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:
Apr. 17, 1984
Filed:
Aug. 30, 1982
Applicant:
Inventors:
Assignee:
Sandoz Ltd., Basel, CH;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; D06M / ; D06P / ;
U.S. Cl.
CPC ...
8496 ; 8543 ; 8551 ; 8556 ; 8918 ; 252-88 ; 524612 ; 528254 ; 528256 ; 528257 ; 528258 ; 528259 ; 528263 ;
Abstract
The fastness of direct dyes on cellulose substrates is improved by after-treatment with the reaction product of a quaternary polyalkylene polyamine with an N-methylol resin precursor, and heat curing in the presence of a catalyst. The unfixed portion of reactive dyes substantive to cellulose may also be given improved wet and light fastness by this treatment.
Kissling, Bruno. (1984). Composition and method for improving the fastness of direct and reactive (U.S. Patent No. 4443223). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4443223
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile