Water-soluble polyurethane comb polymer production
US4496708A · kind A · utility
55Cited by
10References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1983 |
| Grant date | Jan 29, 1985 |
| Priority date | — |
| Expiry date | Dec 14, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L75/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Water soluble polyurethanes, having hydrophilic polyether backbone and pendant monovalent hydrophobic groups of sufficient size and number while establishing proper hydrophilic/lipophilic balance, provide improved thickening of aqueous systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.