Stabilized polyolefin composition

Details Stabilized polyolefin composition Stabilized polyolefin composition

1989-03-16

1990-10-16

Morgan, Kriellion

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524219, 524289, 524423, 524424, 524430, 524436, 524442, C08K 515, C08K 534

Patent

active

049636057

ABSTRACT:
The invention relates to a stabilized polyolefin composition, which composition is stabilized against deterioration caused by contact with heavy metals and improved in coloration properties. This is achieved by blending a polyolefin with:
(A) a phenolic compound represented by the formula (I), ##STR1## wherein R.sub.1 represents a C.sub.1 -C.sub.3 alkyl group, (B) a metal deactivator having one or more ##STR2## groups in the side chain, and (C) a sulfur-containing compound represented by the formula (II-1), (II-2), (II-3) or (II-4): ##STR3## wherein R.sub.2 represents a C.sub.4 -C.sub.20 alkyl group, ##STR4## wherein R.sub.3 represents a C.sub.4 -C.sub.20 alkyl group, ##STR5## wherein R.sub.4 represents a C.sub.3 -C.sub.18 alkyl group, and R.sub.5 and R.sub.6 independently represent a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group, ##STR6## wherein R.sub.7 represents a C.sub.3 -C.sub.18 alkyl group.

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patent: 4839408 (1989-06-01), Fukui et al.

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