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:
Apr. 14, 2020
Filed:
Apr. 05, 2017
Kaneka Corporation, Osaka-shi, JP;
Keika Hattori, Settsu, JP;
Shusuke Yoshihara, Settsu, JP;
KANEKA CORPORATION, Osaka-shi, JP;
Abstract
It is possible to enhance flowability of a polycarbonate resin during molding of the polycarbonate resin without impairment of inherent properties of the polycarbonate resin by blending a flowability enhancing agent and an antioxidant with the polycarbonate resin, the flowability enhancing agent including polyester which is a polycondensate of a monomer mixture, the monomer mixture being a mixture of monomers (A), (B), and (C), which are biphenol (A), bisphenol (B), and dicarboxylic acid (C), respectively, the monomer mixture containing the biphenol (A) in an amount of 0 mol % to 55 mol %, the bisphenol (B) in an amount of 5 mol % to 60 mol %, and the dicarboxylic acid (C) in an amount of 40 mol % to 60 mol %, with respect to 100 mol % of a total amount of the monomers (A), (B), and (C), and the polyester having terminals 60% or more of which are sealed with a terminal sealing agent having a number average molecular weight of not less than 160.