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, 1997
Filed:
Jul. 21, 1995
Applicant:
Inventors:
Assignee:
General Electric Company, Pittsfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
528199 ; 528196 ; 528198 ; 528200 ; 502150 ; 502200 ; 524107 ; 524115 ; 524155 ; 524158 ; 524165 ; 524745 ; 524746 ;
Abstract
The purpose of the present invention is to provide a method for manufacturing polycarbonate in which polycarbonate having outstanding color matching, outstanding thermal properties, particularly retention stability during molding, and outstanding water resistance can be effectively and easily manufactured. In the method for manufacturing polycarbonate of the present invention, an aromatic dihydroxy compound and a carbonic acid ester are subjected to melt condensation polymerization in the presence of a catalyst composed of
Sakashita, Takeshi. (1997). Preparation method of polycarbonate resin (U.S. Patent No. 5606008). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5606008
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile