Thermoplastic polymer alloy compositions and in-line compounding

Details Thermoplastic polymer alloy compositions and in-line compounding Thermoplastic polymer alloy compositions and in-line compounding

1999-06-30

2000-11-28

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...

525185, 525 95, 525 97, 525 98, 525 55, 525191, 525208, 525221, 525222, 525387, 2641772, 264198, 524451, 524445, 524449, 524492, C08K 326

Patent

active

061536806

ABSTRACT:
Thermoplastic polymer alloy compositions and a process for preparing the compositions are provided comprising a blend of polypropylene, uncrosslinked ethylene copolymer, ionomeric copolymer of ethylene and .alpha.,.beta.-unsaturated C.sub.3 -C.sub.8 carboxylic acid, crosslinking agent, and silicone elastomer. The compositions may further comprise particulate filler, color concentrate and/or coloring pigment. The compositions are particularly useful for forming interior skin sheets for applications where low gloss and high scuff resistance are desired without the need for painting. A one step process for preparing moldable sheets from the thermoplastic polymer alloy compositions by in-line compounding and reactive extrusion is also provided which eliminates separate compounding and pelletizing processing steps as precursors to the sheet extrusion process.

REFERENCES:
patent: 5206294 (1993-04-01), Dawson
patent: 5721314 (1998-02-01), Hausmann

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