| Thickening composition -> Monitor Keywords |
|
|
 
Thickening compositionRelated Patent Categories: Cleaning Compositions For Solid Surfaces, Auxiliary Compositions Therefor, Or Processes Of Preparing The Compositions, Cleaning Compositions Or Processes Of Preparing (e.g., Sodium Bisulfate Component, Etc.), Specific Organic Component (e.g., Triazines, Etc.), Nitrogen In The Component (except Triazines) (e.g., Amine, Etc.)Thickening composition description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070037728, Thickening composition. Brief Patent Description - Full Patent Description - Patent Application Claims
TECHNICAL FIELD [0001] The present invention relates to thickening compositions containing four components of N-long-chain acyl acidic amino acid and/or a salt thereof, an amphipathic substance, an inorganic salt and water, which simultaneously show suitable thickening performance and superior usability, and cleansing compositions and cosmetic compositions containing the same. BACKGROUND ART [0002] N-long-chain acyl acidic amino acid and/or a salt thereof have long been known to be useful as less irritant materials as compared to conventionally-used skin or hair cleansing compositions containing an anion surfactant such as alkylsulfate, alkylsulfonate and the like as a main component. [0003] However, addition of N-long chain acyl glutamic acid and/or a salt thereof to skin and hair cleansing compositions containing alkylsulfate, alkylsulfonate, polyoxyethylene alkylether sulfate and the like as a main agent for the purpose of reducing the irritation problematically decreases the viscosity. [0004] To solve this problem, attempts have been made to thicken N-long-chain acyl acidic amino acid-containing cleansing agents by the addition of an ester or ether polymer thickener having a polyoxyethylene chain (JP-A-6-158089), addition of a polysaccharide thickener (JP-A-6-264090) and addition of a cellulose natural polymer derivative (JP-A-2003-55690). However, addition of a sufficient amount of a polymer thickener to ensure viscosity has resulted in new problems relating to the sense of use, such as poor foaming, sliminess during rinsing, which is characteristic of polymers, and the like. [0005] In an effort to thicken N-long-chain acyl acidic amino acid-containing cleansing compositions, moreover, addition of colloidal silicate to an aqueous solution of N-long-chain acyl acidic amino acid salt has been known, though a sufficient viscosity as a liquid cleansing composition cannot be achieved (JP-A-7-11288). [0006] On the other hand, as gel compositions containing a N-long-chain acyl acidic amino acid and/or a salt thereof, a gel composition having thixotropy (JP-A-6-057290), and an aqueous thickening gel composition and a liquid oil-in-water emulsion composition (JP-A-9-301846) have been reported. They are used as base materials for the production of skin external agents such as cosmetic serum, cream and the like, which contain N-long-chain acyl acidic amino acid and/or a salt thereof. However, since these aqueous thickening gel compositions and liquid oil-in-water emulsion compositions do not have a foaming power or a cleaning power, a sufficient function as a skin and hair cleansing composition has not been achieved. [0007] Thus, a thickening composition containing n-long-chain acyl acidic amino acid and/or a salt thereof, which shows suitable thickening performance without impairing the foamability and sense of use of n-long-chain acyl acidic amino acid and/or a salt thereof has been strongly desired. DISCLOSURE OF THE INVENTION [0008] The present inventors have conducted intensive studies in an attempt to solve the aforementioned problems and found that a thickening composition simultaneously exhibiting suitable thickening performance and superior usability can be obtained by the use of N-long-chain acyl acidic amino acid and/or a salt thereof, an amphipathic substance, an inorganic salt and water as essential components, and that the use of the thickening composition affords a cleansing agent and a cosmetic composition containing N-long-chain acyl acidic amino acid and/or a salt thereof, which satisfy thickening performance and the sense of use. [0009] Accordingly, the present invention comprises the following embodiments. [0010] [1] A thickening composition comprising four components of (A) N-long-chain acyl acidic amino acid and/or a salt thereof, (B) an amphipathic substance, (C) an inorganic salt and (D) water as essential components, which shows a viscosity of not less than 200 mPas. [2] The thickening composition of [1], wherein the amphipathic substance of component (B) shows an organic value and an inorganic value satisfying the following formula [1]: (inorganic value).ltoreq.-5.times.(organic value)+2500 [1] [3] The thickening composition of [1] or [2], wherein the weight ratio of component (A):component (B) is 90:10-30:70, the weight ratio of component (A):component (C) is 99.5:0.5-50:50 and the weight ratio of the total weight of component (A), component (B) and component (C):component (D) is 2:98-70:30. [4] The thickening composition of any of [1] to [3], wherein the amino acid of component (A) is glutamic acid. [5] The thickening composition of any of [1] to [4], wherein the acyl group of component (A) derives from one or more kinds selected from the group consisting of caprylic acid, capric acid, lauric acid, myristic acid, stearic acid, palmitic acid, oleic acid, linoleic acid, behenic acid, coconut fatty acid, palm fatty acid and hydrogenated beef tallow fatty acid. [6] The thickening composition of any of [1] to [5], wherein the component (B) is one or more kinds selected from glyceryl monofatty acid, propyleneglycol monofatty acid, butyleneglycol monofatty acid, diethyleneglycol monofatty acid, monofatty acid N-methylethanolamide, lauryl glycol hydroxypropylether and polyoxypropylene (1) coconut fatty acid monoisopropanolamide. [7] The thickening composition of any of [1] to [6], wherein the component (B) is glyceryl monofatty acid having not less than 8 and not more than 18 carbon atoms. [8] The thickening composition of any of [1] to [7], wherein the component (C) is an alkaline earth metal inorganic salt. [9] The thickening composition of any of [1] to [8], further comprising (E) polyhydric alcohol. [10] The thickening composition of any