Abstract: A (meth)acrylic monomer is represented by general formula (1) (wherein R1 represents a hydrogen atom or a methyl group; R2 to R4 independently represent —CH3 or —CH2—O—R5, wherein at least one of R2 to R4 represents —CH2—O—R5; R5 represents an alkyl group having 1 to 4 carbon atoms; and Z represents multiple atoms necessary for the formation of an alicyclic hydrocarbon group having 3 to 10 carbon atoms in conjunction with a carbon atom). The (meth)acrylic monomer has a property of high acid degradability and can be removed by the action of an acid.

Abstract: A (meth)acrylic monomer is represented by general formula (1) (wherein R1 represents a hydrogen atom or a methyl group; R2 to R4 independently represent —CH3 or —CH2—O—R5, wherein at least one of R2 to R4 represents —CH2—O—R; R5 represents an alkyl group having 1 to 4 carbon atoms; and Z represents multiple atoms necessary for the formation of an alicyclic hydrocarbon group having 3 to 10 carbon atoms in conjunction with a carbon atom). The (meth)acrylic monomer has a property of high acid degradability and can be removed by the action of an acid.

Abstract: The invention provides a pouch container which is excellent in a design property as well as being excellent in a self-standing stability and a shape retention property, can be volume-reduced, can prevent an adhesive agent from seeping into the content even in the case of using a multilayer film material employing the adhesive agent, and can sufficiently secure a sealing performance between the body side end part joint portion and a closing member.

Abstract: An object of the invention is to provide a break detection method capable of lessening a delay of motor power line break detection. According to the invention, in a motor power line break detection method of an AC servo driver including a current detector and a torque controller, a torque current component 9 is extracted from a three-phase AC detected by current detector 4, 5, a comparison is made between a torque command 1 and the torque current component 9, and if the difference between the torque command and the torque current component exceeds a setup value 21, it is recognized that a motor power line is broken.

Abstract: An object of the invention is to provide a break detection method capable of lessening a delay of motor power line break detection. According to the invention, in a motor power line break detection method of an AC servo driver including a current detector and a torque controller, a torque current component 9 is extracted from a three-phase AC detected by current detector 4, 5, a comparison is made between a torque command 1 and the torque current component 9, and if the difference between the torque command and the torque current component exceeds a setup value 21, it is recognized that a motor power line is broken.