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:
Dec. 21, 2004
Filed:
Sep. 07, 2001
Applicant:
Inventors:
Akira Miyamoto, Kurashiki, JP;
Kazuhiro Shibuya, Kurashiki, JP;
Hiroshi Hachiya, Kurashiki, JP;
Chung Neng Wu, Tainan, TW;
Wen-Yi Su, Tainan, TW;
Assignee:
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/49 ;
U.S. Cl.
CPC ...
C08K 5/49 ;
Abstract
Disclosed is a method for producing a flame retardant polycarbonate resin composition by using a screw extruder, which comprises extruding a resin component (mainly comprising a polycarbonate) and an organic phosphorus compound having an acid value of not more than 0.1 mg KOH/g while kneading, wherein the temperature of the resin component in the extruder is not higher than 300° C., and the residence time of the resin component in the extruder is not more than 40 seconds.