Cosmetic composition containing aqueous gelling agent, and method for producing aqueous gelling agent and cosmetic composition
AssigneeAdeka Corporation
InventorsTakao SAKAMOTO, Yasuhiro TSUSHIMA, Yuki TAKEISHI
Life of this patent
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Abstract
A cosmetic composition including component (A), which is an aqueous gelling agent represented by general formula (1) described in the specification, and a component (B), which is a polymeric thickening agent, wherein the component (A) presents a viscosity of an aqueous solution containing 1 mass % of at 25° C. of 1,000 to 5,000 mPa·s and a clouding point of the aqueous solution containing 1 mass % of component (A) of 60° C. to 80° C., and has a weight average molecular weight of 10,000 to 30,000; a method for producing the aqueous gelling agent and a method for producing the cosmetic composition are provided.
Claims15
A cosmetic composition comprising components (A) and (B) below, wherein the component (A) presents a viscosity of an aqueous solution containing 1 mass % of at 25° C. of 1,000 to 5,000 mPa·s and a clouding point of the aqueous solution containing 1 mass % of component (A) of 60° C. to 80° C., and has a weight average molecular weight of 10,000 to 30,000;
- component (A):
- an aqueous gelling agent represented by general formula (1) below:
- wherein R1, R2, R8 and R9 each independently denote a hydrocarbon group having 4 to 20 carbon atoms, R3, R5 and R7 each independently denote a divalent hydrocarbon group having 2 to 4 carbon atoms, R4 and R6 each independently denote a divalent hydrocarbon group having 3 to 16 carbon atoms, a and e each independently denote a number from 10 to 100, d denotes a number from 100 to 500, and g denotes a number from 0 to 10;
- and
- component (B):
- polymeric thickening agent.
A method for producing an aqueous gelling agent represented by general formula (1) below, the method comprising:
- adding an alcohol compound represented by general formula (2) at a molar ratio of 1.5 to 2.4 and a polyalkylene glycol represented by general formula (3) at a molar ratio of 0.5 to 1.4 to a diisocyanate compound represented by general formula (4) at a molar ratio of 2, and allowing these components to react in the presence of a higher fatty acid metal salt;
- wherein R1, R2, R8 and R9 each independently denote a hydrocarbon group having 4 to 20 carbon atoms, R3, R5 and R7 each denote represent a divalent hydrocarbon group having 2 to 4 carbon atoms, R4 and R6 each independently denote a divalent hydrocarbon group having 3 to 16 carbon atoms, a and e each independently denote a number from 10 to 100, d denotes a number from 100 to 500, and g denotes a number from 0 to 10;
- wherein R10 and R11 each independently denote a hydrocarbon group having 4 to 20 carbon atoms;
- R12 denotes a divalent hydrocarbon group having 2 to 4 carbon atoms;
- and r denotes a number from 10 to 100;
- wherein R13 denotes a divalent hydrocarbon group having 2 to 4 carbon atoms, and t denotes a number from 100 to 500;
- and
- OCN-Q-NCO (4)
- wherein Q denotes a divalent hydrocarbon group having 3 to 16 carbon atoms.
A method for producing a cosmetic composition, comprising:
- a step of obtaining an aqueous gelling agent represented by general formula (1) below by adding an alcohol compound represented by general formula (2) at a molar ratio of 1.5 to 2.4 and a polyalkylene glycol represented by general formula (3) at a molar ratio of 0.5 to 1.4 to a diisocyanate compound represented by general formula (4) at a molar ratio of 2, and allowing these components to react in the presence of a higher fatty acid metal salt, and
- and a step of combining said aqueous gelling agent and a polymeric thickening agent;
- wherein R1, R2, R8 and R9 each independently denote a hydrocarbon group having 4 to 20 carbon atoms, R3, R5 and R7 each denote represent a divalent hydrocarbon group having 2 to 4 carbon atoms, R4 and R6 each independently denote a divalent hydrocarbon group having 3 to 16 carbon atoms, a and e each independently denote a number from 10 to 100, d denotes a number from 100 to 500, and g denotes a number from 0 to 10;
- wherein R40 and R11 each independently denote a hydrocarbon group having 4 to 20 carbon atoms, R12 denotes a divalent hydrocarbon group having 2 to 4 carbon atoms, and r denotes a number from 10 to 100;
- wherein R13 denotes a divalent hydrocarbon group having 2 to 4 carbon atoms, and t denotes a number from 100 to 500;
- and
- OCN-Q-NCO (4)
- wherein Q denotes a divalent hydrocarbon group having 3 to 16 carbon atoms.
Dependencies are inferred from the claim text.