Patent · US Expired

Basic arylmercaptonaphtholactam dyes

US3963747A · kind A · utility

8Cited by

2References

5Claims

0Family size

Assignee

BASF SE

Inventors

Ernst Schefczik
Klaus Grychtol · Bad Dürkheim, DE

Key dates

Filing date	May 30, 1974
Grant date	Jun 15, 1976
Priority date	—
Expiry date	May 30, 1994

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09B57/06
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Basic dyes of the naphtholactam series substituted by an arylmercapto radical. The dyes are eminently suitable for dyeing anionically modified fibers, particularly acrylonitrile polymers, and give blue to blue green shades of excellent fastness properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.