Abstract: An organopolysiloxane having a main chain composed of the following repeating units (I), 2 to 199 side chain units (II) and 1 to 50 crosslinkage units (III) per 100 SiO units in the main chain, provided that the organopolysiloxane has at least 2, on average, crosslinkage units (III):

Abstract: A cosmetic composition comprising a polysiloxane copolymer comprising a repeating unit (A) having at least one anionic group, a repeating unit (B) having at least one linear or branched alkyl group having 8 to 64 carbon atoms, and a polysiloxane repeating unit (D), said repeating units (A), (B), and (D) being bonded with one another via diisocyanate residue represented by the following formula (1) wherein X is a divalent hydrocarbon group selected from the group consisting of aromatic hydrocarbon groups, aliphatic hydrocarbon groups, and alicyclic hydrocarbon groups. Cosmetics comprising the composition maintains their effects for a prolonged period of time.

Abstract: A cosmetic comprising (A) a polymer having repeating units represented by the following formula (I) and repeating units represented by the following formula (II) wherein each R1 may be the same with or different from each other and is a hydrogen atom or a methyl group, each of X1 and X2 is a divalent aromatic group having 2 to 10 carbon atoms or a group represented by the formula, —COOR7—, wherein R7 is an aliphatic-group bonded to A or B, A is an organopolysiloxane residue, and B is a group represented by the following formula (1), wherein each R3 may be the same or different from each other and is an alkyl group having 1 to 20 carbon atoms and d is an integer of from 1 to 10.

Abstract: A cosmetic, wherein the cosmetic comprises tetraquistrimethylsiloxysilane represented by the formula (1) [(CH3)3SiO]4Si??(1). The cosmetic has an excellent sensory properties and stability.

Abstract: A glycerin-modified silicone represented by the following formula (1): R1aR2bR3cSiO(4-a-b-c)/2 ??(1) wherein R1 is, independently, an unsubstituted or a partially halogen-substituted alkyl, aryl, aralkyl, aminoalkyl, or carboxyalkyl group, of 1 to 30 carbon atoms, R2 is, independently, an organosiloxyalkyl group represented by the following formula (3): wherein R5 is an unsubstituted or a partially halogen-substituted alkyl group of 1 to 30 carbon atoms, g is a number of from 1 to 5, and h is a number of from 1 to 500, R3 is a group represented by the following formula (4): wherein Q is a C2-20 divalent group, r is a number of from 1 to 200, s is a number of from 1 to 200, R6 is a hydrogen atom, a C1-30 alkyl group or an organic group of the formula: —(CO)—R7, wherein R7 is a C1-30 hydrocarbon group, and t is a number of from 1 to 10, a is a number of from 0.5 to 2.5, b is a number of from 0 to 1.5, and c is a number of from 0.001 to 1.5.

Abstract: A cosmetic, comprising a polymer (A) which comprises a repeating unit represented by the following formula (1), a repeating unit represented by the following formula (2) and a repeating unit represented by the following formula (3), said polymer (A) containing the repeating unit represented by the formula (3) in an amount of from 30 to 90 mass %, based on a total mass of the polymer (A), and being soluble in decamethylcyclopentasiloxane, wherein R is a hydrogen atom or a methyl group, X1 is —COOR1, a phenyl group or an organic group represented by the following formula (4): —COO(CaH2aO)b?R2 ??(4) X2 is an organic group represented by the following formula (5): X3 is a C6-10 divalent aryl group or —C(?O)OR4—, and A is an organopolysiloxane residue represented by the following formula (6):

Abstract: The present invention is a cosmetic, characterized in that it contains an organopolysiloxane having the following general formula: {(CH3)3SiO}3SiCH3??(1) The cosmetic demonstrates excellent volatility and feel when used, and excellent storage stability.

Abstract: An organopolysiloxane having a main chain composed of the following repeating units (I), 2 to 199 side chain units (II) and 1 to 50 crosslinkage units (III) per 100 SiO units in the main chain, provided that the organopolysiloxane has at least 2, on average, crosslinkage units (III):

Abstract: An aqueous composition used for cosmetics, characterized in that the composition comprises 0.5 to 50 wt %, based on weight of the composition, of a copolymer having main chains comprising the repeating units represented by the following formula (1), the repeating units represented by the following formula (2), and the repeating units represented by the following formula (3), said main chains being crosslinked by a compound or oligomer having 2 to 6 (meth)acryl groups wherein R1 is a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms, R2 is a hydrocarbon group having 1 to 24 carbon atoms, R3 is a divalent hydrocarbon group having 1 to 4 carbon atoms, R4 is an aliphatic hydrocarbon group having 1 to 6 carbon atoms or a phenyl group, X is a hydrogen atom, an alkaline metal ion, ammonium ion, or an organic ammonium ion, m is an integer of from 0 to 500 on average, and n is an integer of from 1 to 3.

