Catalyzed degradation of thermoplastic polyolefins and incorpora

Details Catalyzed degradation of thermoplastic polyolefins and incorpora Catalyzed degradation of thermoplastic polyolefins and incorpora

1998-04-22

2000-03-28

Yoon, Tae

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

Synthetic resins

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

521 405, 524 62, 528485, 528490, 523351, C08J 1110, C08L 95100

Patent

active

060432896

ABSTRACT:
A process for degrading thermoplastic polyolefins, in particular high or medium density polyethylenes, uses as a catalyst a mineral solid containing copper or a mineral solid containing aluminium and silicon and with an acid nature, at a temperature of 200.degree. C. to 450.degree. C., degradation being accompanied by incorporation of the degradation products into a heavy hydrocarbon such as a bitumen base.
Incorporating degraded thermoplastic polyolefins, in particular degraded high or medium density polyethylenes, into heavy hydrocarbons can produce compositions with industrial and road applications.

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