Biocide-polyester concentrates and biocidal compositions prepared therefrom
US7041307B2 · kind B2 · utility
1Cited by
11References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 2002 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Jan 29, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2467/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Concentrates of various classical biocides in a polyester carrier resin when incorporated into a substrate resin, preferably a polyolefin such as polypropylene or polyethylene, provide the substrate polymer which biocidal activity with superior resistance to discoloration (yellowing) than when the biocide is directly incorporated into the substrate polymer as a powder at the same total concentration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.