8.24%, the initial complex viscosity increased by 18.06%, and the final storage modulus decreased by 37.88%. Compared to samples CS1 and CS2, sample S4 demonstrated improved stability in the tested performance, indicating that sample S4 outperforms samples CS1 and CS2 over time. The small change in vulcanization rate suggests that the composition retains its reactivity, indicating an improved shelf life for sample S4.

[0126] Example 2

[0127] The reactivity of polydimethylsiloxane polymers modified with different silanes was tested by aging. The polymers were aged for 7 and 14 days, respectively, in an ambient chamber at 70°C and 70% RH. Reactivity was expressed as the vulcanization rate measured according to the embodiments described herein. The polymer with the smallest change in vulcanization rate was expected to maintain higher reactivity during aging. The initial vulcanization rate was measured before aging (referred to as "day 0"). The vulcanization rate of the aged polymers was measured after 7 days (referred to as "day 7") and 14 days (referred to as "day 14"). The changes in vulcanization rate and D14 on day 7 compared to day 0 were determined and are included in Table 9 below. Negative percentages indicate a decrease in vulcanization rate, and positive percentages indicate an increase in vulcanization rate.

[0128] Table 9

[0129]

[0130] It can be observed that, compared with other polymers, polymer 2, namely trimethoxy-terminated PDMS with a number average molecular weight of 43,100, exhibits a significantly reduced decrease in vulcanization rate / reactivity after aging over a prolonged period.

[0131] Example 3

[0132] Compositions were prepared using different fillers, as shown in Table 10. Except for the fillers, all compositions had the same components and amounts as composition CS1. The total filler content was the same for all compositions. Filler 1 was calcium carbonate with an average particle size of 3 micrometers, and filler 2 was calcium carbonate with an average particle size of 0.04 micrometers.

[0133] The properties of the compositions were evaluated and are included in Table 10. Mixing of compositions 1 through 5 was observed to be difficult, and the high viscosity of compositions 1 through 5 resulted in lower extrusion rates. The tensile strength of cured compositions 6 and 8 was measured according to ASTM D412. Composition 6 exhibited a tensile strength of 157 psi, and composition 8 exhibited edge tensile strength.

[0134] Table 10

[0135]

[0136] The foregoing embodiments relate to compositions, and specifically to room temperature vulcanizing compositions for silicone sealants, representing a departure from the prior art. The compositions of the embodiments herein utilize a combination of features that contribute to unexpectedly superior performance compared to conventional sealant compositions. Without wishing to be limited by any theory, improvements in performance can be facilitated by utilizing specific combinations of a first component (silane-modified silicone polymer) and a second component (silane-modified polyether), combined with filler particle size distribution, particle size ratio, and / or the content ratio between different filler materials, or any combination thereof. For example, specific combinations of the first and second components can contribute to increased service life, such as minimizing the vulcanization rate and changes in thermal properties of the composition with aging. The filler materials of the embodiments herein can contribute to the formation of compositions with improved viscosity and uniformity, optimal extrusion rates, or any combination thereof.

[0137] Note that not all activities described above in the general description or embodiments are required; some specific activities may be unnecessary, and one or more additional activities may be provided in addition to those described. Furthermore, the order in which the activities are listed is not necessarily the order in which they are performed.

[0138] The benefits, other advantages, and solutions to the problems have been described above with respect to specific embodiments. However, these benefits, advantages, solutions to the problems, and any features that may cause any benefit, advantage, or solution to occur or become more significant should not be construed as key, necessary, or essential features of any or all claims.

[0139] The description and illustrations of the embodiments described herein are intended to provide a general understanding of the structure of various embodiments. The description and illustrations are not intended as an exhaustive and comprehensive description of all elements and features of devices and systems using the structures or methods described herein. Individual embodiments may also be provided in combination within a single embodiment, and conversely, for brevity, various features described in the context of a single embodiment may also be provided individually or in any sub-combination. Furthermore, references to values ​​stated in the scope include every value within that scope. Many other embodiments will become apparent to those skilled in the art only after reading this specification. Other embodiments may be used and other embodiments may be derived from this disclosure, such that structural substitutions, logical substitutions, or other changes may be made without departing from the scope of the invention. Therefore, this disclosure should be considered illustrative rather than restrictive.

