Process for producing high 1,2-enriched polybutadiene latices

Details Process for producing high 1,2-enriched polybutadiene latices Process for producing high 1,2-enriched polybutadiene latices

1994-12-07

1996-03-12

Jagannathan, Vasu S.

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

Synthetic resins

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

525315, C08F27902

Patent

active

054986729

ABSTRACT:
Novel polymer compositions that comprise high 1,2-enrichment are described herein. Said polymer compositions have up to about 50% by weight of 1,2 units wherein about 25% to about 75% by weight of all 1,2 units are present in the polymer backbone. Additionally a novel process is disclosed for producing polymer compositions by dissolving a polydiene in a monomeric diene during emulsion polymerization conditions.

REFERENCES:
patent: 4742137 (1988-05-01), Ono et al.
patent: 5021381 (1991-06-01), Burroway et al.
patent: 5283294 (1994-02-01), Hsu et al.
Translation of Japan 55-69611 (May 1980).
Polymer, 1974, vol. 15, Dec. Letter, "13Cn.m.r. Spectra of Polybutadienes": 2, pp. 816-818.
Polymer, 1982, vol. 23, Feb. Makino et al., "Structural Characterization of 1,2-Polybutadiene by 13Cn.m.r. Spectroscopy": 1. Signal Assignement in Hydrogenated Polybutadienes, pp. 287-290.

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