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:
Jul. 29, 2025
Filed:
Sep. 02, 2020
Toyobo Co., Ltd., Osaka, JP;
TOYOBO MC CORPORATION, Osaka, JP;
Abstract
The present invention is a thermoplastic polyester resin composition which in a composition including an inorganic-reinforcing material such as glass fiber, maintains a good surface appearance while having high strength and high stiffness, has little warpage deformation, and generates very little burr; and an inorganic-reinforced thermoplastic polyester resin composition comprising 20 to 60% by mass of a polybutylene terephthalate resin (A), 5 to 20% by mass of an amorphous resin (B), 30 to 60% by mass of an inorganic-reinforcing material (C), 0.5 to 10% by mass of an ethylene-glycidyl (meth)acrylate copolymer (D), and 0.05 to 2% by mass of a transesterification inhibitor (E), wherein the composition has a melt viscosity of no less than 0.5 kPa·s and no more than 1.5 kPa·s at 265° C. and a shear rate of 10 sec.