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:
Sep. 27, 1977
Filed:
Nov. 01, 1974
Applicant:
Inventors:
Hans-Peter Kuhlthau, Leverkusen, DT;
Hermann Beecken, Bergisch-Gladbach, DT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ; C09B / ; D06P / ; D06P / ;
U.S. Cl.
CPC ...
2601 / ; 260156 ; 260157 ; 2603 / ; 260463 ;
Abstract
Cationic azodyestuffs of the formula ##STR1## in which the substituents have the meaning stated below, are suitable for dyeing and printing of natural and synthetic materials especially polyacrylonitrile and acid modified polyesters and polyamides. They are also suitable for dyeing and printing of cellulose acetate, coir, jute, sisal, silk tannin-treated cotton, paper, ball-pen pastes, rubber stamps inks, and for use in flexographic printing.