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US 5,328,971 AGranted
Copolymers of epoxybutadiene and maleimides
AssigneeEastman Kodak Company
InventorsRichard W. Blevins, S. Richard Turner
Life of this patent
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Abstract
Copolymers are produced when a 3,4-epoxy-1-butene monomer is copolymerized with a maleimide monomer in the presence of a free radical initiator. The copolymerization involves both 1,2-propagation and 1,4-propagation of 3,4-epoxy-1-butene. Products of this invention can be cast as clear films and can also be used as reactive polymers.
Claims3
A process for the preparation of a coplymer comprising polymerized repeating monomeric units of (a) 3,4-epoxy-1-butene and (b) a maleimide, which process comprises:
- contacting (i) a butadiene monoepoxide reactant having up to about 12 carbon atoms with (ii) a maleimide reactant having up to about 24 carbon atoms;
- said process being conducted in the presence of a free radical initiator at a temperature from about -10.degree. C. to about 180.degree. C.
Dependencies are inferred from the claim text.