Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Reexamination Certificate
2005-05-31
2009-12-08
Nazario-Gonzalez, Porfirio (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C560S029000, C560S179000, C560S126000, C502S172000, C568S606000, C568S618000
Reexamination Certificate
active
07629487
ABSTRACT:
Provided herein are catalysts useful in enabling and promoting the insertion of alkylene oxides into ester linkages. The esters employed as a substrate to be alkoxylated include esters of fatty acids, such as methyl esters of C14to C22fatty acids, and mono-, di-, and tri-esters of glycerine, including vegetable oils, animal fats, and plant oils. A catalyst according to the invention includes at least two alkaline earth compounds, which may include any known stable compounds of the alkaline earths, and optionally contains one or more additional materials such as a carboxylic acid or a polyalkylene glycol having a molecular weight between about 100 and 1500 or a C1-C10alkyl-capped polyalkylene glycol having molecular weight between about 100 and 1500, which has been acidified with a strong mineral acid. The preferred alkaline earths employed are salts and compounds of magnesium and calcium.
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Instytut Clezkiej Syntezy Organicznej, May 31, 1995, PL 166429, (English translation of Abstract) 1 page.
Coker, legal representative Lindy R.
O'Neill James
Smith George A.
Sneed George
Whewell Christopher J.
Cutliff Yate K
Huntsman Petrochemical LLC
Huntsman Petrochemical LLC
Nazario-Gonzalez Porfirio
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