Organosol of fluorine-containing polymer
US5188764A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1989 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Dec 12, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aqueous dispersion comprising composite colloidal particles having an average particle size of 0.05 to 1.0 micrometer each of which comprises a core made of a copolymer comprising 99-100% by weight of tetrafluoroethylene and 0 to 1% by weight of a fluorine-containing olefin which is copolymerizable with tetrafluoroethylene and a shell made of at least one thermoplastic polymer resin selected from the group consisting of ethylene/tetrafluoroethylene base copolymers, ethylene/chlorotrifluoroethylene base copolymers and vinylidene fluoride/hexafluoroisobutene base copolymers, from which composite fluorine-containing polymer particles having good dispersibility in other polymer are prepared and from which an organosol of the composite fluorine-containing polymer particles is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.