Abstract: Disclosed is a method of disposal of metallic aluminum-containing solid waste comprising the steps of reacting radioactive solid waste containing metallic aluminum with an alkali solution to generate a hydrogen gas and then mixing the resulting reaction liquid with a solidifying material containing a latent hydraulic material as a main component to solidify the liquid. According to the method of the invention, solidification of aluminum-containing radioactive solid waste in a highly filled state (high concentration) is feasible and a solid having excellent mechanical strength and properties of preventing oozing of radioactive nuclide can be obtained.

Abstract: A high-strength composite material obtained by kneading a mixture comprising a non-hydraulic inorganic material, a water-soluble polymer and water, molding the kneaded mixture, drying the thus molded material and, optionally, treating the dried molded material with an isocyanate compound, and a process for producing a high-strength composite material which comprises the steps of kneading a mixture comprising a non-hydraulic inorganic material, a water-soluble polymer and water, molding the kneaded mixture, and drying the thus molded material.

Abstract: A hydraulic composition comprising blast furnace slag powder, a water-soluble polymer and an alkaline substance, and a high-strength composite material produced by kneading and molding a composition which comprises blast furnace slag powder, a water-soluble polymer, an alkaline substrate and water, and wet curing the molded composition. The high-strength composite material has high bending strength and excellent water resistance by using uncostly blast furnace slag powder.

Abstract: Disclosed herein are i) a resin composition comprising (A) a di-(meth)acrylic acid ester of a carbonate diol having an average molecular weight of 500 to 3000 or of an addition compound of the carbonate diol with an .epsilon.-caprolactone, (B) a monoethylenically unsaturated monomer and optionally, (C) an initiator of photopolymerization, ii) a di-(meth)acrylic acid ester of an addition compound of a carbonate diol having an average molecular weight of 500 to 3000 with an .epsilon.-caprolactone and iii) a di(meth)acrylic acid ester represented by the formula: ##STR1## wherein R.sup.1 represents an alkylene group having 4 to 10 carbon atoms, R.sup.2 represents a hydrogen atom or a methyl group, the mean values of a and b are 0 to 5, respectively, the mean sum of a plus b is 0.5 to 5 and the mean value of l is 1 to 10.

Abstract: Disclosed herein are novel diesters of (meth)acrylic acid represented by the following formula: ##STR1## wherein the mean values of m and n are respectively 0 to 5, preferably 0 to 3, the mean value of m+n is 1 to 10, preferably 1 to 6, and R represents H or CH.sub.3.Also, disclosed herein are resin compositions comprising said diester(s) of (meth)acrylic acid, polyurethane (meth)acrylate(s), monoethylenically unsaturated monomer(s) and initiator(s) of photopolymerization as an optional component.

Abstract: Disclosed herein are (i) a resin composition comprising (A) a di-(meth)acrylic acid ester of a carbonate diol having an average molecular weight of 500 to 3000 or of an addition compound of the carbonate diol with an .epsilon.-caprolactone, (B) a monoethylenically unsaturated monomer and optionally, (C) an initiator of photopolymerization, (ii) a di-(meth)acrylic acid ester of an addition compound of a carbonate diol having an average molecular weight of 500 to 3000 with an .epsilon.-caprolactone and (iii) a di-(meth)acrylic acid ester represented by the formula: ##STR1## wherein R.sup.1 represents an alkylene group having 4 to 10 carbon atoms, R.sup.2 represents a hydrogen atom or a methyl group, the mean values of a and b are 0 to 5, respectively, the mean sum of a plus b is 0.5 to 5 and the mean value of l is 1 to 10.

Abstract: Disclosed herein is a base material having dyed membrane(s) on the surface thereof, the dyed membrane(s) being obtained by a process comprising the steps of applying a photoreactive resin composition (D), which comprises (i) a copolymer (A) of a vinyl monomer having photosensitive group(s) and another vinyl monomer which is copolymerizable with the vinyl monomer having photosensitive group(s) and has group(s) having an affinity for an anionic dyestuff, (ii) an initiator (B) of photo-reaction as an optional component of the photoreactive resin composition (D) and (iii) a solvent (C), onto the surface of the base plate, thereby forming a membrane from the thus applied resin composition (D) on the surface of the base material, irradiating the thus formed membrane(s) with activating light, thereby initiating a reaction in the membrane, and thereafter dyeing the thus treated membrane with the anionic dye.

Abstract: A novel (meth)acrylate represented by the general formula [I]: ##STR1## wherein R.sub.1 stands for a hydrogen atom or an alkyl group having 1 to 12 carbon atoms; R.sub.2 and R.sub.3 each stand for a hydrogen atom or a methyl group; the mean value of m is 1 to 10 and the mean value of n is 1 to 10 and a resin composition comprising the same.