Olefin polymer composition with improved curing

Abstract

A process for forming a crosslinked composition, and related compositions, comprising at least the following components: a) an elastomer or olefin-based polymer having a density greater than 0.920 g / cc, component a having a total unsaturation degree of 0.20 / 1000C or greater; b) a molecule containing at least one Si-H group; c) at least one peroxide; d) optionally at least one crosslinking coagent different from component b, and applying heat, and optionally radiation, to the composition, and related compositions. A process for forming a crosslinked composition, and related compositions, comprising the steps of: a) an elastomer or olefin-based polymer having a density greater than 0.920 g / cc, component a having a total unsaturation degree of 0.20 / 1000C or greater; b) a molecule comprising at least one Si—H group, and applying radiation, and optionally heat, to the composition, and related compositions.

Description

[Background technology]

[0001] Demand for photovoltaic (PV) modules is increasing. This increase is driven by government incentives for PV, as well as the increased efficiency and cost competitiveness of PV generation compared to conventional grid power sources. PV encapsulation film is one of the important materials for PV modules. Currently, ethylene vinyl acetate (EVA) film is widely used as an encapsulation material for conventional solar cell modules due to its excellent transparency and curing response. However, more recent high-efficiency PERC (Passivated Emitter and Rear Cell) bifacial modules exhibit a high risk of PID (potential induced degradation) when conventional EVA is used as the encapsulation film. Olefin polymer compositions offer improved anti-PID performance but typically have a reduced peroxide curing response compared to EVA. A moving die rheometer (MDR) is used to characterize the curing response and generate MH (maximum torque) and T90 (time to achieve 90% torque increase) values. There is a need for new olefin-based compositions that provide improved curing responses, such as higher MH values ​​and lower T90 values.

[0002] European Patent Application No. 2958151(A1) concerns densities of 0.860 to 0.920 g / mL, MFRs of 0.1 to 100, and product N *Disclosed is an encapsulation material composition containing an ethylene / alpha-olefin encapsulant having V≧10 (wherein N is the number of branches derived from the comonomer, and V is the total number of vinyl and vinylidene (both per 1000C)). The composition may also contain an alkoxylsilane or chlorosilane coupling agent to improve the strength of adhesion between the encapsulation film and the glass substrate. Examples of such silane coupling agents include γ-chloropropyltrimethoxysilane, vinyltrichlorosilane, vinyltriethoxysilane, vinyltrimethoxysilane, vinyltris(β-methoxyethoxy)silane, γ-methacrylate-oxypropyltrimethoxysilane, β-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, vinyltriacetoxysilane, γ-mercaptopropyltrimethoxysilane, γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane, and 3-acrylooxypropyltrimethoxysilane. See also Publication No. 2012-009688(A) (machine translation), in which the total amount of vinyl, vinylidene, cis-vinylene, trans-vinylene, and trisubstituted-vinylene in the ethylene / α-olefin copolymer is 0.22 (per 1000C) or more.

[0003] International Publication No. 2020 / 135680(A1) is a curable composition for sealing films, wherein formula A 1 L 1 L 2 A 2 Telechelic polyolefin or formula A 1 L 1The disclosed invention provides a curable composition comprising an unsaturated polyolefin and a curing component containing a crosslinking agent, an auxiliary agent, and a silane coupling agent. Examples of crosslinking agents include peroxides; phenols; azides; aldehyde-amine reaction products; substituted ureas; substituted guanidines; substituted xanthetes; substituted dithiocarbamates; sulfur-containing compounds such as thiazoles, sulfenamides, thiuram disulfide, paraquinone dioxime, dibenzoparaquinone dioxime, and sulfur; imidazoles; silanes; metal oxides such as zinc oxide, magnesium oxide, and lead oxide; dinitroso compounds such as p-quinone dioxime and r,r'-dibenzoylquinone dioxime; and phenol-formaldehyde resins containing hydroxymethyl or halomethyl functional groups, as well as combinations thereof (see paragraph

[0240] ). Suitable silane coupling agents include γ-chloropropyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyl-tris-(β-methoxy)silane, allyltrimethoxysilane, γ-methacrylateoxypropyltrimethoxysilane, β-(3,4-ethoxycyclohexyl)ethyltrimethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-mercaptopropyltrimethoxysilane, γ-aminopropyltrimethoxysilane, N-β-(aminoethyl)-γ-aminopropyltrimethoxysilane, and 3-(trimethoxysilyl)propyl methacrylate, vinyltriacetoxysilane, γ-(meth)acrylooxypropyltrimethoxysilane, and combinations thereof (see paragraph

[0260] ). See also International Publication Nos. 2020 / 135708(A1), 2020 / 140058, 2020 / 140061, and 2020 / 140067.

[0004] European Patent Application No. 2637217(A1) discloses a encapsulation material for solar cells comprising an ethylene / α-olefin copolymer that satisfies the following requirements (a1) to (a4): (a1) the content of structural units derived from ethylene is 80 to 90 mol%, and the content of structural units derived from α-olefins (C3 to C20) is 10 to 20 mol%, (a2) the MFR is 2 g / 10 min or more and less than 10 g / 10 min, and (a3) ​​the density is 0.865 to 0.884 g / cm³. 3 (a4) The Shore A hardness is 60-85. The sealing material also contains peroxides and silane coupling agents. Some examples of silane coupling agents include vinyltriethoxysilane, vinyltrimethoxysilane, vinyltris(β-methoxyethoxysilane), γ-glycidoxypropyltrimethoxysilane, γ-aminopropyltriethoxysilane, and γ-methacrylateoxypropyltrimethoxysilane. Organic peroxides can be used as crosslinking agents.

[0005] U.S. Patent No. 8,581,094 discloses a POE encapsulation design in which a polyolefin, such as an ethylene / octene copolymer, is crosslinked such that the copolymer contains less than 70 percent xylene-soluble extract. U.S. Patent No. 4,539,357 discloses a silicone composition comprising a blend of vinyl-containing gum, silica-reinforced filler, hydride crosslinker, and peroxide curing catalyst. International Publication No. 2002 / 072704 discloses a thermosetting silicone composition comprising a reactive silicone, a silicone hydride crosslinker, a rhodium metal catalyst, and an inhibitor system comprising peroxides and acetylene compounds. The combination of inhibitors is disclosed as providing a longer shelf life at low temperatures. U.S. Patent Application Publication No. 2006 / 0205908 discloses a curable liquid silicone rubber that provides a fast-curing, one-component silicone system using appropriate levels of both silicon hydride and organic peroxide.

[0006] However, there is still a need for new olefin-based polymer compositions and related crosslinking processes for improved curing performance. This need has been met by the following invention. [Overview of the project]

[0007] In the first embodiment, a process for forming a crosslinked composition, the process comprising at least the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A molecule containing at least one Si-H group, c) at least one peroxide, d) A process comprising applying heat and optionally radiation to a composition comprising, optionally, at least one crosslinking agent different from component b.

[0008] In a second embodiment, a process for forming a crosslinked composition, the process comprising the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A process comprising applying radiation and optionally heat to a composition comprising a molecule containing at least one Si-H group.

[0009] In a third embodiment, the composition comprises at least the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A molecule containing at least one Si-H group, c) at least one peroxide, d) A composition comprising, optionally, at least one crosslinking agent different from component b.

[0010] In a fourth aspect, a composition comprising at least the following components: a) An elastomer having a total unsaturation of 0.20 / 1000C or more, or an olefin polymer having a density of more than 0.920 g / cc and a total unsaturation of 0.20 / 1000C or more, wherein the elastomer is i) A telechelic polyolefin of formula A 1 L 1 L 2 A 2 ; ii) An ethylene / alpha-olefin / non-conjugated polyene interpolymer having a Mooney viscosity (ML1+4, 125°C) of 5 to 30; iii) An ethylene / alpha-olefin copolymer, or iv) An elastomer or olefin polymer selected from unsaturated polyolefins of formula A 1 L 1 ; and b) A molecule containing at least one Si-H group. DETAILED DESCRIPTION OF THE INVENTION

[0011] Processes and related compositions that provide excellent curing characteristics (for example, a significant increase in the MH value and a significant decrease in the T90 value) have been discovered.

[0012] In a first aspect, a process for forming the crosslinked composition discussed above is provided. In a second aspect, a process for forming the crosslinked composition discussed above is provided. Each process may include a combination of two or more embodiments described herein. Each of the components a, b, c, and d may include a combination of two or more embodiments described herein.

[0013] In a third embodiment, the compositions discussed above are provided. In a fourth embodiment, the compositions discussed above are provided. Each composition may comprise a combination of two or more embodiments described herein. Each component a, b, c, and d may comprise a combination of two or more embodiments described herein.

[0014] Unless otherwise specified, the following embodiments apply to the first to fourth aspects of the present invention.

[0015] In each embodiment described herein, or in combination of two or more embodiments, component a is an elastomer.

[0016] In each embodiment described herein, or in combination of two or more embodiments, the elastomer (component a) is present in a concentration of 0.860 or more, or 0.862 or more, or 0.864 or more, or 0.866 or more, or 0.868 or more, or 0.870 g / cc or more (1 cc = 1 cm³). 3 ) has a density of . In each embodiment described herein, or in combination of two or more embodiments, the elastomer (component a) has a density of 0.920 or less, or 0.915 or less, or 0.910 or less, or 0.905 or less, or 0.900 or less, or 0.895 or less, or 0.890 or less, or 0.885 or less, or 0.880 g / cc or less.

[0017] In each embodiment described herein, or in combination of two or more embodiments, the elastomer is of formula A 1 L 1 L 2 A 2 Telechelic polyolefins, or formula A 1 L 1 Selected from unsaturated polyolefins, ethylene / alpha-olefin / non-conjugated polyeninterpolymers, or ethylene / alpha-olefin copolymers.

[0018] Each embodiment, or combination of two or more embodiments, described herein, Component b contains two or more Si-H groups, or three or more Si-H groups.

[0019] In each embodiment described herein, or in combination of two or more embodiments, the silicon of SiH in component b is bonded to at least one alkyl group, R.

[0020] In each embodiment described herein, or in combination of two or more embodiments, the silicon of SiH in component b is bonded to at least one alkoxyl group, RO, where R is an alkyl group.

[0021] In each embodiment described herein, or in combination of two or more embodiments, the silicon of SiH in component b is bonded to at least one Si-O group (see, for example, structures (s9) to (s16) below).

[0022] In each embodiment described herein, or in combination of two or more embodiments, component b comprises one or more, two or more, or three or more siloxane groups (-Si-O-Si-).

[0023] In each embodiment described herein, or in combination of two or more embodiments, component b comprises at least one Si-H group in addition to an alkoxylsilane (RO-Si), where R is an alkyl group.

[0024] In each embodiment described herein, or in combination of two or more embodiments, component b comprises one or more double bonds.

[0025] Crosslinked compositions are also provided, formed from processes of one or more embodiments described herein, or from compositions of one or more embodiments described herein.

[0026] Articles are also provided that include at least one component formed from the compositions of one or more embodiments described herein.

[0027] Elastomer Elastomers are polymers that possess viscoelastic (i.e., both viscous and elastic) properties. Examples of elastomers include ethylene / alpha-olefin / non-conjugated polyene interpolymers; formula A 1 L 1 L 2 A 2 Telechelic polyolefin, formula A 1 L 1 Examples include, but are not limited to, unsaturated polyolefins, ethylene / alpha-olefin interpolymers, polyisoprene, polybutadiene, styrene-butadiene rubber, nitrile rubber, polychloroprene, butyl rubber, halogenated butyl rubber, and halogenated nitrile rubber.

[0028] The ethylene / alpha-olefin / non-conjugated polyene interpolymers described herein comprise, in polymerization form, ethylene, alpha-olefin, and non-conjugated polyene. The alpha-olefin may be either an aliphatic or aromatic compound. Examples of alpha-olefins include, but are not limited to, C3-C20 alpha-olefins, C3-C10 alpha-olefins, and C3-C8 alpha-olefins. In one embodiment, the interpolymer is an ethylene / propylene / non-conjugated diene interpolymer, a terpolymer, and EPDM. A preferred example of the non-conjugated polyene is a C4-C40 non-conjugated diene. Examples of non-conjugated dienes include, but are not limited to, 5-ethylidene-2-norbornene (ENB), 5-vinyl-2-norbornene (VNB), dicyclopentadiene, 1,4-hexadiene, or 7-methyl-1,6-octadiene, and further derived from ENB, VNB, dicyclopentadiene, or 1,4-hexadiene, and further derived from ENB or VNB, and further derived from ENB.

