Catalysts for esterification of epoxidized soyates and methods of using same
US8481767B2 · kind B2 · utility
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17References
17Claims
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Key dates
| Filing date | Jan 19, 2009 |
| Grant date | Jul 9, 2013 |
| Priority date | — |
| Expiry date | Oct 28, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2531/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A combination of catalysts is disclosed as useful to promote the transesterification reaction of an epoxidized soyate with a polyol to yield a high percentage of epoxidized soyate diester with epoxy functionality retained. The primary catalyst is a metallic hydroxide, and the secondary catalyst is a titanate. Bioderived plasticizers useful for thermoplastics and thermosets result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.