Process for preparing an aqueous dispersion of a quaternary ammonium salt containing vinyl copolymer
US7592391B2 · kind B2 · utility
11Cited by
5References
23Claims
0Family size
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Key dates
| Filing date | Mar 18, 2004 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Jul 26, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/69
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of making an ion triggerable cationic polymer by solution copolymerizing one or more vinyl-functional cationic monomers, one or more water insoluble or hydrophobic vinyl monomers with alkyl side chains up to 4 carbons long, and, optionally, a minor amount of one or more vinyl monomers with linear or branched alkyl groups longer than 4 carbons, alkyl hydroxy, polyoxyalkylene, or other functional groups. The solution polymerization is accomplished by free radical polymerization in a mixture of acetone and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.