US 2013/0171218 A1Published application

Dual function product

AssigneeL'oreal

InventorsHy Si Bui, Mohamed Kanji, Liana Esposito

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Abstract

Disclosed is a dual function product with a receptacle for storing the product; a structured sleeve composition located within the receptacle that has at least one straight-chain low molecular mass N-acyl glutamic acid diamide, at least one N-acyl glutamic acid diamide, at least one gel-promoting solvent, at least one block copolymer having at least one hard segment and at least one soft segment, at least one solvent capable of solubilizing the at least one hard segment and/or the at least one soft segment of the block copolymer, and optionally at least one active ingredient, and a core composition disposed within the sleeve, the core composition having at least one active ingredient; and at least one non-volatile solvent, and wherein the core composition has a melting point less than that of the sleeve composition. Methods of making and using the product are also disclosed.

Claims22

Dependent claims

A dual function product comprising:

a) a receptacle for storing the product;
b) a structured sleeve composition located within the receptacle, the composition comprising:
(i) at least one straight-chain low molecular mass N-acyl glutamic acid diamide;
(ii) at least one branched-chain low molecular mass N-acyl glutamic acid diamide;
(iii) at least one gel-promoting solvent;
(iv) at least one high molecular mass block copolymer having at least one hard segment and at least one soft segment;
(v) at least one solvent capable of solubilizing the at least one hard segment and/or the at least one soft segment of the block copolymer;
and
(vi) optionally, at least one active ingredient, wherein the structured sleeve composition has a hardness value ranging from about 30 to about 300 gf, and a melting point of about 50° C. or higher, does not require use of wax as a structuring agent, and
c) a core composition disposed within the sleeve, the core composition comprising:
i) at least one active ingredient;
and
ii) at least one non-volatile solvent, and wherein the core composition has a melting point less than that of the sleeve composition.

10 more elements

A process for making a dual function product involving the steps of:

a) providing a receptacle;
b) forming a structured sleeve composition by employing the steps of:
i) providing a first sleeve composition comprising:
(1) at least one straight-chain low molecular mass N-acyl glutamic acid diamide having a straight-chain alkyl group;
(2) at least one branched-chain low molecular mass N-acyl glutamic acid diamide having a branched-chain alkyl group;
and
(3) at least one gel-promoting solvent;
ii) providing a second sleeve composition comprising:
(4) at least one high molecular mass block copolymer having at least one hard segment and at least one soft segment;
and
(5) at least one solvent capable of solubilizing the at least one hard segment and/or the at least one soft segment of the block copolymer;
and
(6) optionally, at least one active ingredient;
c) mixing the first sleeve composition and the second sleeve composition at a temperature of from about 90° C. to about 125° C., to form a heated composition;
d) pouring the heated composition into the receptacle and allowing it to cool, thereby forming a structured sleeve within the receptacle, wherein the structured sleeve composition has a hardness value ranging from about 30 to about 300 gf, a melting point of about 50° C. or higher, and does not require use of wax as a structuring agent;
e) providing a core composition comprising:
i) at least one active ingredient;
and
ii) at least one non-volatile solvent, wherein the core composition has a melting point less than that of the structured sleeve composition;
and
f) pouring the core composition into the structured sleeve.

18 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/583,713Filed 10 Mar 2011
Priority: 10 Mar 2010
Published: 4 Jul 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

A61K 8/0233
Solid or semisolid forms: distinct layers, e.g. core/shell sticks
A61K 8/342
Alcohols: alcohols having more than seven atoms in an unbroken chain
A61K 8/442
Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof:…
A61K 8/8111
Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of…:…