Method of manufacturing a fatty acid ester of polyoxyalkylene alkyl ether
AssigneeLion Corporation
InventorsItuo Hama, Takahiro Okamoto, Hisashi Sasamoto, Hirofumi Nakamura
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Abstract
A method of manufacturing a fatty acid ester of polyoxyalkylene alkyl ether wherein a fatty acid ester of polyoxyalkylene alkyl ether represented by the following formula (I) is produced through a reaction between a fatty acid alkyl ester with an alkylene oxide in the presence of a composite metal-oxide catalyst whose surface is modified with a metal hydroxide or a metal alkoxide: wherein each of R1 and R3 independently represents an alkyl group or an alkenyl group, R2 represents an alkylene group, and n is a positive number.
Claims8
A fatty acid ester of polyoxyalkylene alkyl ether represented by the following formula (I):
- wherein R1 represents at least one member selected from the group consisting of an alkyl group and an alkenyl group each having 3 to 40 carbon atoms, R2 represents an alkylene group having 2 to 8 carbon atoms, R3 represents at least one member selected from the group consisting of an alkyl group and an alkenyl group each having 1 to 30 carbon atoms, and n is a positive number;
- and having an adduct distribution satisfying the following formula (A) ∑ i = n max - 2 i = n max + 2 Yi ≧ 50 ( A )
- wherein nmax denotes a molar number of added alkylene oxide in an adduct accounting for a maximum proportion by weight in a total adduct, and Yi denotes a proportion by weight of an adduct having an i moles of added alkylene oxide to a total weight of an adduct.
Dependencies are inferred from the claim text.