Stabilized polypropylene compositions

Details Stabilized polypropylene compositions Stabilized polypropylene compositions

1981-09-18

1983-07-05

Foelak, Morton

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524291, C08K 304

Patent

active

043919413

ABSTRACT:
This disclosure relates to the use of certain heat-treated carbon blacks as stabilizers against the effects of degradation caused by visible and ultraviolet light in the preparation of polypropylene resin compositions containing conventional antioxidants which impart thermal stability to the polypropylene resin.

REFERENCES:
patent: 3244667 (1966-04-01), Burgess
patent: 3464943 (1969-09-01), Newland et al.
patent: 3502613 (1970-03-01), Berger
patent: 3830774 (1974-08-01), Jordan et al.
patent: 3959413 (1976-05-01), Schwarzenbach et al.
patent: 4075156 (1978-02-01), Johnson
patent: 4097656 (1978-06-01), Dany et al.
patent: 4216137 (1980-08-01), Wang et al.
patent: 4287117 (1981-09-01), Theysohn et al.
patent: 4321162 (1982-03-01), Guffens et al.

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