Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
85 words
A composition which comprises a cross-linked organosilicon polymer comprised of alternating (i) polycyclic hydrocarbon residues derived from polycyclic polyenes having at least two non-aromatic, non-conjugated carbon-carbon double bonds in their rings and (ii) residues derived from the group consisting of cyclic polysiloxanes and/or tetrahedral siloxysilanes, linked through carbon to silicon bonds, characterized in that the composition comprises a continuous phase of the cross-linked organosilicon polymer and a discontinuous phase of a low molecular weight hydrocarbon elastomer having at least two hydrosilation reactable carbon-carbon double bonds.
Claim 2
Dependent Claim
43 words
A composition as claimed in claim 1 which contains 0.5 to 20 weight % of the elastomer, wherein the elastomer is present as particles of 0.001 to 100 micron diameter and wherein the elastomer contains no more than 50 mole % >C=C< groups.
Claim 3
Dependent Claim
42 words
A composition as claimed in claim 2 which contains 3 to 12 weight % of the elastomer, wherein the elastomer is present as particles of 0.1 to 1.5 micron diameter and the elastomer contains no more than 25 mole % >C=C< groups.
Claim 4
Dependent Claim
30 words
A composition as claimed in claim 3 which contains 5 to 10 weight % of the elastomer, and wherein the elastomer contains no more than 15 mole % >C=C< groups.
Claim 5
Dependent Claim
46 words
A composition as claimed in any of the preceding claims wherein the elastomer is selected from the group consisting of ethylene-propylene-diene terpolymers partially hydrogenated low molecular weight polyisoprene, partially hydrogenated butadiene polymers, partially hydrogenated styrene-butadiene polymers, and butyl rubber having a molecular weight less than 100,000.
Claim 6
Dependent Claim
19 words
A composition as claimed in claim 6 wherein the elastomer is selected from the group consisting of ethylene-propylene-diene terpolymers.
Claim 7
Dependent Claim
43 words
A composition as claimed in any of the preceding claims wherein the residues (a) (ii) are derived from the cyclic polysiloxane and the polycyclic hydrocarbon residues are derived from polycyclic hydrocarbon compounds selected from the group consisting of dicyclopentadiene, methyl dicyclopentadiene and tricyclopentadiene.
Claim 8
Dependent Claim
81 words
A prepolymer composition which comprises a hydrosilation cross-linkable organosilicon prepolymer composition which is the partial reaction product of (i) polycyclic polymers having at least two non-aromatic,non-conjugated hydrosilation reactive carbon-carbon double bonds in their rings and (ii) cyclic polysiloxanes or tetrahedral siloxysilanes having at least two hydrosilation reactive ≡SiH groups wherein at least one of (i) or (ii) has three or more hydrosilation reactive groups, characterized in that it comprises a hydrocarbon elastomer having at least two hydrosilation reactable carbon-carbon double bonds.
Claim 9
Dependent Claim
43 words
A prepolymer composition as claimed in claim 8 which contains 0.5 to 20 weight % of the elastomer, the hydrocarbon elastomer contains no more than 50 mole % >C=C< groups, and the elastomer is present as particles of 0.001 to 100 micron diameter.
Claim 10
Dependent Claim
42 words
A prepolymer composition as claimed in claim 9 which contains 5 to 10 weight % of the elastomer, the elastomer contains no more than 15 mole % >C=C< groups, and the elastomer is present as particles of 0.1 to 1.5 micron diameter.