[0029] Ethylene / alpha-olefin interpolymers contain ethylene and alpha-olefins in their polymerization form. Examples of alpha-olefins include, but are not limited to, C3-C20 alpha-olefins such as propylene, 1-butene, 1-hexene, and 1-octene, as well as C3-C10 alpha-olefins and C3-C8 alpha-olefins.

[0030] Telechelic polyolefins, for example, A 1 L 1 L 2 A 2 (Formula I) and unsaturated polyolefins, for example, A 1 L 1 The formulas of (Formula II) are described below. See also International Publication No. 2020 / 140058 and International Publication No. 2020 / 140067 (each incorporated herein by reference).

[0031] Formula I:A 1 L 1 L 2 A 2 It is a telechelic polyolefin, in which, L 1 L is a polyolefin, preferably an ethylene-based polymer, and further an ethylene / alpha-olefin interpolymer, and further an ethylene / alpha-olefin copolymer. 1 (Divalent) is A 1 and L 2 Please note that it is linked to [this].

[0032] A 1 The following: a) vinyl group, b) formula CH2=C(Y 1 )- vinylidene group, c) formula Y 1 CH=CH- vinylene group, d) vinyl group and formula Y 1 A mixture of CH=CH- vinylene group, e) vinyl group and formula CH2=C(Y 1 )- Mixture with vinylidene group, f) formula CH2=C(Y 1 )- vinylidene group and formula Y 1A mixture of CH=CH- vinylene group and g) vinyl group and formula CH2=C(Y 1 )- vinylidene group and formula Y 1 Selected from the group consisting of mixtures with the vinylene group CH=CH-, Y 1 Each occurrence is independent, C1~C 30 It is a hydrocarbyl group, L 2 C1~C 32 It is a hydrocarbylene group, A 2 This is a hydrocarbyl group containing a hindered double bond.

[0033] Formula II:A 1 L 1 It is an unsaturated polyolefin, in which, L 1 is a polyolefin, preferably an ethylene-based polymer, and further an ethylene / alpha-olefin interpolymer, and further an ethylene / alpha-olefin copolymer, provided that L 1 (Monovalent) is A 1 Note that it is linked, A 1 The following are: a) vinyl group, b) formula CH2=C(Y 1 )- vinylidene group, c) formula Y 1 CH=CH- vinylene group, d) vinyl group and formula Y 1 A mixture of CH=CH- vinylene group, e) vinyl group and formula CH2=C(Y 1 )- Mixture with vinylidene group, f) formula CH2=C(Y 1 )- vinylidene group and formula Y 1 A mixture of CH=CH- vinylene group and g) vinyl group and formula CH2=C(Y 1 )- vinylidene group and formula Y 1 Selected from the group consisting of mixtures with the vinylene group CH=CH-, Y 1 Each occurrence is independent, C1~C 30 It is a hydrocarbyl group.

[0034] Regarding equations I and II, L 1Each of these is independently one of the polyolefins described above, and can be obtained in part from the polymerization (e.g., coordination polymerization) of unsaturated monomers (and comonomers). Examples of suitable monomers (and comonomers) include ethylene and alpha-olefins with 3 to 30 carbon atoms, and further with 3 to 20 carbon atoms, such as propylene, 1-butene, 1-pentene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 3-methyl-1-pentene, 3,5,5-trimethyl-1-hexene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 5-ethyl-1-nonene, 1-octadecene, and 1-eicosene; conjugated dienes or non-conjugated dienes, for example, butadiene, isoprene, 4-methyl-1,3-pentadiene, 1,3-pentadiene, 1,4-pentadiene, 1,5-hexadiene, 1,4-hexadiene, 1,3-hexadiene, 1,5-heptadiene, 1,6-heptadiene, 1,3-octadiene, 1,4-octadiene, 1,5-octadiene, 1,6-octadiene, 1,7-octadiene, 1,9-decadiene, 7-methyl-1,6-octadiene, 4-ethylidene-8-methyl-1,7-nonadiene, and 5,9-dimethyl-1,4,8-decatriene, 5-methyl-1,4-hexadiene, 3,7-dimethyl-1,6-octadiene, 3,7-dimethyl-1,7-octadiene, and mixed isomers of dihydromyrcene and dihydroocimene; norbornene and alkenyl, alkylidene, cycloalkenyl and cycloalkylidene norbornene, e.g., 5-ethylidene-2-norbornene, 5-vinyl-2-norbornene, dicyclopentadiene, 5-methylene-2-norbornene, 5-propenyl-2-norbornene Examples include, but are not limited to, bornene, 5-isopropylidene-2-norbornene, 5-(4-cyclopentenyl)-2-norbornene, 5-cyclohexylidene-2-norbornene, and norbornadiene; and aromatic vinyl compounds, such as styrene, mono- or polyalkylstyrene (including styrene, o-methylstyrene, t-methylstyrene, m-methylstyrene, p-methylstyrene, o-dimethylstyrene, o-ethylstyrene, m-ethylstyrene, and p-ethylstyrene).

[0035] Examples of polyisoprenes include natural polyisoprenes such as cis-1,4-polyisoprene (natural rubber, NR) and trans-1,4-polyisoprene (gutah-percha), as well as synthetic polyisoprenes (IR (isoprene rubber) representing isoprene rubber). Examples of polybutadiene (or BR (butadiene rubber) representing butadiene rubber) include polymers of 1,3-butadiene. Examples of polychloroprene include polymers of chloroprene. Examples of butyl rubber include copolymers of isobutylene and isoprene (IIR). Examples of halogenated butyl rubber include chlorobutyl rubber (CIIR) and bromobutyl rubber (BIIR). Examples of styrene-butadiene rubber include copolymers of styrene and butadiene (SBR). Examples of nitrile rubber include copolymers of butadiene and acrylonitrile (NBR).

[0036] A molecule containing at least one Si-H group A molecule containing at least one Si-H group refers to a compound or polymer containing at least one Si-H group in terms of number. Examples include 1,1,1,3,5,5,5-heptamethyltrisiloxane; 1,1,3,3-tetramethyldisiloxane; 3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane; dimethylhydrogensiloxy-modified silica; 15mPa *Trimethyl-terminated dimethyl-co-hydrogen methylpolysiloxane having a nominal viscosity of s and 0.78 wt% SiH; hydride-modified silica Q resin (e.g., HQM-105 or HQM-107, respectively, available from Gelest); tris(dimethylsilyloxy)phenyl-silane; methyltris(dimethylsiloxy)silane; 1,3,5,7-tetramethylcyclotetrasiloxane; tetrakis(dimethylsiloxy)silane; 1,1,3,3,5,5-hexamethyl Trisiloxane; 1,1,3,3-tetramethyl-disiloxane; triethoxysilane, or 1-(2-(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane; hexenylsilane; allylsilane; vinylsilane; octenylsilane; hexenyldimethylsilane; octenyldimethylsilane; vinyldimethylsilane; vinyldiethylsilane; vinyldi(n-butyl)silane; vinylmethyloctadecylsilane; vinyldiphenylsilane; Nyldibenzylsilane; Allyldimethylsilane; Allyldiethylsilane; Allyldi(n-butyl)silane; Allylmethyloctadecylsilane; Allyldiphenylsilane; Bishexenylsilane; and Allylbenzylsilane; 5-Hexenyldimethylsilane (HDMS); 7-Octenyldimethylsilane (ODMS); Allyldimethylsilane (ADMS); Butyldimethylsilane; 1-(Buta-3-en-1-yl) Examples of silanes include, but are not limited to, -1,1,3,3-tetramethyldisiloxane (BuMMH); 1-(hexa-5-en-1-yl)-1,1,3,3-tetramethyldisiloxane (HexMMH); (2-bicyclo[2.2.1]hept-5-en-2-yl)ethyl)-dimethylsilane (NorDMS) and 1-(2-bicyclo[2.2.1]hept-5-en-2-yl)ethyl)-1,1,3,3-tetramethyldisiloxane (NorMMH). Several silanes are shown below in structures (s1) to (s16).

[0037] [ka]

[0038] peroxide As used herein, a peroxide contains at least one oxygen-oxygen bond (OO). Examples of peroxides include, but are not limited to, dialkyl, diaryl, dialkalyl peroxides having the same or different alkyl, aryl, alkalyl, or aralkyl moieties, and further, dialkyl, diaryl, dialkalyl, or dialkyl peroxides having the same respective alkyl, aryl, alkalyl, or aralkyl moieties.

[0039] Examples of organic peroxides include tert-butylperoxy-2-ethylhexyl carbonate (TBEC), tert-amylperoxy-2-ethylhexyl carbonate (TAEC), tert-amylperoxyisopropyl carbonate, tert-butylperoxyisopropyl carbonate, 1,1-di(tert-butyl-peroxy)cyclohexane, 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane, 1,1-di(tert-amylperoxy)cyclohexane, dibenzoyl peroxide, dicumyl peroxide (DCP), tert-butylperoxybenzoate, and di-tert-amyl peroxide (di-tert-amyl Examples include, but are not limited to, peroxide (DTAP), bis(t-butyl-peroxyisopropyl)benzene (BIPB), isopropylcumyl t-butyl peroxide, t-butylcumyl peroxide, di-t-butyl peroxide, 2,5-bis(t-butylperoxy)-2,5-dimethylhexane, 2,5-bis(t-butylperoxy)-2,5-dimethylhexane-3, 1,1-bis(t-butylperoxy)3,3,5-trimethylcyclohexane, isopropylcumyl peroxide, butyl 4,4-di(tert-butylperoxy)valerate, di(isopropylcumyl) peroxide, 3,6,9-triethyl-3,6,9-trimethyl-1,4,7-triperoxonane, and mixtures of two or more of these.

[0040] additives The composition of the present invention may contain one or more additives. Additives include one or more alkoxylsilane coupling agents, e.g., vinyltrimethoxysilane (VTMS) or 3-(trimethoxysilyl)-propyl methacrylate (VMMS) or a combination of alkoxylsilane coupling agents; tetraethoxylsilane (TEOS) (or pre-hydrolysis products); crosslinking aids, e.g., triallyl isocyanurate (TAIC), triallyl cyanurate (TAC), triallyl trimellitate (TATM), trimethylolpropane triacylate (TMPTA), trimethylolpropane trimethylacrylate (TMPTMA), 1,6-hexanediol diacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, tris(2-hydroxyethyl) isocyanurate triacrylate, trivinylcyclohexane (trivinyl cyclohexane (TVCH), and alkenyl-functional monocyclic organosiloxanes (e.g., monocyclic organosiloxane of formula [R1,R2SiO2 / 2]n, where the subscript n is an integer of 3 or more, and each R1 is independently (C2~C4)alkenyl or H2C=C(R1a)-C(=O)-O-( Monocyclic organosiloxanes, which are CH2)m-, where R1a is H or methyl, the subscript m is an integer from 1 to 4, and each R2 is independently H, (C1-C4)alkyl, phenyl, or R1; for example, 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane, 2,4,6-trimethyl-2,4,6-trivinylcyclotrisiloxane, or combinations thereof).

[0041] Additional additives include, but are not limited to, UV absorbers and / or stabilizers, such as TINUVIN 770; one or more antioxidants; processing aids, such as fluoropolymers, polydimethylsiloxane (PDMS), ultra-high molecular weight PDMS; ion scavengers, anti-PID agents; fumed silica, nano-Al2O3, nano-clay, and one or more other fillers.

[0042] definition Unless otherwise stated, implied in the context, or customary in the art, all parts and percentages are based on weight, and all test methods are current as of the filing date of this disclosure.

[0043] As used herein, the term “composition” includes a composition, as well as mixtures of materials including reaction products and decomposition products formed from the materials of the composition. Any reaction products or decomposition products are typically present in trace or residual amounts.

[0044] As used herein, the term “polymer” refers to a polymer compound prepared by polymerizing the same or different types of monomers. Thus, the general term polymer includes the term homopolymer (used to refer to a polymer prepared from only one type of monomer, with the understanding that trace amounts of impurities may be incorporated into the polymer structure) and the term interpolymer, as defined herein below. Trace amounts of impurities, such as catalyst residues, may be incorporated into and / or within the polymer. Typically, polymers are stabilized with one or more stabilizers in very small amounts ("ppm") of them.

