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US 4,504,549 AGranted
Elastomeric silicone finishes applied to substrates and method of preparing same
AssigneeUnion Carbide Corporation
InventorsArthur N. Pines, Angelo J. Sabia
Life of this patent
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Abstract
An elastomeric silicone finish is prepared from a silicone system comprising a blend of silanols and crosslinable silicone intermediates. The blend is applied to the desired substrate and thereafter catalyzed and cured to obtain an elastomeric finish.
Claims19
A process for imparting an elastomeric finish to a substrate which comprises:
- (a) applying to said substrate a silicone blend comprising:
- (1) a crosslinkable silicone intermediate selected from the group of silicone compositions of the general formula:
- ##STR12## wherein R is individually hydrogen, OR' or a substituted or unsubstituted hydrocarbon radical containing from 1 to 12 carbon atoms;
- R' is individually a hydrocarbon radical containing from 1 to 6 carbon atoms;
- and X is either R, OR' or
- (C.sub.n H.sub.2n Si(R).sub.a (OR').sub.3-3
- wherein n is 1, 2 of 3 and a is 0, 1 or 2;
- z has a value from 10 to 500;
- and R" is individually a hydrocarbon radical containing from 1 to 12 carbon atoms and may be cyclic or noncyclic, branched or nonbranched, substituted or unsubstituted, or saturated or unsaturated and
- (2) a silanol selected from the group of silanols of the general formula:
- ##STR13## wherein R'" is individually a hydrocarbon radical containing from 1 to 12 carbon atoms and may be cyclic or noncyclic, branched or unbranched, substituted or unsubstituted or saturated or unsaturated and y has a value of from 185 to 3500;
- and
- (b) Catalyzing and curing the silicone blend onto the substrate to provide an elastomeric finish.
10 more elements
A process for imparting an elastomeric finish to a substrate which comprises:
- (a) applying to said substrate a silicone blend comprising:
- (1) a crosslinkable silicone intermediate selected from the group of silicone compositions of the general formula:
- ##STR14## wherein R is individually hydrogen, OR' or a substituted or unsubstituted hydrocarbon radical containing from 1 to 12 carbon atoms;
- R' is individually a hydrocarbon radical containing from 1 to 6 carbon atoms;
- and X is either R, OR' or
- (C.sub.n H.sub.2n)Si(R).sub.a (OR').sub.3-a
- wherein n is 1, 2 or 3 and a is 0, 1 or 2;
- y has a value from 185 to 3500;
- and R" is individually a hydrocarbon radical containing from 1 to 12 carbon atoms and may be cyclic or noncyclic, branched or nonbranched, substituted or unsubstituted, or saturated or unsaturated, and
- (2) a silanal selected from the group of silanals of the general formula:
- ##STR15## wherein R'" is individually a hydrocarbon radical containing from 1 to 12 carbon atoms and may be cyclic or noncyclic, branched or unbranched, substituted or unsubstituted or saturated or unsaturated and z has a value of from 10 to 500;
- and
- (b) Catalyzing and curing the silicone blend onto the substrate to provide an elastomeric finish.
10 more elements
Dependencies are inferred from the claim text.