Cosmetics having excellent usability and stability and a method for making the same
AssigneeKokyu Alcohol Kogyo Co., Ltd.
InventorsMari Yoshida, Yuki Kokeguchi
Life of this patent
Estimating the term…
Abstract
In the prior cosmetics, the cosmetic product provided with sufficient storage stability together with excellent usability can not be realized, and it has been an actual state that a cosmetic product having sense of non-tackiness etc. and excellent usability has poor storage stability. The present invention provides a cosmetic for providing a cosmetic product having more excellent usability and storage stability as a cosmetic, and a method for making the same. The cosmetic of the present invention is characterized by comprising an amino acid oil gelling agent and a polyamide resin, thereby a cosmetic product having excellent usability and sufficient storage stability in combination can be realized.
Claims10
A cosmetic comprising an amino acid oil gelling agent and a polyamide resin, wherein the amino acid oil gelling agent is one or more selected from dibutyl ethylhexanoyl glutamide and dibutyl lauroyl glutamide;
- and
- wherein the polyamide resin is one or more selected from an amide-terminated polyamide resin represented by the following general formula (2)
- (wherein, X represents —N(R1)2 group, wherein R1 represents a C8 to C22 linear chain or branched chain alkyl group which may be the same or different from each other, R2 represents a dimer acid residue, R3 represents an ethylenediamine residue, n represents an integer from 2 to 4);
- excluding the cosmetic that at the same time comprises dibutyl lauroyl glutamide, and two polyamide resins comprising
- (1) at least one polyamide resin of formula (2) wherein X represents —N(R1)2 group, R1 is a C14 to C18 alkyl amine group residue, R2 is a dimer dilinoleic acid residue, and n=2 to 4;
- and
- (2) at least one polyamide resin of formula (2) wherein X represents —OR1 group, R1 is a stearyl alcohol residue, R2 is a dimer dilinoleic acid residue, and n=3 to 4;
- and
- excluding the cosmetic comprising at least one polyamide resin of formula (2) wherein X represents —OR1 group and R1 is a stearyl alcohol residue and
- wherein the cosmetic comprises combined total of no more than 20 mass % of one or more silicone oils;
- wherein the cosmetic further comprises one or more oil agents;
- wherein the polyamide resin is 1.0 to 65 mass % of the cosmetic and the one or more amino acid oil gelling agent is 0.1 to 5 mass % of the cosmetic;
- and
- wherein the polyamide resin of formula (2) in which X represents —N(R1)2 group,
- R1 is a C14 to C18 alkyl amine group residue, R2 is a dimer dilinoleic acid residue, and n=2 to 4.
A method for preparing a cosmetic, wherein the method comprises the step of mixing one or more amino acid oil gelling agent and one or more polyamide resin;
- wherein the one or more amino acid oil gelling agent is one or more selected from dibutyl ethylhexanoyl glutamide and dibutyl lauroyl glutamide;
- and
- wherein the one or more polyamide resin is one or more selected from an amide-terminated polyamide resin represented by the following general formula (2)
- (wherein, X represents —N(R1)2 group, wherein R1 represents a C8 to C22 linear chain or branched chain alkyl group which may be the same or different from each other, R2 represents a dimer acid residue, R3 represents an ethylenediamine residue, n represents an integer from 2 to 4);
- wherein the cosmetic excludes a cosmetic that at the same time comprises dibutyl lauroyl glutamide, and two polyamide resins comprising
- (1) at least one polyamide resin of formula (2) wherein X represents —N(R1)2 group, R1 is a C14 to C18 alkyl amine group residue, R2 is a dimer dilinoleic acid residue, and n=2 to 4 and
- (2) at least one polyamide resin of formula (2) wherein X represents —OR1 group, R1 is a stearyl alcohol residue, R2 is a dimer dilinoleic acid residue, and n=3 to 4;
- and
- wherein the cosmetic excludes a cosmetic comprising at least one polyamide resin of formula (2) wherein X represents —OR1 group and R1 is a stearyl alcohol residue, and
- wherein the cosmetic comprises combined total of no more than 20 mass % of one or more silicone oils;
- wherein the cosmetic further comprises one or more oil agents;
- wherein the polyamide resin is 1.0 to 65 mass % of the cosmetic and the one or more amino acid oil gelling agent is 0.1 to 5 mass % of the cosmetic;
- and
- wherein the polyamide resin of formula (2) in which X represents —N(R1)2 group,
- R1 is a C14 to C18 alkyl amine group residue, R2 is a dimer dilinoleic acid residue, and n=2 to 4.
A cosmetic comprising an amino acid oil gelling agent and a polyamide resin, wherein the amino acid oil gelling agent is one or more selected from dibutyl ethylhexanoyl glutamide and dibutyl lauroyl glutamide;
- and
- wherein the polyamide resin is one or more selected from an amide-terminated polyamide resin represented by the following general formula (2)
- (wherein, X represents —N(R1)2 group, wherein R1 represents a C8 to C22 linear chain or branched chain alkyl group which may be the same or different from each other, R2 represents a dimer acid residue, R3 represents an ethylenediamine residue, n represents an integer from 2 to 4);
- excluding the cosmetic that at the same time comprises dibutyl lauroyl glutamide, and two polyamide resins comprising
- (1) an amide-terminated polyamide resin and
- (2) an ester-terminated polyamide resin, and
- wherein the cosmetic comprises combined total of no more than 20 mass % of one or more silicone oils;
- wherein the cosmetic further comprises one or more oil agents;
- wherein the polyamide resin is 1.0 to 65 mass % of the cosmetic and the one or more amino acid oil gelling agent is 0.1 to 5 mass % of the cosmetic;
- and
- wherein the polyamide resin of formula (2) in which X represents —N(R1)2 group,
- R1 is a C14 to C18 alkyl amine group residue, R2 is a dimer dilinoleic acid residue, and n=2 to 4.
Dependencies are inferred from the claim text.