Water soluble rigid rod sulfonated aromatic polyamide
US5095073A · kind A · utility
6Cited by
1References
12Claims
0Family size
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Inventors
Key dates
| Filing date | Mar 2, 1990 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Mar 2, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water soluble and brine soluble rod-like polymer having recurring any units of the formula: ##STR1## wherein n is 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 aluminum, iron, lead, Groups IA, IIA, IB and IIB of the Periodic Table of Elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.