Devulcanization of cured rubber

Details Devulcanization of cured rubber Devulcanization of cured rubber

2006-01-31

2006-01-31

Yoon, Tae H. (Department: 1714)

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

Synthetic resins

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

C521S040000, C521S040500, C521S042500, C521S044000

Reexamination Certificate

active

06992116

ABSTRACT:
The present invention discloses a process for devulcanizing cured rubber into devulcanized rubber that is capable of being recompounded and recured into useful rubber products, said process comprising heating the cured rubber to a temperature which is within the range of about 150° C. to about 300° C. under a pressure of at least about 3.4×106Pascals in the presence of a mixture of carbon dioxide and 2-butanol.

REFERENCES:
patent: 4104205 (1978-08-01), Novotny et al.
patent: 5284625 (1994-02-01), Isayev et al.
patent: 5602186 (1997-02-01), Myers et al.
patent: 5798394 (1998-08-01), Myers et al.
patent: 5891926 (1999-04-01), Hunt et al.
patent: 5998490 (1999-12-01), Serkiz
patent: 6387965 (2002-05-01), Benko et al.
patent: 6548560 (2003-04-01), Kovalak et al.
patent: 2003/0125401 (2003-07-01), Tzoganakis

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