Abstract: The present invention is a cosmetic containing a silicone resin whose constitutional units consist of general formulae (A) (R13SiO1/2)a, (B) (R22SiO2/2)b, (C) (R3SiO3/2) c, and (D) (SiO4/2) d, where R1, R2, and R3 each independently represent a group selected from an alkyl group having 1 to 8 carbon atoms, an aryl group having 6 to 12 carbon atoms, and a fluorine-substituted alkyl group having 1 to 8 carbon atoms, “a” has a value of 0.2 to 0.5, “b” has a value of 0.0 to 0.1, “c” has a value of 0.2 to 0.6, “d” has a value of 0.2 to 0.5, a+b+c+d has a value of 1.0, a/(c+d) has a value of 0.3 to 0.9, and c/d has a value of 0.4 to 3.0, the silicone resin having a weight-average molecular weight of more than 20000 and 100000 or less. An object of the present invention is to provide accordingly a cosmetic that has no stickiness upon application, has excellent cosmetic durability, and can prevent adhesion to clothes or the like (secondary adhesion).

Abstract: The present invention addresses the problem of evaluating the hydrophobicity of a powder. According to the present invention, a powder is charged into a mixed solvent composed of a lipophilic solvent and a hydrophilic solvent, the voltage rate R of the mixed solvent is measured at predetermined time intervals while adding a lipophilic solvent to the mixed solvent charged with the powder, a parameter x correlating with the concentration of powder is defined for an arbitrary voltage rate R, a continuous function HP(x) of the ratio of a lipophilic solvent corresponding to x is defined, and HP(x) for required x is set as a representative value of a lipophilic solvent ratio distribution and used as an index of hydrophobicity.

Abstract: A cosmetic including at least one cyclic silicone represented by formula (1), and having a boiling point of 205 to 255° C. and a viscosity of less than 5 mm2/s (25° C.). This cosmetic has a light touch, a good spread, and excellent water repellency, forms a uniform cosmetic film, can achieve a feeling of use without a strong oily feeling, and has stability over time and cosmetic persistence when a variety of oil such as a silicone, hydrocarbon oil, and ester, an organic ultraviolet absorber, or an oily component being solid at 25° C. is mixed. (Wherein R1 is a monovalent hydrocarbon group having 2 or 3 carbon atoms, R2, R3, R4, R5, and R6 are each independently a monovalent hydrocarbon group having 1 to 3 carbon atoms, “a” is a positive number satisfying 0<a<4, and “b” and “c” are each independently a number of 0 to 3, provided that (a+b+c)?4.

Abstract: This organic group-modified organosilicon resin is represented by the average composition formula (1). (R13SiO1/2)a(R23SiO1/2)b(R33SiO1/2)c(R12SiO2/2)d(R1SiO3/2)e(SiO4/2)f??(1) [a, b, c, d, e and f are numbers that satisfy 0?a?400, 0<b?200, 0?c?400, 0?d?320, 0?e?320, 0<f?1,000, and 0.5?(a+b+c)/f?1.5.] Because this organic group-modified organosilicon resin can form films softer than those formed with trimethylene siloxysilicate, the cosmetic obtained by blending with said silicon resin feels good when used, has good cosmetic holding properties, spreads easily and has an excellent finish, easy removal, and superior scratch resistance.

Abstract: This organic group-modified organosilicon resin is represented by the average composition formula (1). (R13SiO1/2)a(R23SiO1/2)b(R33SiO1/2)c(R1SiO2/2)d(R1SiO3/2)e(SiO4/2)f ??(1) [a, b, c, d, e and f are numbers that satisfy 0?a?400, 0<b?200, 0?c?400, 0?d?320, 0?e?320, 0<f?1,000, and 0.5?(a+b+c)/f?1.5.] Because this organic group-modified organosilicon resin can form films softer than those formed with trimethylene siloxysilicate, the cosmetic obtained by blending with said silicon resin feels good when used, has good cosmetic holding properties, spreads easily and has an excellent finish, easy removal, and superior scratch resistance.

Abstract: A cosmetic containing (A) an organo(poly)siloxane shown by the following general formula (1). A cosmetic with a refreshing feeling, smooth spreadability as well as high stability and favorable cosmetic sustainability is provided. [where, in the formula, R1 represents a group except shown by the formula (2), selected from a C1-C20 alkyl group and a C6-C20 aryl group; n represents an integer of 0 to 3; R2 and R3 represent R1 or the formula (2); and either or both of R2 and R3 represent formula (2), (where, in the formula, X represents a C2-C20 alkylene group; and Y represents any one of a hydrogen atom, a C1-C20 alkyl group, a C6-C20 aryl group, a C7-C40 aralkyl group, a C1-C20 alkyloxy group, a C6-C20 aryloxy group, a C7-C40 arylalkyloxy group, and a halogen atom.

