Method for producing polymers using micellar polymerization
US6207771A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 21, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Oct 21, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/22
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for forming a hydrophobically modified water soluble or water dispersible polymer by utilizing a micellar polymerization technique comprising the steps of: PA0 (1) providing a reaction medium including one or more water soluble or water dispersible monomers and one or more surface active agents or protective colloids; PA0 (2) incrementally adding one or more ethylenically unsaturated monomers having hydrophobic properties to said reaction medium; PA0 (3) initiating polymerization of said one or more water soluble or water dispersible monomers with said one or more ethylenically unsaturated monomers having hydrophobic properties; and PA0 (4) continuing polymerization of said one or more water soluble or water dispersible monomers with said one or more ethylenically unsaturated monomers having hydrophobic properties while incrementally adding said one or more ethylenically unsaturated monomers having hydrophobic properties to said reaction medium is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.