Curable organopolysiloxane composition containing adhesion promoter

Claim 2

An adhesion promoter prepared by condensing the adhesion promotor of claim 1 with a silicon compound that contains at least two silicon-bonded alkoxy groups in each molecule.

Claim 3

The adhesion promoter according to claim 2, wherein said alkoxysilane (c) is selected from the group consisting of tetramethoxysilane, tetraethoxysilane, methyltrimethoxysilane, ethyltrimethoxysilane, vinyltrimethoxysilane, allyltrimethoxysilane, phenyltrimethoxysilane, dimethyldimethoxysilane, methylvinyldimethoxysilane, methylphenyldimethoxysilane, diphenyldimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-methacryloxypropyltrimethoxysilane, bis(trimethoxysilyl)ethane, bis(trimethoxysilyl)propane, bis(trimethoxysilyl)butane, bis(trimethoxysilyl)pentane, bis(trimethoxysilyl)hexane, bis(triethoxysilyl)ethane, bis(triethoxysilyl)propane, bis(methyldimethoxysilyl)ethane, and bis(methyldimethoxysilyl)propane.

Claim 4

The composition according to claims 1 or 2, wherein said amine compound (a) is selected from the group consisting of methylamine, ethylamine, n-propylamine, n-butylamine, tert-butylamine, dimethylamine, diethylamine, dipropylamine, di(n-butyl)amine, di(tert-butyl)amine, allylamine, butenylamine, diallylamine, methylaniline, allylaniline and aniline and said epoxy compound (b) is selected from the group consisting of allyl glycidyl ether, butenyl glycidyl ether, pentenyl glycidyl ether, 4-vinyl-1,2-epoxycyclohexane, 4-allyl-1,2-epoxycyclohexane, 4-butenyl-1,2-epoxycyclohexane, 4-pentenyl-1,2-epoxycyclohexane, glycidyl methacrylate, and glycidyl acrylate.

Claim 5

The composition according to claim 4, wherein said amine compound (a) is selected from the group consisting of allylamine and aniline and said epoxy compound (b) is allyl glycidyl ether.

Claim 6

The composition according to claim 5, wherein said alkoxysilane (c) is selected from tetramethoxysilane and bis(trimethoxysilyl)hexane.

Claim 7

A curable organopolysiloxane composition comprising: (A) 100 parts by weight of an organopolysiloxane that contains at least 2 alkenyl groups in each molecule; and (B) an organopolysiloxane that contains at least 2 silicon-bonded hydrogen atoms in each molecule, in a quantity sufficient to provide 0.3 to 5.0 moles of silicon-bonded hydrogen in said component (B) per 1 mole of total alkenyl groups in the composition; (C) 0.3 to 10 parts by weight of the adhesion promoter of cliams 1 or 2; and (D) 0.1 to 500 ppm or catalyst metal, per million parts of composition of a hydrosilylation catalyst.

Claim 8

The composition according to claim 7, wherein said organopolysiloxane (A) is selected from the group consisting of trimethylsiloxy-endblocked methylvinylpolysiloxanes, trimethylsiloxy-endblocked dimethylsiloxane-methylvinylsiloxane copolymers, trimethylsiloxy-endblocked methylphenylsiloxane-methylvinylsiloxane copolymers, dimethylvinylsiloxy-endblocked dimethylpolysiloxanes, dimethylvinylsiloxy-endblocked dimethylsiloxane-methylvinylsiloxane copolymers, dimethylvinylsiloxy-endblocked methylphenylpolysiloxanes, dimethylvinylsiloxy-endblocked methylphenylsiloxane-methylvinylsiloxane copolymers, silicone resins composed of the (CH₃)₃SiO 1/2 , (CH₃)₂(CH₂=CH)SiO 1/2 , and SiO 4/2 units, and silicone resins composed of the (CH₃)₃SiO 1/2 , (CH₃)₂(CH₂=CH)SiO 1/2 , CH₃SiO 3/2 , and SiO 4/2 units and said organopolysiloxane (B) is selected from the group consisting of trimethylsiloxy-endblocked methylhydrogenpolysiloxanes, trimethylsiloxy-endblocked dimethylsiloxane-methylhydrogensiloxane copolymers, dimethylhydrogensiloxy-endblocked dimethylpolysiloxanes, dimethylhydrogensiloxy-endblocked methylhydrogenpolysiloxanes, dimethylhydrogensiloxy-endblocked dimethylsiloxane-methylhydrogensiloxane copolymers, cyclic methylhydrogenpolysiloxanes, cyclic dimethylsiloxane-methylhydrogensiloxane copolymers, tetrakis(dimethylhydrogensiloxy)silane, silicone resins composed of the (CH₃)₂HSiO 1/2 , (CH₃)₃SiO 1/2 , and SiO 4/2 units, and silicone resins composed of the (CH₃)₂HSiO 1/2 , (CH₃)₃SiO 1/2 , CH₃SiO 3/2 , and SiO 4/2 units.

Claim 9

A copper metal substrate coated with the composition of claim 7.

Claim 10

The composition according to claim 7, wherein said hydrosilation catalyst (D) is selected from the group consisting of platinum black, platnium supported on silica micropowder, platinum supported on carbon powder, chloroplatinic acid, alcohol solutions of chloroplatinic acid, platinum/olefin complexes, platinum/alkylsiloxane complexes, platnium/beta-diketone complexes, and platnium/phosphine complexes; rhodium catalyst such as rhodium chloride or rhodium chloride/di(n-butyl)sulfide complex; and palladium catalyst.