Polymerization with the aid of macromolecule having both a monomer soluble portion and suspension soluble portion
US3948866A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1971 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Feb 18, 1991 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for the suspension polymerization of ethylenically unsaturated monomers -- particularly for the preparation of water-soluble polymers -- wherein a liquid monomer phase is polymerized while suspended in a liquid organic suspending medium in the presence of a macromolecular stabilizing or suspending agent having a macromolecular portion or portions solvated by the liquid monomer phase and another macromolecular portion or portions solvated by the liquid organic suspending medium. Water-soluble suspension polymers, preparable by this process, comprising quaternization products or salts of dialkylaminoalkyl esters or of dialkylaminoalkyl amides of acrylic acid or of methacrylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.