Processes for chemically-modifying the surface of emulsion polymer particles
US6784262B2 · kind B2 · utility
7Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 2001 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/93
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Processes for chemically-modifying the surface of an emulsion polymer particle are provided which include providing an aqueous emulsion polymer, a monomer at a level of at least 0.5% by weight based on the weight of the emulsion polymer and a, surface-modifying chemical capable of bonding with the monomer, under conditions where there is no substantial polymerization of the monomer, and then reducing the level of the monomer by at least 50%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.