Process for incorporating biocides into a liquid dispersion
US5639803A · kind A · utility
6Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/0058
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates to a multi-step process for preparing a storage-stable dispersion of a biocide which comprises the steps of: (a) contacting a heat-swellable resin with a carrier to provide a liquid mixture of a resin and a carrier, (b) heating said liquid mixture to an elevated temperature to cause the resin to swell by virtue of carrier absorption into the resin to provide a swelled resin in said liquid mixture, and (c) adding a biocide to said swelled resin and mixing to provide a homogeneous, storage-stable liquid dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.