The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2025
Filed:
Nov. 22, 2019
Techno-umg Co., Ltd., Tokyo, JP;
Hiroyuki Atsuta, Tokyo, JP;
TECHNO-UMG CO., LTD., Tokyo, JP;
Abstract
The thermoplastic resin composition includes: a (meth)acrylic acid ester copolymer obtained by polymerizing a vinyl monomer mixture containing 50% by mass or more and less than 80% by mass of a (meth)acrylic acid ester monomer and 12-39% by mass of an aromatic vinyl monomer; a hindered amine compound having a molecular weight of 200-1800; and an ultraviolet absorber compound having a maximum absorption wavelength at 250-300 nm. The thermoplastic resin composition optionally includes a graft copolymer, and the hindered amine compound is present in an amount of 0.4-1.8 parts by mass, the ultraviolet absorber compound is present in an amount of 0.1-1.6 parts by mass, and a sum of the amounts of the hindered amine compound and the ultraviolet absorber compound is not more than 2.0 parts by mass, each relative to 100 parts by mass of a combination of the (meth)acrylic acid ester copolymer and the graft copolymer.