Title:
THERMOPLASTIC RESIN COMPOSITION AND MOLDED ARTICLE THEREFROM
Document Type and Number:
WIPO Patent Application WO/2020/262846
Kind Code:
A1
Abstract:
A thermoplastic resin composition according to the present invention comprises: about 100 parts by weight of a polycarbonate resin; about 5 to about 15 parts by weight of a first rubber-modified vinyl-based graft copolymer in which a monomer mixture is graft-polymerized to a rubber polymer, the monomer mixture containing an aromatic vinyl-based monomer and a cyanovinyl-based monomer; about 2 to about 8 parts by weight of a second rubber-modified vinyl-based graft copolymer in which an alkyl (meth)acrylate-based monomer is graft-polymerized to a rubber polymer; about 0.5 to about 2 parts by weight of a siloxane copolyester; about 17 to about 40 parts by weight of talc; and about 13 to about 23 parts by weight of a phosphorus-based flame retardant, wherein the weight ratio of the first rubber-modified vinyl-based graft copolymer to the second rubber-modified vinyl-based graft copolymer is about 1 : 0.15 to about 1 : 0.8, and the weight ratio of the combined weight of the first rubber-modified vinyl-based graft copolymer and the second rubber-modified vinyl-based graft copolymer to the siloxane copolyester is about 1 : 0.03 to about 1 : 0.1. The thermoplastic resin composition is excellent in terms of impact resistance, hardness, mar resistance, flame retardancy, physical property balance thereof, and the like.
Inventors:
PARK SANG KI (KR)
KANG TAE GON (KR)
KANG TAE GON (KR)
Application Number:
PCT/KR2020/007324
Publication Date:
December 30, 2020
Filing Date:
June 05, 2020
Export Citation:
Assignee:
LOTTE CHEMICAL CORP (KR)
International Classes:
C08L69/00; C08G77/20; C08K3/34; C08K5/49; C08L51/04; C08L55/02; C08L83/04; C08L83/10
Foreign References:
| KR20120075076A | 2012-07-06 | |||
| KR101854433B1 | 2018-05-03 | |||
| KR20160129658A | 2016-11-09 | |||
| KR20150040673A | 2015-04-15 | |||
| KR20160077081A | 2016-07-01 | |||
| KR20160077081A | 2016-07-01 |
Other References:
See also references of EP 3992249A4
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (KR)
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