Reduced color epoxidized esters from epoxidized natural fats and oils
US9708571B2 · kind B2 · utility
0Cited by
1References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2012 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Aug 23, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11C1/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Reduced color epoxidized fatty acid esters are provided which may be used as primary plasticizers for PVC, in replacement of phthalate plasticizers. The reduced color epoxidized fatty acid esters are prepared from natural fats or oils by transesterification and interesterification processes, whereby through the use of borohydride, materials having Pt—Co colors according to ASTM D1209 on the order of 50 and lower are possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.