Surface chemistry modified latex and redispersible powders, production and use thereof
US7012114B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 8, 2000 |
| Grant date | Mar 14, 2006 |
| Priority date | — |
| Expiry date | May 22, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to a latex with modified surface chemistry, which may be obtained by carrying out a free-radical emulsion polymerization in the presence of at least one ethylenically unsaturated monomer or at least one polymer containing residual ethylenically unsaturated bonds, of at least one free-radical polymerization initiator, of at least one water-soluble and/or water-dispersible monoblock, diblock or triblock polymer comprising at its end an active group capable of forming a radical, chosen from dithioesters, xanthates, thioether-thiones and diothiocarbamates. The invention similarly relates to redispersible powders that may be obtained by drying the said latices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.