Thermoformable thermoplastic polymer alloy compositions

Details Thermoformable thermoplastic polymer alloy compositions Thermoformable thermoplastic polymer alloy compositions

1995-12-11

1998-02-24

Warzel, Mark L.

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

Synthetic resins

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

525 74, 525 78, C08L 5100

Patent

active

057213143

ABSTRACT:
Thermoplastic polymer alloy compositions are provided comprising a blend of polypropylene, ethylene copolymer ionomer resin, ethylene/glycidyl acrylate or methacrylate copolymer, uncrosslinked ethylene propylene rubber, acid or anhydride grafted polypropylene, an agent for crosslinking the rubber and/or catalyzing an epoxide/acid reaction, and optionally a poly-.alpha.-olefin. The compositions are particularly useful for thermoforming of articles having high deep-draw ratios. The presence of the poly-.alpha.-olefin assists to improve embossing and grain retention of embossed sheets, particularly at high deep-draw ratios.

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