[0045] As used herein, the term “interpolymer” refers to a polymer prepared by the polymerization of at least two different types of monomers. Thus, the term interpolymer includes the term copolymer (used to refer to a polymer prepared from two different types of monomers) and polymers prepared from two or more different types of monomers.

[0046] As used herein, the term “olefinic polymer” means a polymer that, in its polymeric form, comprises 50% by weight or more than half by weight percent of an olefin such as ethylene or propylene (based on the weight of the polymer), and may optionally contain one or more comonomers.

[0047] As used herein, the term "polyolefin" means This refers to a polymer in which, in its polymerized form, contains 50% by weight or more than half by weight of an olefin such as ethylene or propylene (based on the weight of the polymer), and may optionally contain one or more comonomers.

[0048] As used herein, the term “propylene-based polymer” means a polymer that contains a majority by weight percent of propylene (based on the weight of the polymer) in its polymerized form and may optionally contain one or more comonomers.

[0049] As used herein, the term “ethylene-based polymer” means a polymer in its polymerized form that contains 50% by weight or more than half by weight of ethylene (based on the weight of the polymer) and may optionally contain one or more comonomers.

[0050] As used herein, the term “ethylene / alpha-olefin interpolymer” refers to an interpolymer comprising, in its polymerized form, 50% by weight or more than half by weight of ethylene and an alpha-olefin (based on the weight of the interpolymer). Preferably, the ethylene / alpha-olefin interpolymer is a random interpolymer (i.e., composed of its monomer components distributed randomly).

[0051] As used herein, the term "ethylene / alpha-olefin copolymer" refers to a copolymer in which, in its polymerized form, contains 50% by weight or more than half by weight of ethylene and alpha-olefin as only two monomer types (based on the weight of the copolymer). Preferably, the ethylene / alpha-olefin copolymer is a random copolymer (i.e., composed of its monomer components distributed randomly).

[0052] As used herein, the term "ethylene / alpha-olefin / non-conjugated polyene interpolymer" refers to an interpolymer comprising ethylene, alpha-olefin, and non-conjugated polyene in its polymerized form. In one embodiment, the "ethylene / alpha-olefin / non-conjugated polyene interpolymer" comprises 50% by weight or a majority by weight of ethylene (based on the weight of the interpolymer) in its polymerized form. As used herein, the term "ethylene / alpha-olefin / non-conjugated diene interpolymer" refers to an interpolymer comprising ethylene, alpha-olefin, and non-conjugated diene in its polymerized form. In one embodiment, the "ethylene / alpha-olefin / non-conjugated diene interpolymer" comprises 50% by weight or a majority by weight of ethylene (based on the weight of the interpolymer) in its polymerized form. It should be noted that the terms "ethylene / alpha-olefin / non-conjugated polyenotherpolymer" and "ethylene / alpha-olefin / non-conjugated dieneotherpolymer" are defined similarly, however, in each case, the terpolymer contains only three types of monomers in its polymerization form: ethylene, alpha-olefin, and polyene (or diene).

[0053] As used herein, the term “majority weight percent” refers to the amount of the most abundant monomer in a polymer (or interpolymer, terpolymer, or copolymer).

[0054] As used herein, the terms "hydrocarbon group," "hydrocarbyl group," and similar terms refer to chemical groups containing only carbon atoms and hydrogen atoms.

[0055] As used herein, the term "crosslinked composition" refers to a composition having a network structure due to the formation of chemical bonds between polymer chains. The degree of this network structure formation is indicated by an increase in the "MH-ML" difference. See Tables 6 to 12 below.

[0056] As used herein, the terms “apply heat,” “heat treat,” and “heat treatment,” and similar terms, refer to heating a composition with respect to compositions comprising elastomers or olefin polymers having a density greater than 0.920 g / cc as considered above. Heat may be applied by electrical means (e.g., a heating coil). It should be noted that the temperature at which the heat treatment is performed refers to the temperature of the composition (e.g., the curing temperature of the composition).

[0057] As used herein, the terms “apply radiation,” “radiate,” “radiate,” and “radiate treatment,” and similar terms, refer to the application of radiation (e.g., high-energy electron beam, or UV) to a composition comprising an elastomer or olefin polymer having a density greater than 0.920 g / cc as considered above.

[0058] As used herein, the terms “heat treatment,” “heat treatment,” and similar terms refer to raising the temperature of a composition comprising an elastomer or olefin polymer having a density greater than 0.920 g / cc, as considered above, by the application of heat, radiation, or other means (e.g., chemical reaction), and preferably by the application of heat. It should be noted that the temperature at which the heat treatment is performed refers to the temperature of the composition (e.g., the curing temperature of the composition).

[0059] As used herein, the term “siloxane group” and similar terms refer to a chemical group or part containing at least one “-Si-O-Si-” (siloxane) bond.

[0060] As used herein, the term “crosslinking agent” refers to a compound that reacts with polymer chains to form chemical bonds between them.

[0061] The terms “comprising,” “including,” and “having,” and their derivatives, are not intended to exclude the existence of any additional components, processes, or procedures, whether or not they are specifically disclosed. To avoid doubt, all compositions claimed through the use of the term “comprising” may include any additional additives, adjuvants, or compounds, whether polymers or otherwise, unless otherwise stated. In contrast, the term “essentially consisting of” excludes any other components, processes, or procedures that are not essential to the operability and excludes any other components, processes, or procedures from the scope of any subsequent detail. The term “consisting of” excludes any components, processes, or procedures that are not specifically specified or enumerated.

