Thermoplastic resin composition and molded article using same

Patent metadata

Field	Value
Publication number	US-11339286-B2
Application number	US-201816769711-A
Country	US
Kind code	B2
Filing date	Nov 1, 2018
Priority date	Dec 5, 2017
Publication date	May 24, 2022
Grant date	May 24, 2022

Abstract

Disclosed are a thermoplastic resin composition comprising, based on (A) 100 parts by weight of a base resin comprising (A-1) 75 to 90 wt % of a polycarbonate resin, (A-2) 5 to 15 wt % of an acryl-based graft copolymer, and (A-3) 5 to 15 wt % of an aromatic vinyl-vinyl cyanide copolymer, (B) 5 to 20 parts by weight of a polyamide-polyalkylene glycol copolymer, and (C) 4 to 6 parts by weight of a cross-linked aromatic vinyl-vinyl cyanide copolymer, and a molded article made using the same.

First claim

The invention claimed is:

1. A thermoplastic resin composition, comprising
based on 100 parts by weight of a base resin comprising
(A-1) 75 to 90 wt % of a polycarbonate resin;
(A-2) 5 to 15 wt % of an acryl-based graft copolymer; and
(A-3) 5 to 15 wt % of an aromatic vinyl-vinyl cyanide copolymer,
(B) 5 to 20 parts by weight of a polyamide-polyalkylene glycol copolymer; and
(C) 4 to 6 parts by weight of a cross-linked aromatic vinyl-vinyl cyanide copolymer.

2. The thermoplastic resin composition of claim 1 , wherein the thermoplastic resin composition further comprises an (D) acrylonitrile-butadiene-styrene graft copolymer.

3. The thermoplastic resin composition of claim 2 , wherein thermoplastic resin composition comprises 1 to 5 parts by weight of the (D) acrylonitrile-butadiene-styrene graft copolymer based on 100 parts by weight of the base resin.

4. The thermoplastic resin composition of claim 1 , wherein the (B) polyamide-polyalkylene glycol copolymer is a polyamide-polyethylene glycol copolymer.

5. The thermoplastic resin composition of claim 1 , wherein the (C) cross-linked aromatic vinyl-vinyl cyanide copolymer is a cross-linked styrene-acrylonitrile copolymer.

6. The thermoplastic resin composition of claim 1 , wherein the (B) polyamide-polyalkylene glycol copolymer has a weight average molecular weight of 5,000 to 20,000 g/mol.

7. A molded article using the thermoplastic resin composition of claim 1 .

8. The molded article of claim 7 , having a surface resistance of 1011 to 1013 Ω/□.

9. The molded article of claim 7 , having a gloss of 3 to 5 GU measured at a reflection angle of 60° using the ASTM D523 gloss measurement test method.

10. The molded article of claim 7 , having a thermal deflection temperature of 120 to 130° C. measured according to ASTM D648 heat deflection temperature test method.

11. The molded article of claim 7 , wherein the molded article is an automobile interior component.

Assignees

• Lotte Chemical Corp

Inventors

• Kim Doo Young
• Kwon Keehae
• Park Jungeun

Classifications

• C08L69/00 Primary

  Compositions of polycarbonates; Compositions of derivatives of polycarbonates · CPC title

• C08L51/003

  grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C08L51/04, C08L51/06 take precedence) · CPC title

• C08L25/12

  with unsaturated nitriles · CPC title

• C08L77/00

  Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain (of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08); Compositions of derivatives of such polymers · CPC title

• C08L55/02

  ABS [Acrylonitrile-Butadiene-Styrene] polymers · CPC title