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. 12, 1991
Filed:
Aug. 30, 1989
Applicant:
Inventor:
Malcolm Hannaby, Leuven, BE;
Assignee:
Imperial Chemical Industries, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 44 ; 528 59 ; 528 73 ; 528 75 ; 524251 ; 524264 ;
Abstract
Isocyanate-reactive polymers having terminal enamino-functional groups are obtained by reacting ammonia or primary or secondary amines with polymers having terminal .beta.-ketoester groups which are themselves obtained by reaction of polyols with .beta.-ketoesters such as ethyl acetoacetate.