[0062] List of several processes and compositions A) A process for forming a crosslinked composition, wherein the process comprises at least the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A molecule containing at least one Si-H group, c) at least one peroxide, d) A process comprising applying heat and optionally radiation to a composition comprising, optionally, at least one crosslinking agent different from component b. B] A process for forming a crosslinked composition, wherein the process comprises the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A process comprising applying radiation and optionally heat to a composition comprising a molecule containing at least one Si-H group. C] Component a is 0.25 / 1000C or higher, or 0.30 / 1000C or higher, or 0.35 / 1000C or higher, or 0.40 / 1000C or higher, or 0.45 / 1000C or higher, or 0.50 / 1000C or higher, or 0.55 / 1000C or higher, or 0.60 / 1000C or higher, or 0.65 / 1000C or higher, or 0.70 / 1000C or higher, or 0.75 / 1000C or higher, or 0 The process described in A] or B] above, having a total degree of unsaturation of 0.80 / 1000C or more, or 0.85 / 1000C or more, or 0.90 / 1000C or more, or 0.95 / 1000C or more, or 1.00 / 1000C or more, and / or 15.0 / 1000C or less, or 10.0 / 1000C or less, or 5.00 / 1000C or less, or 2.00 / 1000C or less, or 1.50 / 1000C or less. D] The process according to any one of A] to C] above, wherein component a is an elastomer. E] The elastomer (component a) is 0.860 or more, or 0.862 or more, or 0.864 or more, or 0.866 or more, or 0.868 or more, or 0.870 g / cc or more (1 cc = 1 cm 3 A process according to any one of A] to D] above, having a density of ). F) The process according to any one of A] to E] above, wherein the elastomer (component a) has a density of 0.920 or less, or 0.915 or less, or 0.910 or less, or 0.905 or less, or 0.900 or less, or 0.895 or less, or 0.890 or less, or 0.885 or less, or 0.880 g / cc or less. G] Elastomer, formula A 1 L 1 L 2 A 2 Telechelic polyolefin, formula A 1 L 1 The process according to any one of A] to F] above, selected from unsaturated polyolefins, ethylene / alpha-olefin / non-conjugated polyene interpolymers, or ethylene / alpha-olefin interpolymers. H] Elastomer, Formula A 1 L 1 L 2 A 2 is a telechelic polyolefin, wherein L 1 is an ethylene polymer, further an ethylene / alpha-olefin interpolymer, and further a telechelic ethylene / alpha-olefin copolymer, the process according to any one of A] to G] above. I] The alpha-olefin is C3 to C 20 alpha-olefin, further C3 to C 10 alpha-olefin, and further propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, further 1-octene, the process according to H] above. J] Formula A 1 L 1 L 2 A 2 The telechelic polyolefin has a melt index (I2) of 0.5 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more, or 12 dg / min or more, or 15 dg / min or more, or 18 dg / min or more, or 20 dg / min or more, the process according to H] or I] above. K] Formula A 1 L 1 L 2 A 2 The telechelic polyolefin has a melt index (I2) of 100 dg / min or less, or 90 dg / min or less, or 80 dg / min or less, or 70 dg / min or less, or 60 dg / min or less, or 50 dg / min or less, or 40 dg / min or less, or 35 dg / min or less, the process according to any one of H] to J] above. L] The elastomer is an unsaturated polyolefin of Formula A 1 L 1 wherein L 1 is an ethylene polymer, further an ethylene / alpha-olefin interpolymer, and further an ethylene / alpha-olefin copolymer, the process according to any one of A] to G] above. M] Alpha-olefins, C3~C 20 Alpha-olefins, and further C3~C 10 The process according to L] above, further comprising alpha-olefin, and further propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, and further 1-octene. N] Formula A 1 L 1 The process according to L] or M] above, wherein the unsaturated polyolefin has a melt index (I2) of 0.5 dg / min or more, or 0.8 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more. O] Formula A 1 L 1 The process according to any one of L] to N] above, wherein the unsaturated polyolefin has a melt index (I2) of 100 dg / min or less, or 90 dg / min or less, or 80 dg / min or less, or 70 dg / min or less, or 60 dg / min or less, or 50 dg / min or less, or 40 dg / min or less. The process according to any one of A) to G) above, wherein the elastomer is an ethylene / alpha-olefin / non-conjugated polyene interpolymer, further an ethylene / alpha-olefin / non-conjugated diene interpolymer, and further an ethylene / alpha-olefin / non-conjugated diene interpolymer, and further EPDM. Q) The process according to P) above, wherein the ethylene / alpha-olefin / non-conjugated polyene interpolymer has a Mooney viscosity (ML1+4, 125℃) of 5.0 or more, or 10 or more, or 12 or more, or 14 or more, or 16 or more, or 18 or more. The process according to P] or Q] above, wherein the ethylene / alpha-olefin / non-conjugated polyene interpolymer has a Mooney viscosity (ML1+4, 125℃) of 50 or less, or 40 or less, or 35 or less, or 30 or less, or 25 or less, or 22 or less, or 20 or less. S) The process according to any one of A) to G) above, wherein the elastomer is an ethylene / alpha-olefin interpolymer and further an ethylene / alpha-olefin copolymer. T] Alpha-olefins, C3~C 20 Alpha-olefins, and further C3~C 10 The process described in S above, wherein the alpha-olefin is further propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, and further 1-octene. The process according to S] or T] above, wherein the ethylene / alpha-olefin interpolymer has a melt index (I2) of 0.5 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more, or 15 dg / min or more, or 20 dg / min or more. V) The process according to any one of S] to U] above, wherein the ethylene / olefin interpolymer has a melt index (I2) of 100 dg / min or less, or 90 dg / min or less, or 80 dg / min or less, or 75 dg / min or less, or 70 dg / min or less, or 65 dg / min or less, or 60 dg / min or less, or 55 dg / min or less, or 50 dg / min or less, or 45 dg / min or less, or 40 dg / min or less, or 35 dg / min or less, or 30 dg / min or less. The process according to any one of A] to C] above, wherein component a is an olefin polymer having a density greater than 0.920 g / cc, further an ethylene polymer, further an ethylene / alpha-olefin interpolymer, and further an ethylene / alpha-olefin copolymer. X] Alpha-olefins, C3~C 20 Alpha-olefins, and further C3~C 10 The process described in W above, wherein the alpha-olefin is further propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, and further 1-octene. Y] Olefin polymer (component a) is present in an amount of 0.925 or more, or 0.930 or more, or 0.935 or more, or 0.940 g / cc or more (1 cc = 1 cm³) 3 The process described above in W] or X], having a density of ). Z] The process according to any one of W] to Y] above, wherein the olefin polymer (component a) has a density of 0.960 or less, or 0.955 or less, or 0.950 or less, or 0.945 g / cc or less. A2] The process according to any one of W] to Z] above, wherein the olefin polymer has a melt index (I2) of 0.5 dg / min or more, or 0.8 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more. B2] The process according to any one of W] to A2] above, wherein the olefin polymer has a melt index (I2) of 100 dg / min or less, or 90 dg / min or less, or 80 dg / min or less, or 70 dg / min or less, or 60 dg / min or less, or 50 dg / min or less, or 40 dg / min or less. C2] The process according to any one of A] to B2] above, wherein component b contains two or more or three or more Si-H groups. D2] The process according to any one of A] to C2] above, wherein component b comprises one or more, two or more, or three or more siloxane groups (-Si-O-Si-). E2] Component b is, -CR 1 =Contains CH2 groups, in the formula, R 1 The process described in any one of A] to D] above, wherein the component is H or alkyl. F2] Component b is, A process according to any one of A) to E2) above, which does not contain a carbonyl group [-C(O)-] or a carboxyl group [-C(O)O-]. G2] The process according to any one of A] to F2] above, wherein the silicon of SiH in component b is bonded to at least one alkyl group (R). The process according to any one of A] to G2] above, wherein the silicon of SiH in component b is bonded to at least one alkoxyl group (RO), and in the formula R = alkyl. I2] The process according to any one of A] to H2] above, wherein the silicon of SiH in component b is bonded to at least one Si-O group. J2] The process according to any one of A] to I2] above, wherein component b comprises an alkoxylsilane (RO-Si) group in addition to at least one Si-H group, where R = alkyl in the formula. K2] The process according to any one of A] to J2] above, wherein component b contains one or more double bonds. L2] The process according to any one of A] to K2] above, wherein component b contains 20% by weight or more, or 22% by weight or more, or 24% by weight or more, or 26% by weight or more, or 28% by weight or more, or 30% by weight or more, or 32% by weight or more of Si, based on the weight of the molecule. The process according to any one of A] to L2] above, wherein component b contains Si in an amount of 60% by weight or less, or 55% by weight or less, or 50% by weight or less, or 48% by weight or less, or 46% by weight or less, or 44% by weight or less, or 42% by weight or less, based on the weight of the molecule. The process according to any one of A] to M2] above, wherein component b has a weight ratio of Si to O of 1.0 or more, or 1.2 or more, or 1.5 or more, or 2.0 or more, or 2.2 or more, or 2.4 or more, or 2.6 or more, or 3.0 or more. The process according to any one of A] to N2] above, wherein component b has a weight ratio of Si to O of 5.0 or less, or 4.8 or less, or 4.6 or less, or 4.4 or less, or 4.2 or less, or 4.0 or less, or 3.8 or less, based on the weight of the molecule. P2] Component b is dimethylhydrogensiloxy-modified silica (e.g., CAS: 102262-28-2), hydride-modified silica Q resin (e.g., HQM-105 (CAS: 68988-57-8), trimethyl-terminated dimethyl-co-hydrogen methylpolysiloxane (e.g., CAS: 68037-59-2), tris(dimethyl-silyloxy)-phenylsilane (e.g., CAS: 18027-45-7), methyltris(dimethyl-siloxy)silane (e.g., CAS: 17082-46-1), 1,3,5,7-tetramethyl 2-Cyclotetrasiloxane (e.g., CAS: 2370-88-9), tetrakis(dimethylsiloxy)silane (e.g., CAS: 17082-47-2), 1,1,3,3,5,5-Hexamethyltrisiloxane (e.g., CAS: 1189-93-1), 1,1,3,3-Tetramethyldisiloxane (CAS: 3277-26-7), Phenylsilsesquioxane, Hydrogen-terminated (e.g., CAS: 68952-30-7), 1,1,1,3,5,5,5-Heptamethyltrisiloxane, 1,1,3,3-Tetramethyldi From siloxane, 3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane, triethoxysilane, or 1-(2-(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane, or SiH-terminated PDMS, and further from 1,1,1,3,5,5,5-heptamethyltrisiloxane, 1,1,3,3-tetramethyldisiloxane, 3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane, triethoxysilane, or 1-(2 The process according to any one of A] to O2] above, further selected from -(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane or SiH-terminated PDMS, and 3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane, triethoxysilane, or 1-(2-(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane. Q2] The process described in any one of A] to O2] above, wherein component b is selected from the structures (s1) to (s16) shown above. R2] The process according to any one of A] to Q2] above, wherein the composition is heat-treated at a temperature of 120°C or higher, or 130°C or higher, or 140°C or higher, or 150°C or higher. S2] The process according to any one of A] to R2] above, wherein the composition is heat-treated at a temperature of 200°C or lower, or 190°C or lower, or 180°C or lower, or 170°C or lower, or 160°C or lower. The process described in any one of A] to S2] above, wherein the composition has a T90 reduction rate of 2.0% or more, or 5.0% or more, or 6.0% or more, or 7.0% or more, or 8.0% or more, or 9.0% or more, or 10% or more, or 12% or more, or 14% or more, or 16% or more, compared to a "similar composition" that does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition. See, for example, Table 10 (Comparison G and Inventions 14 to 16). The process according to any one of A] to T2] above, wherein the composition has a reduction rate of T90 of 50% or less, or 45% or less, or 40% or less, or 35% or less, or 30% or less, or 28% or less, or 26% or less, compared to a "similar composition" that does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition. V2] The process according to any one of A] to U2] above, wherein the composition has an increase in MH of 2.0% or more, or 3.0% or more, or 4.0% or more, or 5.0% or more, or 6.0% or more, or 8.0% or more, or 10% or more, or 15% or more, or 20% or more, or 25% or more, or 30% or more, or 35% or more, or 40% or more, or 45% or more, or 50% or more, or 60% or more, or 70% or more, or 80% or more, or 90% or more, or 100% or more, compared to a "similar composition" that does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition. The process according to any one of A] to V2] above, wherein the composition has an increase in MH of 300% or less, or 280% or less, or 260% or less, or 240% or less, or 220% or less, compared to a "similar composition" that does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition. A crosslinked composition formed from any one of the processes described in X2] A] to W2]. A3] A composition comprising at least the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, Component a is an elastomer or olefin polymer having a total unsaturation degree of 0.20 / 1000C or higher, b) A molecule containing at least one Si-H group, c) at least one peroxide, d) A composition comprising, optionally, at least one crosslinking agent different from component b. B3] A composition comprising at least the following components a and b: a) An elastomer having a total unsaturation degree of 0.20 / 1000C or higher, or an olefin polymer having a density greater than 0.920 g / cc and a total unsaturation degree of 0.20 / 1000C or higher, wherein the elastomer is i) Formula A 1 L 1 L 2 A 2 Telechelic polyolefins, ii) Ethylene / alpha-olefin / non-conjugated polyene interpolymer having a Mooney viscosity of 5-30 (ML1+4, 125℃), iii) Ethylene / alpha-olefin copolymer, or iv) Equation A 1 L 1 An elastomer or olefin-based polymer selected from unsaturated polyolefins, b) A composition comprising a molecule containing at least one Si-H group. C3] Component a is 0.25 / 1000C or higher, or 0.30 / 1000C or higher, or 0.35 / 1000C or higher, or 0.40 / 1000C or higher, or 0.45 / 1000C or higher, or 0.50 / 1000C or higher, or 0.55 / 1000C or higher, or 0.60 / 1000C or higher, or 0.65 / 1000C or higher, or 0.70 / 1000C or higher, or 0.75 / 1000C or higher, or 0.80 The composition described in A3] or B3] above, having a total degree of unsaturation of 1 / 1000C or more, or 0.85 / 1000C or more, or 0.90 / 1000C or more, or 0.95 / 1000C or more, or 1.00 / 1000C or more, and / or 15.0 / 1000C or less, or 10.0 / 1000C or less, or 5.00 / 1000C or less, or 2.00 / 1000C or less, or 1.50 / 1000C or less. D3] The composition according to any one of A3] to C3] above, wherein component a is an elastomer. E3] Elastomer (component a) is 0.860 or higher, or 0.862 or higher, or 0.864 or higher, or 0.866 or higher, or 0.868 or higher, or 0.870 g / cc or higher (1 cc = 1 cm³) 3 A composition according to any one of the above A3 to D3, having a density of ). F3] The composition according to any one of A3] to E3] above, wherein the elastomer (component a) has a density of 0.920 or less, or 0.915 or less, or 0.910 or less, or 0.905 or less, or 0.900 or less, or 0.895 or less, or 0.890 or less, or 0.885 or less, or 0.880 g / cc or less. G3] Elastomer, Formula A 1 L 1 L 2 A 2 Telechelic polyolefin, formula A 1 L 1 A composition according to any one of the above A3] to F3], selected from unsaturated polyolefins, ethylene / alpha-olefin / non-conjugated polyene interpolymers, or ethylene / alpha-olefin interpolymers. H3] Elastomer, A1 L 1 L 2 A 2 It is a telechelic polyolefin, in which L 1 The composition is one of the above A3] to G3], wherein the composition is an ethylene-based polymer, further an ethylene / alpha-olefin interpolymer, and further a telechelic ethylene / alpha-olefin copolymer. I3] Alpha-olefins, C3~C 20 Alpha-olefins, and further C3~C 10 The composition according to H3] above, wherein the composition further comprises alpha-olefin, and propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, and further 1-octene. J3] Formula A 1 L 1 L 2 A 2 The composition according to H3] or I3] above, wherein the telechelic polyolefin has a melt index (I2) of 0.5 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more, or 12 dg / min or more, or 15 dg / min or more, or 18 dg / min or more, or 20 dg / min or more. K3] Formula A 1 L 1 L 2 A 2 The composition according to any one of the above H3 to J3, wherein the telechelic polyolefin has a melt index (I2) of 100 dg / min or less, or 90 dg / min or less, or 80 dg / min or less, or 70 dg / min or less, or 60 dg / min or less, or 50 dg / min or less, or 40 dg / min or less, or 35 dg / min or less. L3] Elastomer, Formula A 1 L 1 It is an unsaturated polyolefin, in which L 1 The composition is one of the above A3] to G3], wherein the polymer is an ethylene-based polymer, further an ethylene / alpha-olefin interpolymer, and further an ethylene / alpha-olefin copolymer. [M3] Alpha-olefins, C3~C 20 Alpha-olefins, and further C3~C 10 The composition according to L3] above, further comprising alpha-olefin, and further propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, and further 1-octene. N3] Formula A 1 L 1 The composition according to L3] or M3] above, wherein the unsaturated polyolefin has a melt index (I2) of 0.5 dg / min or more, or 0.8 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more. O3] Formula A 1 L 1 The composition according to any one of the above L3] to N3], wherein the unsaturated polyolefin has a melt index (I2) of 100 dg / min or less, or 90 dg / min or less, or 80 dg / min or less, or 70 dg / min or less, or 60 dg / min or less, or 50 dg / min or less, or 40 dg / min or less. P3] The composition according to any one of A3] to G3] or B3] to G3] above, wherein the elastomer is an ethylene / alpha-olefin / non-conjugated polyene interpolymer, further an ethylene / alpha-olefin / non-conjugated diene interpolymer, further an ethylene / alpha-olefin / non-conjugated diene interpolymer, and further EPDM. Q3] The composition according to P3] above, wherein the ethylene / alpha-olefin / non-conjugated polyene interpolymer has a Mooney viscosity (ML1+4, 125℃) of 5 or more, or 10 or more, or 12 or more, or 14 or more, or 16 or more, or 18 or more. The composition according to P3] or Q3] above, wherein the ethylene / alpha-olefin / non-conjugated polyene interpolymer has a Mooney viscosity (ML1+4, 125℃) of 50 or less, or 40 or less, or 35 or less, or 30 or less, or 25 or less, or 22 or less, or 20 or less. S3] The composition according to any one of P3] or Q3], wherein the ethylene / alpha-olefin / non-conjugated polyene interpolymer has a Mooney viscosity (ML1+4, 125℃) of 30 or less, or 25 or less, or 20 or less. The composition according to any one of A3] to G3] above, wherein the elastomer is an ethylene / alpha-olefin interpolymer and further an ethylene / alpha-olefin copolymer. U3] Alpha-olefins, C3~C 20 Alpha-olefins, and further C3~C 10 The composition according to T3] above, comprising alpha-olefin, and further propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, and further 1-octene. V3] The composition according to T3] or U3] above, wherein the ethylene / alpha-olefin interpolymer has a melt index (I2) of 0.5 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more, or 15 dg / min or more, or 20 dg / min or more. W3] The composition according to any one of T3] to V3] above, wherein the ethylene / olefin interpolymer has a melt index (I2) of 100 dg / min or less, or 90 dg / min or less, or 80 dg / min or less, or 75 dg / min or less, or 70 dg / min or less, or 65 dg / min or less, or 60 dg / min or less, or 55 dg / min or less, or 50 dg / min or less, or 45 dg / min or less, or 40 dg / min or less, or 35 dg / min or less, or 30 dg / min or less. X3] The composition according to any one of A3] to C3] above, wherein component a is an olefin polymer having a density greater than 0.920 g / cc, further an ethylene polymer, further an ethylene / alpha-olefin interpolymer, and further an ethylene / alpha-olefin copolymer. [Y3] Alpha-olefin, C3~C 20 Alpha-olefins, and further C3~C 10The composition according to X3] above, further comprising alpha-olefin, and propylene, 1-butene, 1-hexene, or 1-octene, further propylene, 1-butene, or 1-octene, further 1-butene or 1-octene, and further 1-octene. Z3] The olefin polymer (component a) is present in an amount of 0.925 or more, or 0.930 or more, or 0.935 or more, or 0.940 g / cc or more (1 cc = 1 cm³). 