Abstract: Hydroxymethyl-substituted polyfunctional phenols, expressed by the following structure: General structure (I) (wherein X represents: bivalent group (a) expressed by the following structure: General structure (II) (wherein R1, R2, R3 and R4 each independently represent a hydrogen atom or an alkyl group with a carbon atom number of 1 through 4); quadrivalent group (b) expressed by the following structure: General structure (III) (wherein R5 and R6 each independently represent a hydrogen atom or an alkyl group with a carbon atom number of 1 through 4); or bivalent group (c) expressed by the following structure: General structure (IV) (wherein R7 and R8 each independently represent a hydrogen atom or a monofluoromethyl, difluoromethyl or trifluoromethyl group; however, R7 and R8 cannot be both hydrogen atoms); wherein n takes 2 when X is bivalent group (a), takes 4 when X is quadrivalent group (b), or takes 2 when X is bivalent group (c)).

Abstract: The present invention provides alkyl-substituted tetracyclododecenecarboxylic acid esters presented by the general formula (I): wherein R1 is an alkyl group having 1 to 4 carbon atoms and R2 is a hydrocarbon group having 1 to 12 carbon atoms. Further, the represent invention provides (meth)acrylic acid addition products of alkyl-substituted tetracyclododecenecarboxylic acid esters represented by the general formula (II): wherein R1 is an alkyl group having 1 to 4 carbon atoms, R2 is a hydrocarbon group having 1 to 12 carbon atoms, and R3 is a hydrogen atom or a methyl group.

Abstract: Hydroxymethyl-substituted polyfunctional phenols, expressed by the following structure:

Abstract: The invention provides a partially protected trisphenol having the general formula (I) wherein R1 is an alkyl group of 1-4 carbons or an alkoxyl group of 1-4 carbons, R2 is an alkyl group of 1-6 carbons or a cycloalkyl group of 5 or 6 carbons, X1 is a hydrogen atom, an alkoxycarbonylmethyl group wherein the alkyl group has 1-4 carbons, an alkoxycarbonyl group wherein the alkyl group has 1-4 carbons or a tetrahydropyranyl group, X2 is a hydrogen atom, an alkoxycarbonylmethyl group wherein the alkyl group has 1-4 carbons, an alkoxycarbonyl group wherein the alkyl group has 1-4 carbons or a tetrahydropyranyl group, provided that when X1 is a hydrogen atom, X2 is not a hydrogen atom, and when X2 is a hydrogen atom, X1 is not a hydrogen atom; and m is an integer of 0, 1 or 2, and n is an integer of 0, 1, 2 or 3.

Abstract: The present invention provides alkyl-substituted tetracyclododecenecarboxylic acid esters presented by the general formula (I): 1

Abstract: A carboxylic acid tertiary alkyl ester (Chemical formula 1) of high purity is obtained at a high yield ratio, by continually adding an esterification agent possessing a monovalent acid group, which agent is ester-interchangeable with a tertiary alcohol, to a mixed fluid of a carboxylic acid and a tertiary alcohol: R1(COOR2)n.

Abstract: A carboxylic acid tertiary alkyl ester (Chemical formula 1) of high purity is obtained at a high yield ratio, by continually adding an esterification agent possessing a monovalent acid group, which agent is ester-interchangeable with a tertiary alcohol, to a mixed fluid of a carboxylic acid and a tertiary alcohol: