![]() ![]() This invention relates to a ring opening method. Therefore, it would be desirable to provide a method for the production of polyols that overcomes some of the problems of the earlier methods. The main issues in the processes have been undesired side reactions (e.g., polymerization, intramolecular ether formation, and hydrolysis of the triglyceride) and difficult purifications leading to decreased yields of desired products. For example, there has been great interest in the ring opening of epoxidized soybean oil and other triglyceride oils for mono-ol and di-ol polyol functionalization at the original olefin site. Products produced with these feedstocks may also have improved properties.Īn important way to utilize the renewable feedstocks is by the production of polyols from the feedstocks which can be used to produce a number of products. ![]() Moreover, these oils or fats are typically biodegradable, which would help reduce the introduction of waste into the environment. Products derived from renewable feedstocks such as vegetable, algal or animal oils or fats would be desirable to help reduce the world dependence on oil and other fossil-derived hydrocarbons. The disclosures of all of these applications are incorporated herein by reference. 25, 2014, and this application is a continuation-in-part patent application of International Application No. This application is a continuation-in-part patent application of U.S. A method of producing a product comprising: reacting an epoxidized fatty acid ester with an alcohol to open an epoxy ring of the ester, using a salt of tetrafluoroboric acid as a catalyst in the reaction, to produce a polyol and using the polyol to produce a product selected from polyurethanes, coatings, adhesives, sealants, elastomers and lubricants. The method of claim 15 comprising an additional step, before the ring opening reaction, of subjecting the fatty acid ester to an epoxidation reaction to produce the epoxidized fatty acid ester.Ģ0. The method of claim 17 wherein the triglyceride is selected from the group consisting of vegetable oils, animal fats and combinations thereof.ġ9. The method of claim 15 wherein the fatty acid ester is a triglyceride.ġ8. The method of claim 15 wherein the salt is a metal salt.ġ7. A method of producing a polyurethane comprising: reacting an epoxidized fatty acid ester with an alcohol to open an epoxy ring of the ester, using a salt of tetrafluoroboric acid as a catalyst in the reaction, to produce a polyol and reacting the polyol with an isocyanate to produce a polyurethane.ġ6. The method of claim 1 further comprising a step of water washing the product to remove catalyst without neutralization.ġ5. The method of claim 1 wherein the product of the ring opening reaction is subjected to a further reaction to produce a polyol.ġ4. The method of claim 10 wherein the polyol has a hydroxyl value within a range from about 75 to about 400.ġ3. The method of claim 1 wherein the product of the ring opening reaction is a polyol.ġ2. The method of claim 1 wherein the alcohol is a polyol having two or less hydroxyl groups.ġ1. The method of claim 1 wherein the alcohol is a monohydric alcohol having from one to six carbon atoms.ġ0. The method of claim 4 wherein the triglyceride comprises soybean oil.ĩ. The method of claim 4 wherein the triglyceride excludes algal oils.Ĩ. The method of claim 5 wherein the triglyceride is selected from the group consisting of vegetable oils, animal fats and combinations thereof.ħ. The method of claim 4 wherein the triglyceride is selected from the group consisting of vegetable oils, algal oils, animal fats and combinations thereof.Ħ. The method of claim 1 wherein the fatty acid ester is a triglyceride.ĥ. The method of claim 2 wherein the metal is copper or iron.Ĥ. The method of claim 1 wherein the salt is a metal salt.ģ. A ring opening method comprising reacting an epoxidized fatty acid ester with an alcohol to open an epoxy ring of the ester, using a salt of tetrafluoroboric acid as a catalyst in the reaction.Ģ. High temperature resistant fiberfill comprising PETN fibersġ. SEEDING PROCESS FOR THE MANUFACTURE OF POLYMER MODIFIED POLYOLS ![]() METHODS FOR PREPARATION OF POLYESTER OLIGOMER VIA BASE CATALYSISĪdducts containing isocyanate groups and composition adhering effectively to painted substrates Polyester molding composition and process for its preparartion Method Of Producing A Silicone Rubber Item And The Product Obtainable By The MethodĬURABLE COMPOSITION AND ITS USE FOR ELECTRONIC DEVICEĪdhesive compositions containing blocked polyurethane prepolymers ![]()
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |