Concentrated aqueous betaine-type surfactant compositions and process for their preparation
AssigneeKao Corporation
InventorsJosep María González, María José Bermejo, Rosa María Barceló, Josep Vilaret, Nuria Siscart
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Abstract
A concentrated aqueous betaine surfactant composition consisting essentially of a betaine compound and from 0.5 to 3.5 wt %, based on the total weight of the composition, of at least one fluidizing additive selected from the group consisting of (i) a fatty acid dimer composition and (ii) phosphoric esters of fatty alcohols or polyethoxylated fatty alcohols, the composition containing a solid content of at least 40 wt %, said composition having a reduced viscosity and a low gel point.
Claims9
A concentrated aqueous betaine surfactant composition comprising a betaine compound having the formula (I):
- in which R is a C7-C24 alkyl or alkenyl chain;
- R1 and R2 are, independently, a C1-C4 alkyl;
- and n is a number of from 1 to 5;
- and from 0.5 to 3.5 wt %, based on the total weight of the composition, of a fluidizing additive which is (i) a fatty acid dimer composition and, as an optional fluidizing additive (ii) phosphoric esters of fatty alcohols or polyethoxylated fatty alcohols, having the formula
- (R—(OCH2CH2)n—O)x—P(O)—(OH)y
- in which R is a C8-C24 alkyl or alkenyl chain being linear or branched;
- n is a number of from 0 to 10;
- and x and y are independently, a number of 1 or 2, provided that the sum in total of x and y is equal to 3, and the composition containing a solid content of at least 40 wt %.
Dependencies are inferred from the claim text.