TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preparation: No general preparation given. Preferred Composition: The 1,3,4,6-tetrakis (carboxyalkyl)glycoluril compound is of formula (II). The glycidyl glycoluril compound is of formula (III). The allyl glycoluril compound is of formula (IV). The tetraallyl glycoluril compound is of formula (V).    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: Alternately, the epoxy resin composition contains glycidyl glycoluril compound as crosslinking agent, epoxy resin, and at least a component chosen from glass filler, hardening agent, hardening accelerator, curing catalyst, polyester resin, organosiloxane, rubber particles, and additive. The alkali developing-type photocurable heat-curable resin composition further contains epoxy compound or epoxy resin except glycidyl glycoluril compound, and a diluent, a polybutadiene compound, and a polyurethane compound. The thermosetting resin composition preferably comprises organopolysiloxane polymer (A1) of formula (VIII), glycoluril ring-containing organo hydrogen-polysiloxane polymer (B1) of formula (IX), hardening accelerator, and inorganic filler. The content of silicon-hydrogen groups in component (B1) is 0.8-4.0 mol with respect to 1 mol allyl groups in component (A1). The crosslinking agent is isocyanurate compound of formula (VI) or (VII). The compound (B) is chosen from organic compound (B1) having alkenyl group, organic-modified silicone compound (B2) obtained by carrying out hydrosilylation reaction of chain shape and/or cyclic organo hydrogen siloxane having two hydrosilyl groups in 1 molecule. The component (B1) is chosen from polybutadiene, vinyl cyclohexane, cyclopentadiene, divinyl biphenyl, bisphenol A diarylate, trivinyl cyclohexane, glycoluril compound of formula (X), triaryl isocyanurate, methyl diallyl isocyanurate. The component (B2) is polyorganosiloxane of cyclic form and/or chain shape having two hydrosilyl groups in 1 molecule.R=alkyl or phenyl;n=1-50;p=1-30;andm=0-5.X=H, lower alkyl or aryl. Preferred Definitions:    alkenyl=vinyl or (meth)acryloyl.    SPECIFIC COMPOUNDS - 56 Glycoluril compounds are disclosed e.g. 1,3,4,6-tetrakis(carboxymethyl)glycoluril compound of formula (Ia), 1,3,4,6-tetrakis(2-carboxylethyl)glycoluril compound, 1,3,4,6-tetrakis(carboxylmethyl)-3a-methyl-glycoluril compound, 1,3,4,6-tetrakis(2-carboxylethyl)-3a-methyl-glycoluril compound, and 1,3,4,6-tetrakis (carboxylmethyl)-3a,6a-dimethyl glycoluril compound.    EXAMPLE - 2.04 g N,N'-carbonyl bis(glycine methyl), 726 mg 40% glyoxal aqueous solution, 10 ml acetic acid, and 49 mg sulfuric acid were supplied into a reactor, stirred at 110 degrees C overnight, and cooled to room temperature. 50 ml Acetone was added to the resultant mixture, precipitated by filtration, and dried to obtain 1.26 g 1,3,4,6-tetrakis(carboxylmethyl)glycoluril compound (67%) as white crystals having melting point of 223-239 degrees C.