Water dispersion type water and oil repellent composition and object treated with the same
US6646043B2 · kind B2 · utility
7Cited by
14References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 4, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Mar 4, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A water dispersion type water and oil repellent composition containing a copolymer (A) which is a copolymer containing polymerized units based on a polymerizable monomer having a polyfluoroalkyl group and polymerized units based on stearyl (meth)acrylate, and which is produced by using a material having a purity of stearyl (meth)acrylate higher than 91 mass %, wherein the ratio of particles having an average particle diameter of from 30 to 150 nm is at least 80% of the total number of particles of the copolymer (A) in a dispersion medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.