US 7,347,991 B2
Stick compositions
Bruce Steven Emslie, Wirral (United Kingdom); Kevin Ronald Franklin, Wirral (United Kingdom); and Neil Robert Fletcher, Wirral (United Kingdom)
Assigned to Unilever Home & Personal Care USA division of Conopco, Inc., Chicago, Ill. (US)
Filed on May 10, 2004, as Appl. No. 10/842,136.
Claims priority of application No. 0310769.5 (GB), filed on May 10, 2003.
Prior Publication US 2004/0223995 A1, Nov. 11, 2004
This patent is subject to a terminal disclaimer.
Int. Cl. A61Q 15/00 (2006.01); A61K 8/02 (2006.01)
U.S. Cl. 424—65  [424/400; 424/401] 57 Claims
 
1. A solid cosmetic composition comprising a water-immiscible liquid, a cosmetic active suspended therein and a solidifying amount of a gellant for the water-immiscible liquid, wherein the gellant for the water-immiscible liquid comprises a combination of gellant (i), an N-acyl substituted amino acid amide of formula AX—CO—RX in which AX represents the residue of an amino acid amide and RX represents a branched alkyl group containing from 4 to 12 carbon atoms and gellant (ii), a fibre-forming amido structurant selected from:—
(iia) an N-acyl substituted amino acid amide other than gellant (i)
(iib) a cyclodipeptide which satisfies the following general formula:

OG Complex Work Unit Drawing
in which one of R1 and R2 represents an alkyl, alkyl ester group and the other represents an alkyl or alkaryl group and
(iic) 1,2-amido substituted cyclohexane substituted each amido substituent having formula
—(CH2)v—NH—CO—R111 in which R111 represents an alkyl group of from 5 to 27 Carbon atoms and v is an integer selected from zero and one
in an effective relative weight ratio of gellants (i) and (ii)
and the composition is at least translucent.