3 The composition according to X3] or Y3] above, having a density of ). A4] The composition according to any one of X3] to Z3] above, wherein the olefin polymer (component a) has a density of 0.960 or less, or 0.955 or less, or 0.950 or less, or 0.945 g / cc or less. B4] The composition according to any one of X3] to A4] above, wherein the olefin polymer has a melt index (I2) of 0.5 dg / min or more, or 0.8 dg / min or more, or 1.0 dg / min or more, or 2.0 dg / min or more, or 5.0 dg / min or more, or 10 dg / min or more. C4] The composition according to any one of X3] to B4] above, wherein the olefin polymer has a melt index (I2) of 100 dg / min or less, 90 dg / min or less, 80 dg / min or less, 70 dg / min or less, 60 dg / min or less, 50 dg / min or less, or 40 dg / min or less. D4] The composition according to any one of A3] to C4] above, wherein component b contains two or more or three or more Si-H groups. E4] The composition according to any one of A3] to D4] above, wherein component b contains one or more, or two or more, or three or more siloxane groups (-Si-O-Si-). F4] Component b is, -CR 1 =Contains CH2 groups, in the formula, R 1 However, it is H or alkyl. The composition described in any one of the above A3 to E4. G4] A composition according to any one of A3] to F4] above, wherein component b does not contain a carbonyl group [-C(O)-] or a carboxyl group [-C(O)O-]. The composition according to any one of A3] to G4] above, wherein the silicon of SiH in component b is bonded to at least one alkyl group (R). I4] The composition according to any one of A3] to H4] above, wherein the silicon of SiH in component b is bonded to at least one alkoxyl group (RO), and in the formula R = alkyl. J4] The composition according to any one of A3] to I4] above, wherein the silicon of SiH in component b is bonded to at least one Si-O group. K4] The composition according to any one of A3] to J4] above, wherein component b comprises an alkoxylsilane (RO-Si) group in addition to at least one Si-H group, where R = alkyl in the formula. L4] The composition according to any one of A3] to K4] above, wherein component b contains one or more double bonds. M4] The composition according to any one of A3] to L4] above, wherein component b contains 20% by weight or more, or 22% by weight or more, or 24% by weight or more, or 26% by weight or more, or 28% by weight or more, or 30% by weight or more, or 32% by weight or more of Si, based on the weight of the molecule. N4] The composition according to any one of A3] to M4] above, wherein component b contains 60% by weight or less, or 55% by weight or less, or 50% by weight or less, or 48% by weight or less, or 46% by weight or less, or 44% by weight or less, or 42% by weight or less of Si, based on the weight of the molecule. The composition according to any one of A3] to N4] above, wherein component b has a weight ratio of Si to O of 1.0 or more, or 1.2 or more, or 1.5 or more, or 2.0 or more, or 2.2 or more, or 2.4 or more, or 2.6 or more, or 3.0 or more. P4] The composition according to any one of A3] to O4] above, wherein component b has a weight ratio of Si to O of 5.0 or less, or 4.8 or less, or 4.6 or less, or 4.4 or less, or 4.2 or less, or 4.0 or less, or 3.8 or less, based on the weight of the molecule. Q4] Component b is dimethylhydrogensiloxy-modified silica (e.g., CAS: 102262-28-2), hydride-modified silica Q resin (e.g., HQM-105 (CAS: 68988-57-8), trimethyl-terminated dimethyl-co-hydrogen methylpolysiloxane (e.g., CAS: 68037-59-2), tris(dimethyl-silyloxy)-phenylsilane (e.g., CAS: 18027-45-7), methyltris(dimethyl-siloxy)silane (e.g., CAS: 17082-46-1), 1,3,5,7-tetramethyl 2-Cyclotetrasiloxane (e.g., CAS: 2370-88-9), tetrakis(dimethylsiloxy)silane (e.g., CAS: 17082-47-2), 1,1,3,3,5,5-Hexamethyltrisiloxane (e.g., CAS: 1189-93-1), 1,1,3,3-Tetramethyldisiloxane (CAS: 3277-26-7), Phenylsilsesquioxane, Hydrogen-terminated (e.g., CAS: 68952-30-7), 1,1,1,3,5,5,5-Heptamethyltrisiloxane, 1,1,3,3-Tetramethyldi From siloxane, 3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane, triethoxysilane, or 1-(2-(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane, or SiH-terminated PDMS, and further from 1,1,1,3,5,5,5-heptamethyltrisiloxane, 1,1,3,3-tetramethyldisiloxane, 3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane, triethoxysilane, or 1-(2 A composition according to any one of A3] to P4] above, further selected from -(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane or SiH-terminated PDMS, and 1,1,1,3,5,5,5-heptamethyltrisiloxane, 1,1,3,3-tetramethyldisiloxane, 3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane, triethoxysilane, or 1-(2-(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane. R4] The composition according to any one of A3] to P4] above, wherein component b is selected from the structures (s1) to (s16) shown above. S4] The composition according to any one of A3] to R4] above, wherein the composition has a T90 reduction rate of 2.0% or more, or 5.0% or more, or 6.0% or more, or 7.0% or more, or 8.0% or more, or 9.0% or more, or 10% or more, or 12% or more, or 14% or more, or 16% or more, compared to a "similar composition" that does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition. The composition according to any one of A3] to S4] above, wherein the composition has a reduction rate of T90 of 50% or less, or 45% or less, or 40% or less, or 35% or less, or 30% or less, or 28% or less, or 26% or less, compared to a "similar composition" that does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition. U4] The composition according to any one of A3] to T4] above, wherein the composition has an increase in MH of 2.0% or more, or 3.0% or more, or 4.0% or more, or 5.0% or more, or 6.0% or more, or 8.0% or more, or 10% or more, or 15% or more, or 20% or more, 25% or more, or 30% or more, or 35% or more, or 40% or more, or 45% or more, or 50% or more, or 60% or more, or 70% or more, or 80% or more, or 90% or more, or 100% or more, compared to a "similar composition" that does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition. V4] The composition according to any one of A3] to U4] above, wherein the composition does not contain component b but contains a weight increase of component a equal to the amount of component b in the composition, the MH increase rate being 300% or less, 280% or less, 260% or less, 240% or less, or 220% or less. W4] A composition comprising 90.0% by weight or more, or 92.0% by weight or more, or 94.0% by weight or more, or 96.0% by weight or more, or 97.0% by weight or more, or 98.0% by weight or more of component a, based on the weight of the composition, according to the process described in any one of A] to W2] above, or according to any one of A3] to V4] above. X4] A composition comprising component a in any one of A] to W2] or W4] above, based on the weight of the composition, in an amount of 100.0% by weight or less, or 99.8% by weight or less, or 99.6% by weight or less, or 99.4% by weight or less, or 99.2% by weight or less, or 99.0% by weight or less. The process described in any one of A] to W2] or W4] above, or the composition described in any one of A3] to W4] above. Y4] A process according to any one of A] to W2] or W4] or X4] above, wherein the weight ratio of component a to component b is 10 or more, or 12 or more, or 14 or more, or 16 or more, or 18 or more, or 20 or more, or 25 or more, or 30 or more. Z4] A process according to any one of A]~W2] or W4]~Y4] above, or a composition according to any one of A3]~Y4] above, wherein the weight ratio of component a to component b is 2000 or less, or 1800 or less, or 1600 or less, or 1400 or less, or 1200 or less, or 1000 or less, or 800 or less, or 600 or less, or 400 or less, or 200 or less, or 100 or less, or 50 or less. A5] A composition comprising, based on the weight of the composition, 0.02% by weight or more, or 0.05% by weight or more, or 0.06% by weight or more, or 0.07% by weight or more, or 0.08% by weight or more, or 0.10% by weight or more, or 0.12% by weight or more, or 0.14% by weight or more, or 0.16% by weight or more, or 0.18% by weight or more, or 0.20% by weight or more of component b, the process described in any one of A] to W2] or W4] to Z4] above, or the composition described in any one of A3] to Z4] above. B5] A composition comprising component b in an amount of 5.0% by weight or less, or 4.5% by weight or less, or 4.0% by weight or less, 3.5% by weight or less, or 3.0% by weight or less, or 2.5% by weight or less, or 2.0% by weight or less, or 1.5% by weight or less, or 1.0% by weight or less, based on the weight of the composition, according to the process described in any one of A] to W2] or W4] to A5] above, or according to any one of A3] to A5] above. C5] A composition comprising component c, and further comprising 0.10% by weight or more, or 0.15% by weight or more, or 0.20% by weight or more, or 0.30% by weight or more, or 0.40% by weight or more, or 0.50% by weight or more, or 0.60% by weight or more, or 0.70% by weight or more of component c, based on the weight of the composition, according to the process described in any one of A] to W2] or W4] to B5] above, or according to any one of A3] to B5] above. Component c is described above. D5] A composition comprising component c, further comprising component c in an amount of 3.0% by weight or less, or 2.5% by weight or less, or 2.0% by weight or less, or 1.9% by weight or less, or 1.8% by weight, 1.7% by weight or less, or 1.6% by weight or less, or 1.5% by weight or less, or 1.4% by weight or less, or 1.2% by weight or less, based on the weight of the composition, the process described in any one of A] to W2] or W4] to C5] above, or the composition described in any one of A3] to C5] above. E5] A composition comprising component d, further comprising 0.10% by weight or more, or 0.15% by weight or more, or 0.20% by weight or more of component d based on the weight of the composition, according to the process described in any one of A] to W2] or W4] to D5] above, or according to any one of A3] to D5] above. Component d is described above. F5] A composition comprising component d, further comprising component d in an amount of 1.0% by weight or less, or 0.8% by weight or less, or 0.6% by weight or less, based on the weight of the composition, according to the process described in any one of A] to W2] or W4] to E5] above, or according to any one of A3] to E5] above. G5] A process according to any one of A] to W2] or W4] to F5] above, or a composition according to any one of A3] to F5] above, wherein the composition comprises component c, and further, the weight ratio of component c to component b is 0.10 or more, or 0.20 or more, or 0.40 or more, or 0.60 or more, or 0.80 or more, or 1.00 or more, or 1.20 or more. H5] A process according to any one of A] to W2] or W4] to G5] above, or a composition according to any one of A3] to G5] above, wherein the composition comprises component c, and further, the weight ratio of component c to component b is 50 or less, or 45 or less, or 40 or less, or 35 or less, or 30 or less, or 25 or less, or 20 or less, or 15 or less, or 10 or less, or 8.0 or less. I5] A process according to any one of A] to W2] or W4] to H5] above, wherein the composition comprises component c, and further, the weight ratio of component a to component c is 10 or more, or 15 or more, or 20 or more, or 25 or more, or 30 or more, or 35 or more, or 40 or more, or 45 or more. J5] A process according to any one of A] to W2] or W4] to I5] above, wherein the composition comprises component c, and further the weight ratio of component a to component c is 600 or less, or 500 or less, or 400 or less, or 300 or less, or 200 or less, or 180 or less, or 160 or less, or 140 or less, or 120 or less, or 100 or less. K5] A process according to any one of A] to W2] or W4] to J5] above, or a composition according to any one of A3] to J5] above, wherein the composition comprises component c and component d, and further, the weight ratio of component c to component d is 0.10 or more, or 0.15 or more, or 0.20 or more, or 0.25 or more, or 0.30 or more, or 0.35 or more, or 0.40 or more, or 0.45 or more, or 0.50 or more, or 0.60 or more, or 0.70 or more, or 0.80 or more, or 0.90 or more, or 1.0 or more. L5] A process according to any one of A] to W2] or W4] to K5] above, or a composition according to any one of A3] to K5] above, wherein the composition comprises component c and component d, and further, the weight ratio of component c to component d is 20 or less, or 15 or less, or 10 or less, or 8.0 or less, or 6.0 or less, or 4.0 or less, or 2.0 or less. M5] A composition comprising the sum of components a and b in any one of the above A]~W2] or W4]~L5], based on the weight of the composition, in an amount of 10.0% or more by weight, or 20.0% or more by weight, or 30.0% or more by weight, or 40.0% or more by weight, or 50.0% or more by weight, or 60.0% or more by weight, or 70.0% or more by weight, or 80.0% or more by weight, or 90.0% or more by weight, according to the process described in any one of the above A]~W2] or W4]~L5], or according to any one of the above A3]~L5]. N5] A composition comprising the sum of components a and b in any one of the above A]~W2] or W4]~M5], based on the weight of the composition, in an amount of 99.9% by weight or less, or 99.8% by weight or less, or 99.6% by weight or less, or 99.4% by weight or less, or 99.2% by weight or less, or 99.0% by weight or less, or 98.5% by weight or less, or 98.0% by weight or less, or 97.5% by weight or less, or 97.0% by weight or less, or 96.5% by weight or less, or 96.0% by weight or less. O5] A composition comprising component c, and further comprising the sum of components a, b, and c in an amount of 20.0% by weight or more, or 30.0% by weight or more, or 40.0% by weight or more, or 50.0% by weight or more, or 60.0% by weight or more, or 70.0% by weight or more, or 80.0% by weight or more, or 90.0% by weight or more, or 95.0% by weight or more, based on the weight of the composition, the process described in any one of A] to W2] or W4] to N5] above, or the composition described in any one of A3] to N5] above. P5] A composition comprising component c, and further comprising the sum of components a, b, and c in an amount of 100.0% by weight or less, or 99.5% by weight or less, or 99.0% by weight or less, or 98.5% by weight or less, or 98.0% by weight or less, or 97.5% by weight or less, or 97.0% by weight or less, or 96.5% by weight or less, or 96.0% by weight or less, or 95.5% by weight or less, or 95.0% by weight or less, based on the weight of the composition, the process described in any one of A] to W2] or W4] to O5] above, or the composition described in any one of A3] to O5] above. Q5] A composition having a [Mn × (total unsaturated / 1000C)] value of 5.0 kg / mol or more, or 10 kg / mol or more, or 11 kg / mol or more, or 12 kg / mol or more, 13 kg / mol or more, or 14 kg / mol or more, or 15 kg / mol or more, according to any one of the above A] to W2] or W4] to P5], or according to any one of the above A3] to P5]. R5] A composition having a [Mn × (total unsaturated / 1000C)] value of 50 kg / mol or less, or 48 kg / mol or less, or 45 kg / mol or less, or 43 kg / mol or less, or 40 kg / mol or less, or 38 kg / mol or less, or 35 kg / mol or less, or 33 kg / mol or less, or 30 kg / mol or less, or 28 kg / mol or less, or 25 kg / mol or less, or 23 kg / mol or less, according to the process described in any one of A] to W2] or W4] to Q5] above, or according to any one of A3] to Q5] above. S5] A process according to any one of A]~W2] or W4]~R5] above, or a composition according to any one of A3]~R5] above, wherein component a has a molecular weight distribution (MWD) (=Mw / Mn) of 1.80 or more, or 1.90 or more, or 2.00 or more, or 2.10 or more, or 2.15 or more, or 2.20 or more, or 2.25 or more, or 2.30 or more, and / or an MWD of 5.00 or less, or 4.80 or less, or 4.50 or less, or 4.30 or less, or 4.00 or less, or 4.00 or less, or 3.80 or less, or 3.60 or less, or 3.40 or less, or 3.20 or less, or 3.00 or less, or 2.80 or less. T5] Component a is 5,000 g / mol or more, or 8,000 g / mol or more, or 10,000 g / mol or more, or 12,000 g / mol or more, or 14,000 g / mol or more, or 16,000 g / mol or more, or 18,000 g / mol or more, or 20,000 g / mol or more, and / or 100,000 g / mol or less, or 90,000 g / mol or less, or 80,000 g / mol or less, Alternatively, a process according to any one of A]~W2] or W4]~S5] above, having a number average molecular weight Mn of 70,000 g / mol or less, or 65,000 g / mol or less, or 60,000 g / mol or less, or 55,000 g / mol or less, or 50,000 g / mol or less, or 45,000 g / mol or less, or 40,000 g / mol or less, or a composition according to any one of A3]~S5] above. U5] A process according to any one of A]~W2] or W4]~T5] above, or a composition according to any one of A3]~T5] above, wherein component a has a vinyl% of 2.0% or more, or 4.0% or more, or 6.0% or more, or 8.0% or more, or 10% or more, or 15% or more, or 20% or more, or 25% or more, or 30% or more, or 35% or more, or 40% or more, and / or 90% or less, or 85% or less, or 80% or less, or 78% or less, or 76% or less, or 74% or less, or 72% or less, or 70% or less, and vinyl% = [(vinyl / 1000C) / (total unsaturation / 1000C)] × 100. V5] Component a is 0.02 / 1000C or higher, or 0.04 / 1000C or higher, or 0.06 / 1000C or higher, or 0.08 / 1000C or higher, or 0.10 / 1000C or higher, or 0.12 / 1000C or higher, or 0.14 / 1000C or higher, or 0.16 / 1000C or higher, or 0.18 / 1000C or higher, or 0.20 / 1000C or higher, or 0.22 / 1000C or higher, and A process according to any one of A] to W2] or W4] to U5] above, or a composition according to any one of A3] to U5] above, having a vinyl content of 1.0 / 1000C or less, or 0.80 / 1000C or less, or 0.70 / 1000C or less, or 0.60 / 1000C or less, or 0.55 / 1000C or less, or 0.50 / 1000C or less, or 0.48 / 1000C or less. W5] Component a is 0.08 / 1000C or higher, or 0.10 / 1000C or higher, or 0.12 / 1000C or higher, or 0.14 / 1000C or higher, or 0.16 / 1000C or higher, or 0.18 / 1000C or higher, or 0.20 / 1000C or higher, or 0.22 / 1000C or higher, or 0.25 / 1000C or higher, or 0.27 / 1000C or higher, or 0.30 / 1000C or higher, or 0.32 / 1000C or higher, or 0.35 / 1000C or higher, or 0.37 / 1000C or higher, or 0.40 / 1000C or higher, or 0.42 / 1000C or higher, or 0.45 / 1000C or higher. A process according to any one of A]~W2] or W4]~V5] above, or a composition according to any one of A3]~V5] above, having a sum of vinyl and vinylidene content of the above, or 0.47 / 1000C or more, or 0.50 / 1000C or more, or 0.52 / 1000C or more, and / or 1.00 / 1000C or less, or 0.95 / 1000C or less, or 0.90 / 1000C or less, or 0.85 / 1000C or less, or 0.80 / 1000C or less, or 0.75 / 1000C or less, or 0.70 / 1000C or less, or 0.65 / 1000C or less. X5] A process according to any one of A]~W2] or W4]~W5] above, or a composition according to any one of A3]~W5] above, wherein component a has vinylidene% of 2.0% or more, or 4.0% or more, or 6.0% or more, or 8.0% or more, or 10% or more, or 12% or more, or 14% or more, or 16% or more, and / or 60% or less, or 50% or less, or 40% or less, or 35% or less, or 30% or less, or 28% or less, and vinylidene% = [(vinylidene / 1000C) / (total unsaturation / 1000C)] x 100. Y5] A crosslinked composition formed from any one of the compositions described in A3] to X5] above. Z5] A crosslinked composition formed from any one of the processes described in W4] to X5] above. A6) An article comprising at least one component formed from the composition described in any one of the above X2) or A3) to X5). B6] The article described in A6 above, wherein the article is a film or a foam and further a film. C6] The articles described in A6 above, wherein the articles are solar cell modules, wires or cables, footwear components, automotive parts, window frames, tires, tubes / hoses, or roofing films, and further solar cell modules, wires or cables, footwear components, automotive parts, and further solar cell modules. D6] The article as described in A6 above, wherein the article is a sealing film for a solar cell module. E6] The article according to A6] above, wherein the article is a solar cell module comprising a front transparent surface protective layer, a front cross-linked sealing film, a solar cell element, a back cross-linked sealing film, and a back transparent surface protective layer. F6 A lamination process for preparing a solar cell module, wherein the process includes crosslinking a film formed from any one of the compositions described in A3 to X5. G6] A process for forming a crosslinked composition, wherein the process includes heat-treating the composition described in any one of A3] to X5] above.

