Color prevention in titanium catalyzed hydrogenated diene polyme

Details Color prevention in titanium catalyzed hydrogenated diene polyme Color prevention in titanium catalyzed hydrogenated diene polyme

1993-04-16

1994-01-18

Lipman, Bernard

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524572, 5253298, 5253317, 5253328, 5253324, 5253331, 5253332, 525338, 525339, 525383, C08F 804

Patent

active

052800580

ABSTRACT:
The present invention is an improvement upon a process for hydrogenating a diene polymer by contacting the polymer in the presence of hydrogen with a titanium hydrogenation catalyst. The improvement comprises preventing discoloration of the hydrogenated polymer by treating it with water, a peroxide or alcohol in the absence of oxygen and adding a non-phenolic antioxidant to the polymer.

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