CROSSLINKABLE HYDROPHILIC MATERIALS FROM POLYMERS HAVING PENDENT MICHAEL DONOR GROUPS
First Claim
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1. A process for making a substrate bearing a coating of a crosslinked polymer composition on at least one surface thereof, comprising the steps of:
- a) coating onto said substrate a polymer composition comprising i) a first component polymer comprising a plurality of polymerized monomer units derived from an ethylenically unsaturated monomer having pendent hydrophilic groups, and a plurality of polymerized monomer units derived from an ethylenically unsaturated monomer having pendent Michael donor groups; and
ii) a crosslinking agent comprising at least two Michael acceptor groups, and iii) optionally a monoacryl component; and
b) crosslinking said first component polymer and crosslinking agent, in the presence of a basic catalyst.
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Abstract
The present invention provides crosslinkable compositions useful in the preparation of hydrophilic gels, and are prepared from polymers having pendent hydrophilic groups, and pendant Michael donor groups, and crosslinked by polyacryl Michael acceptor compounds.
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Citations
22 Claims
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1. A process for making a substrate bearing a coating of a crosslinked polymer composition on at least one surface thereof, comprising the steps of:
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a) coating onto said substrate a polymer composition comprising i) a first component polymer comprising a plurality of polymerized monomer units derived from an ethylenically unsaturated monomer having pendent hydrophilic groups, and a plurality of polymerized monomer units derived from an ethylenically unsaturated monomer having pendent Michael donor groups; and
ii) a crosslinking agent comprising at least two Michael acceptor groups, and iii) optionally a monoacryl component; and
b) crosslinking said first component polymer and crosslinking agent, in the presence of a basic catalyst. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification