Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
286 words
A silicone-modified acrylic copolymer having a weight average molecular weight of 5,000 to 1,000,000, comprising: I. a structural unit of formula wherein R 1 is a hydrogen atom, a methyl group or an ethyl group, and R 3 is an alkyl group having up to 13 carbon atoms or an aryl group having 6 to 14 carbon atoms; II. a structural unit of formula or of formula wherein R 2 is a hydrogen atom, a methyl group or an ethyl group, each R 4 , which may be identical or different, is an alkyl group having up to 6 carbon atoms or an aryl group having 6 to 14 carbon atoms, each R 5 , which may be the same or different, is a hydrogen atom, an alkyl group having up to 6 carbon atoms or an aryl group having 6 to 14 carbon atoms, A is a divalent organic group having 2 to 20 carbon atoms which may optionally comprise an ether bond or an ester bond in the main chain, and c and d are average recurring unit numbers, c being from 1 to 100 and d being from 0 to 100; and, optionally, III. a structural unit of formula wherein R 6 is a hydrogen atom, a methyl group or an ethyl group, and R 7 is an ethylenically unsaturated hydrocarbon group having 2 to 20 carbon atoms which may optionally comprise an ether bond or an ester bond in the main chain, wherein units (I), (II) and (III) are contained in mole percentages of (I) = 10 to 99.9%, (II) = 90 to 0.1 % and (III) = 0 to 89.9% relative to the total number of units (I), (II) and (III).
Claim 2
Dependent Claim
286 words
A silicone-modified acrylic copolymer having a weight average molecular weight of 5,000 to 1,000,000, comprising: I. a structural unit of formula wherein R 1 is a hydrogen atom, a methyl group or an ethyl group, and R 3 is an alkyl group having up to 13 carbon atoms or an aryl group having 6 to 14 carbon atoms; II. a structural unit of formula or of formula wherein R 2 is a hydrogen atom, a methyl group or an ethyl group, each R 4 , which may be identical or different, is an alkyl group having up to 6 carbon atoms or an aryl group having 6 to 14 carbon atoms, each R 5 , which may be the same or different, is a hydrogen atom, an alkyl group having up to 6 carbon atoms or an aryl group having 6 to 14 carbon atoms, A is a divalent organic group having 2 to 20 carbon atoms which may optionally comprise an ether bond or an ester bond in the main chain, and c and d are average recurring unit numbers, c being from 1 to 100 and d being from 0 to 100; and, optionally, III. a structural unit of formula wherein R 6 is a hydrogen atom, a methyl group or an ethyl group, and R 7 is an ethylenically unsaturated hydrocarbon group having 2 to 20 carbon atoms which may optionally comprise an ether bond or an ester bond in the main chain, wherein units (I), (II) and (III) are contained in mole percentages of (I) = 10 to 99.9%, (II) = 90 to 0.1 % and (III) = 0 to 89.9% relative to the total number of units (I), (II) and (III).
Claim 3
Dependent Claim
21 words
A copolymer according to claim 1 wherein R 1 , R 2 and R 6 are hydrogen atoms or methyl groups.
Claim 4
Dependent Claim
21 words
A copolymer according to claim 1 or 2 wherein R 3 is an alkyl group having 1 to 3 carbon atoms.
Claim 5
Dependent Claim
19 words
A copolymer according to any one of the preceding claims wherein R 4 is a methyl or phenyl group.
Claim 6
Dependent Claim
23 words
A copolymer according to any one of the preceding claims wherein R 5 is a hydrogen atom or a methyl or phenyl group.
Claim 7
Dependent Claim
25 words
A copolymer according to any one of the preceding claims wherein R 7 is an ethylenically unsaturated hydrocarbon group having 3 to 10 carbon atoms.
Claim 8
Dependent Claim
24 words
A copolymer according to any one of the preceding claims wherein A is a divalent saturated hydrocarbon group having 3 to 10 carbon atoms.
Claim 9
Dependent Claim
23 words
A silicone-modified acrylic copolymer according to any one of the preceding claims which has three or more SiH groups per polyorganosiloxane group unit.
Claim 10
Dependent Claim
26 words
An adhesive comprising a solution of a copolymer as defined in any one of the preceding claims in a solvent in which said copolymer is soluble.
Claim 11
Dependent Claim
14 words
An adhesive according to claim 9 wherein said solvent is methylene chloride or toluene.
Claim 12
Dependent Claim
26 words
An adhesive according to claim 9 or 10 wherein the adhesive contains the silicone-modified acrylic copolymer in an amount of from 0.1 to 20% by weight.