摘要:
The present invention relates to a liquid organopolysiloxane having fluidity at a temperature of at least 100° C., having a silicon-bonded sugar alcohol-modified group, and having a crosslinked structure comprising a carbon-silicon bond in the crosslinking portion. The liquid organopolysiloxane of the present invention has excellent emulsion characteristics, imparts excellent tactile sensation, and, in particular, when compounded in an external use preparation or a cosmetic composition containing water and oil, takes advantage of the effects of water to suppress oiliness and provide a smooth, thick feeling when applied, a natural feeling to the skin with good compatibility with the skin, excellent moisturizing effects, and an excellent sensation during use without any oily stickiness.
摘要:
The present invention provides a cosmetic exhibiting superior feeling to the touch and a superior uniformity using a novel organopolysiloxane. The cosmetic contains a liquid organopolysiloxane having fluidity at 25° C. and having a crosslinked three-dimensional network structure. The aforementioned liquid organopolysiloxane has a loss factor, tan δ, at a shear frequency of 10 Hz, which is 1 or more.
摘要:
This inventive thickener or gellant for oil materials is characterized by comprising (A) an high molecular weight organopolysiloxane that has a polyglycerol structure-containing hydrophilic group Q and that is represented by the following structural formula (1): R3-q(R11)qSi—O—(SiR112—O)n1—(SiR11Q-O)n2—(SiR11L-O)n3—Si(R)11)qR3-q wherein R11 is a monovalent hydrocarbyl group or a hydrogen atom; L is a chain organosiloxane group, n1, n2, and n3 are numbers in the ranges 200≦n1≦1000, 0≦n2≦20, and 0≦n3≦50; R is a group selected from L and Q; q is an integer in the range from 0 to 3; wherein when n2=0, q is an integer in the range from 1 to 3 and at least one R is Q. The thickener or gellant exhibits an excellent compatibility with a variety of oil systems.
摘要:
The present invention provides a co-modified organopolysiloxane having a specified chemical structure in which a sugar alcohol-modified group and a silylalkyl group having a siloxane dendron structure, and optionally a long-chain hydrocarbon group are present. The co-modified organopolysiloxane is blended, as a surfactant, a powder treatment agent, a gelling agent or the like, or as a cosmetic raw material together with powder (s), oil agent (s) or the like, in a preparation for external use, and in particular, a cosmetic.
摘要:
The present invention provides a cosmetic for hair in which smooth combability without a frictional sensation during cleansing and applying to hair, namely during wetting, the aforementioned effects are not lost by a rinsing operation, smooth combability during and after drying the hair is exhibited, a moisturizing feeling on touch is exhibited without stickiness, and a flexible styling sensation is provided to the hair. A co-modified organopolysiloxane having both a specified hydrophilic group and a siloxane dendron structure-containing group is blended in a cosmetic for hair as an essential component.
摘要:
The present invention provides a co-modified organopolysiloxane having a specified chemical structure in which a sugar alcohol-modified group and a silylalkyl group having a siloxane dendron structure, and optionally a long-chain hydrocarbon group are present. The co-modified organopolysiloxane is blended, as a surfactant, a powder treatment agent, a gelling agent or the like, or as a cosmetic raw material together with powder (s), oil agent (s) or the like, in a preparation for external use, and in particular, a cosmetic.
摘要:
The present invention provides a cosmetic for hair which is superior in view of a sensation during use, effects of styling and/or conditioning hair after use, and cleansing properties. A sugar alcohol-modified silicone having a specified chemical structure in which a sugar alcohol-modified group and optionally a silylalkyl group having a dendron structure, and/or a long chain hydrocarbon group are possessed in one molecule is blended in a cosmetic for hair.
摘要:
The present invention provides a cosmetic for hair in which smooth combability without a frictional sensation during cleansing and applying to hair, namely during wetting, the aforementioned effects are not lost by a rinsing operation, smooth combability during and after drying the hair is exhibited, a moisturizing feeling on touch is exhibited without stickiness, and a flexible styling sensation is provided to the hair. A co-modified organopolysiloxane having both a specified hydrophilic group and a siloxane dendron structure-containing group is blended in a cosmetic for hair as an essential component.
摘要:
To provide a method of producing a polyoxyalkylene-modified polysiloxane composition that is free of acid-mediated carbon-oxygen bond and silicon-oxygen bond cleavage, that is substantially deodorized and also does not generate odor with elapsed time, and that is therefore well suited for use in cosmetic applications, e.g., for hair cosmetics, skin cosmetics, and so forth. A production method of this invention is characterized by removing the odor-causing substance from a polyoxyalkylene-modified polysiloxane composition that has been synthesized by a hydrosilylation reaction, by subjecting the polyoxyalkylene-modified polysiloxane composition to a hydrolysis treatment in the presence of an acidic inorganic salt that is a solid at 25° C. and gives a specific pH at 25° C. in aqueous solution; for example, potassium hydrogensulfate.
摘要:
To provide a method of producing a polyoxyalkylene-modified polysiloxane composition that is free of acid-mediated carbon-oxygen bond and silicon-oxygen bond cleavage, that is substantially deodorized and also does not generate odor with elapsed time, and that is therefore well suited for use in cosmetic applications, e.g., for hair cosmetics, skin cosmetics, and so forth. A production method of this invention is characterized by removing the odor-causing substance from a polyoxyalkylene-modified polysiloxane composition that has been synthesized by a hydrosilylation reaction, by subjecting the polyoxyalkylene-modified polysiloxane composition to a hydrolysis treatment in the presence of an acidic inorganic salt that is a solid at 25° C. and gives a specific pH at 25° C. in aqueous solution; for example, potassium hydrogensulfate.