Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition, a pyrazine compound represented by Formula (1) (component A1), and a polymerization inhibitor (Component B1), in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition containing methyl methacrylate, an ?,?-unsaturated carbonyl compound represented by the following Formula (1), and a polymerization inhibitor, in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: An object of the present invention is to provide a methyl methacrylate-containing composition having high storage and heat stability. This can be solved with a methyl methacrylate-containing composition containing methyl methacrylate, an ester compound having an alpha-hydrogen represented by Formula (1) (component A), and a polymerization inhibitor (component B), in which the concentration of methyl methacrylate is from 99% by mass to 99.99% by mass.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition containing methyl methacrylate, and an alkyl-substituted aryl compound represented by the following Formula (1), in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition comprising methyl methacrylate, and an aryl alkyl ether compound represented by the following Formula (1), in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: The purpose of the present invention is to provide a methyl methacrylate-containing composition with high quality stability during storage. This can be solved with a methyl methacrylate-containing composition comprising methyl methacrylate, a nitrile compound represented by the following Formula (1), and a polymerization inhibitor, in which the concentration of methyl methacrylate is from 99 to 99.99% by mass.

Abstract: An object of the present invention is to provide a catalyst with high yields of target products such as an ?,?-unsaturated aldehyde and an ?,?-unsaturated carboxylic acid. Problems are solved by a catalyst containing at least molybdenum and having a COD (chemical oxygen demand) of the catalyst of greater than 300 ppm and less than 11,000 ppm.

Abstract: An object of the present invention is to provide a catalyst with high selectivity for an ?,?-unsaturated aldehyde, an ?,?-unsaturated carboxylic acid, and the like. Problems are solved by a catalyst containing at least molybdenum and bismuth and having a B/A of 1.3 to 5 when a ratio of the amount of bismuth atoms to the amount of molybdenum atoms, calculated from ICP (inductively coupled plasma) atomic emission spectrometry is A, and a ratio of a peak area of bismuth atoms to a peak area of molybdenum atoms, measured by X-ray photoelectron spectrometry is B.

Abstract: An information processing apparatus includes: a storage that stores a web page whose location on an internet is preliminarily specified in a predetermined description format, and a web page providing circuitry that provides the web page that displays a first link that is a hyperlink to a first content that is displayed within the web page. The web page providing circuitry provides the web page that displays the first link and the first content differ from each other in display shape.

Abstract: A battery pack has a flat battery cell, which includes a flat electric power generating element, at least one armor material for sealing the electric power generating element, and positive and negative tabs (1a, 2a) extending from the electric power generating element to the outside of the armor material through a sealing of the armor material; a circuit board (6) connected to the positive and negative tabs; and a container (16) having two main walls extending along two main surfaces of the flat battery cell. At least a portion of the circuit board is positioned in a space (8) defined by a sealing of the armor material beside the circuit board and the inner surface of the container. At least one of the two main walls of the container is at least partially formed of a metal plate (12a, 14a).