Process for producing modified propylene polymer composition

Details Process for producing modified propylene polymer composition Process for producing modified propylene polymer composition

1988-06-08

1990-05-08

Lipman, Bernard

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...

524351, 524352, 524571, 524574, 524580, 524581, 524583, 5253317, 5253338, 525370, C08K 509

Patent

active

049239180

ABSTRACT:
A process for producing a modified propylene polymer composition is disclosed, which comprises melt-kneading a propylene polymer having a considerable titanium or vanadium content as a catalyst residue and having incorporated therein a phenolic antioxidant in the presence of a radical generator in combination with a specific amount of a zinc salt of a carboxylic acid. The resulting modified propylene polymer composition exhibits freedom from coloring as well as improved moldability.

REFERENCES:
patent: 4582878 (1986-04-01), Chiba et al.

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