Epoxy resins and stable aqueous dispersions thereof
US6271287A · kind A · utility
7Cited by
11References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | Aug 7, 2001 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2363/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An epoxy resin containing a low temperature nonionic surfactant having a molecular weight of less than 7,000 Daltons, a high temperature nonionic surfactant having a molecular weight of greater than 7,000 Daltons, and an anionic surfactant, can be used to prepare an aqueous dispersion of the epoxy resin that has unusually low particle size and unusually long shelf-stability. The dispersion is preferably prepared by way of a high internal phase ratio emulsion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.