Thickening water-in-oil dispersions, their preparation process and their use in textile printing
US5484843A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P1/5257
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Self-reversible, stable, water-in-oil dispersions, miscible with water, constituted by an oil phase, an aqueous phase and at least two emulsifying agents of which at least one is of water-in-oil type, and at least one is of oil-in-water type, which contain 20 to 50% by weight of a mixture constituted by a hydrosoluble anionic polymer belonging to the group of carboxymethylcelluloses (C), and by a cross-linked, synthetic anionic polymer, insoluble in water but water-swellable (P), based on acrylic acid (AA), partially salified with an alkali metal (M), optionally copolymerized with 2-acrylamido 2-methyl propanesulphonate of the alkali metal M (AMPSM), cross-linked with a diethylenic carboxylic acid and in which the molar ratio of the salified acid functions to the total number of free or salified acid functions is comprised between about 0.6 and about 0.9, the ratio by weight C/P+C being comprised between 0.01 and 0.4, preparation process and use for obtaining a printing paste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.