Abstract: Powders treated with silicones represented by the following formula (1): R1aR2bR3cSiO(4−a−b−c)/2  (1) wherein R1, R2, R3 a, b and c are as defined herein, are suitable for use in cosmetic materials.

Abstract: A modified silicone compound having a branch polymer comprising a hydrophilic group, this compound being synthesised by performing an addition reaction between an organohydrogenpolysiloxane, and at least one compound chosen from an alkenylated polyoxyalkenylated compound, an alkenylated glycerine compound and an alkenylated sugar in the presence of a platinum catalyst or rhodium catalyst, and a cosmetic material containing this modified silicone compound.

Abstract: By reacting two types of organosiloxane compounds in the presence of an alkaline compound and under conditions that do not substantially promote equilibration reaction, a linear organosiloxane polymer having a single peak molecular weight distribution is simply and economically produced with minimized formation of cyclics.

Abstract: A silicone compound useful in cosmetic materials and skin cleansing compositions which have no oily feel although they spread easily and smoothly, give moist, fresh and dry feelings to the users, have durable effects, and are highly stable to temperature changes and long-term storage. They additionally also absorb makeup cosmetics and sebum stains well when used in a skin-cleansing composition.

Abstract: This invention relates to a makeup containing a specific modified silicone obtained by an economical manufacturing method not requiring an esterification catalyst, having a high reaction rate and therefore leaving little unreacted material, and in particular relates to a makeup with good skin adhesion, good retention and excellent emulsion stability. [Composition] A silicone compound represented by the general formula (1): R1aR2bSiO(4-a-b)/2 (in the formula, R1 is at least one substituent group having 1-30 carbon atoms, chosen from alkyaryl, aralkyl, fluorine-substituted alkyl or organopolysiloxanylsilyl, R2 is a carboxylate residue represented by the following general formula (2): R3 is a saturated or unsaturated hydrocarbon group having 2-30 carbon atoms, a is 1.0-2.5, and b is 0.001-1.5.

Abstract: [Aim]This invention relates to a makeup containing a specific modified silicone obtained by an economical manufacturing method not requiring an esterification catalyst, having a high reaction rate and therefore leaving little unreacted material, and in particular relates to a makeup with good skin adhesion, good retention and excellent emulsion stability.

Abstract: This invention relates to a novel polyhydric alcohol-modified silicone, and to cosmetic products containing the same. When the polyhydric alcohol-modified silicone was used as an oil base, the cosmetic containing it had excellent adhesion to the skin without being sticky and had a clean feel, and when it was used as an emulsifying agent, it had excellent emulsification stability.

Abstract: A cosmetic material comprising as essential cosmetic constituents (A) a silicone-branched silicone compound and (B) a silicone-branched polyether-modified silicone compound.

Abstract: An organic silicone resin powder having a tabular shape the aspect ratio of which is greater than about 1 and comprising a copolymer produced by polymerization reaction between an organopolysiloxane containing at least one reactive group and at least one kind of monomer or oligomer capable of reacting to said reactive group, which can fully achieve its excellent effects when mixed in cosmetic materials, waxes and coating colors, especially in cosmetic materials.

Abstract: A cosmetic material in which a silicone compound represented by the following formula (1) is mixed:

Abstract: Disclosed is a method for the preparation of an organopolysiloxane-grafted graft copolymer of a carbon-carbon backbone chain structure which is free from the troubles due to emission of an irritative odour and instability in storage. The method comprises the steps of copolymerizing a (meth)acryloxyalkyl-terminated organopolysiloxane compound with (meth)acrylic acid or an alkyl (meth)acrylate, optionally, together with a long chain-alkyl (meth)acrylate and/or a (meth)acryloxy-terminated polyoxyalkylene compound in a solution polymerization process to give a polymer solution and subjecting the polymer solution to a catalytic hydrogenation treatment so as to completely eliminate any unpolymerized acrylic compounds.

Abstract: A radiation-curable resin composition comprising (A) an organopolysiloxane having at least one acrylic functional group and (B) a photopolymerization initiator cures, upon exposure to radiation, into a flexible product having a gel fraction of at least 85% by weight.

Abstract: Alkylhalosilanes are produced by first fluidizing a metallic silicon powder with an inert gas, preheating the silicon powder at a temperature between 200.degree. C. and a steady reaction temperature while keeping the silicon powder fluidized, adding a copper catalyst to the preheated silicon powder to form a contact mass, and feeding an alkyl halide into the contact mass whereby the alkylhalosilanes are formed by direct synthesis. This process prevents the copper catalyst from being sintered by thermal hysteresis and activates a high catalysis on the contact mass at the start of reaction. The desired dialkyldihalosilane can be produced at a high selectivity.

Abstract: An alkylhalosilane is prepared by charging a reactor with a contact mass comprising a metallic silicon powder and a copper catalyst, and feeding an alkyl halide into the reactor whereby the silane is formed by direct synthesis. The contact mass contains 1-10,000 ppm of elemental boron. The addition of boron to the contact mass is effective for increasing the throughput of dialkyldihalosilane at desired STY in an inexpensive manner while suppressing formation of unnecessary hydrosilanes and disilanes.

Abstract: An alkylhalosilane is prepared by charging a reactor with a contact mass comprising a metallic silicon powder and a copper catalyst, and feeding an alkyl halide into the reactor whereby the silane is formed by direct synthesis. The use of a metallic silicon powder having a specific particle size distribution ensures effective fluidization whereby the alkylhalosilane of quality is formed at a high selectivity and in high yields.

Abstract: An alkylhalosilane is prepared by charging a reactor with a contact mass comprising metallic silicon powder and a copper catalyst and feeding a reactant gas containing an alkyl halide into the reactor whereby the silane is formed by direct synthesis. A phosphorus compound is added to the contact mass in an amount of 3,000-10,000 ppm calculated as phosphorus. The invention produces a more amount of dialkyldihalosilane in a desirable STY while minimizing the amount of unnecessary disilanes.

Abstract: An (alkylhalo)silane is prepared by charging a reactor with a contact mass comprising metallic silicon powder and a copper catalyst and feeding a gas containing an alkyl halide into the reactor whereby the silane is formed by direct synthesis. The contact mass in the reactor during reaction consists of particles having a mean particle size of 5-150 .mu.m and containing 10-80% by weight of particles having a particle size of up to 30 .mu.m and 10-90% by weight of particles having a particle size of at least 90 .mu.m. The contact mass is well fluidized to ensure rapid and uniform reaction whereby the (alkylhalo)silane is prepared at high selectivity with a minimized elutriating loss of contact mass.

Abstract: An (alkylhalo)silane is prepared by using a fluidized bed reactor equipped with a feed line for reactant gas and a delivery line for product gas, charging the reactor with a contact mass comprising metallic silicon powder and a copper catalyst, and feeding a reactant gas containing an alkyl halide through the feed line into the reactor whereby the silane is formed by direct synthesis. A dust collector is connected to the delivery line for collecting the contact mass carried over with the product gas, which is fed back to the reactor. The feed of the reactant gas is controlled such that a linear velocity multiplied by a density may range from 0.2-2 kg/m.sup.2 .multidot.sec.