Abstract: OBJECT: To provide cosmetics comprising a silicone polymer that adheres well to the skin or hair and does not irritate the skin. MEANS TO SOLVE PROBLEMS: A cosmetic comprising (A) a polymer having repeating units represented by the following formula (I) and repeating units represented by the following formula (II) wherein each R1 may be the same with or different from each other and is a hydrogen atom or a methyl group, each of X1 and X2 is a divalent aromatic group having 2 to 10 carbon atoms or a group represented by the formula, —COOR7—, wherein R7 is an aliphatic-group bonded to A or B, A is an organopolysiloxane residue, and B is a group represented by the following formula (1), wherein each R3 may be the same or different from each other and is an alkyl group having 1 to 20 carbon atoms and d is an integer of from 1 to 10.

Abstract: The present invention is a cosmetic, characterized in that it contains an organopolysiloxane having the following general formula: {(CH3)3SiO}3SiCH3 ??(1) The cosmetic demonstrates excellent volatility and feel when used, and excellent storage stability.

Abstract: A cosmetic, wherein the cosmetic comprises tetraquistrimethylsiloxysilane represented by the formula (1) [(CH3)3SiO]4Si ??(1). The cosmetic has an excellent sensory properties and stability.

Abstract: An organopolysiloxane polymer having a glycerol derivative which can swell up by containing at least its own weight of a liquid oil, a pasty composition comprising a liquid oil blended with this polymer, and a cosmetic material containing these polymers or pasty compositions.

Abstract: This invention provides a sterol-modified silicone compound which is low melting, hydrophilic and very suitable for emulsifying, represented by the general formula R1aR2bSiO(4?a?b)/2, and having a melting point of 40° C. or less, and provides a cosmetic material containing this silicone compound having excellent stability and moisture retention properties R1 in the general formula is a monofunctional alkyl group, aryl group, aralkyl group or fluorine-substituted alkyl group having 1–10 identical or different carbon atoms, which does not contain an aliphatic unsaturated bond, and R2 is an organic group represented by the general formula —(CpH2pO(CqH2qO)r—X, where X is a monofunctional residue excepting the hydroxyl group of sterol, a and b are integers satisfying the relations 1.0?a?2.5, 0.001?b?1.0, and 1.5?a+b?2.6, respectively, p is an integer in the range 2–6, q is an integer in the range 2–4, and r is an integer in the range 3–200.

Abstract: A branched tetrasiloxane is prepared by preforming a liquid mixture of a disiloxane compound, an alcohol and an acid catalyst, adding a trialkoxysilane compound to the mixture for reaction, and adding water to the reaction mixture for co-hydrolysis, thereby forming a branched tetrasiloxane. The method is capable of preparing a branched tetrasiloxane, especially methyltris(trimethylsiloxy)silane having a sufficiently high purity to use as cosmetic oil in good yields.

Abstract: A cosmetic composition comprising a polysiloxane copolymer comprising a repeating unit (A) having at least one anionic group, a repeating unit (B) having at least one linear or branched alkyl group having 8 to 64 carbon atoms, and a polysiloxane repeating unit (D), said repeating units (A), (B), and (D) being bonded with one another via diisocyanate residue represented by the following formula (1) wherein X is a divalent hydrocarbon group selected from the group consisting of aromatic hydrocarbon groups, aliphatic hydrocarbon groups, and alicyclic hydrocarbon groups. Cosmetics comprising the composition maintains their effects for a prolonged period of time.

Abstract: This invention is a cosmetic material containing a pasty composition obtained by adding at least one acidic substance selected from a group comprising organic acids, phosphoric acid and phosphates to a mixture comprising a crosslinking type organopolysiloxane polymer having a polyoxyalkylene group and a liquid oil, adding a basic neutralizing agent to adjust the pH to 5-8, and removing volatile components by heating and/or decompression. This pasty composition is a composition wherein the propionaldehyde amount produced by adding an identical amount of water to the composition and heating at 60° C. for 24 hours is 100 ppm or less.

Abstract: A branched tetrasiloxane is prepared by preforming a liquid mixture of a disiloxane compound, an alcohol and an acid catalyst, adding a trialkoxysilane compound to the mixture for reaction, and adding water to the reaction mixture for co-hydrolysis, thereby forming a branched tetrasiloxane. The method is capable of preparing a branched lo tetrasiloxane, especially methyltris(trimethylsiloxy)silane having a sufficiently high purity to use as cosmetic oil in good yields.

Abstract: The present invention relates to a cosmetic composition comprising a silicone compound (a) represented by the following general formula (1),

Abstract: A composition useful in cosmetic preparations comprising a crosslinking type organopolysiloxane and an oil other than a silicone oil, and cosmetic preparations containing this composition, are disclosed. The cosmetic preparation of this invention excels in usability. It spreads lightly and gives a fresh feeling. Upon application, it imparts flexibility, smoothness and an emollient effect without impairing moderate transpiration, and gives a wide range of effects ranging from natural loss to a matt feeling. It also has satisfactory long-term stability.