Abstract: The method for producing a material loaded with gold nanoparticles, includes: impregnating a carrier with an anionic gold-hydroxo complex solution including a transparent solution that has a pH of not lower than 8, does not contain a halide anion, and contains a conjugate base of a weak acid not coordinated to gold and an anionic hydroxo complex of trivalent gold having a square planar molecular geometry whose at least one ligand is OH? and not containing a halide anion as a ligand; removing water; heating; and washing with water. According to the method, in a method for preparing a gold nanoparticle catalyst using a liquid phase method, a gold compound not containing a halide such as chloride is used as a raw material, and the gold compound can be supported efficiently. Furthermore, a gold nanoparticle-loaded catalyst having high activity can be obtained through a simple preparation method.

Abstract: A curable epoxy resin composition comprising (A) a curable epoxy resin and (B) an organopolysiloxane prepared by equilibrium polymerization and having the average unit formula(R.sup.1 SiO.sub.3/2).sub.a (R.sup.2.sub.2 SiO.sub.2/2).sub.b (R.sup.2.sub.3 SiO.sub.1/2).sub.c (R.sup.3 O.sub.1/2).sub.din which R.sup.1 is an epoxy-functional monovalent organic group, R.sup.2 is a monovalent hydrocarbon group, R.sup.3 is a hydrogen atom or an alkyl group having no more than 4 carbon atoms, a>0, b>0, d>0 and c.gtoreq.0.

Abstract: A two-part composition comprising a liquid composition (I) composed of the components (A), (C), and (E) described below and a liquid composition (II) composed of the components (A) (B), (C), and (D) described below, which yield upon mixing a curable liquid silicone composition comprising(A) an alkenyl-substituted poyorganopolysiloxane;(B) a hydrogen-substituted organopolysiloxane in an amount that provides 0.3 to 10 moles silicon-bonded hydrogen from component (B) per 1 mole alkenyl in component (A);(C) an inorganic filler that has a specific surface of 50 to 500 m.sup.2 /g;(D) an alkoxy-substituted organopolysiloxane; and(E) platinum catalyst in a quantity sufficient to cure the instant composition;wherein the curable silicone composition that results when liquid composition (I) and liquid composition (II) are mixed, is thixotropic and has a viscosity, immediately upon the mixing that is greater than the viscosity of liquid composition (II).