High-frequency-weldable polymer mixture

Details High-frequency-weldable polymer mixture High-frequency-weldable polymer mixture

1997-12-22

2000-12-19

Buttner, David J.

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

Synthetic resins

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

525 92B, 525179, 525183, C08L 7700, C08L 2312

Patent

active

061628654

ABSTRACT:
High-frequency-weldable polymer mixture containing: a copolymer of ethylene with comonomers selected from vinyl esters of saturated C.sub.2 -C.sub.8 carboxylic acids, C.sub.1 -C.sub.12 -alkyl acrylates and -methacrylates, optionally with carbon monoxide as termonomer; and polyamide-containing thermoplastic polyolefin which, in turn, contains a polyamide, polyolefin and, optionally, compatibilizing agents. The polyolefins can be a propylene copolymer with polypropylene blocks and random copolymer blocks, or a mixture of polypropylene and random copolymers. The polymer mixture has good high-frequency weldability and good weld seam strength as well as thermal stability accompanied by a low temperature dependency of the dielectric loss factor.

REFERENCES:
patent: 5179164 (1993-01-01), Lausberg

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