Process for making surfactants

Details Process for making surfactants Process for making surfactants

1991-01-07

1996-10-08

Kight, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 186, 536 185, 536119, 536120, 536124, 5361231, 536127, C07H 1500, C07H 1302, C07H 1504, C07G 300

Patent

active

055632513

ABSTRACT:
A process for producing a nonionic surfactant wherein a polyol, e.g. a saccharide, is introduced into a reaction vessel, a mixture of an alkylene oxide containing from about 2 to about 5 carbon atoms and a lipophilic compound containing an epoxide group and having at least 6 carbon atoms is introduced into the reaction vessel, the polyol and the mixture being reacted in the presence of a catalyst and under conditions such that the rate of introduction of the mixture into the reaction vessel is controlled by the rate of reaction between the alkylene oxide and the polyol, the reaction between the polyol and the mixture being conducted at a temperature above the boiling point of the alkylene oxide.

REFERENCES:
patent: 3585185 (1971-06-01), Levis et al.
patent: 3852314 (1974-12-01), Hamanaka et al.
patent: 4430247 (1984-02-01), Austin et al.
patent: 4446313 (1984-05-01), Dix et al.
patent: 4767846 (1988-08-01), Stepto et al.
patent: 4834903 (1989-05-01), Roth et al.
patent: 5006648 (1991-04-01), Van der Plank et al.

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