Claims

1. A composition comprising: The first component comprises a silane-modified silicone resin, wherein the first component has a first content of more than 30% by weight of the composition; The second component, comprising a silane-modified polyether; and A filler having a multi-model particle size distribution.

2. The composition according to claim 1, wherein the silane-modified silicone resin has a number average molecular weight of up to 60,000 g / mol, up to 55,000 g / mol, up to 50,000 g / mol, up to 45,000 g / mol, up to 40,000 g / mol, up to 35,000 g / mol, up to 30,000 g / mol, or up to 25,000 g / mol; and / or wherein the number average molecular weight of the silane-modified silicone resin is at least 15,000 g / mol, at least 20,000 g / mol, at least 25,000 g / mol, at least 30,000 g / mol, at least 35,000 g / mol, at least 40,000 g / mol, or at least 45,000 g / mol.

3. The composition according to claim 1 or 2, wherein the silane-modified organosilicon resin comprises a terminal alkoxysilanol group.

4. The composition of claim 3, wherein the terminal alkoxysilanol group comprises a trimethoxysilanol group.

5. The composition according to any one of claims 1 to 4, wherein the silane-modified organosilicon resin comprises repeating units of the formula [(Si(CH3)2O].

6. The composition according to any one of claims 3 to 5, wherein the terminal alkoxysilanol group is directly bonded to an oxygen atom, and the oxygen atom is directly bonded to a silicon atom.

7. The composition according to any one of claims 1 to 6, wherein the silane-modified silicone resin comprises a trimethoxy-terminated polydimethylsiloxane.

8. The composition according to any one of claims 1 to 7, wherein when the first component is exposed to 70% RH at 70°C for at least 14 days, the first component has a vulcanization rate variation within ±15% of the original vulcanization rate.

9. The composition according to any one of claims 1 to 8, wherein the first content is at least 32% by weight, at least 34% by weight, at least 35% by weight, at least 37% by weight, at least 38% by weight, at least 40% by weight, at least 42% by weight, or at least 44% by weight of the composition; and / or wherein the first content is at most 56% by weight, at most 54% by weight, at most 53% by weight, at most 51% by weight, at most 49% by weight, at most 46% by weight, at most 45% by weight, or at most 43% by weight of the composition.

10. The composition according to any one of claims 1 to 9, wherein the silane-modified polyether has a number average molecular weight of at least 4000, at least 5000, at least 6500, at least 7200, at least 8000, at least 9000, at least 10000, at least 11200, at least 12500, at least 13500, at least 14800, at least 15600, at least 16100, or at least 16500; and / or the silane-modified polyether has a number average molecular weight of at most 25000, at most 23600, at most 21700, at most 21000, at most 19800, at most 18600, at most 17500, at most 16900, or at most 16300.

11. The composition according to any one of claims 1 to 10, wherein the second component has a second content of less than 10% by weight, up to 9% by weight, up to 8% by weight, up to 7% by weight, up to 6% by weight, or up to 5% by weight of the composition; and / or wherein the second component has a second content of at least 0.5% by weight, at least 0.8% by weight, at least 1.2% by weight, at least 1.5% by weight, at least 1.7% by weight, at least 1.9% by weight, at least 2.0% by weight, at least 2.2% by weight, at least 2.53% by weight, or at least 2.5% by weight of the composition.

12. The composition according to any one of claims 1 to 11, wherein the second component has a second content in the range of at least 1% by weight and at most 5% by weight of the composition.

13. The composition according to any one of claims 1 to 12, wherein the silane-modified polyether comprises an α-silane-terminated polyether.