[0063] Test method MDR trial Curing properties were measured using an Alpha Technologies Moving Die Rheometer (MDR)2000, according to ASTM D5289, with a 0.5-degree arc on pellets stored in a bottle at room temperature (RT) for 24 hours after immersion. For each composition, approximately 4.5 g of pellets were loaded into the MDR. The MDR was run at 150°C for 25 minutes to generate a "time vs. torque" profile at a given interval. The following data were used for each MDR run: MH (dNm), i.e., the maximum torque exerted by the MDR during the 25-minute test interval (this typically corresponds to the torque exerted at 25 minutes); ML (dNm), i.e., the minimum torque exerted by the MDR during the 25-minute test interval (this typically corresponds to the torque exerted at the start of the test interval); and T90 (time required to reach 90% of the (MH-ML) value).

[0064] 1 H NMR method Sample Preparation: Each sample was prepared by adding approximately 130 mg of the sample to 50 / 50 wt tetrachloroethane-d2 / perchloroethylene (TCE-d2 / PCE) containing 3.25 g of 0.001 M Cr(AcAc)3 in a NORELL 1001-7, 10 mm NMR tube. The sample was purged by passing N2 through the solvent for approximately 5 minutes via a pipette inserted into the tube to prevent oxidation. The tube was then capped, sealed with Teflon tape, and heated and vortex-mixed at 115°C to obtain a homogeneous solution.

[0065] Data acquisition parameters and data analysis: Bruker AVANCE 600MHz spectrometer equipped with Bruker high-temperature cryoprobe, sample temperature 120°C. 11H NMR was performed. Two experiments were conducted to obtain spectra for quantifying total polymer protons and control spectra. A double pre-saturation experiment was performed to suppress strong peaks associated with polymer chains and enable a highly sensitive spectrum for quantifying end groups. This control was performed with a ZG pulse, 16 scans, AQ 1.82 sec, D1 (relaxation delay) 14 sec. The double pre-saturation experiment was performed with a modified pulse sequence, lc1prf2.zz, 64 scans, AQ 1.82 sec, D1 (pre-saturation time) 2 sec, D 13 The relaxation delay was 12 seconds. The degree of unsaturation was measured according to the following method: The resonance area from the polymer chain (i.e., CH, CH2, and CH3 in the polymer) was measured from the spectrum obtained during the first experiment (control spectrum) described above.

[0066] The degree of unsaturation was analyzed using the method described in Reference 3 below. Reference 1: Z. Zhou, R. Kuemmerle, JC Stevens, D. Redwine, Y. He, X. Qiu, R. Cong, J. Klosin, N. Montanez, G. Roof, Journal of Magnetic Resonance, 2009, 200, 328. Reference 2: Z. Zhou, R. Kummerle, X. Qiu, D. Redwine, R. Cong, A. Taha, D. Baugh, B. Winniford, Journal of Magnetic Resonance:187(2007)225. Reference 3: Z. Zhou, R. Cong, Y. He, M. Paradkar, M. Demirors, M. Cheatham, W. deGroot, Macromolecular Symposia, 2012, 312, 88.

