Process and isomerizing agent for isomerizing partially hydrogen

Details Process and isomerizing agent for isomerizing partially hydrogen Process and isomerizing agent for isomerizing partially hydrogen

1993-08-24

1994-05-24

Lipman, Bernard

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

Synthetic resins

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

5253328, 5253329, 5253331, 5253332, 525338, 525339, 525340, 525366, C08F 800

Patent

active

053149670

ABSTRACT:
A process for producing isomerized partially hydrogenated diene polymers containing unsaturation in endo and exo trisubstituted chain configurations while substantially eliminating the unsaturation in the 1,4-trans configuration remaining after hydrogenation, by isomerizing the unsaturation in the presence of a phosphine, borane, or alkali alkoxide isomerizing agent.

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patent: 3789090 (1974-01-01), Otsuki et al.
patent: 3983183 (1976-09-01), Kampf
patent: 4012566 (1977-03-01), Zelinski et al.
patent: 4207409 (1980-06-01), Ladenberger et al.
patent: 4496613 (1985-01-01), Zagefka et al.
patent: 4990573 (1991-02-01), Andreossi et al.

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