14. The composition according to any one of claims 1 to 13, wherein the silane-modified polyether comprises a terminal dimethoxysilanol group.

15. The composition according to any one of claims 1 to 14, wherein the silane-modified polyether comprises a silyl-methylcarbamate-terminated polyether.

16. The composition according to any one of claims 1 to 15, wherein the silane-modified polyether comprises dimethoxy(methyl)silyl-methylcarbamate-terminated polypropylene glycol.

17. The composition of any one of claims 1 to 16, wherein the filler comprises a first filler material having a first average particle size of at least 0.8 micrometers, at least 1.1 micrometers, at least 1.5 micrometers, at least 1.8 micrometers, at least 2.2 micrometers, at least 2.5 micrometers, at least 2.7 micrometers, at least 3.0 micrometers, or at least 3.2 micrometers; and / or wherein the first average particle size is at most 6.3 micrometers, at most 6.0 micrometers, at most 5.7 micrometers, at most 5.4 micrometers, at most 5.1 micrometers, at most 4.8 micrometers, at most 4.4 micrometers, at most 4.1 micrometers, at most 3.9 micrometers, at most 3.6 micrometers, or at most 3.3 micrometers.

18. The composition according to any one of claims 1 to 17, wherein the filler comprises a second filler material having a second average particle size of at least 33 nm, at least 36 nm, at least 39 nm, at least 44 nm, at least 48 nm, at least 53 nm, at least 57 nm, at least 60 nm, at least 63 nm, at least 66 nm, at least 70 nm, at least 73 nm, or at least 76 nm and / or wherein the second average particle size is at most 140 nm, at most 130 nm, at least 110 nm, at most 95 nm, at most 91 nm, at most 88 nm, at most 86 nm, at most 82 nm, at most 80 nm, or at most 77 nm.

19. The composition according to any one of claims 1 to 18, wherein the composition has a total content of at least 30% by weight, at least 35% by weight, at least 37% by weight, at least 40% by weight, at least 42% by weight, at least 45% by weight, or at least 48% by weight of the filler; and / or wherein the total content of the filler is at most 68% by weight, at most 64% by weight, at most 61% by weight, at most 57% by weight, at most 54% by weight, at most 51% by weight, or at most 49% by weight of the composition.

20. The composition according to any one of claims 1 to 19, wherein the filler comprises calcium carbonate, silicon dioxide, magnesium carbonate, carbon black, alumina, aluminum trihydrate, zinc borate, titanium dioxide, iron oxide, or any combination thereof.

21. The composition according to any one of claims 1 to 20, wherein the filler comprises a first filler, the first filler comprising calcium carbonate, silicon dioxide, magnesium carbonate, carbon black, aluminum oxide, aluminum trihydrate, zinc borate, titanium oxide, and iron oxide.

22. The composition of claim 21, wherein the filler comprises a second filler, the second filler comprising the same or different filler material as the first filler.

23. The composition according to any one of claims 18 to 22, wherein the ratio of the first average particle size to the second average particle size is at least 5:1, at least 10:1, at least 15:1, at least 20:1, at least 25:1, at least 30:1, at least 35:1, or at least 40:1; and / or wherein the ratio of the first average particle size to the second average particle size is at most 90:1, at most 85:1, at most 80:1, at most 75:1, at most 70:1, at most 65:1, at most 60:1, at most 55:1, or at most 50:

1.

24. The composition according to any one of claims 1 to 23, wherein the composition comprises one or more of a coupling agent, a catalyst, a rheology modifier, or any combination thereof.

25. The composition according to any one of claims 1 to 24, wherein the composition comprises a rheology modifier comprising a silane-modified silicone resin, the silicone resin comprising a dimethyl-terminated silicone resin, a mineral oil, or any combination thereof.

