Process and catalyst for the preparation of syndiotactic 1,2,-po

Details Process and catalyst for the preparation of syndiotactic 1,2,-po Process and catalyst for the preparation of syndiotactic 1,2,-po

1986-10-16

1988-06-14

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

502117, 502121, 526335, 526903, C08F 460, C08F13606

Patent

active

047512750

ABSTRACT:
Syndiotactic 1,2-polybutadiene of high quality may be obtained in excellent yield by solution polymerization of butadiene-(1,3) in hydrocarbons, using organometallic mixed catalysts composed of trialkylaluminium, hydrocarbon-soluble chromium-III compounds and a dialkylphosphite corresponding to the formula ##STR1## wherein R denotes straight chained or branched C.sub.1 -C.sub.8 -alkyl and

REFERENCES:
patent: 4168357 (1979-09-01), Throckmorton et al.
patent: 4168374 (1979-09-01), Throckmorton et al.

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