Cosmetic, external skin preparation, and medical instrument
AssigneeNissan Chemical Industries, Ltd.
InventorsTakehisa Iwama, Keigo Matsumoto, Takayuki Imoto, Nobuhide Miyachi, Masahiro Goto
Life of this patent
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Abstract
It is an object of the present invention to provide a cosmetic or external skin preparation that has an improved feel in use, e.g., excellent stretching on the skin surface, excellent permeation into the skin, and no stickiness, or crinkles. A cosmetic or an external skin preparation, and a medical instrument, comprising at least one lipid peptide-based gelator that contains a low-molecular lipid peptide of Formula (1): (where R1 to R3 are independently an organic group) or a pharmaceutically usable salt thereof.
Claims26
A cosmetic or an external skin preparation comprising:
- at least one lipid peptide-based gelator that contains a lipid peptide or a pharmaceutically usable salt thereof,
- wherein:
- the lipid peptide is represented by Formula (1):
- where:
- R1 is a C9-23 aliphatic group;
- R2 and R3 are independently a hydrogen atom, a methyl group, an ethyl group, a C3-7 alkyl group that optionally contains a C1-3 branched chain, a phenylmethyl group, a phenylethyl group, or a —(CH2)n—X group;
- at least one of R2 and R3 is a —(CH2)n—X group;
- n is a number of 1 to 4;
- X is an amino group, a guanidino group, a carbamoyl group, a 5-membered ring group optionally containing 1 to 3 nitrogen atoms, a 6-membered ring group optionally containing 1 to 3 nitrogen atoms, or a condensed ring group that contains a 5-membered ring and a 6-membered ring optionally containing 1 to 3 nitrogen atoms;
- and
- m is 1.
A medical instrument comprising:
- at least one lipid peptide-based gelator that contains a lipid peptide or a pharmaceutically usable salt thereof;
- and
- at least one macromolecular compound,
- wherein:
- the lipid peptide is represented by Formula (1):
- where:
- R1 is a C9-23 aliphatic group;
- R2 and R3 are independently a hydrogen atom, a methyl group, an ethyl group, a C3-7 alkyl group that optionally contains a C1-3 branched chain, a phenylmethyl group, a phenylethyl group, or a —(CH2)n—X group
- at least one of R2 and R3 is a —(CH)n—X group;
- n is a number of 1 to 4;
- X is an amino group, a guanidino group, a carbamoyl group, a 5-membered ring group optionally containing 1 to 3 nitrogen atoms, a 6-membered ring group optionally containing 1 to 3 nitrogen atoms, or a condensed ring group that contains a 5-membered ring and a 6-membered ring optionally containing 1 to 3 nitrogen atoms;
- and
- m is 1.
Dependencies are inferred from the claim text.