C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 77/38 (2006.01) A61K 8/891 (2006.01) A61K 7/06 (1990.01)
Patent
CA 2071637
2071637 9109586 PCTABS00005 These improved compositions include a polymethylalkylsiloxane hair conditioning agent dispersed in a cosmetically acceptable carrier medium such as a hair shampoo, hair conditioner or aerosol spray composition. The polymethylalkylsiloxane is from 0.1 % to about 10 % by weight of the total composition and is of the general formula: R2(CH3)Si(OSi(CH3)2)x(OSiR'CH3)yOSi(CH3)R2, wherein each R is selected from the group consisting of methyl, ethyl and phenyl groups, R' is an alkyl group of from 8 to about 60 carbon atoms where the total number of R' groups present has an average of at least 12 carbon atoms, the values of x and y are such that the ratio of x:y is in the range of from 97:3 to 55:45, the sum of x+y is greater than or equal to about 60 and less than or equal to about 1,333 and the polymethylalkylsiloxane has a melting transition, as measured by a differential scanning calorimeter, between about -25 ·C to +27 ·C. Also claimed is a method of conditioning the hair by applying such a composition to the hair and a method of improving the hair conditioning ability of a cosmetically acceptable hair treating composition by adding such a polymethylalkylsiloxane to such a composition.
Lance-Gomez E. Theodore
Rasoul Husam A. A.
Bereskin & Parr
Dep Corporation
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