Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Patent
1991-02-11
1992-03-10
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Process of treating scrap or waste product containing solid...
521 41, 521 455, C08J 1104
Patent
active
050950401
ABSTRACT:
Old rubber tires are physically shredded and a sized fraction of the shreds is fed into a heated rotating stainless steel tube in which the temperature is carefully controlled so that the shreds are converted to a char and a No. 4 oil product both of which are separately recovered.
REFERENCES:
patent: 3823223 (1974-07-01), Liska et al.
patent: 3873474 (1975-03-01), Ficker
patent: 4146508 (1979-03-01), Maxwell
patent: 4469817 (1984-09-01), Hayashi et al.
patent: 4665101 (1987-05-01), Ficker
Field Lawrence I.
Merriam Andrew E. C.
Michl Paul R.
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