Thickening aqueous systems
US5124389A · kind A · utility
8Cited by
5References
4Claims
0Family size
Inventor
Key dates
| Filing date | Aug 28, 1987 |
| Grant date | Jun 23, 1992 |
| Priority date | — |
| Expiry date | Aug 28, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L71/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
New liquid thickeners for aqueous liquids, particularly those employed in pesticides and latex paints, comprise polyoxyalkylene polyethers terminated with oxypropylene groups. These copolymers are prepared by reacting ethylene oxide with an active hydrogen-containing initiator having about 1 to 18 carbon atoms and at least one active hydrogen atom followed by reaction with propylene oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.