of [1] to [9], further comprising (F) chelating agent. [11] A cleansing composition comprising a thickening composition of any one of [1] to [10]. [12] A cosmetic composition comprising a thickening composition of any one of [1] to [10]. DETAILED DESCRIPTION OF THE INVENTION [0011] N-long-chain acyl acidic amino acid and/or a salt thereof to be used as component (A) in the present invention may be those obtained by known methods. For example, Schotten-Baumann reaction of acidic amino acid and fatty acid halide is widely known. [0012] As the acidic amino acid for component (A), glutamic acid, aspartic acid and the like can be used. These amino acids may be any of an L form, a D form and a DL form, or may be a mixture of two or more kinds selected from these. Since stability and usability of the material after acylation are superior, glutamic acid is preferable. [0013] As the acyl group of component (A), a straight chain or branched chain acyl group derived from saturated or unsaturated fatty acids having 8 to 22 carbon atoms can be used. As fatty acid, for example, caprylic acid, capric acid, lauric acid, myristic acid, stearic acid, isostearic acid, palmitic acid, oleic acid, linoleic acid, behenic acid, coconut fatty acid, palm fatty acid, hydrogenated beef tallow fatty acid, and the like can be mentioned. One kind of these may be used, or two or more kinds selected from the above-mentioned group may be used in a mixture. Particularly, coconut fatty acid, lauric acid and myristic acid are preferable, since they are superior in foaming and foam quality. [0014] The salt of component (A) is not particularly limited and, for example, alkali metals such as sodium, potassium and the like, alkaline earth metals such as calcium, magnesium and the like, inorganic salts such as aluminum, zinc and the like, organic amines such as ammonia, monoethanolamine, diethanolamine, triethanolamine and the like, and organic salts such as basic amino acids (e.g., arginine, lysine and the like) and the like can be mentioned. One kind of these may be used, or two or more kinds selected from the above-mentioned group may be used in a mixture. Alkali metal salts, organic amine salts and basic amino acids are preferable, and sodium, potassium, triethanolamine and arginine are particularly preferable, since they are easily available and superior in handling property and the like. [0015] The amphipathic substance to be used as component (B) in the present invention is not particularly limited structurally as long as it shows surface activity, forms an aggregate with component (A), N-long-chain acyl acidic amino acid salt, based on the balance between hydrophilicity and hydrophobicity, and provides a thickening effect. [0016] For the balance between hydrophilicity and hydrophobicity, those having an organic value and an inorganic value satisfying the range defined by the following relational formula 1 are selected. (inorganic value).ltoreq.-5.times.(organic value)+2500 [1] [0017] When the inorganic value exceeds -5.times.(organic value)+2500, the balance necessary for forming an aggregate with component (A), N-long-chain acyl acidic amino acid salt, is disturbed and the thickening effect becomes low. The inorganic value and organic value are calculated from Organic Conception Diagram--Basic and Application (1984) (Yoshio Koda et al., Sankyo Publishing Co., Ltd.) or Emulsion Formulation Design with Organic Conception Diagram (1997) (ed. Nihon Emulsion Co., Ltd.). Both the inorganic value and organic value are 0 or positive numbers. [0018] Specifically, glyceryl monofatty acid, glyceryl difatty acid, glyceryl trifatty acid, propyleneglycol monofatty acid, butyleneglycol monofatty acid, diethyleneglycol monofatty acid Monofatty acid N-methylethanolamide, lauryl glycol hydroxypropylether, polyoxypropylene (1) coconut fatty acid monoisopropanolamide and the like can be mentioned. One kind of these may be used, or two or more kinds selected from the above-mentioned group may be used in a mixture. Of them, glyceryl monofatty acid, propyleneglycol monofatty acid, butyleneglycol monofatty acid, diethyleneglycol monofatty acid Monofatty acid N-methylethanolamide, lauryl glycol hydroxypropylether, and polyoxypropylene (1) coconut fatty acid monoisopropanolamide are preferable, since they are particularly low molecule and superior in usability. [0019] As the glyceryl monofatty acid, glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate, glyceryl monopalmitate, glyceryl monostearate, glyceryl monoisostearate and the like can be specifically mentioned. One kind of these may be used, or two or more kinds selected from the above-mentioned group may be used in a mixture. Of these, glyceryl monocaprylate, glyceryl monocaprate, glyceryl monolaurate, glyceryl monomyristate are preferable, since an aggregate is easily formed with component (A), N-long-chain acyl acidic amino acid and/or a salt thereof, and component (C), a salt. As the fatty acid, a saturated or unsaturated fatty acid having 8 to 18 carbon atoms can be used, which may contain substituent(s) to the extent that the effect of the invention is not inhibited. When the carbon number is not more than 8, the thickening effect is low, and when it is not less than 18, the solubility is low, thus permitting easy precipitation. It is preferably 8-14, since stable and sustained thickening performance can be maintained, and more preferably 10-12, since foaming performance can be maintained. Continue reading about Thickening composition... Full patent description for Thickening composition Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Thickening composition patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Thickening composition or other areas of interest. ### Previous Patent Application: Foaming cleansing preparation and system Next Patent Application: Powdered cleaning compositions Industry Class: Cleaning compositions for solid surfaces, auxiliary compositions therefor, or processes of preparing the compositions ### FreshPatents.com Support Thank you for viewing the Thickening composition patent info. IP-related news and info Results in 0.16038 seconds Other interesting Feshpatents.com categories: Computers: Graphics , I/O , Processors , Dyn. Storage , Static Storage , Printers 174 |
 * Protect your Inventions * US Patent Office filing 
PATENT INFO |
|
