摘要:
A curable silicone composition comprising: (A) an organopolysiloxane that has a branched molecular structure and contains in one molecule at least two univalent hydrocarbon groups with phenolic hydroxyl groups therein; (B) a linear-chain organopolysiloxane having at least two univalent hydroxyl groups with epoxy groups that are free of aromatic rings; and (C) a curing accelerator.
摘要:
A curable organopolysiloxane resin composition having a viscosity at 25° C. in the range of 0.001 to 5,000 Pa·s, a total acid number as specified by JIS K 2501 (1992) in the range of 0.0001 to 0.2 mg/g, and light transmittance in a cured state equal to or greater than 80%; an optical part comprised of a cured body of the aforementioned composition. The curable organopolysiloxane resin composition of the invention is characterized by good transparency, low decrease in transmittance when exposed to high temperatures, and excellent adhesion when required.
摘要:
To provide an aminoaryl containing organosilicon compound with high efficiency, after protecting amino groups of a haloaniline compound with a specific compound, to form a Grignard reagent and to deprotect the aforementioned groups by reacting the Grignard reagent with a silicon compound.
摘要:
The present invention relates to an active energy ray-curable organopolysiloxane resin composition that comprises an organopolysiloxane resin having an epoxy group and an aromatic hydrocarbon group and a photopolymerization initiator, as well as to a light-transmitting component that comprises cured bodies produced by irradiating the aforementioned organopolysiloxane resin with active-energy rays in the presence of the aforementioned photopolymerization initiator, and to a method for manufacturing the aforementioned light-transmitting component.
摘要:
A silver-based powder is surface-treated with an oxidation inhibitor by means of a mechanochemical reaction. A method of preparation of the silver-based powder includes using an organic solution of the oxidation inhibitor as a lubricating agent, applying mechanical energy to the silver-based powder, and subjecting the silver-based powder to surface treatment with said oxidation inhibitor by means of a mechanochemical reaction.
摘要:
A stabilizing agent for a hydroalkoxysilane such as triethoxysilane and trimethoxysilane characterized by comprising a carboxylate such as an alkali metal salt or an alkali earth metal salt of a carboxylic acid having 1 to 18 carbon atoms; a method for stabilizing a hydroalkoxysilane by combining it with a carboxylate; and a hydroalkoxysilane stabilized with a carboxylate.
摘要:
A method of manufacturing a semiconductor device sealed in a cured silicone body by placing a semiconductor device into a mold and subjecting a curable silicone composition that fills the spaces between said mold and said semiconductor device to compression molding, wherein the curable silicone composition comprises the following components: (A) an organopolysiloxane having at least two alkenyl groups per molecule; (B) an organopolysiloxane having at least two silicon-bonded hydrogen atoms per molecule; (C) a platinum-type catalyst; and (D) a filler, wherein either at least one of components (A) and (B) contains a T-unit siloxane and/or Q-unit siloxane. By the utilization this method, a sealed semiconductor device is free of voids in the sealing material, and a thickness of the cured silicone body can be controlled.
摘要:
An addition-curable organopolysiloxane resin composition having, in a state of cued body, a hardness of 60 to 100 at 25 degree C. and 40 to 100 at 150 degree C. as measured in accordance with the provisions of ASTM D2240-86, said composition comprising: (A) 100 parts by weight of an organopolysiloxane resin comprised of at least alkenyl groups and phenyl groups; (B) 10 to 50 parts by weight of an organooligosiloxane comprised of at least alkeyl groups and phenyl groups; (C) 20 to 100 parts by weight of an organohydrogenoligosiloxane of organohydrogenpolysiloxane; and (D) an addition-reaction catalyst in a catalytic quantity; an optical material that is comprised of a cured body produced from aforementioned components (A), (B), and (C) and possesses the aforementioned characteristics.
摘要:
A silicone rubber adhesive film comprising a composition formed from; (A) organopolysiloxane gum that has at least two alkenyl groups in each molecule; (B) wet-method hydrophobic reinforcing silica that has a specific surface area of at least 200 m2/g; (C) organohydrogenpolysiloxane that contains at least two silicon-bonded hydrogen atoms in each molecule; (D) mixture or reaction mixture from: (a) organopolysiloxane that has a branched molecular chain structure and that contains at least one silicon-bonded alkenyl group in each molecule and at least one silicon-bonded hydrolyzable group in each molecule, and (b) a silicon-containing compound that contains at least one silicon-bonded epoxy-functional hydrocarbon group and at least one silicon-bonded hydrolyzable group; and (E) curing accelerator.
摘要:
A room-temperature-curable organopolysiloxane composition comprising: (A) 100 parts by weight of an organopolysiloxane having a viscosity of from 100 to 500,000 mPa·s at 25° C. and having in one molecule 1.5 or more end groups represented by the general formula: (X)aR13-aSi—, where each X is independently a hydroxyl group or a hydrolyzable group, each R1 is independently a monovalent hydrocarbon group or a halogen-substituted monovalent hydrocarbon group, and a is 1, 2, or 3; (B) 0.01 to 40 parts by weight of a cross-linking agent selected from a silane or a siloxane oligomer where the cross-linking agent has three or more silicon-bonded hydrolyzable groups per molecule; and (C) microparticles of thermoplastic resin containing a platinum compound in such an amount that the content of metallic platinum in component (C) is within the range of 0.01 to 5 wt. %, where the microparticles have an average diameter from 0.1 to 20 μm, component (C) is present in an amount sufficient to provide 1 to 2,000 ppm of metallic platinum in the composition; and (D) 5 to 300 parts by weight of an inorganic powder.