REACTIVE HYDROPHILIC OLIGOMERS
First Claim
Patent Images
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 crosslinkable oligomer composition comprising;
(1) a first component oligomer comprising a plurality of polymerized monomer units having pendent, free-radically polymerizable functional groups, and a plurality of polymerized monomer units having pendent, hydrophilic poly(alkylene oxide) groups; and
(2) a second component oligomer comprising a plurality of polymerized monomer units having pendent, photoinitiator groups; and
(b) photochemically crosslinking said first component oligomer and second component oligomer, in the presence of a photoinitiator, by forming covalent bonds between said pendent, free-radically polymerizable functional groups of said first component oligomer said second component oligomer.
0 Assignments
0 Petitions
Accused Products
Abstract
Hydrophilic compositions are described, which are prepared from a first oligomer containing pendent polymerizable groups and pendent hydrophilic groups, crosslinked with a co-reactive second component oligomer possessing photoinitiator groups. The compositions may be used as in preparation of hydrophilic gel coatings or layers for medical devices.
-
Citations
23 Claims
-
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 crosslinkable oligomer composition comprising; (1) a first component oligomer comprising a plurality of polymerized monomer units having pendent, free-radically polymerizable functional groups, and a plurality of polymerized monomer units having pendent, hydrophilic poly(alkylene oxide) groups; and (2) a second component oligomer comprising a plurality of polymerized monomer units having pendent, photoinitiator groups; and (b) photochemically crosslinking said first component oligomer and second component oligomer, in the presence of a photoinitiator, by forming covalent bonds between said pendent, free-radically polymerizable functional groups of said first component oligomer said second component oligomer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. An absorbent dressing comprising a crosslinked hydrophilic gel absorbent layer of a crosslinkable oligomer composition comprising:
-
(1) a first component oligomer comprising a plurality of polymerized monomer units having pendent, free-radically polymerizable functional groups, and a plurality of polymerized monomer units having pendent, hydrophilic poly(alkylene oxide) groups; and (2) a second component oligomer comprising a plurality of polymerized monomer units having pendent, photoinitiator groups. - View Dependent Claims (19, 20, 21, 22, 23)
-
Specification