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Polyolefine resin composition

A polyolefin resin and polyethylene resin technology, which is applied in the material field of electronic appliance casings and vehicle parts, can solve the problems of poor appearance, reduced bending rigidity and fluidity of resin, insufficient scratch resistance, etc. The effect of scratch resistance

Inactive Publication Date: 2004-03-03
HANWHA TOTAL PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 rigidity and fluidity
Also, in Japanese Laid-Open Publication Sho-53-118,055, which uses glass fiber or flake-type mica, the fluidity of the resin is reduced, and the appearance is deteriorated, and in Sho-56-88,447, it is limited to polypropylene resin The ethylene content, due to the reduced ethylene content to absorb shock, the moldability is also reduced

Method used

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Experimental program
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Effect test

Embodiment Construction

[0012] Best Mode for Carrying Out the Invention

[0013] Preparation of polyolefin resin

[0014] By dry mixing 100 parts by weight of polypropylene resin, 20 parts by weight of talc used as an inorganic filler, and 5 parts by weight of silicon-grafted polyethylene (Luboten; OPTATECH Co.,), and then by introducing into a twin-screw extrusion device, The polyolefin resin was prepared in the form of a plate.

[0015] Examples and Comparative Examples

[0016] Resin compositions were prepared in the form of plates by dry mixing each of the substances in Tables 1 and 2, and then by mixing them in a molten state in a twin-screw extruder, and samples were produced by using an injection molding machine and using the following method to evaluate.

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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...

Claims

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Application Information

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IPC IPC(8): C08K3/00C08L23/10C08L51/06
CPCC08L51/06C08L23/06C08L23/10C08L2312/00C08L2666/02C08L2666/24
Inventor 金锡湲金荣元
Owner HANWHA TOTAL PETROCHEMICAL CO LTD
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