Polypropylene impact copolymers with high clarity

Details Polypropylene impact copolymers with high clarity Polypropylene impact copolymers with high clarity

1997-10-24

2000-01-18

Dawson, Robert

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...

525240, 525244, 525322, 525324, C08J 536

Patent

active

060158549

ABSTRACT:
The present invention teaches propylene-ethylene copolymers of about 5 to about 100 dg/min melt flow that have a homopolymer phase combined with a copolymer rubber phase in which the ethylene content of the rubber is between about 75 to about 95% w and a clarity of greater than 25%. The rubber content of the copolymer ranges between about 3% w to about 60% w. In addition to improved clarity, these copolymers have high stiffness (flexural modulus) and good falling weight impact toughness at low temperatures.

REFERENCES:
patent: H1722 (1998-04-01), Goode et al.
patent: 4113806 (1978-09-01), Watson et al.
patent: 4514534 (1985-04-01), DiNardo
patent: 5118757 (1992-06-01), McCullough, Jr.
patent: 5258464 (1993-11-01), McCullough, Jr. et al.
patent: 5362782 (1994-11-01), McCollough, Jr. et al.
patent: 5674630 (1997-10-01), Chatterjee
patent: 5712344 (1998-01-01), McCullough, Jr. et al.
patent: 5804620 (1998-09-01), Amos

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