Additive and method for reducing the drift of aqueous spray compositions
US4102667A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1976 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Jul 16, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N25/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An additive composition containing a substantially water-soluble, alternating copolymer of maleic acid and a conjugated diene such as butadiene for reducing the drift of aqueous spray compositions. Certain salts of the copolymer may also be employed and the aqueous spray compositions may either be water or water-containing compositions containing herbicides, plant growth regulators, fungicides, insecticides, bactericides, fertilizers, defoliants, seeds, and the like as well as mixtures thereof. The drift-inhibiting additive compositions of this invention may also be used in conjunction with water-based paints. A method of dispensing aqueous compositions on the ground utilizing the drift-inhibiting additive compositions is also encompassed by the invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.