Shortstop for synthetic cis-1,4-polyisoprene

Details Shortstop for synthetic cis-1,4-polyisoprene Shortstop for synthetic cis-1,4-polyisoprene

1982-09-16

1984-02-07

Levin, Stanford M.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5253327, 5263402, C08F 242

Patent

active

044304870

ABSTRACT:
The present invention is an improved polymerization process which comprises polymerizing isoprene under solution polymerization conditions in a hydrocarbon solvent with a catalyst system comprising a mixture of titanium tetrachloride and a trialkylaluminum compound, wherein the polymerization is shortstopped with 4,7-diaza-decane-1,10-diamine.

REFERENCES:
patent: 3047559 (1962-07-01), Mayor et al.
patent: 3114743 (1963-12-01), Horne, Jr.
patent: 3462405 (1969-08-01), Schoenberg
patent: 3467641 (1969-09-01), Taylor
patent: 3631016 (1971-12-01), Witte et al.

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