Process for disproportionating rosin, poly-unsaturated fatty acids and mixtures thereof
US4271066A · kind A · utility
7Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1979 |
| Grant date | Jun 2, 1981 |
| Priority date | — |
| Expiry date | Nov 5, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K23/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention provides a process for disproportionating rosin, poly-unsaturated fatty acid or mixture thereof, characterized in that the disproportionation reaction is conducted in the presence of a catalyst comprising (A) at least one iodide selected from the group consisting of sodium iodide and potassium iodide and (B) at least one iron compound selected from the group consisting of iron, iron oxides, iron hydroxides and iron sulfides. The disproportionated product of this invention affords an emulsifier suitable for emulsion polymerization when neutralized with an alkali.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.