N-sulfoalkyl polyamide water soluble hydrophobically-associating rigid rod polymer
US4894422A · kind A · utility
7Cited by
4References
3Claims
0Family size
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Key dates
| Filing date | Dec 19, 1988 |
| Grant date | Jan 16, 1990 |
| Priority date | — |
| Expiry date | Dec 19, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/48
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water soluble or brine soluble rod-like polymer characterized by the formula: ##STR1## wherein n and n' are a 2 to 22 straight chained or branched chained alkyl or cycloalkyl group, and the level of sulfonation is about 20 to about 100 mole %, and M is a tertiary amine or a metal cation selected from the group consisting of alumina, iron, lead, Groups IA, IIA, IB ad IIB of the Periodic Table of Elements and level of alkylation is about 1.0 to 60 mole %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.