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. 07, 1985
Filed:
Apr. 16, 1984
Applicant:
Inventors:
Subhas K Sikdar, Clifton Park, NY (US);
Yaw D Yeboah, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528200 ; 524714 ; 524745 ; 524841 ; 528196 ; 528198 ; 528199 ;
Abstract
This invention relates to a catalyzed interfacial polycondensation aromatic polycarbonate process which comprises forming an agitated two-phase mixture comprising an organic solvent phase with catalyst and an aqueous phase containing an aromatic dihydroxy compound, a base and an ionic surfactant. A carbonyl halide is added to the mixture and reacted with the aromatic dihydroxy compound to form an aromatic polycarbonate. The aromatic polycarbonate is recovered from the aqueous phase.