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. 01, 1997
Filed:
Sep. 20, 1995
Applicant:
Inventors:
Rodney L Michel, Evansville, IN (US);
Paul D Sybert, Evansville, IN (US);
Gary C Davis, Albany, NY (US);
William J Swatos, Mt. Vernon, IN (US);
Assignee:
General Electric Company, Pittsfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 29 ; 524537 ; 525474 ; 528 14 ; 528 15 ; 528 18 ; 528 19 ; 528 21 ; 528 25 ; 528 31 ; 528 32 ; 528 41 ; 528 43 ;
Abstract
Polycarbonate-polysiloxane block copolymers are prepared by interfacial polymerization technique in the presence or a phase transfer catalyst.