Abstract: The heat- or energy ray-curable composition for members contains an onium gallate salt having a specific structure. The invention is a heat- or energy ray-curable composition comprising a cationic polymerizable compound and an acid generator containing an onium gallate salt represented by general formula (1). In formula (1), R1-R4 are each independently an alkyl group having 1 to 18 carbon atoms or Ar; however, at least one is Ar; Ar is an aryl group having 6 to 14 carbon atoms (not including the number of carbon atoms in the following substituents); some of the hydrogen atoms in the aryl group may be substituted by alkyl groups having 1 to 18 carbon atoms or the like; E represents an element of valence n of group 15 to group 17 (IUPAC notation); n is an integer of 1-3; and R5 is an organic group bonded to E.

Abstract: An issue of this invention is to enhance reliability of an electrolytic capacitor in a manner that an electrolytic solution does not leak from a sealed part while a high initial electrical conductivity is maintained even at a higher environment temperature or in a high-humidity condition. An electrolytic solution for aluminum electrolytic capacitor is described, containing a solvent (A) and an electrolyte (D) represented by general formula (1) below. In formula (1), R1 to R3 each represent alkyl having 1 to 3 carbon atoms, R4 to R7 each represent alkyl having 1 to 3 carbon atoms or a hydrogen atom, and X? represents an anion of an acid (C).

Abstract: In order to render an electrolytic solution not leak from a sealed part even at a higher temperature of the environment or in a high-humidity condition to enhance the reliability of an electrolytic capacitor, an electrolytic solution for an aluminum electrolytic capacitor is described. The electrolytic solution includes an aprotic solvent (A), an electrolyte (D) containing a salt composed of a cation (B) represented by formula (1) and an anion (C), and a compound (E) represented by formula (2) and having a content of 0.01 to 3 wt % relative to the total weight of (A) and (D): wherein in formulae (1) and (2), R1 to R3 are each C1-3 alkyl, R4 to R7 are each C1-3 alkyl or a hydrogen atom, and R8 to R14 are each C1-3 alkyl or a hydrogen atom.

Abstract: An issue of this invention is to enhance reliability of an electrolytic capacitor in a manner that an electrolytic solution does not leak from a sealed part while a high initial electrical conductivity is maintained even at a higher environment temperature or in a high-humidity condition. An electrolytic solution for aluminum electrolytic capacitor is described, containing a solvent (A) and an electrolyte (D) represented by general formula (1) below. In formula (1), R1 to R3 each represent alkyl having 1 to 3 carbon atoms, R4 to R7 each represent alkyl having 1 to 3 carbon atoms or a hydrogen atom, and X? represents an anion of an acid (C).

Abstract: In order to render an electrolytic solution not leak from a sealed part even at a higher temperature of the environment or in a high-humidity condition to enhance the reliability of an electrolytic capacitor, an electrolytic solution for an aluminum electrolytic capacitor is described. The electrolytic solution includes an aprotic solvent (A), an electrolyte (D) containing a salt composed of a cation (B) represented by formula (1) and an anion (C), and a compound (E) represented by formula (2) and having a content of 0.01 to 3 wt % relative to the total weight of (A) and (D): wherein in formulae (1) and (2), R1 to R3 are each C1-3 alkyl, R4 to R7 are each C1-3 alkyl or a hydrogen atom, and R8 to R14 are each C1-3 alkyl or a hydrogen atom.

Abstract: The present invention is to provide an electrolyte with which the withstand voltage and capacitor capacity can be prevented from lowering, and an electrochemical capacitor containing the same. The present invention uses an electrolyte for an electrochemical capacitor comprising a cyclic amidinium salt (B) represented by the general formula (1), wherein the total amount of a cyclic amidinium salt derivative (A) represented by the general formula (2) is not larger than 10 mole % relative to the sum of (A) and (B).

Abstract: The present invention is to provide an electrolyte with which the withstand voltage and capacitor capacity can be prevented from lowering, and an electrochemical capacitor containing the same. The present invention uses an electrolyte for an electrochemical capacitor comprising a cyclic amidinium salt (B) represented by the general formula (1), wherein the total amount of a cyclic amidinium salt derivative (A) represented by the general formula (2) is not larger than 10 mole % relative to the sum of (A) and (B).