Aqueous dispersion composition, preparation thereof, water-and oil-repellent and mold release agent
US5639820A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1995 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Jun 2, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06M15/277
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for preparing an aqueous dispersion composition containing a fluorocopolymer by the emulsion polymerizing of a polymerizable compound containing a polyfluoroalkyl group and another copolymerizable compound noncompatible with the polymerizable compound in an aqueous solution containing a compatibilizer, wherein the compatibilizer is selected from the group consisting of (a) a low-molecular weight compound having a perfluoroalkyl group and a hydrocarbon alkyl group in a molecule, (b) a low-molecular weight compound having a perfluoropolyether group and a hydrocarbon alkyl group in a molecule, (c) a macromolecular compound prepared by the copolymerization of a polymerizable compound containing a perfluoroalkyl group and a polymerizable hydrocarbon compound, and (d) a hydrocarbon macromolecular compound having a perfluoropolyether group in a molecule does not cause coagulation and can give an aqueous dispersion composition having the improved compatibility between the polymerizable monomers. The composition can be used as a water- and oil-repellent or mold release agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.