Resin compositions comprising organoclays of improved dispersibility
US4683259A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1986 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | Nov 7, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K9/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Resin-containing compositions, e.g. unsaturated polyester or epoxy resin compositions, are prepared using an organoclay of improved dispersibility. The organoclay is prepared by suspending a smectite clay in water to form a fluid suspension; treating the suspension with a solution of an inorganic salt, the cation of which has a valency of at least two, the concentration of the salt being such as to flocculate the smectite clay substantially completely; mixing the suspension of the flocculated smectite clay with a quaternary ammonium compound, at least one of the four alkyl groups of which has from 10 to 24 carbon atoms; and dewatering the resultant product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.