Method for preparing fatty acid esters of natural origin functionalized by oxidation for use as fluxing oils for bitumen
Patent 7951238 Issued on May 31, 2011. Estimated Expiration Date: 
October 10, 2026. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 10, 2026. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2403408 2418452 Process for preparing a synthetic ester from a vegetable oil Bituminous binder, composition and use Method for producing three-dimensional cross-linked oxidized unsaturated fatty acids and/or fatty acid esters Patent #: 6680394 InventorsAssigneeApplicationNo. 12089955 filed on 10/10/2006US Classes:106/243Fat, fatty oil, fatty oil acid or salt thereof containingExaminersPrimary: Brunsman, David MAttorney, Agent or FirmForeign Patent References
International ClassesC09D 195/00C09D 191/00 AbstractA method for preparing a fluxing oil, having an iodine number ranging from 50 to 200, based on fatty substances of natural origin having been chemically functionalized by oxidation, includes the steps of: i) providing a fatty substance or a mixture of fatty substances of natural origin, ii) subjecting the fatty substance or the mixture of fatty substances of natural origin to at least one transesterification or esterification reaction by at least one alkanol or mono-alcohol, iii) subjecting the compound or mixture of compounds obtained at step ii) to at least one chemical functionalization reaction by oxidation introducing at least one functional group selected from carboxylic acid, epoxy, peroxide, aldehyde, ether, ester, alcohol and ketone groups, and iv) collecting the fluxing oil.Other References
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