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:
Oct. 22, 2002
Filed:
Aug. 07, 2001
Applicant:
Inventors:
Hua Guo, Selkirk, NY (US);
Hugo Gerard Eduard Ingelbrecht, Essen, BE;
David Parrillo, Schenectady, NY (US);
Probjot Singh, Delmar, NY (US);
Assignee:
General Electric Company, Pittsfield, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 6/538 ; C08G 6/544 ;
U.S. Cl.
CPC ...
C08G 6/538 ; C08G 6/544 ;
Abstract
A process for producing a poly(arylene ether) resins includes oxidatively coupling a monohydric phenol in the presence of a solvent and a catalyst to form a soluble poly(arylene ether) and an insoluble poly(arylene ether), separating the soluble poly(arylene ether) and the insoluble poly(arylene ether), and recycling the soluble poly(arylene ether). The process is particularly useful for synthesizing poly(arylene ether) copolymers in which the monomer compositions of soluble and insoluble copolymers may vary.