Directly paintable polypropylene-based composite composition

Details Directly paintable polypropylene-based composite composition Directly paintable polypropylene-based composite composition

2011-06-07

2011-06-07

Mullis, Jeffrey C (Department: 1765)

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...

C524S505000, C525S070000, C525S080000, C525S093000

Reexamination Certificate

active

07956117

ABSTRACT:
The present invention relates to a polypropylene-based composite composition which is directly paintable without treatment of a primer comprised of chlorinated polyolefins. According to the present invention, the polypropylene-based composite composition comprises 30 to 70 weight percent, based on total weight of said polypropylene-based composite composition, of a polypropylene-based resin; 10 to 20 weight percent, based on total weight of said polypropylene-based composite composition, of a polyolefin based thermoplastic elastomer; 10 to 30 weight percent, based on total weight of said polypropylene-based composite composition, of a mineral filler; and 10 to 20 weight percent, based on total weight of said polypropylene-based composite composition, of an acrylate functional polymer additive.The composition does not need treatment of primer upon painting and thus has advantageous in terms of improvement of productivity resulting from reduction in production cost and production time and environment protection resulting from elimination of use of a primer comprised of chlorinated polyolefins.

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