Water re-dispersible granules comprising an active matter in liquid form
US6841613B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1999 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Nov 2, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2/28
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns water re-dispersible granules obtainable by drying an emulsion comprising an active matter in the form of a hydrophobic, a non-ionic surfactant selected among polyoxyalkylene derivatives, and a water soluble or water dispersible compound selected among polymers: (i) obtained by polymerising an ethylenically unsaturated carboxylic acid, or anhydride monomer (I), and an ethylenically unsaturated carboxylic acid polyoxyalkylene ester (III), and optionally an ethylenically unsaturated linear or branched hydrocarbon monomer (II); or obtained by polymerising said monomer (I), and a vinyl type monomer (II′), comprising at least a C2-C10 linear or branched, or cyclic aliphatic radical; (ii) obtained by polymerising at least a monomer of formula (I) comprising a hydrophobic graft; (iii) polypeptides of natural or synthetic origin; (iv) highly depolymerised polysaccharides comprising at least a hydrophobic graft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.