Use of crosslinked polymers as anti-leaching agents
US6727204B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2002 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Jan 7, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N25/24
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns the use, in an aqueous spray mixture comprising a phytosanitary formulation, of an anti-leaching agent comprising: at least a polyhydroxyl and/or polycarboxyl polymer or copolymer; at least a crosslinking agent comprising a metal selected among columns IVA, IB and IIIB of the periodic table; said anti-leaching agent being, in the aqueous spray mixture, in the form of an aqueous solution or dispersion having a polymer or copolymer concentration such that the viscosity of the anti-leaching agent is not more than 10 times the viscosity of the aqueous solution in polymer or copolymer without crosslinking agent, having the same concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.