Abstract: Provided is a linear motion device having higher rigidity, higher load resistance, and superior guiding precision.

Abstract: Provided is a linear motion device having higher rigidity, higher load resistance, and superior guiding precision.

Abstract: A solventless silicone composition for forming a cured release coating comprising (A) 100 parts by weight of a mixture comprising 99 to 90 parts by weight of (A-1) a linear diorganopolysiloxane having a viscosity of 5 to 1,000 mPa·s at 25° C., having both terminal ends of the molecular chain blocked by dimethylalkenylsiloxy groups, with an alkenyl group content of 0.2 to 10 mol % of all organic groups and 1 to 10 parts by weight of (A-2) a linear diorganopolysiloxane having a viscosity of 1,000 to 10,000 mPa·s at 25° C. having both terminal ends of the molecular chain blocked by trimethylsiloxy groups and having at least two pendant alkenyl groups bonded to silicon atoms, with an alkenyl group content of 0.05 to 0.5 mol % of all organic groups, (B) 3 to 50 parts by weight of an organohydrogenpolysiloxane having a viscosity of 1 to 1,000 mPa·s at 25° C. having at least three silicon-bonded hydrogen atoms per molecule, and (C) a catalytic amount of a platinum catalyst.

Abstract: An essentially solventless silicone composition for forming a cured release coating comprising

Abstract: This invention relates to a silicone composition comprising: (A) a mixture of (i) a linear trimethylsiloxy-terminated polydiorganosiloxane containing at least 2 alkenyl groups having at least 4 carbon atoms and (ii) optionally a linear dimethylalkenylsiloxy-terminated polydiorganosiloxane, (B) a polyorganohydrogensiloxane, (C) a catalytic quantity of a platinum catalyst, and (D) an inhibitor. The silicone compositions of this invention make it possible to form cured release films with low resistance to peeling when peeling is carried out at high speeds, and with the possibility of controlling the resistance to peeling between low and high values when peeling is carried out at low speeds. The silicone compositions of this invention also are not subject to a decrease in the coefficient of residual adhesion in the adhesive material applied onto a cured release film.

Abstract: This invention relates to a silicone release coating composition comprising (A) a diorganopolysiloxane having at least two alkenyl groups in each molecule, (B) an organohydrogenpolysiloxane having at least three silicon-bonded hydrogen atoms in each molecule, (C) a mixture of an alkynyl alcohol and an organosiloxane having at least one aliphatic triple bond-containing alkoxy group, and (D) a platinum group metal catalyst. The silicone release coating compositions of this invention have superior curability and storage stability at room temperature, and produce a uniform coating when used in thin film form on applicator rolls.

Abstract: This invention relates to a silicone release coating composition comprising an organopolysiloxane having at least 2 alkenyl groups in each molecule, an organopolysiloxane having at least 3 silicon-bonded hydrogen atoms in each molecule, a carbon-carbon triple bond-functional alcohol having a boiling point at ambient pressure of at least 140.degree. C., an organosilicon compound having at least 3 carbon-carbon triple bond-functional hydrocarbon groups bonded across oxygen to silicon, and a platinum catalyst. The silicone release coating compositions of this invention have excellent bath stability, form a very stable thin film on applicator rolls, cure rapidly even at relatively low temperatures, have stable curing characteristics during the course of bath aging, and exhibit stable release values during the course of bath aging.

Abstract: The production of organoxy-functional silanes is carried out by the reaction of (A) halosilanes and (B) hydroxy compounds in the presence of (C) a polymer that includes carbon-bonded fluorine. The presence of (C), the polymer that includes carbon-bonded fluorine, acts to decrease foaming during the reaction and minimizes the production of siloxane oligomer by-products.