Abstract: The end-blocked isocyanate prepolymer having an oxadiazine ring according to the present invention is characterized in that at least one of isocyanate groups of a NCO-terminated isocyanate prepolymer, which has NCO groups at the ends and comprises units derived from an oxadiazinetrione compound (A) represented by the following formula (1) and units derived from an active hydrogen compound (B) represented by the following formula (2), is blocked with a unit derived from an end-blocking agent (C) having at least one active hydrogen in one molecule, and that the end-blocked isocyanate prepolymer has a softening point of not lower than 50° C.

Abstract: The end-blocked isocyanate prepolymer having an oxadiazine ring according to the present invention is characterized in that at least one of isocyanate groups of a NCO-terminated isocyanate prepolymer, which has NCO groups at the ends and comprises units derived from an oxadiazinetrione compound (A) represented by the following formula (1) and units derived from an active hydrogen compound (B) represented by the following formula (2), is blocked with a unit derived from an end-blocking agent (C) having at least one active hydrogen in one molecule, and that the end-blocked isocyanate prepolymer has a softening point of not lower than 50° C.

Abstract: The photocationic-curable resin composition of the invention comprises (A) a cationic-polymerizable compound, (B) a photocationic initiator and (C) an aromatic ether compound or an aliphatic thioether compound. The photocationic-curable resin composition has excellent conversion (curability) at low temperatures, and its cured product exhibits excellent adhesive strength and moisture permeation resistance. According to the sealing material comprising the composition, a liquid crystal display or an electroluminescent display having excellent adhesive strength and moisture permeation resistance can be provided with high productivity.

Abstract: Application of a rice blast control agent containing an isothiazolecarboxylic acid derivative of the below-described formula, which shows excellent activity against rice blast (Pyricularia oryzae) in rice cultivation, to the water surface of a paddy rice field results in the absorption of the derivative through roots of rice plants, so that the resistance of the rice plants can be enhanced. ##STR1## wherein R.sup.1 and R.sup.2 independently mean a hydrogen or halogen atom or a particular group, and Y stands for an OR.sub.3 group (R.sup.3 being a hydrogen or alkali metal atom or a particular group), an NHR.sup.4 group (R.sup.4 being a hydrogen atom or a particular group), or a morpholino group.

Abstract: In preparing an iodoalkynyl carbamate by iodinating an alkynyl carbamate with iodine monochloride in water or a solvent mixture composed of water and an organic solvent in the presence of a base, the iodoalkynyl carbamate can be obtained in a yield of as high as 96 to 98% by using the alkynyl carbamate in a concentration of 5 to 20% by weight, dissolving the iodine monochloride in an aqueous solution of hydrochloric acid or an aqueous solution of an alkali metal chloride (the amount of iodine monochloride used being within the range of 1.0 to 1.2 moles per mole of the alkynyl carbamate and the amount of base used being within the range of 0.95 to 2.00 gram equivalents per mole of iodine monochloride), and carrying out the reaction at a temperature of 10.degree. to 40.degree. C. for a period of 1 to 4 hours.According to this process, highly pure iodoalkynyl carbamates which are useful as industrial germicides can be prepared with good selectivity and in high yield.

Abstract: Disclosed herein is a process for the preparation of a thiazolecarboxylic acid chloride represented by the following general formula (II): ##STR1## wherein R.sub.1 represents a hydrogen or halogen atom, a lower alkyl group, a lower alkoxy group, or a lower alkyl group substituted by a halogen atom or lower alkoxy group, and R.sub.2 represents a hydrogen atom, a lower alkyl group, or a lower alkyl group substituted by a halogen atom or lower alkoxy group, which comprises reacting a thiazolecarboxylic acid represented by the following general formula (I): ##STR2## wherein R.sub.1 and R.sub.2 have the same meanings as defined with respect to formula (II), with phosgene or trichloromethyl chloroformate in the presence or absence of a catalyst.

Abstract: An amide derivative represented by the following general formula (I) ##STR1## wherein one of X and Y represents a sulfur atom and the other represents a carbon atom, Z represents a nitrile or thioamide group, each of R.sup.1 and R.sup.2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a halomethyl group or a phenyl group, and R.sup.

Abstract: An amide derivative represented by the following general formula (I) ##STR1## wherein one of X and Y represents a sulfur atom and the other represents a carbon atom, Z represents a nitrile or thioamide group, each of R.sup.1 and R.sup.2 represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 6 carbon atoms, a halomethyl group or a phenyl group, and R.sup.

Abstract: Disclosed are dihalogenothiocyanopyrimidine derivatives of the general formula ##STR1## wherein X and Y are halogen atoms, a process for preparing such derivatives, as well as agricultural and horticultural fungicidal compositions containing such a derivative as active ingredient.

Abstract: Novel pyrazole derivatives of the general formula (I) ##STR1## wherein R.sup.1 represents an alkyl, haloalkyl, alkenyl, haloalkenyl or phenyl group, R.sup.2 and R.sup.3 each represent a hydrogen or halogen atom, or an alkyl, haloalkyl, alkoxy, alkoxyalkyl or phenyl group, and R.sup.4 represents an alkyl, alkenyl, haloalkenyl or phenyl group, or a heterocyclic aromatic group which contains at least one of oxygen, nitrogen and sulfur atoms and may be unsubstituted or substituted,which are useful as agricultural and horticultural fungicides. The pyrazole derivatives can be produced by reacting compounds of the general formula (III) ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above, and X represents a halogen atom,with aminoacetonitriles of the general formula (IV) ##STR3## wherein R.sup.4 is as defined above, or salts thereof.