Polyolefine resin composition

Abstract

The present invention relates to a polyolefin resin composition comprising (100) parts by weight of a polypropylene resin, 5-45 parts by weight of an inorganic filler and 2-20 parts by weight of a silicone graft-modified polyethylene. The polyolefin resin composition of this invention is useful for the various kinds of housings in the electric appliances and parts of automobiles because it has little mechanical properties deterioration as well as excellent scratch resistance, resin flowability and mold releasability.

Description

technical field [0001] The present invention relates to polyolefin resin compositions. More specifically, the present invention relates to a polyolefin resin composition, which is a composite resin composition having excellent scratch resistance and moldability, and is used as a material for housings of electronic appliances and automotive parts. Background technique [0002] Generally, polypropylene resins have low specific gravity and good moldability, and can be easily recycled. Polypropylene resins also exhibit excellent resistance to heat, solvents, and chemicals. However, polypropylene resins are deficient in scratch resistance and surface hardness. In particular, polypropylene resins to which inorganic fillers are added for the purpose of improving bending rigidity and heat resistance are widely used in housings of home electric appliances and interior parts of automobiles. However, as the content of talc in the resin increases, flexural rigidity and heat resistanc...

AI Technical Summary

Problems solved by technology

[0004] But even with the methods mentioned above, the improvement of scratch resistance is not enough

Also, in Korean Patent Nos. 117,571 and 52,816, which use ethylene-α-olefin copolymerized rubber modified with an ester of α,β-unsaturated acid having an epoxide functional group, since the rubber component is added, the resin Reduced flexural rigi...