26. The composition according to any one of claims 1 to 25, wherein the composition comprises a rheology modifier in an amount of at least 1.3% by weight, at least 1.5% by weight, at least 1.8% by weight, at least 2.2% by weight, at least 2.5% by weight, at least 2.8% by weight, at least 3.2% by weight, at least 3.5% by weight, at least 3.9% by weight, at least 4.2% by weight, at least 4.4% by weight, at least 4.5% by weight, at least 4.8% by weight, or at least 5.0% by weight of the composition; and / or wherein the plasticizer is present in an amount of at most 9.5% by weight, at most 9.2% by weight, at most 8.7% by weight, at most 8.5% by weight, at most 8.2% by weight, at most 7.9% by weight, at most 7.6% by weight, or at most 7.2% by weight of the composition.

27. The composition according to any one of claims 1 to 26, wherein the composition comprises: a catalyst containing a titanium-containing compound, said titanium-containing compound comprising diisopropoxybis(ethyl acetoacetate)titanium, tetrabutyl titanate, titanium isopropoxide (IV), or any combination thereof.

28. The composition according to any one of claims 1 to 27, wherein the composition comprises a catalyst, wherein the catalyst is tin-free.

29. The composition according to any one of claims 1 to 28, wherein the composition comprises a catalyst in an amount of at least 0.1% by weight, at least 0.3% by weight, at least 0.5% by weight, at least 0.7% by weight, at least 0.9% by weight, or at least 1.1% by weight of the composition; and / or wherein the catalyst is in an amount of at most 2.5% by weight, at most 2.2% by weight, at most 2.0% by weight, at most 1.8% by weight, at most 1.6% by weight, at most 1.4% by weight, or at most 1.2% by weight of the composition.

30. The composition according to any one of claims 1 to 29, wherein the composition comprises a silane coupling agent comprising (3-aminopropyl)triethoxysilane, (3-glycidoxypropyl)trimethoxy, vinyltrimethoxysilane, diethoxy(3-glycidoxypropyl)-methylsilane, [8-(glycidoxy)-n-octyl]-trimethoxysilane, methacryloxypropyltrimethoxysilane, tetraethoxysilane, 3-(2-aminoethylamino)-propyltriethoxysilane, bis[3-(trimethoxysilyl)-propyl]amine, trimethoxy[3-(phenylamino)-propyl]silane, [3-(6-aminohexylamino)-propyl]trimethoxysilane, octyltrimethoxysilane, 3-glycidoxypropyl(dimethoxy)-methylsilane, or any combination thereof.

31. The composition according to any one of claims 1 to 30, wherein the composition comprises a silane coupling agent in an amount of up to 0.5% by weight of the composition.

32. The composition according to any one of claims 1 to 31, wherein the composition has an initial complex viscosity of up to 3000 Pa·s, up to 2700 Pa·s, up to 2500 Pa·s, up to 2100 Pa·s, up to 1800 Pa·s, or up to 1500 Pa·s; and / or wherein the initial complex viscosity is at least 700 Pa·s, at least 900 Pa·s, at least 1100 Pa·s, at least 1300 Pa·s, at least 1500 Pa·s, or at least 1700 Pa·s.

33. The composition according to any one of claims 1 to 32, wherein when the composition is aged at 70°C and 70% RH for 7 days, the composition has a complex viscosity change within ±15% of the initial complex viscosity of the composition, a storage modulus change within ±20% of the final storage modulus of the composition after 12 hours of curing, a vulcanization rate change (maximum value of dG' / dt) within ±15% of the initial vulcanization rate of the composition, or a combination thereof.

34. The composition according to any one of claims 1 to 33, wherein when the composition is exposed to 50% RH at 20°C to 25°C for at least 7 days, the composition has a complex viscosity change within ±20% of the original complex viscosity, a storage modulus change within ±50% of the original storage modulus, a vulcanization rate change within ±15% of the original vulcanization rate, or a combination thereof.

35. The composition according to any one of claims 1 to 34, wherein the composition is capable of curing at a temperature of 20°C to 25°C.

36. A one-part curable composition comprising the composition according to any one of claims 1 to 35.

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