Fluorosilicone compounds and compositions for adhesive release liners

Claim 2

A curable coating composition comprising: (A) a fluorosilicone polymer having the formula ViMe 2 SiO(Me 2 SiO)x{(RQ)MeSiO}y (MeViSiO)z SiMe 2 Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ. denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, and the values of x, y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical-containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units; (B') an organohydrogenpolysiloxane compound, compatible with (A), having an average of at least two silicon-bonded hydrogen atoms per molecule with the hydrogen radicals being bonded to separate silicon atoms, the quantities of (A) and (B') being sufficient to provide from 2 to 4 silicon-bonded hydrogen atoms for every vinyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.

Claim 3

A curable coating composition according to claim 1 wherein each RQ radical has the formula CF 3 CF 2 CF 2 CF 2 CH 2 CH 2 .

Claim 4

A curable coating composition according to claim 2 wherein x+y+z has a value of 2500, y has a value of 750 and z has a value of 12.5.

Claim 5

A curable coating composition comprising: (A') a fluorosilicone polymer having the formula AMe 2 SiO(Me 2 SiO)x{(RQ)MeSiO}y(MeASiO)z SiMe 2 A, wherein A denotes an alkenyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 2 to 8 carbon atoms, Q denotes a divalent hydrocarbon radical linking R to Si through at least 2 carbon atoms, and the values of x, y and z are such that the fluorosilicone polymer contains at least 5 mol percent (RQ)MeSiO 2/2 siloxane units and 0.1 to 10 mol percent alkenyl radical-containing siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A'), having the formula Me 3 SiO(MeHSiO)m{(RQ)MeSiO}n SiMe 3 , wherein m+n has a value of from 20 to 80, m/(m+n) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A') and (B) being sufficient to provide from 1 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.

Claim 6

A curable coating composition comprising: (A') a fluorosilicone polymer having the formula AMe 2 SiO(Me 2 SiO)x{(RQ)MeSiO}y(MeASiO)z SiMe 2 A, wherein A denotes an alkenyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 2 to 8 carbon atoms, Q denotes a divalent hydrocarbon radical linking R to Si through at least 2 carbon atoms, and the values of x, y and z are such that the fluorosilicone polymer contains at least 5 mol percent (RQ)MeSiO 2/2 siloxane units and 0.1 to 10 mol percent alkenyl radical-containing siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A'), having the formula Me 3 SiO(MeHSiO)m{(RQ)MeSiO}n SiMe 3 , wherein m+n has a value of from 20 to 80, m/(m+n) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A') and (B) being sufficient to provide from 1 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.

Claim 7

A curable coating composition according to claim 4 wherein each RQ has the formula CF 3 CF 2 CF 2 CF 2 CH 2 CH 2 , m has a value of 28 and n has a value of 12.

Claim 8

A curable coating composition comprising: (A) a fluorosilicone polymer having the formula ViMe 2 SiO(Me 2 SiO)x{(RQ)MeSiO}y (MeViSiO)z SiMe 2 Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, and the values of x, y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical-containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A), having the formula Me 3 SiO(MeHSiO)m{(RQ)MeSiO}n SiMe 3 , wherein m+n has a value of from 20 to 80, m/(m+n) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A) and (B) being sufficient to provide from 2 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.

Claim 9

A curable coating composition comprising: (A) a fluorosilicone polymer having the formula ViMe 2 SiO(Me 2 SiO)x{(RQ)MeSiO}y (MeViSiO)z SiMe 2 Vi, wherein Vi denotes a vinyl radical, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms, Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, and the values of x, y and z are such that the fluorosilicone polymer contains at least 300 silicon atoms, from 0.5 to 2 mol percent vinyl radical-containing siloxane units and 30 mol percent (RQ)MeSiO 2/2 siloxane units; (B) an organohydrogenpolysiloxane compound, compatible with (A), having the formula Me 3 SiO(MeHSiO)m{(RQ)MeSiO}n SiMe 3 , wherein m+n has a value of from 20 to 80, m/(m+n) has a value of 0.6 to 0.8, Me denotes a methyl radical, RQ denotes a silicon-bonded fluorinated radical wherein R denotes a perfluoroalkyl radical having from 4 to 8 carbon atoms and Q denotes an alkylene radical linking R to Si through at least 2 carbon atoms, the quantities of (A) and (B) being sufficient to provide from 2 to 4 silicon-bonded hydrogen atoms for every alkenyl radical in the composition; (C) a catalytic amount of a metal-containing hydrosilylation catalyst; and (D) an effective amount of an inhibitor for the metal-containing hydrosilylation catalyst.

Claim 10

A curable coating composition according to claim 6 wherein each RQ radical has the formula CF 3 CF 2 CF 2 CF 2 CH 2 CH 2 , m has a value of 28 and n has a value of 12.

Claim 11

A curable coating composition according to claim 7 wherein x+y+z has a value of 2500, y has a value of 750 and z has a value of 12.5.

Claim 12

A curable coating composition according to claim 8 wherein Component (C) is a complex of H 2 PtCl 6 and divinyltetramethyldisiloxane and Component (D) is bis-(2-methoxyisopropyl) maleate.