Polycondensation products and their use as dyeing aids
US6307007A · kind A · utility
0Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1999 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | May 14, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/28
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
New water-soluble polycondensation products are obtained by reaction of polyfunctional amines with cyanamide, its derivatives or polymers in the presence of sulfamic acid. They are excellent fixing agents which improve fastness properties of dyeings with substantive dyestuffs on cellulose fiber materials, paper, board and non-wovens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.