Water/oil repellent composition, method for its production and article
US9255203B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2013 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Feb 18, 2034 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M2200/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
To provide a water/oil repellent composition with which an article which has favorable water/oil repellency and washing durability, and into which infiltration of a coating liquid can be suppressed, is obtained, and which presents a low environmental impact, its production method and an article having its surface treated with the composition. A water/oil repellent composition comprising a copolymer (X) having structural units based on the monomer (a) and structural units based on the monomer (b), and an aqueous medium, wherein the mass average molecular weight of the copolymer is at least 60,000, and the proportion of the structural units based on the monomer (a) is 60 to 95 mass %. Monomer (a): by (Z—Y)nX, wherein Z is a e.g. C1-6 polyfluoroalkyl group, Y is e.g. a bivalent organic group having no fluorine atom, n is 1 or 2, and X is a polymerizable unsaturated group. Monomer (b): vinyl chloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.