Elastomer compositions with superior low temperature flexibility

Details Elastomer compositions with superior low temperature flexibility Elastomer compositions with superior low temperature flexibility

1987-11-02

1989-08-01

Schofer, Joseph L.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524490, 524481, 524483, 1525036, 1525042, C08K 501

Patent

active

048534285

ABSTRACT:
This invention relates to an environmentally durable composition which has superior low temperature dynamic properties. The composition comprises a substantially homogeneous mixture of 100 parts by weight elastomer having a fully saturated backbone, curing agent for the elastomer in amounts sufficient to crosslink the elastomer, reinforcing particulate filler, at least 20 parts by weight of particularly defined polyalphaolefin oil and, preferably, particularly defined paraffinic oil and/or naphthenic oil. Inclusion of the polyalphaolefin oil in the composition improves the low temperature dynamic properties and processability of the elastomer, which are further improved by inclusion of naphthenic oil and/or paraffinic oil therein. Particulate graphite may be incorporated into the composition to lower its friction.

REFERENCES:
patent: 4575574 (1986-05-01), Kressge
patent: 4616060 (1986-10-01), Killgoar, Jr.
patent: 4645791 (1987-02-01), Theodore et al.

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