Abstract: A cosmetic including at least one cyclic silicone represented by formula (1), and having a boiling point of 205 to 255° C. and a viscosity of less than 5 mm2/s (25° C.). This cosmetic has a light touch, a good spread, and excellent water repellency, forms a uniform cosmetic film, can achieve a feeling of use without a strong oily feeling, and has stability over time and cosmetic persistence when a variety of oil such as a silicone, hydrocarbon oil, and ester, an organic ultraviolet absorber, or an oily component being solid at 25° C. is mixed. (Wherein R1 is a monovalent hydrocarbon group having 2 or 3 carbon atoms, R2, R3, R4, R5, and R6 are each independently a monovalent hydrocarbon group having 1 to 3 carbon atoms, “a” is a positive number satisfying 0<a<4, and “b” and “c” are each independently a number of 0 to 3, provided that (a+b+c) <4.

Abstract: A urea group-containing organopolysiloxane represented by the following formula (1), wherein, R1 is —R5—NHCONH2 (R5 is a divalent hydrocarbon group), R2 is any of a hydrogen atom, a hydroxy group, an alkoxy group, an alkyl group, a fluoroalkyl group, an aryl group, and an aralkyl group, R3 is R1 or R2, and R4 is an organopolysiloxane segment represented by the following formula (2), (Q is an oxygen atom or a divalent hydrocarbon group), the urea group-containing organopolysiloxane represented by the formula (1) has one or more R1 in the molecule, when “c” is 0, “a”+“d”+“f”+“h”+“i” is 1 or more. Accordingly, there is provided a urea group-containing organopolysiloxane that can obtain a cosmetic having excellent cosmetic durability while maintaining a light feel and good spreadability, and a method for manufacturing the same, as well as a cosmetic containing the same.

Abstract: An organopolysiloxane that can suppress swelling of a container due to a hydrogen gas derived from Si—H groups and occurrence of an offensive odor derived from aliphatic unsaturated groups, and that is excellent in emulsification stability and has good cosmetic durability, and a cosmetic containing the same. The organopolysiloxane being represented by the following average formula (1): wherein, R1 represents a group selected from an alkyl group having 1 to 30 carbon atoms, etc., R2 represents a divalent organic group having 2 to 15 carbon atoms, R3 represents any of a hydrogen atom and an alkyl group having 1 to 30 carbon atoms, R4s each independently represent a group selected from an alkyl group having 2 to 30 carbon atoms and another organopolysiloxane, “a” is 1 to 500, “b” is 1 to 10, and “c” is 1 to 10.

Abstract: The present invention addresses the problem of evaluating the hydrophobicity of a powder. According to the present invention, a powder is charged into a mixed solvent composed of a lipophilic solvent and a hydrophilic solvent, the voltage rate R of the mixed solvent is measured at predetermined time intervals while adding a lipophilic solvent to the mixed solvent charged with the powder, a parameter x correlating with the concentration of powder is defined for an arbitrary voltage rate R, a continuous function HP(x) of the ratio of a lipophilic solvent corresponding to x is defined, and HP(x) for required x is set as a representative value of a lipophilic solvent ratio distribution and used as an index of hydrophobicity.

Abstract: An organic group-modified organosilicon resin having the average compositional formula (1), which is solid or liquid at 25° C., is suited for use in cosmetics. The resin is able to form an emulsion having a pleasant feel on use, a high internal water phase, and stability over time. In formula (1), a, b, c, d, e, and f are numbers: 0?a?400, 0<b?200, 0?c?400, 0?d?320, 0?e?320, 0<f?1,000, and 0.5?(a+b+c)/f?1.5.

Abstract: A method for producing a hydrosilyl group-containing organic silicon resin of formula (6) in a solid form, wherein after formulae (1) to (3) are hydrolyzed in the presence of an acid catalyst, hydrolysis is carried out by adding hydrosilyl group-containing organic silicon compounds of formulae (4) and (5), followed by neutralization by a base catalyst with the amount thereof being more than a molar equivalent of the acid catalyst, and then by condensation. By so doing, deactivation amount of the hydrosilyl group can be reduced, so that the method for producing the hydrosilyl group-containing organic silicon resin, which is in a solid form without a solvent and to which a hydrosilyl group can be introduced quantitatively and in a large quantity, is provided, R13SiOSiR13??(1) R13SiX1??(2) SiX24??(3) HnR23-nSiOSiR23-nHn??(4) HnR23-nSiX3??(5) (R13SiO1/2)a(HnR23-nSiO1/2)b(SiO2)c(R4SiO3/2)d??(6).

Abstract: An organopolysiloxane that can suppress swelling of a container due to a hydrogen gas derived from Si—H groups and occurrence of an offensive odor derived from aliphatic unsaturated groups, and that is excellent in emulsification stability and has good cosmetic durability, and a cosmetic containing the same. The organopolysiloxane being represented by the following average formula (1): wherein, R1 represents a group selected from an alkyl group having 1 to 30 carbon atoms, etc., R2 represents a divalent organic group having 2 to 15 carbon atoms, R3 represents any of a hydrogen atom and an alkyl group having 1 to 30 carbon atoms, R4s each independently represent a group selected from an alkyl group having 2 to 30 carbon atoms and another organopolysiloxane, “a” is 1 to 500, “b” is 1 to 10, and “c” is 1 to 10.

