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:
Jul. 28, 1992
Filed:
Feb. 14, 1991
Applicant:
Inventors:
Jan Feijen, Hengelo, NL;
Gerardus H Engbers, Oldenzaal, NL;
Assignee:
Cordis Corporation, Miami Lakes, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08H / ;
U.S. Cl.
CPC ...
525 541 ; 523112 ; 525433 ; 525452 ; 525454 ; 4284231 ; 530352 ; 530380 ; 427-2 ; 427384 ;
Abstract
A dicarbonyl halide preferably a straight-chain-alkyl dicarbonyl dihalide, may be used to activate a substrate surface of preferably polyurethane or polyamide. Optionally, an amine-end blocked polymer may be reacted with the resulting activated surface by reaction between amine and dicarbonyl halide groups. Then, a material to be covalently bonded to said surface, such as heparin, may be reacted with free amine groups bonded to the surface by a carbodiimide process or the like.