Abstract: There is disclosed a method for producing an N-alkyl-.alpha.-dialkylaminoacetohydroxamic acid compound represented by formula (2), which comprises reacting an .alpha.-dialkylaminoacetic acid ester compound represented by formula (1) with an N-alkylhydroxylamine, wherein the reaction is carried out in water and an ether-series organic solvent, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4, which are the same or different, each represents an alkyl group. According to the method, it is possible to obtain the objective compound in a high yield with a short reaction time, with restrained formation of a by-product.

Abstract: A method of mixing two or more kinds of adhesive resin liquids takes the steps of arranging such that resin outlet ports (6a, 7a) of feed tubes (6, 7) for feeding two or more kinds of resin material liquids which are hardened by reaction face a side skin surface (3b) of an ultrasonic wave transmission solid horn (3), allowing the resin material liquids to flow down passing along the side skin surface (3b) while applying ultrasonic vibrations to the resin material liquids, and guiding the resin material liquids to a distal end face (3a) of the ultrasonic wave transmission solid horn (3), thereby mixing the resin material liquids in an aerial state.

Abstract: A method of mixing two or more kinds of adhesive resin liquids takes the steps of arranging such that resin outlet ports (6a, 7a) of feed tubes (6, 7) for feeding two or more kinds of resin material liquids which are hardened by reaction face a side skin surface (3b) of an ultrasonic wave transmission solid horn (3), allowing the resin material liquids to flow down passing along the side skin surface (3b) while applying ultrasonic vibrations to the resin material liquids, and guiding the resin material liquids to a distal end face (3a) of the ultrasonic wave transmission solid horn (3), thereby mixing the resin material liquids in an aerial state.