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...
Patent
1982-08-19
1983-12-06
Marquis, Melvyn I.
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...
524528, 525232, 525236, C08K 304
Patent
active
044194803
ABSTRACT:
A soft, fatigue resistant vulcanizate adapted for transmitting load between moving mechanical parts comprising (a) 100 parts by weight of crosslinked elastomer, (b) a fatigue life enhancing amount of substantially internally saturated, substantially linear polymer that (i) is made from monomers consisting essentially of isobutylene, (ii) is a strain crystallizable, elastic solid at 20.degree. C. and (iii) has a viscosity average molecular weight (Flory) above about 1.3 million, (c) about 5-200 parts by weight particulate comprising carbon black, said elastomer being crosslinked with (d) curative in an amount sufficient to crosslink said elastomer, wherein said polymer of (b) is dispersed throughout said elastomer of (a) in a discrete microscopic phase.
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Vistanex Polyisobutylene Properties and Applications, Exxon Chemicals, 1974, pp. 1 and 20.
Heat Resistance and Bynamic Characteristics of Bromobutyl Modified Elastomer Blends, Richie et al., American Chemical Society, New Orleans, La., Oct. 7-10, 1975.
Killgoar, Jr. Paul C.
Tabar Ronald J.
Ford Motor Company
Lilling Herbert J.
Marquis Melvyn I.
May Roger L.
Melotik Lorraine S.
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