Diene polymer composition containing copolymer derived from 2,3-

Details Diene polymer composition containing copolymer derived from 2,3- Diene polymer composition containing copolymer derived from 2,3-

1986-04-08

1988-01-26

Briggs, Sr., Wilbert J.

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

Synthetic resins

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

525232, 525236, 525245, 525247, 525314, 525 98, 526120, 526157, 526337, C08L 900, C08L 1500

Patent

active

047217537

ABSTRACT:
A diene polymer composition having improved fracture properties and a small change in the shape of extruded product is disclosed, which comprises at least 5% by weight of a copolymer composed of at least one conjugated diene (component A) having the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 are a hydrogen atom or a methyl group, and 2,3-dimethylbutadiene (component B), said copolymer having a content of cis-1,4-bond of not less than 80%.

REFERENCES:
patent: 3598795 (1971-08-01), van den Berg et al.
patent: 4134928 (1979-01-01), Moczygemba
patent: 4255296 (1981-03-01), Ogawa et al.
patent: 4294942 (1981-10-01), Henderson
patent: 4429089 (1984-01-01), Pedretti et al.

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