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. 27, 1997
Filed:
Sep. 30, 1994
Applicant:
Inventors:
Shinichi Morinaga, Simpsonville, SC (US);
Kouji Midori, Fukui, JP;
Assignees:
NICCA U.S.A., Inc., Fountain Inn, SC (US);
NICCA Chemical Co., Ltd, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
8442 ; 8551 ; 8554 ; 8495 ; 528422 ;
Abstract
The present invention provides a cationic polycondensate dye fixing agent prepared by reacting (a) a mono- or polyfunctional amine having at least one reactive --NH or --NH.sub.2 group, or a salt thereof, with (b) a polycondensate-forming cyano compound at a temperature of at least about 260.degree. C. The present invention also provides a process of improving the fastness of dyed materials using the cationic polycondensate dye fixing agent of the present invention.