[0067] The peak areas for each observed degree of unsaturation (i.e., vinylidene, vinylene, trisubstituted, cyclohexene, ethylidene norbornene (ENB) endo and exosomer unsaturation from EPDM) were measured from the spectra obtained during the second (pre-saturated) experiment described above. In the case of EPDM spectra, overlapping peak areas are appropriately compensated. Both spectra were normalized with respect to the solvent peak area. The moles of each degree of unsaturation were calculated by dividing the area under the unsaturated resonance by the number of protons contributing to that resonance. The moles of carbon in the polymer were calculated by dividing the area under the peak of the polymer chain (i.e., CH, CH2, and CH3 in the polymer) by 2. The total amount of unsaturation (the sum of the above unsaturations) was then expressed as the relative ratio of the moles of total unsaturation to the moles of carbon in the polymer, and expressed as the degree of unsaturation per 1000 carbon atoms (per 1000C). It should be noted that the results for EPDM samples in TCE-d2 / PCE can be calculated from spectra obtained using 1,4-orthodichlorobenzene-d4 / PCE, and TCE peak interference with a single vinyl proton at approximately 5.9 ppm can be eliminated. The results are the same within relative limits of less than 5%.

[0068] Melt Index The melt index I2 (or MI) of ethylene-based polymers was measured according to ASTM D-1238, under conditions of 190°C / 2.16 kg. The melt flow rate (MFR) of propylene-based polymers was measured according to ASTM D-1238, under conditions of 230°C / 2.16 kg.

[0069] Polymer density Polymer plaques for density analysis were prepared using ASTM D4703. The density of each polymer was measured using ASTM D792, Method B.

[0070] Mooney viscosity of polymers (oil-free, filler-free) Mooney viscosity (ML1+4, 125°C) was measured according to ASTM 1646, with a preheating time of 1 minute and a rotor operating time of 4 minutes. The instrument used was an Alpha Technologies Mooney Viscometer 2000. The sample size was approximately 25 grams.

[0071] Gel permeation chromatography-ethylene polymers The chromatography system consists of a PolymerChar GPC-IR (Valencia, Spain) high-temperature GPC chromatograph equipped with an internal infrared detector (IR5). The autosampler's oven compartment is set to 160°C, and the column compartment to 150°C. The column is a linear mixed-bed column with four AGILENT "Mixed A" 30cm, 20micron columns. The chromatography solvent is 1,2,4-trichlorobenzene containing 200 ppm butylated hydroxytoluene (BHT). The solvent source is spurged with nitrogen. The injection volume is 200 microliters, and the flow rate is 1.0 ml / min.

[0072] Calibration of the GPC column set is performed using 21 narrow molecular weight distribution polystyrene standards with molecular weights ranging from 580 to 8,400,000 g / mol, which are placed in six "cocktail" mixtures with at least a 10-gram gap between individual molecular weights. The standards are purchased from Agilent Technologies. Polystyrene standards are prepared at a concentration of 0.025 grams per 50 ml of solvent for molecular weights greater than 1,000,000, and at a concentration of 0.05 grams per 50 ml of solvent for molecular weights less than 1,000,000. The polystyrene standards are dissolved at 80°C for 30 minutes with gentle stirring. The peak molecular weight of the polystyrene standards is converted to polyethylene molecular weight using Formula 1 (as described in Williams and Ward, J. Polym. Sci., Polym. Let., 6, 621 (1968)). M ポリエチレン =A × (Mポリスチレン ) B (Equation 1) (wherein M is the molecular weight, A has a value of 0.4315, and B is equal to 1.0).

[0073] A quintic polynomial is used to fit the respective polyethylene equivalent calibration points. A small adjustment (approximately 0.375 to 0.445) is made for A to correct for column resolution and band expansion effects so that linear homopolymer polyethylene standards are obtained at 120,000 Mw.

[0074] The total plate count of the GPC column set is performed using decane (prepared with 0.04 g in 50 ml of TCB and dissolved for 20 minutes with gentle stirring). Plate count (Equation 2) and symmetry (Equation 3) are measured by injecting 200 microliters according to the following formulas.

[0075]

number

[0076]

number

[0077] The sample was prepared semi-automatically using PolymerChar "Instrument Control" software, with a target weight of 2 mg / mL. The solvent (containing 200 ppm BHT) was added to a pre-spurged nitrogen-filled vial with a septum cap via a PolymerChar high-temperature autosampler. The sample was dissolved at 160°C for 2 hours under "low-speed" shaking.

[0078] Mn (GPC) , Mw (GPC) , and Mz (GPC) This is calculated based on GPC results using the PolymerChar GPCOne™ software, an IR chromatograph with the baseline subtracted at each equally spaced data acquisition point (i), and the polyethylene equivalent molecular weight obtained from the narrow standard calibration curve at point (i) from Equation 1, using the internal IR5 detector (measurement channel) of the PolymerChar GPC-IR chromatograph according to Equations 4-6. Equations 4-6 are as follows:

[0079]

number

[0080] To monitor deviations over time, a flow rate marker (decane) is introduced into each sample via a micropump controlled by the PolymerChar GPC-IR system. This flow rate marker (FM) is used to linearly correct the pump flow rate (apparent flow rate) for each sample by matching the RV of each decane peak (RV(FM sample)) in the sample with that of the decane peak in the narrow standard calibration (RV(FM calibrated)). It is then assumed that any change in the decane marker peak over time is related to a linear shift in the flow rate (effective flow rate) throughout the run. To facilitate the highest accuracy of RV measurement of the flow rate marker peak, a least-squares fitting routine is used to fit the peaks of the flow rate marker concentration chromatogram to a quadratic equation. The first derivative of the quadratic equation is then used to solve for the true peak position. After calibrating the system based on the flow rate marker peak, the effective flow rate (with respect to the narrow standard calibration) is calculated as shown in Equation 7: Effective flow rate = Apparent flow rate * (RV(FM calibrated) / RV(FM sample))(Equation 7). Flow marker peak processing is performed via PolymerChar GPCOne® software. The acceptable flow correction is that the effective flow rate is within + / - 0.7% of the apparent flow rate.

[0081] experiment Commercial polymers and additives NORDEL 3720 P EPDM, Mooney viscosity = 20 (ML 1+4, 125℃), 0.5 wt% ENB, 69.5 wt% ethylene, available from The Dow Chemical Company.

[0082] NORDEL 3722P EPDM, Mooney viscosity = 18 (ML 1+4, 125℃), 0.5 wt% ENB, 70.5 wt% ethylene, available from The Dow Chemical Company.

[0083] ENGAGE PV 8669 polyolefin elastomer, density = 0.873 g / cc, I2 = 14 dg / min, available from The Dow Chemical Company.

[0084] ENGAGE 8407 Polyolefin elastomer, ethylene / 1-octen copolymer: Density = 0.870 g / cc, I2 = 30 dg / min, available from The Dow Chemical Company.

[0085] EVA E282PV (ethylene vinyl acetate copolymer), density = 0.948 g / cc, I2 = 25 dg / min, VA content 28 wt%, available from Hanwha.

[0086] Vinyl D4 (2,4,6,8-tetramethyltetravinylcyclotetrasiloxane (CAS: 2554-06-5)), available from the Dow Chemical Company.

[0087] TAIC (Triallyl Isocyanurate), available from Hunan Farida Technology, Co. Ltd.

[0088] TBEC (tert-butylperoxy-2-ethylhexyl carbonate [CAS:34443-12-4]), available from Arkema.

[0089] TAEC (tert-amylperoxy 2-ethylhexyl carbonate [CAS: 70833-40-8]), available from Arkema.

[0090] CH-80MO(1,1-di(tert-butylperoxy)cyclohexane [CAS:3006-86-8], 80%), available from Qiangsheng Chemical.

[0091] VMMS (3-(trimethoxysilyl)propyl methacrylate), available from The Dow Chemical Company.

[0092] SiH-1:1,1,1,3,5,5,5-heptamethyltrisiloxane [CAS:1873-88-7], available from TCI.

[0093] SiH-2:1,1,3,3-tetramethyldisiloxane [CAS:3277-26-7], available from TCI.

[0094] SiH-3:3-((dimethylsilyl)oxy)-1,1,5,5-tetramethyl-3-phenyltrisiloxane [CAS:18027-45-7], available from TCI.

[0095] SiH-PDMS: Hydride-terminated polydimethylsiloxane, viscosity 7-10 mPa·s and 0.16 wt% SiH, commercially available from Gelest as DMS-H11 [CAS 70900-21-9].

[0096] SiH-4:triethoxysilane [CAS:998-30-1], available from SCRC.

[0097] SiH-5:1-(2-(trimethoxysilyl)ethyl)-1,1,3,3-tetramethyldisiloxane [CAS:137407-65-9], available from Macklin Biochemical Company.

[0098] Tables 1A to 1C provide an overview of the elastomers used in the following studies.

[0099] [Table 1]

[0100] [Table 2]

[0101] [Table 3] Please note that the percentage of a particular unsaturation (pu%) = [(amount of pu / 1000C) / (total amount of unsaturation / 1000C)] × 100 (wherein pu% = vinyl%, vinylidene%, vinylene%, trisubstituted%, or ENB%).

[0102] Polymer synthesis EO R06 (Ethylene / Octen Copolymer) EO R06 was prepared in a 1-gallon polymerization reactor filled with hydraulic pressure and operated under steady-state conditions. The catalyst and co-catalysts are listed in Table 2. The solvent, hydrogen, catalyst, and co-catalysts were supplied to the reactor according to the process conditions outlined in Tables 3A to 3C. The solvent was ISOPAR E supplied by ExxonMobil Chemical Company. The reactor temperature was measured at or near the reactor outlet. The copolymer was isolated and pelletized.

[0103] [Table 4]

[0104] [Table 5]

[0105] [Table 6] * The amount in "ppm" is based on the weight of the catalyst supply solution.

[0106] [Table 7] * The amount in "ppm" is based on the weight of the co-catalyst supply solution. ** The amount of Al in "ppm" based on the weight of the co-catalyst supply solution.

[0107] EO Tele 1 (see International Publication No. 2020 / 140058) and EO Mono 2 (see International Publication No. 2020 / 140067), EO Mono 3-5 Synthesis of tris(2-(cyclohexa-3-en-1-yl)ethyl)aluminum chain transfer agent ("CTA 1") In a dry box, 4-vinyl-1-cyclohexene (3.2 mL, 24.6 mmol) and triisobutylaluminum (2.0 mL, 7.92 mmol) were added to 5 mL of decane in a vial equipped with a stirring rod and venting needle on the lid. This mixture was heated at 120°C with stirring for 3 hours. After 3 hours, 1 For 1H NMR analysis, the sample was dissolved in benzene-d6, another aliquot was hydrolyzed with water, and analyzed by GC / MS. 1 ¹H NMR showed that all vinyl groups had reacted, leaving internal double bonds. GC / MS showed a clear peak at 110 m / z, consistent with the molecular weight of ethylcyclohexene. Therefore, 1 The synthesis of tris(2-(cyclohexa-3-en-l-yl)ethyl)aluminum ("CTA 1") via a non-restrictive scheme 1 was confirmed by 1H NMR and GC / MS.

[0108] [ka]

[0109] catalyst CAT 1 may be prepared in accordance with the teachings of International Publication No. 03 / 40195 and U.S. Patent No. 6,953,764(B2), and has the following structure:

[0110] [ka]

[0111] CAT 2 may be prepared in accordance with the teachings of International Publication No. 2011 / 102989(A1) and has the following structure:

[0112] [ka]

[0113] Continuous solution polymerization of EO Tele 1 EO Tele 1 (A 1 L 1 L 2 A 2 The catalyst was prepared via continuous solution polymerization as follows: Polymerization was carried out in a computer-controlled autoclave reactor equipped with an internal stirrer. A purified mixed alkane solvent (ISOPAR E, available from ExxonMobil), monomer, and molecular weight modifier (hydrogen or chain transfer agent) were supplied to a "3.8 L" reactor equipped with a temperature-controlled jacket. The supply of solvent to the reactor was measured by a mass flow controller. A variable-speed diaphragm pump controlled the solvent flow rate and the pressure to the reactor. At the pump outlet, a side flow was taken to provide a steep flow to the injection lines for the pro-catalyst, activator, and chain transfer agent (catalyst component solution). These flow rates were measured by a mass flow meter and controlled by a control valve. The remaining solvent was mixed with the monomer and hydrogen and supplied to the reactor. The temperature of the solvent / monomer solution was controlled using a heat exchanger before it entered the reactor. This flow entered the bottom of the reactor. The catalyst component solution was metered using a pump and mass flow meter and introduced into the bottom of the reactor in combination with the catalyst flash solvent. The reactor was filled with liquid at 500 psig while vigorously agitated. The polymer was removed through the outlet line at the top of the reactor. All outlet lines from the reactor were vapor-tracked and insulated. The product stream was then heated to 230°C by passing it through a post-reactor heater (PRH) to remove the beta-H from the polymer-Al. A small amount of isopropyl alcohol, along with any stabilizer or other additives, was added after the PRH and before defoliation. The polymer product was recovered by extrusion using a defoliation extruder. The polymerization conditions and results before post-reactor heating (PRH) are listed in Tables 4A and 4B.