Abstract: A method for producing a hydrosilyl group-containing organic silicon resin of formula (6) in a solid form, wherein after formulae (1) to (3) are hydrolyzed in the presence of an acid catalyst, hydrolysis is carried out by adding hydrosilyl group-containing organic silicon compounds of formulae (4) and (5), followed by neutralization by a base catalyst with the amount thereof being more than a molar equivalent of the acid catalyst, and then by condensation.

Abstract: Provided is a surface-treated powder, where at least one compound of general formula (1) adheres to the surface of the powder. In formula (1), R2 is a monovalent aromatic hydrocarbon group having 6-12 carbon atoms, R4 is a monovalent non-aromatic hydrocarbon group having 1-30 carbon atoms, R1 and R0 are a group selected from aforementioned groups defined for R2 and R4, and R3 is a group of formula (2), R5 is a divalent hydrocarbon group having 2 to 8 carbon atoms and R6 is an alkyl group having 1 to 6 carbon atoms, a, b, c, and d are integers of from 0-3, 0-200, 1-150, and 0-50, respectively, provided that when a is 0, d and e are integers of from 1-50 and 0-2, respectively, and c/(b+c+d) is 0.25 or more.

Abstract: An organic group-modified organosilicon resin having the average compositional formula (1), which is solid or liquid at 25° C., is suited for use in cosmetics. The resin is able to form an emulsion having a pleasant feel on use, a high internal water phase, and stability over time. In formula (1), a, b, c, d, e, and fare numbers: 0?a?400, 0<b?200, 0?c?400, 0?d?320, 0?e?320, 0<f?1,000, and 0.5?(a+b+c)/f?1.5.

Abstract: An organopolysiloxane having a substituent shown in formula (1), —R1—(NR2—R3-)n-NR4R5 ??(1) wherein R1 represents a divalent hydrocarbon group having 1-10 carbon atoms; R2, R4, and R5 each independently represent a hydrogen atom, a monovalent hydrocarbon group having 1-10 carbon atoms, a quaternary ammonium salt-containing group shown by the formula (2), or a polyoxyalkylene group shown by composition formula (3); R3 represents a divalent hydrocarbon group having 2-10 carbon atoms; at least one quaternary ammonium salt-containing group shown by formula (2) and at least one polyoxyalkylene group shown by the formula (3) are contained in one molecule of organopolysiloxane; and “n” is 0-3; wherein R6 represents a hydrogen atom or a monovalent hydrocarbon group having 1-30 carbon atoms; “a”, “b”, and “c” are each independently 0-100. This organopolysiloxane is able to protect hair through the superior adsorptive affinity, to add conditioning effects.

Abstract: Provided is a surface-treated powder, where at least one compound of general formula (1) adheres to the surface of the powder. In formula (1), R2 is a monovalent aromatic hydrocarbon group having 6-12 carbon atoms, R4 is a monovalent non-aromatic hydrocarbon group having 1-30 carbon atoms, R1 and R0 are a group selected from aforementioned groups defined for R2 and R4, and R3 is a group of formula (2), R5 is a divalent hydrocarbon group having 2 to 8 carbon atoms and R6 is an alkyl group having 1 to 6 carbon atoms, a, b, c, and d are integers of from 0-3, 0-200, 1-150, and 0-50, respectively, provided that when a is 0, d and e are integers of from 1-50 and 0-2, respectively, and c/(b+c+d) is 0.25 or more.

Abstract: A powder surface-treated with an organopolysiloxane represented by the following average compositional formula (1): R1aR2bR3cSiO(4-a-b-c)/2??(1) wherein R1 is selected from the group consisting of C1-30 alkyl, C1-30 fluoroalkyl, C6-30 aryl, and C6-30 aralkyl groups, R2 is a group represented by the following formula (2), provided that R2 is bonded to at least one terminal end of the organopolysiloxane when c equals 0, R3 is a group represented by the following formula (3): wherein R2 is as defined above, each R8 is, independently, selected from the group consisting of C1-30 alkyl, C1-30 fluoroalkyl, C6-30 aryl, and C6-30 aralkyl groups, Q is CdH2d or an oxygen atom, wherein d is an integer of from 1 to 5, k is an integer of from 0 to 500, and h is an integer of from 0 to 3, a is a number of from 1.5 to 2.5, b is a number of from 0.001 to 1.5, and c is a number of from 0 to 1.5.

Abstract: There is disclosed a cosmetic comprises a sugar compound obtained by reacting a hydroxyl group of a saccharide, an isocyanate group-containing organopolysiloxane represented by the following general formula (1), and an isocyanate group-containing organic compound represented by the following general formula (2). As a result, there is provided a cosmetic excellent in cosmetic sustainability and storage stability that can improve such undesirable feelings of use as insufficient spreadability and stickiness, improve the solubility to not only a non-polar oil such as a silicone oil and a light liquid paraffin, but also a polar oil such as a UV-absorber, an ester oil, and a natural animal and vegetable oil, provides non-stickiness with a cosmetic containing the polar oil, and prevent adhesion of the cosmetic to clothes (secondary adhesion).