Water-redispersible powders of vinyl/acrylic polymers
US5578668A · kind A · utility
11Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1991 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Dec 23, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B24/26
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Water-dispersible, storage-stable pulverulent compositions of matter, well adopted as adjuvants for hydraulic binders used in the construction industry, comprise particulates of a water-insoluble film-forming vinyl and/or acrylic polymer, e.g., a vinyl ester, alkyl(meth)acrylate or vinylaromatic homopolymer or copolymer, containing from 0.5 to 20 parts by weight of at least one silicone, e.g., an alkali or alkaline earth metal organosiliconate or a liquid organopolysiloxane, per 100 parts by weight of such film-forming polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.