Water-repellent and oil-repellent compositions based on fluorine compound
US4032495A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1976 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Jan 2, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3154
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Mixture comprising, on the one hand, an aqueous dispersion of a copolymer (A) containing in interpolymerized form: PA1 1. 30% to 99% by weight of one or more monomers of the formula: ##STR1## in which Rf represents a perfluoro chain, straight or branched, containing 1 to 20, preferably 2 to 10 carbon atoms, a is a whole number between 2 and 20 inclusive, preferably equal to 2 or 4, R represents a hydrogen atom or an alkyl group containing 1 to 10 carbon atoms, a cycloalkyl group containing 5 to 12 carbon atoms, an hydroxyalkyl group containing 2 to 4 carbon atoms or an aryl group possibly substituted by an alkyl radical containing 1 to 6 carbon atoms, R', R", X and X' may be the same or different and represent hydrogen atoms or alkyl groups containing 1 to 4 carbon atoms, b is a whole number between 1 and 4 inclusive, preferably equal to 1 or 2, and Y represents the residue of an alkene-mono- or -di-carboxylic acid or a monoalkyl ester of such a dicarboxylic acid; PA1 2. Up to 70% by weight of one or more compounds containing at least one polymerizable ethylene linkage and no perfluoro groups; and PA1 3. up to 10% by weight of one or more monomers containing an ethylene linkage and…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.