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:
Nov. 08, 1994
Filed:
Dec. 09, 1991
Applicant:
Inventors:
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 87 ; 528 88 ; 528 90 ; 528 92 ; 528104 ; 568608 ; 568618 ; 568648 ; 568649 ; 568676 ; 568678 ;
Abstract
A process for the production of a material having an increased molecular weight relative to the diepoxide starting material the material being either a hydroxy-terminated or an epoxy-terminated material comprising