Ionomeric particulate composition
US6509404B1 · kind B1 · utility
3Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1999 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Nov 17, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F265/08
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An ionomeric particulate composition made by suspension polymerization is provided. The composition comprises at least one vinyl monomer; an acid monomer; a metal oxide; at least two surfactants, one of which is a monomer surfactant; and polyacrylamide. The particulates' size can be controlled by use of the polyacrylainide and various surfactants, and not through the conventional means of homogenization. Particle size in the range of less than 10 micrometers can be made. The ionomeric particulate is made in the absence of a chain transfer agent and thus can have high molecular weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.