Cationic polycondensates useful for improving the fastness of dyeings on textiles
US4764585A · kind A · utility
22Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Sep 15, 1987 |
| Grant date | Aug 16, 1988 |
| Priority date | — |
| Expiry date | Sep 15, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P5/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Cationic fixing agents based on the reaction products of PA0 (a) a monofunctional or polyfunctional amine having one or more primary and/or secondary and/or tertiary amino groups and PA0 (b) cyanamide, dicyandiamide, guanidine or bisguanidine give improved results when the reaction takes place in the presence of a catalyst (K) selected from metals, metal salts and heterocyclic nitrogen-containing organic bases, particularly zinc chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.