Paintable, surface-damage resistant compounded grade thermoplast

Details Paintable, surface-damage resistant compounded grade thermoplast Paintable, surface-damage resistant compounded grade thermoplast

1998-12-28

2000-12-26

Nutter, Nathan M.

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

Synthetic resins

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

525197, 525240, C08F 800, C08L 2012

Patent

active

061661392

ABSTRACT:
A painted thermoplastic olefin (TPO) comprising a blend of elastomer and polypropylene. The polypropylene has a number average molecular weight of about 35,000 to about 70,000 and a polypropylene percent crystallinity of about 45 to about 70%. The elastomer has a number average molecular weight of about 20,000 to about 60,000 and an elastomer crystallinity of about 14 to about 60%. The TPO has a polypropylene to elastomer viscosity ratio of about 0.2:1 to about 30:1.

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