[0114] The abbreviations in the table are explained below. "Co." stands for comonomer, and "sccm" stands for standard cm. 3 / min(standard cm 3 " / min" represents the time, "T" refers to temperature, "Cat" refers to procatalyst, "CAT 1" refers to procatalyst (CAT 1), "CoCAT-1" refers to cocatalyst as defined in Table 2, "CTA" refers to chain transfer agent, "Poly Rate" represents polymer production rate, "Conv" represents the percentage ethylene conversion in the reactor, and "Eff." represents efficiency, polymer kg / g catalyst metal.

[0115] [Table 8]

[0116] [Table 9]

[0117] Continuous solution polymerization of EO mono2-EO mono5 EO Mono 2, 3, 4, 5, (A 1 L 1 The continuous solution polymerization of ) was carried out in the same manner as the EO Tele 1 method (see above). The polymerization conditions and results before post-reactor heating (PHR) are listed in Tables 5A and 5B. In this specification, "TEA" represents triethylaluminum, and "CAT 2" represents procatalyst (CAT 2). For other abbreviations, please refer to "EO Tele 1 polymerization" above.

[0118] [Table 10]

[0119] [Table 11]

[0120] composition The compositions are shown in Tables 6 to 12. For each composition, polymer pellets were mixed with a curing additive ("Si-H additive", peroxide, optional additive, and optional alkoxylsilane coupling agent or other compound) in a 250 mL sealable fluorinated HDPE bottle. The immersion process was carried out via shaking and absorbed at 50°C for 5 hours until no liquid residue adhering to the inner wall of the bottle was visually apparent. For Invention 16, SiH-PDMS was compounded into LDPE at 110°C and 30 rpm using a BRABENDER internal mixer equipped with a 350 mL bowl, and then pelletized at 110°C using a BRABENDER single-screw extruder.

[0121] Results and Discussion The curing results are shown in Tables 6 to 12. For most of the compositions of the present invention, there was generally a reduction in T90 and an increase in MH values ​​compared to their respective comparative examples. As seen in Table 6, the compositions of the present invention show a reduction in T90 and an increase in MH. Comparative compositions containing EVA or conventional POE with low unsaturation show a minimal reduction in T90 and a decrease in MH. The MH comparisons between A and B, C and D, and E and F suggest that the addition of SiH additives results in less curing.

[0122] As shown in Table 7, the SiH additive is effective in the compositions of the present invention when added at a concentration of 0.1 to 0.5% by weight. SiH can also be used with other additives such as TAIC, but is only effective in POE with a high degree of unsaturation, as seen in the decrease in T90 and the increase in MH. With and without the TAIC additive, comparative compositions containing conventional POE and various levels of SiH additives showed minimal changes in T90 and a decrease in MH values.

[0123] As shown in Table 8, the compositions of the present invention containing SiH additives and EPDM exhibited excellent curing properties (decreased T90 and increased MH). Furthermore, the SiH additives were effective against different types of peroxides. As shown in Table 9, the compositions of the present invention containing SiH additives and POE (unsaturated) or EPDM polymers exhibited excellent curing properties. SiH additives can be used in the presence of alkoxysilane coupling agents such as VMMS, along with other additives such as TAIC and vinyl-D4. As shown in Tables 10 and 11, various types of SiH additives, including those having only one or two SiH groups, were effective and resulted in excellent curing properties. The compositions of the present invention shown in Table 12 exhibited generally better curing properties.

[0124] [Table 12]

[0125] [Table 13]

[0126] [Table 14]

[0127] [Table 15]

[0128] Table 16

[0129] Table 17

[0130] Table 18 This application provides, for example, the following inventions: [1] A process for forming a crosslinked composition, wherein the process comprises at least the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A molecule containing at least one Si-H group, c) at least one peroxide, d) A process comprising applying heat and optionally radiation to a composition comprising, optionally, at least one crosslinking agent different from component b. [2] A process for forming a crosslinked composition, wherein the process comprises the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A process comprising applying radiation and optionally heat to a composition comprising a molecule containing at least one Si-H group. [3] The process according to [1] or [2] above, wherein component a is an elastomer. [4] The process according to any one of the above [1] to [3], wherein the elastomer has a density of 0.860 g / cc to 0.920 g / cc. [5] The elastomer is, Formula A 1 L 1 L 2 A 2 Telechelic polyolefin, formula A 1 L 1 The process according to any one of the above [1] to [4], selected from unsaturated polyolefins, ethylene / alpha-olefin / non-conjugated polyene interpolymers, or ethylene / alpha-olefin interpolymers. [6] The process according to any one of the above [1] to [5], wherein component b comprises two or more Si-H groups. [7] The process according to any one of the above [1] to [6], wherein component b comprises one or more siloxane groups (-Si-O-Si-). [8] The process according to any one of the above [1] to [7], wherein the silicon of SiH in component b is bonded to at least one alkyl group (R). [9] The process according to any one of the above [1] to [8], wherein the silicon of SiH in component b is bonded to at least one alkoxyl group (RO).

[10] A crosslinked composition formed by any one of the processes described in [1] to [9] above.

[11] A composition comprising at least the following components: a) An elastomer or olefin polymer having a density greater than 0.920 g / cc, wherein component a has a total unsaturation degree of 0.20 / 1000C or more, b) A molecule containing at least one Si-H group, c) at least one peroxide, d) A composition comprising, optionally, at least one crosslinking agent different from component b.

[12] The composition according to

[11] above, wherein component a is an elastomer.

[13] The composition according to [11 or 12], wherein the elastomer has a density of 0.860 g / cc to 0.920 g / cc.

[14] The elastomer is of formula A 1 L 1 L 2 A 2 Telechelic polyolefin, formula A 1 L 1 A composition according to any one of the above

[11] to

[13] , selected from unsaturated polyolefins, ethylene / alpha-olefin / non-conjugated polyene interpolymers, or ethylene / alpha-olefin interpolymers.

[15] The composition according to any one of the above

[11] to

[14] , wherein component b comprises two or more Si-H groups.

[16] The composition according to any one of the above

[11] to

[15] , wherein component b comprises one or more siloxane groups (-Si-O-Si-).

[17] The composition according to any one of

[11] to

[16] , wherein the silicon of SiH in component b is bonded to at least one alkyl group (R).

[18] The composition according to any one of

[11] to

[17] , wherein the silicon of SiH in component b is bonded to at least one alkoxyl group (RO).

[19] A crosslinked composition formed from any one of the compositions described in

[11] to

[18] above.

[20] An article comprising at least one component formed from one of the compositions described in any one of the above

[10] to

[19] .

Claims

1. A process for forming a crosslinked composition for forming a encapsulating material for solar cells, wherein the process comprises at least the following components: a) An elastomer having a density of 0.860 g / cc to 0.920 g / cc or less, based on the weight of the composition, in an amount of 96.0% by weight or more, and having a total degree of unsaturation of 0.20 / 1000C or more, b) A molecule containing at least one Si-H group, c) At least one peroxide, d) Optionally, at least one crosslinking agent different from component b, A process comprising applying heat to a composition containing [a certain substance].

2. The elastomer, Formula A １ L １ L ２ A ２ Telechelic polyolefin, formula A １ L １ Selected from unsaturated polyolefins, ethylene / alpha-olefin / non-conjugated polyene interpolymers, or ethylene / alpha-olefin interpolymers, In the above formula A1 L1 L2 A2, L1 is a polyolefin, and L1 is divalent and bonded to A1 and L2. A1 is as follows: a) Vinyl group, b) The vinylidene group of formula CH₂=C(Y₁)- c) Equation Y 1 CH=CH- vinylene group, d) A combination of a vinyl group and a vinylene group of formula Y1 CH=CH-, e) A combination of a vinyl group and a vinylidene group of the formula CH₂=C(Y₁)-, f) Combinations of the vinylidene group of formula CH₂=C(Y₁)- and the vinylene group of formula Y₁CH=CH-, and g) Combinations of a vinyl group, a vinylidene group of formula CH₂=C(Y₁)-, and a vinylene group of formula Y₁CH=CH- Selected from the group consisting of, Y1 is independently a C1-C30 hydrocarbyl group in each instance. L2 is a C1-C32 hydrocarbylene group, A2 is a hydrocarbyl group containing a hindered double bond, In the above formula A1L1, L1 is a polyolefin, where L1 is monovalent and bonded to A1. A1 is as follows: a) Vinyl group, b) The vinylidene group of formula CH₂=C(Y₁)- c) Equation Y 1 CH=CH- vinylene group, d) A combination of a vinyl group and a vinylene group of formula Y1 CH=CH-, e) A combination of a vinyl group and a vinylidene group of the formula CH₂=C(Y₁)-, f) Combinations of the vinylidene group of formula CH₂=C(Y₁)- and the vinylene group of formula Y₁CH=CH-, and g) Combinations of a vinyl group, a vinylidene group of formula CH₂=C(Y₁)-, and a vinylene group of formula Y₁CH=CH- Selected from the group consisting of, Y1 is a C1-C30 hydrocarbyl group, independently of each occurrence. The process according to claim 1.

3. The process according to claim 1 or 2, wherein component b comprises two or more Si-H groups.

4. The process according to any one of claims 1 to 3, wherein component b comprises one or more siloxane groups (-Si-O-Si-).

5. The process according to any one of claims 1 to 4, wherein the silicon of SiH in component b is bonded to at least one alkyl group (R).

6. The process according to any one of claims 1 to 5, wherein the silicon of the SiH in component b is bonded to at least one alkoxyl group (RO).

7. A composition for forming a encapsulating material for a solar cell, comprising at least the following components: a) An elastomer having a density of 0.860 g / cc to 0.920 g / cc or less, based on the weight of the composition, in an amount of 96.0% by weight or more, and having a total degree of unsaturation of 0.20 / 1000C or more, b) A molecule containing at least one Si-H group, c) At least one peroxide, d) Optionally, at least one crosslinking agent different from component b, A composition containing the following:

8. The elastomer is Formula A １ L １ L ２ A ２ of a telechelic polyolefin of Formula A １ L １ of an unsaturated polyolefin, an ethylene / alpha-olefin / non-conjugated polyene interpolymer, or an ethylene / alpha-olefin interpolymer, selected from In the above formula A1 L1 L2 A2, L1 is a polyolefin, and L1 is divalent and bonded to A1 and L2. A1 is as follows: a) Vinyl group, b) The vinylidene group of formula CH₂=C(Y₁)- c) Equation Y 1 CH=CH- vinylene group, d) A combination of a vinyl group and a vinylene group of formula Y1 CH=CH-, e) A combination of a vinyl group and a vinylidene group of the formula CH₂=C(Y₁)-, f) Combinations of the vinylidene group of formula CH₂=C(Y₁)- and the vinylene group of formula Y₁CH=CH-, and g) Combinations of a vinyl group, a vinylidene group of formula CH₂=C(Y₁)-, and a vinylene group of formula Y₁CH=CH- Selected from the group consisting of, Y1 is independently a C1-C30 hydrocarbyl group in each instance. L2 is a C1-C32 hydrocarbylene group, A2 is a hydrocarbyl group containing a hindered double bond, In the above formula A1L1, L1 is a polyolefin, where L1 is monovalent and bonded to A1. A1 is as follows: a) Vinyl group, b) The vinylidene group of formula CH₂=C(Y₁)- c) Equation Y 1 CH=CH- vinylene group, d) A combination of a vinyl group and a vinylene group of formula Y1 CH=CH-, e) A combination of a vinyl group and a vinylidene group of the formula CH₂=C(Y₁)-, f) Combinations of the vinylidene group of formula CH₂=C(Y₁)- and the vinylene group of formula Y₁CH=CH-, and g) Combinations of a vinyl group, a vinylidene group of formula CH₂=C(Y₁)-, and a vinylene group of formula Y₁CH=CH- Selected from the group consisting of, Y1 is a C1-C30 hydrocarbyl group, independently of each occurrence. The composition according to claim 7.

9. The composition according to claim 7 or 8, wherein component b comprises two or more Si-H groups.

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