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:
Jun. 07, 1988
Filed:
Dec. 30, 1982
Applicant:
Inventors:
Albrecht Marhold, Leverkusen, DE;
Gerhard Wolfrum, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C09B / ;
U.S. Cl.
CPC ...
564442 ; 534581 ; 534582 ; 534790 ; 534793 ; 534845 ; 534846 ; 534856 ; 534878 ; 564409 ; 564417 ; 564419 ; 564420 ;
Abstract
4-Alkyl-2-trifluoromethylanilines, in particular the 4-isopropyl derivative, are starting materials for preparing valuable azo dyestuffs. While the nonionic dyestuff types can preferably be used in transfer printing synthetic hydrophobic fibre materials, the sulpho-containing dyestuffs--in particular those based on 'gamma acid'--are suitable for dyeing polyamides.