Thermoplastic resin composition and molded product comprising same

A technology of thermoplastic resin and composition, applied in the field of thermoplastic resin composition and molded products containing the thermoplastic resin composition, which can solve the problems of low gloss, weather resistance of external material physical properties and surface texture limitations, and achieve uniformity Effects of surface gloss, good aesthetics and soft feel, and excellent weather resistance

Active Publication Date: 2021-07-23
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using crystalline resins, low gloss can be achieved, but there are limitations in improving physical properties of exterior materials such as weather resistance and surface texture

Method used

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  • Thermoplastic resin composition and molded product comprising same
  • Thermoplastic resin composition and molded product comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to Embodiment 10 and comparative example 1 to comparative example 3

[0110] As shown in Table 1 below, components were prepared according to the contents and kneaded and extruded at 280° C. using a twin-screw extruder to prepare pellets. In addition, a 0.15T sheet was prepared at a molding temperature of 220° C. using the obtained pellets. Then, the gloss and surface roughness values ​​of the films were measured. In addition, the prepared pellets were injected at a molding temperature of 220° C. to prepare test pieces for measuring physical properties. Then, the tensile strength and impact strength of the test specimens were measured.

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Abstract

The present invention relates to a thermoplastic resin composition and a molded product comprising the same. More specifically, the thermoplastic resin composition comprises 100 parts by weight of a base resin consisting of A-1) 10-30 wt% of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer comprising an acrylate rubber with an average diameter of 0.05-0.15 micron, A-2) 20-40 wt% of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer comprising an acrylate rubber with an average diameter of 0.3-0.5 micron, B) 0-35 wt% of an aromatic vinyl polymer, and C) 10-60 wt% of a polymethacrylate; and D) 0.5-10 parts by weight of a polyamide. According to the present invention, it is possible to provide a low-gloss thermoplastic resin composition having mechanical properties and processability equal to or superior to conventional ASA-based resins, having excellent weather resistance, exhibiting good aesthetics and softness due to a low surface roughness value thereof, and having uniform surface gloss; and a molded product comprising the low gloss thermoplastic resin composition.

Description

technical field [0001] [Cross Reference to Related Application] [0002] This application claims Korean Patent Application No. 10-2019-0110417 filed with the Korean Intellectual Property Office on September 6, 2019 and Korean re-filed with the Korean Intellectual Property Office on August 24, 2020 based on the priority of the above patent Priority to Patent Application No. 10-2020-0106135, the disclosures of each of these two patent applications are incorporated herein by reference. [0003] The present invention relates to a thermoplastic resin composition and a molded article comprising the thermoplastic resin composition, more particularly, relates to one having mechanical properties and processing properties equal to or better than conventional ASA-based resins; having excellent weather resistance; A low-gloss thermoplastic resin composition exhibiting good aesthetics and soft feeling due to its low surface roughness value; and having a uniform surface gloss, and a low-gl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/04C08L25/12C08L33/12C08L77/06
CPCC08L51/04C08L33/12C08L2205/025C08L2205/035C08L25/12C08L77/06C08L2205/03C08L2666/18C08L25/14C08L51/003C08L2205/18C08L2207/53
Inventor 成多恩金泰勋朴春浩安勇希赵旺来金豪焄张正敃
Owner LG CHEM LTD
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