Dye salts
US4439204A · kind A · utility
2Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1982 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Aug 30, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/927
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The novel dye salts of the formula ##STR1## wherein Z, B, X, m and n are as defined in claim 1, are suitable for dyeing polyacrylonitrile in the spinning dope. The fibres dyed according to the invention have good fastness to rubbing, steaming, washing and light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.