Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1981-11-12
1983-07-05
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...
524274, 524505, C08L 900
Patent
active
043919499
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
Marquis Melvyn I.
Shell Oil Company
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