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AssigneeBioBased Technologies LLC
InventorsSrikanth Yalamanchili, Neil Nodelman, David Casper, Trevor Newbold
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There is disclosed a process for hydroxylating vegetable oils to create polyols suitable for use in polymer processes, particularly polyurethane processes. The process includes contacting a vegetable oil with hydrogen peroxide and an organic acid having 1-3 carbon atoms under conditions sufficient to oxidize carbon to carbon double bonds found in the vegetable oil. There is also disclosed a vegetable oil based polyol having an acid number of 2.0 mg KOH/g or less. The polyol contains 0.1% w/w or less water, 0.1% w/w or less of the organic acid used to prepare the polyol, and triglyceride groups having fatty acid moieties ranging from C16 to C18. The fatty acid moieties contain pendant carboxylate groups having from 1 to 3 carbon atoms.
A process for preparing a polyol having an acid number of not more than about 2 mg KOH/g, the process comprising the steps of:
A continuous process for preparing a polyol having an acid number of not more than about 2 mg KOH/g, the process comprising the steps of:
A vegetable oil based polyol having an acid number of 2.0 mg KOH/g or less and comprising 0.1% w/w or less water, 0.1% w/w or less of the organic acid used to prepare the polyol, and triglyceride groups having fatty acid moieties ranging from C16 to C18 wherein said fatty acid moieties contain pendant carboxylate groups having from 1 to 3 carbon atoms.
Dependencies are inferred from the claim text.