Abstract: A process for making cycloalkyldimethanol, includes hydrogenating at least one cycloalkyldicarboxylic acid and/or an alkyl ester thereof with a catalyst, to produce a cycloalkyldimethanol, where the catalyst contains ruthenium, tin and platinum. Also, a method for regenerating a used catalyst, includes contacting the used catalyst with a base, where the catalyst includes ruthenium, tin and platinum.

Abstract: An epoxy compound formula (1), and a hydrogenation process for preparing thereof; wherein R1 to R4 each represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; n represents an integer of 0 to 6; and Z1 and Z2 each represent a phenyl group substituted or unsubstituted by one or more alkyl groups or a cyclohexyl group substituted or unsubstituted by one or more alkyl groups.

Abstract: A method for production of unsaturated glycol diester, such as 1,4-diacetoxy-2-butene, is formed of reacting conjugated diene with carboxylic acid and molecular oxygen in the presence of a solid catalyst in the liquid phase under pressure. The catalyst is formed of rhodium and tellurium, which are supported on an inorganic porous carrier. The catalyst is stable, and the unsaturated glycol diester is prepared in high conversion and selectivity.

Abstract: To provide an epoxy resin composition which can provide a cured resin which is excellent in weatherability and electric properties, and which is useful as a resin for coatings, an encapsulant, a casting material, an electric insulator, etc. An epoxy resin composition which contains a hydrogenated epoxy resin obtained by hydrogenation of an aromatic epoxy resin, wherein the hydrogenated epoxy resin has a hydrogenation ratio in an aromatic ring of not less than 85%, a loss ratio of epoxy groups of not more than 20%, and a total chlorine content of not more than 0.3% by weight.

Abstract: A process for preparing 1,6-hexanediol comprising hydrogenating a starting material containing at least one compound selected from the group consisting of adipic acid, .epsilon.-hydroxycaproic acid, .epsilon.-caprolactone and oligomers of .epsilon.-caprolactone, preferably a substance recovered from a reaction mixture resulting from liquid phase oxidization of cyclohexane for the production of cyclohexanol and cyclohexanone, in a liquid phase in the presence of a solid catalyst containing ruthenium and tin.

Abstract: A method for forming a two-layer coating film by applying under specified conditions, onto a material to be coated, two coatings in a state of two layers contacting each other, by the use of a die capable of discharging two coatings in a state of two layers contacting each other and then conducting baking, wherein a cured two-layer coating film superior in appearance and other properties is formed, without causing popping in the formed film during its baking.

Abstract: A process for the preparation of a 3-aminomethyl-3,5,5-trialkylcyclohexylamine, which comprises hydrogenating 3-cyano-3,5,5-trialkylcyclohexylamine in the presence of ammonia and a ruthenium-cobalt catalyst.

Abstract: A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein the hydrogenation reaction is conducted in the liquid phase in the presence of (1) ruthenium, (2) an organic phosphine and (3) a compound of a metal selected from the group consisting of Groups IVA, VA and IIIB in the Periodic Table.According to the present invention, for the production of a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic ester, the reaction is conducted in a homogeneous liquid phase reaction by using the ruthenium,organic phosphine and compound of a metal selected from the group consisting of Groups IVA, VA and IIIB, of the present invention as the catalyst, whereby the desired lactone product can be obtained at high selectivity under a mild condition as compared with the conventional methods.

Abstract: A method for producing 1,4-butanediol by hydrogenating succinic anhydride, succinic acid or .gamma.-butyrolactone in the presence of a catalyst, wherein the hydrogenation reaction is conducted in a liquid phase using as the catalyst a ruthenium type catalyst comprising ruthenium, an organic phosphine and a phosphorus compound of the following formula (1): ##STR1## wherein each of X and Y is an atom or a group selected from the group consisting of a hydrogen atom, a hydroxyl group, a halogen atom, an alkoxy group, an alkyl group and an aryl group.

Abstract: A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein said catalyst is a ruthenium catalyst comprising (1) ruthenium, (2) an organic phosphine and (3) a conjugate base of an acid having a pKa of less than 2.

Abstract: A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein the hydrogenation reaction is conducted in the liquid phase in the presence of (1) ruthenium, (2) an organic phosphine and (3) a compound of a metal selected from the group consisting of Groups IVA, VA and IIIB in the Periodic Table.According to the present invention, for the production of a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic ester, the reaction is conducted in a homogeneous liquid phase reaction by using the ruthenium, organic phosphine and compound of a metal selected from the group consisting of Groups IVA, VA and IIIB, of the present invention as the catalyst, whereby the desired lactone product can be obtained at high selectivity under a mild condition as compared with the conventional methods.

Abstract: A method for producing a lactone by hydrogenating a dicarboxylic acid, a dicarboxylic acid anhydride and/or a dicarboxylic acid ester in the presence of a catalyst, wherein said catalyst is a ruthenium catalyst comprising (1) ruthenium, (2) an organic phosphine and (3) a conjugate base of an acid having a pKa of less than 2.

Abstract: A process for producing aliphatic alcohols by reacting carbon monoxide and hydrogen in a liquid phase in the presence of catalyst components, characterized in that rhodium and a trialkylphosphine represented by the general formula PR.sub.1 R.sub.2 R.sub.3 where each of R.sub.1, R.sub.2 and R.sub.3 is a primary alkyl group, a secondary alkyl group, a tertiary alkyl group or a cycloalkyl group, are used as the catalyst components.