Method for quaternizing polymers of water-soluble aminovinyl monomers
US4096133A · kind A · utility
17Cited by
10References
14Claims
0Family size
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Key dates
| Filing date | Feb 28, 1977 |
| Grant date | Jun 20, 1978 |
| Priority date | — |
| Expiry date | Feb 28, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
In the preparation of polyquaternary ammonium salts by alkylation of polymers of water-soluble ethylenically unsaturated amines such as a dialkylamino methylacrylamide with a quaternizing agent such as an alkyl halide in an aqueous solution of the polymer, more rapid and complete alkylation is obtained when the reaction is carried out in an acidic medium containing a lower alkanol such as methanol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.