Kao Corporation

Hiroto Tanamachi

Yoshimasa Okamoto

Hirokazu Sakai

Takashi Mizooku

Kenji Hozumi

Yu Horie

Naoki Satoh

Koji Morita

Ryosuke Suzuki

Takeshi Iizaki

Shinichi Tokunaga

Kouzi Morita

Fumiko Sazanami

Mio Ishita

Yoshihisa Kitano

Shunsuke Watabe

Yuji Ishino

A hair cosmetic containing Components (A) and (B): where Rrepresents a hydrogen atom or a carboxy group; and Rrepresents a hydrogen atom or a methyl group.

Hair cosmetic

A hair cosmetic comprising the following ingredients (A) and (B): (A) a cationic polymer having a charge density of 5.0 to 7.0 meq/g and (B) an anionic polysaccharide derivative wherein a part of the H atoms of the OH group of a polysaccharide compound having the constituent unit described below are substituted with a &#x2014;(CH)COOgroup (m is an integer of 1 to 5) at an average substitution degree of 0.5 to 2.0 per constituent unit, and wherein optionally a part of the H atoms of the remaining &#x2014;OH groups are substituted with Calkyl groups and/or alkylene groups, wherein the viscosity of the ingredient (B) in a 2 mass % aqueous solution (25&#xb0; C.) is 0.5 to 800 mPa&#xb7;s 

The invention provides a gel-form hair cosmetic composition, which contains components (a) to (c) emulsified in an aqueous component, and which exhibits an endothermic peak temperature of from 40&#xb0; C. to 75&#xb0; C. as measured through DSC, wherein the components are (a) a polyalkyleneimine derivative or a salt thereof, the polyalkyleneimine derivative being formed of a polyalkyleneimine having a weight average molecular weight of from 3,300 to 50,000, in which one of the substituents of R&#x2014;CO&#x2014;, R&#x2014;(CH)&#x2014;CHX&#x2014;CH&#x2014;, and R&#x2014;NH&#x2014;CO&#x2014; [Ris H, alkyl, alkenyl, or the like; Ris H, alkyl, alkoxy, alkenyl or the like; n is 0 or 1; X is H or OH; Ris H, alkyl, or alkenyl; at least one of Rto Rhas 13 or more carbon atoms; and the entirety of R, R, and Rhas an average number of carbon atoms of 9 or more and a linear group content of 30 mol % or more] is bonded to 40 mol % or more of the nitrogen atoms of the polyalkyleneimine; (b) a C12 to C28 saturated aliphatic alcohol; and (c) a cationic surfactant.

Gel hair cosmetic

Provided is a hair cosmetic composition containing (A) an amidoamine (1) or an etheramine (2), or a salt thereof, (B) a branched fatty acid (3) or a salt thereof, (C) a silicone, and water: in the formula (1), Rrepresents an aliphatic Chydrocarbon group, Rrepresents H or a Calkyl group, and m stands for a number from 2 to 4; in the formula (2), Rrepresents a Calkyl or alkenyl group, and Rand Reach represents a Calkyl group or a group &#x2014;(AO)H, in which A represents a Calkylene group and n stands for a number from 1 to 6; and in the formula (3), Rrepresents a methyl or ethyl group, and p stands for a number from 3 to 36.

Hair cosmetic composition

Provided is a hair cleansing composition containing (A) an amphipathic amide lipid, (B) an anionic surfactant and (C) an organic or inorganic acid, or a salt thereof, and having a pH of from 1 to 4.5 when diluted with water to 20 times the weight. The hair cleansing composition of the present invention has advantages including protecting hair from physical or chemical stimulation and preventing split ends or breakage of hair without impairing the cleansing ability and feeling upon use, imparting hair with a pleasant feeling to the touch and moisture retention properties such as natural smoothness, moist feeling, and suppleness which healthy hair inherently possesses, and has excellent stability.

Hair cleansing composition

Provided is a hair cosmetic composition containing (A) an amphipathic amide lipid, (B) a cationic surfactant or a tertiary amine type compound represented by the following formula (N): wherein, A represents a hydrogen atom or a linear or branched, saturated or unsaturated amide, (N-hydrocarbon)carbamoyl, acyloxy or hydrocarbonoxy group each having 12 to 24 carbon atoms in total, B represents a linear or branched, saturated or unsaturated Chydrocarbon group, and Zand Zeach represents a Calkyl group; or a salt of the compound, and (C) a silicone; and having a pH at 25&#xb0; C. of from 1 to 4.5 when diluted with water to 20 times the weight of the composition.

Provided is a hair cleansing composition comprising (A) an amphipathic amide lipid, (B) an anionic surfactant and (C) a silicone. The hair cleansing composition of the present invention has advantages such as protecting hair from physical or chemical stimulation and preventing split ends or hair breakage without impairing its cleansing ability and feeling upon use, and moreover, gives to hair after shampooing a pleasant feeling to the touch and moisture retention properties such as natural smoothness, moist feeling, and suppleness which healthy hair inherently possesses, and has excellent stability.

The present invention relates to a hair cuticle caring method or volume enhancing method, which comprises treating hair with a composition containing (A) a cationic surfactant and (B) an organic acid or salt thereof in a combination to give, when an aqueous solution containing 1 mM of each of the components is formed, 40 mN/m or less as the surface tension of the aqueous solution at 27&plusmn;0.5&deg; C. By the application of the above-described composition, the lift-up of the hair cuticle can be suppressed, the volume can be enhanced softly, moisturized but stickiness-free feeling is imparted and styling ease is improved.

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Yachiyo, Japan

Hiroto Tanamachi