Melt and color stabilization of aliphatic polyketones

Details Melt and color stabilization of aliphatic polyketones Melt and color stabilization of aliphatic polyketones

1997-08-08

1999-10-26

Mullis, Jeffrey C.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524397, 524399, C08K 310, C08K 5053

Patent

active

059730480

ABSTRACT:
An aliphatic ketone polymer composition having during melt processing improved melt stabilization against significant cross linking and reduced discoloration wherein the composition has in addition to the aliphatic ketone polymer an additive stabilizer comprising a polyol such as sorbitol and an aluminum hydroxide, or an alumina hydrogel, or decomposition products thereof such as pseudo-boehmite. The additive is present in an amount of about 0.01 to about 10.0 weight % based on the weight of ketone polymer and additive.

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Tsukamoto, CAPLUS AN 1996: 443729, abstracting JP 08/00093, Apr. 1996.

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