Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
316 words
A curable polyorganosiloxane composition comprising: (A) 100 parts by weight of a polyorganosiloxane having at least two units represented by the following formula in the molecule: ##STR16## wherein R 1 represents an alkenyl group, R 2 represents a substituted or unsubstituted monovalent hydrocarbon group containing no aliphatically unsaturated bond, a is an integer of 1 or 2, b is an integer of 0 to 2, with a+b being an integer of 1 to 3; (B) a polyorganohydrogensiloxane having a unit represented by the following formula and also having at least 3 hydrogen atoms bonded to silicon atoms in the molecule: ##STR17## wherein R 3 represents a substituted or unsubstituted monovalent hydrocarbon group, c is an integer of 0 to 2, d is an integer of 1 or 2, with c+d being an integer of 1 to 3, in an amount such that the number of hydrogen atoms bonded to silicon atoms may be from 0.5 to 4.0 per R 1 in polyorganosiloxane (A); (C) 0.5 to 10 parts by weight of a (meth)acryl group-containing polyorganosiloxane comprising: 10to 40 mole % of units represented by the formula: ##STR18## wherein R 4 represents a hydrogen atom or a methyl group and e is an integer of 1 to 5, 10to 60 mole % of (CH 3 )HSiO units, 0to 20 mole % of (CH 3 ) 2 SiO units, 5 to 20 mole % of units represented by the formula: (R.sup.5).sub.3 SiO.sub.1/2 wherein R 5 represents an alkyl group having 1 to 4 carbon atoms or a phenyl group, and 10 to 50 mole % of units represented by the formula: R.sup.6 SiO.sub.3/2 wherein R 6 represents an alkyl group having 1 to 4 carbon atoms or a phenyl group; and (D) 1 to 100 ppm in terms of platinum atoms based on polyorganosiloxane (A) of a catalyst selected from the group consisiting of platinum and platinum compounds.
Claim 2
Dependent Claim
316 words
A curable polyorganosiloxane composition comprising: (A) 100 parts by weight of a polyorganosiloxane having at least two units represented by the following formula in the molecule: ##STR16## wherein R 1 represents an alkenyl group, R 2 represents a substituted or unsubstituted monovalent hydrocarbon group containing no aliphatically unsaturated bond, a is an integer of 1 or 2, b is an integer of 0 to 2, with a+b being an integer of 1 to 3; (B) a polyorganohydrogensiloxane having a unit represented by the following formula and also having at least 3 hydrogen atoms bonded to silicon atoms in the molecule: ##STR17## wherein R 3 represents a substituted or unsubstituted monovalent hydrocarbon group, c is an integer of 0 to 2, d is an integer of 1 or 2, with c+d being an integer of 1 to 3, in an amount such that the number of hydrogen atoms bonded to silicon atoms may be from 0.5 to 4.0 per R 1 in polyorganosiloxane (A); (C) 0.5 to 10 parts by weight of a (meth)acryl group-containing polyorganosiloxane comprising: 10to 40 mole % of units represented by the formula: ##STR18## wherein R 4 represents a hydrogen atom or a methyl group and e is an integer of 1 to 5, 10to 60 mole % of (CH 3 )HSiO units, 0to 20 mole % of (CH 3 ) 2 SiO units, 5 to 20 mole % of units represented by the formula: (R.sup.5).sub.3 SiO.sub.1/2 wherein R 5 represents an alkyl group having 1 to 4 carbon atoms or a phenyl group, and 10 to 50 mole % of units represented by the formula: R.sup.6 SiO.sub.3/2 wherein R 6 represents an alkyl group having 1 to 4 carbon atoms or a phenyl group; and (D) 1 to 100 ppm in terms of platinum atoms based on polyorganosiloxane (A) of a catalyst selected from the group consisiting of platinum and platinum compounds.
Claim 3
Dependent Claim
15 words
A composition according to claim 1, wherein R 1 in (A) is a vinyl group.
Claim 4
Dependent Claim
48 words
A composition according to claim 2, wherein polyorganosiloxane (A) is a compound represented by the followng formula: CH.sub.2 ═CH(R.sup.2).sub.2 SiO[(R.sup.2).sub.2 SiO].sub.n Si(R.sup.2).sub.2 CH═CH.sub.2 wherein R 2 is a substituted or unsubstituted monovalent hydrocarbon group containing no aliphatically unsaturated bond, and n is an integer of 20 to 5,000.
Claim 5
Dependent Claim
32 words
A composition according to claim 3, wherein polyorganosiloxane (A) is a compound represented by the followng formula: CH.sub.2 ═CH(CH.sub.3).sub.2 SiO[(CH.sub.3).sub.2 SiO].sub.n Si(CH.sub.3).sub.2 CH═CH.sub.2 wherein n is an integer of 20 to 5,000.
Claim 6
Dependent Claim
67 words
A composition according to claim 1, wherein polyorganohydrogensiloxane (B) is represented by the following formula: R.sup.7 (CH.sub.3).sub.2 SiO[(CH.sub.3)HSiO].sub.p [(CH.sub.3).sub.2 SiO].sub.q Si(CH.sub.3).sub.2 R.sup.7 wherein R 7 represents a hydrogen atom or a methyl group, p represents an integer of 1 to 100, provided that p is 3 to 100, when both of the two R 7 are methyl groups, and q represents an integer of 0 to 100.
Claim 7
Dependent Claim
37 words
A composition according to claim 1, wherein polyorganohydrogensiloxane (B) consists of (CH 3 ) 2 HSiO 1/2 and SiO 2 units, with the content of hydrogen atoms bonded to silicon atoms being 0.3 to 1.2% by weight.
Claim 8
Dependent Claim
16 words
A composition according to claim 1, wherein R 4 in polyorganosiloxane (C) is a methyl group.
Claim 9
Dependent Claim
13 words
A composition according to claim 1, wherein e in polyorganosiloxane (C) is 3.
Claim 10
Dependent Claim
16 words
A composition according to claim 1, wherein R 5 in polyorganosiloxane (C) is a methyl group.
Claim 11
Dependent Claim
16 words
A composition according to claim 1, wherein R 6 in polyorganosiloxane (C) is a methyl group.
Claim 12
Dependent Claim
12 words
A composition according to claim 1, wherein an inorganic filler is added.