Method of reclaiming rubber

Details Method of reclaiming rubber Method of reclaiming rubber

1984-10-18

1986-04-01

Lieberman, Allan M.

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

Synthetic resins

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

521 41, 521 425, 521 445, C08J 1100, C08J 1118, C08J 1120, C08J 1128

Patent

active

045798710

ABSTRACT:
Rubber crumb is subjected to direct reclaiming by being mixed with a plasticizer and optionally also a peptizer and, under agitation and supply of a gas atmosphere with controlled oxygen content and at a temperature of 130.degree.-200.degree. C., heated at substantially atmospheric pressure to cause the rubber particles to react with oxygen and absorb .ltoreq.10, preferably 0.5-5 liters of O.sub.2 /kg of rubber particles.

REFERENCES:
patent: 2415449 (1947-02-01), Sverdrof et al.
patent: 2653915 (1955-09-01), Elgin et al.
patent: 3700615 (1972-10-01), Scott

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