Water and oil repellent composition
US6716944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Dec 13, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water and oil repellent composition which can impart an excellent water and oil repellency to an object, even if it is processed at a low temperature, and which can achieve a water and oil repellent treatment providing a soft hand. The water and oil repellent composition which has as an essential component a copolymer consisting essentially of polymerized units of the following monomer (a) and polymerized units of the following monomer (b).monomer (a): an Rf monomer wherein the melting point of fine crystals derived from the Rf groups of the homopolymer does not exist or is at most 50° C.monomer (b): a monomer having no Rf group, wherein the melting point of fine crystals derived from the side chains of the homopolymer is at least 30° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.