Process for regeneration of an elastomer from scrap

Details Process for regeneration of an elastomer from scrap Process for regeneration of an elastomer from scrap

2004-02-05

2008-03-11

Cain, Edward J. (Department: 1714)

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

Synthetic resins

Process of treating scrap or waste product containing solid...

C521S044500, C521S045500

Reexamination Certificate

active

07342052

ABSTRACT:
The invention relates to a process for converting an elastomer from scrap to a regenerated elastomer which comprises the steps of: (a) introducing the elastomer from scrap into a vessel; (b) agitating the elastomer from scrap; (c) heating the elastomer from scrap to a temperature below a temperature where the elastomer begins to degrade; (d) introducing an oil into the vessel and admixing together the elastomer from scrap and the oil; and (e) cooling down the so formed regenerated elastomer, whereby the regenerated elastomer has properties similar to a corresponding virgin elastomer. Steps (b) and (c) are carried out simultaneously or separatelty and steps (c) and (d) are carried out simultaneously or separately. A regenerated elastomer and its use are also disclosed.

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patent: 5883140 (1999-03-01), Fisher et al.
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