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:
May. 13, 1986
Filed:
Jul. 19, 1984
Applicant:
Inventors:
Karl-Heinz Keil, Hanau-Mittelbuchen, DE;
Fritz Engelhardt, Frankfurt, DE;
Ulrich Greiner, Schoneck, DE;
Klaus Sternberger, Bad Vilbel, DE;
Manfred Pelster, Speyer, DE;
Assignee:
Cassella Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
8543 ; 8551 ; 8604 ; 8918 ;
Abstract
Improvements in the fastness properties of substrates dyed with reactive dyestuffs are achieved by a dyeing after-treatment with an agent which is the reaction product polyethyleneimine and a bifunctional alkylating agent.
Keil, Karl-Heinz. (1986). Process for producing dyeings with reactive dyestuffs (U.S. Patent No. 4588413). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4588413
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile