Abstract An epoxidized acetylene-conjugated diene random copolymer, of which epoxy equivalent is within the range of from 50 to 1,000, is obtained by epoxidizing an acetylene-conjugated diene random copolymer, in which acetylene and conjugated diene are bonded linearly and randomly, the block character P is within the range of from 0.8 to 1.2 and the acetylene content is less than 60 mol%, with an organic peracid. The epoxidized acetylene-conjugated diene random copolymer is more reactive than the crude random copolymer and yields an excellent film, a coating material or a shaped article. Further by adding some of curing agents to the epoxidized acetylene-conjugated diene random copolymer, the cure rate of the epoxidized copolymer is fairly enhanced.
An epoxidized acetylene-conjugated diene random copolymer of which epoxy equivalent is within the range of from 50 to 1,000, produced by epoxidizing an acetylene-conjugated diene random copolymer, in which acetylene and conjugated diene are bonded linearly and randomly, the block character P is within the range of from 0.8 to 1.2 and the acetylene content is less than 60 mol% with an organic peracid.
Claim 2
Dependent Claim
64 words
An epoxidized acetylene-conjugated diene random copolymer of which epoxy equivalent is within the range of from 50 to 1,000, produced by epoxidizing an acetylene-conjugated diene random copolymer, in which acetylene and conjugated diene are bonded linearly and randomly, the block character P is within the range of from 0.8 to 1.2 and the acetylene content is less than 60 mol% with an organic peracid.
Claim 3
Dependent Claim
17 words
An epoxidized acetylene-conjugated diene random copolymer according to claim 1, in which the conjugated diene is butadiene.
Claim 4
Dependent Claim
17 words
An epoxidized acetylene-conjugated diene random copolymer according to claim 1, in which the conjugated diene is isoprene.
Claim 5
Dependent Claim
48 words
A curable epoxidized acetylene-conjugated diene random copolymer composition which comprises 100 parts of the epoxidized acetylene-conjugated diene copolymer of claim 1 and from 0.001 to 1,000 parts of curing agent selected from the group consisting of the curing agent for epoxy group and the promotor for oxidation cure.
Claim 6
Dependent Claim
19 words
A curable epoxidized acetylene-conjugated diene random copolymer composition according to claim 4, in which the conjugated diene is butadiene.
Claim 7
Dependent Claim
19 words
A curable epoxidized acetylene-conjugated diene random copolymer composition according to claim 4, in which the conjugated diene is isoprene.