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:
May. 27, 2003
Filed:
Oct. 16, 2000
Hirofumi Takase, Osaka, JP;
Yoichiro Makimura, Osaka, JP;
Takiron Co., Ltd., Osaka, JP;
Abstract
An additive-containing resin molded article which suffers from little exudation or vaporization of an additive and sustains the effect of the additive for a long period of time and in which reductions in various physical properties due to molecular weight reduction of a polyester resin are suppressed, and a process for producing the same are provided. When a polyester resin is heat-melted and molded into a prescribed shape by means of an extruder etc., a bi- or multi-functional additive having at least one of a functional hydroxyl group, carboxyl group, amino group, and ester bond is added and allowed to react with the polymer molecules of the molten polyester resin to obtain an additive-containing resin molded article in which the additive is bonded to the polymer molecules through an ester linkage or an amide linkage.