Loading patent…
OwnerJohan A. Thoen, Camiel F. Bartelink +1inventors
InventorsJohan A. Thoen, Camiel F. Bartelink, Pierre Varineau
Estimating the term…
Novel alkylene oxide-extended alkoxylates of a branched 1,3-dialkyl-oxy-2-propanol may be prepared by a convenient process comprising adding epichlorohydrin to a stoichiometric excess of a branched alcohol, wherein the molar ratio of branched alcohol:epichlorohydrin is at least about 3:1, preferably in the presence of a Group 1 A metal hydroxide and a phase transfer catalyst, followed by alkoxylation in the presence of an ionic catalyst. The branched alkyl chain may be saturated or unsaturated and may contain one or more heteroatoms. The repeating alkoxy units from the alkylene oxide are in the 2-position. The compositions are useful as surfactants, diluents, and the like, and may be less expensive than other branched surfactants.
A process for preparing a branched surfactant comprising
(canceled)
A surfactant composition comprising a branched 1,3-dialkyloxy-2-propanol alkoxylate prepared by a process comprising reacting a 1-chloro-2,3-epoxypropane and a stoichiometric excess of a branched alcohol having from 3 to 28 carbon atoms, such that the molar ratio of branched alcohol to 1-chloro-2,3-epoxypropane is at least about 3:1 during the reaction, in the presence of a metal hydroxide and a phase transfer catalyst, such that a reaction product comprising a branched 1,3-dialkyloxy-2-propanol alkoxylate is formed;
Dependencies are inferred from the claim text.