Polyolefin resin compositions, methods of making such compositio

Details Polyolefin resin compositions, methods of making such compositio Polyolefin resin compositions, methods of making such compositio

1991-11-20

1994-05-24

Michl, Paul R.

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...

525903, C08K 728

Patent

active

053149467

ABSTRACT:
Polyolefin molding compositions and molded articles thereof exhibit exceptional mechanical strength, dimensional accuracy and heat deformation characteristics and are provided by melt-blending a polyolefin base resin, a liquid-crystal polyester resin, and a filler material. The liquid-crystal polyester is one which exhibits optical anisotropic characteristics in the melt-phase and preferably has a melt-viscosity of 20000 to 50 Poise as determined at a temperature of 310.degree. C. and a shear rate of 1200 sec.sup.-1. The liquid-crystal polyester resin forms a three-dimensional network structure throughout the polyolefin base resin and envelops substantially all of the filler material therewithin. As a result, the molded articles of the polyolefin compositions can be employed in end-use applications which require improved mechanical strength, dimensional accuracy and/or heat deformation characteristics.

REFERENCES:
patent: 4386174 (1983-05-01), Cogswell et al.
patent: 4434262 (1984-02-01), Buckley et al.
patent: 4699935 (1987-10-01), Sano
patent: 4728698 (1988-03-01), Isayev et al.

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