Assymetric block copolymers and corresponding adhesive formulati

Details Assymetric block copolymers and corresponding adhesive formulati Assymetric block copolymers and corresponding adhesive formulati

1983-04-18

1984-04-24

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 92, 525 93, 525 96, 525 97, 525 99, 524274, 524505, C08L 900

Patent

active

044449534

ABSTRACT:
A novel block copolymer having particular utility in adhesive compositions has the structure (A-B).sub.x Y(C).sub.z where A is a poly(monoalkenyl) block, B and C are poly(conjugated diene) polymer blocks, Y is the residue of a multifunctional coupling agent, and x plus z is greater than 6. Also disclosed are adhesive compositions containing such block copolymers.

REFERENCES:
patent: 3766295 (1973-10-01), Crossland et al.
patent: 3975460 (1976-08-01), Davison et al.
patent: 4096203 (1978-06-01), St. Clair
patent: 4391949 (1983-07-01), St. Clair

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