Modified propylene polymer composition and process of making com

Details Modified propylene polymer composition and process of making com Modified propylene polymer composition and process of making com

1992-02-06

1992-08-25

Schofer, Joseph L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525303, 5253337, 5253338, 525384, C08F 400

Patent

active

051419955

ABSTRACT:
A modified propylene polymer having superior coloring-prevention properties is provided by a process which comprises blending a propylene polymer with (A) a polyol or a fatty acid partial ester of the polyol (B) a phenolic antioxidant and (C) a radical generating agent with a propylene polymer containing 5 ppm or more of titanium or 0.5 ppm or more of vanadium as a catalyst residue and subjecting the resultant blend to a melting and kneading treatment at a temperature of 150.degree. C.-300.degree. C.

REFERENCES:
patent: 4316971 (1982-02-01), Rim
patent: 4361971 (1982-02-01), Rim et al.

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