Back to results
US 8,802,877 B2Granted
Process for modifying vegetable oils and primary plasticizer for vinyl polymers
AssigneeNpc Industrias Quimicas Ltda
InventorsMilton Sobrosa Cordeiro, Sérgio Teixeira, Ariovaldo Fernandes Junior
Life of this patent
Estimating the term…
Abstract
The present invention refers to a process for modifying epoxidized or non-modified vegetable oils. More specifically, it refers to the process through which vegetable oils and alcohols are converted into fatty acid alkyl esters through transesterification. The present invention also refers to the products obtained through the process disclosed herein.
Claims17
PROCESS FOR MODIFYING VEGETABLE OIL, characterized by the fact that it comprises the following steps:
- a) react at least one monohydric alcohol, with a chain size of more than 3 carbon atoms, and/or at least one polyhydric alcohol of any type with an alkaline metal to generate an alcoxide;
- and
- b) perform the transesterification of at least one epoxidized vegetable oil with said alcohol (or alcohols), using the alcoxide generated in step a) as catalyst.
PROCESS FOR MODIFYING VEGETABLE OIL, characterized by the fact that it comprises the following steps:
- a) react at least one polyhydric alcohol of any type with an alkaline metal to generate an alcoxide;
- and
- b) perform the transesterification of at least one non-modified vegetable oil with said alcohol (or alcohols), using the alcoxide generated in step a) as catalyst.
Dependencies are inferred from the claim text.