Abstract: A resistor for suppressing magnetizing inrush current includes a container made of an insulating material and at least one resistive element housed in the container, the resistive element being connected to two bushings provided at the container, the outer surface of the container being coated with a conductive paint, and the paint being connected to the ground, thereby being able to be located between a cable and a switch, and being able to fix the outer surface thereof to a ground voltage level so that human contact safety is not impaired.

Abstract: A resistor for suppressing magnetizing inrush current includes a container made of an insulating material and at least one resistive element housed in the container, the resistive element being connected to two bushings provided at the container, the outer surface of the container being coated with a conductive paint, and the paint being connected to the ground, thereby being able to be located between a cable and a switch, and being able to fix the outer surface thereof to a ground voltage level so that human contact safety is not impaired.

Abstract: The present invention provides an organic fluorescent whitening pigment composition having an excellent hiding power as well as high whiteness, that inorganic pigment compositions cannot achieve, that is, comprising, as a pigment component, a complex salt (compound) represented by the following General Formula: in which X represents same or different hydrogen atom, methyl, ethyl, methoxy, ethoxy, sulfo group or chlorine atom, R1 represents an alkyl, alkenyl, aralkyl, aryl or cycloalkyl group, and R2, R3 and R4 independently represent hydrogen atom or R1, two or three groups of R2, R3 and R4 being capable of forming a heterocyclic group with nitrogen atom in each case.

Abstract: A polyazo compound capable of effectively absorbing near-infrared rays, which can be produced from readily available raw materials is provided, which comprises at least one --OH group or at least one group derived from --OH group at p-position of the azo group in the molecule of the polyazo compound. This compound can be produced by diazotizing a substituted or nonsubstituted aromatic monocyclic or polycyclic compound or heterocyclic compound, each having a diazotizable primary amino group, and successively coupling the resulting diazo component with an azo component having a diazotizable primary amino group, the last azo component being such that --OH group or a group derived from --OH group be present at p-position to the azo group resulting from the azo component.

Abstract: A novel organic white pigment which can be applied to an organic white pigment composition useful as a paper coating agent or an aqueous or oily ink or paint is provided. This organic white pigment consists of an alkylene-bismelamine derivative, represented by the following general formula (I), ##STR1## wherein R is a hydrogen atom or a lower alkyl group containing 1 to 4 carbon atoms or alicyclic group, R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are respectively same or different hydrogen atoms or lower alkyl groups containing 1 to 4 carbon atoms, R.sub.1, and R.sub.2, or R.sub.3, and R.sub.4 may respectively form heterocyclic groups with nitrogen atoms and X is a lower alkylene group containing 2 to 3 carbon atoms.

Abstract: A novel organic white pigment which can be applied to an organic white pigment composition useful as a paper coating agent or an aqueous or oily ink or paint is provided. This organic white pigment consists of an alkylenebismelamine derivative, represented by the following general formula (I), ##STR1## wherein R is a hydrogen atom or a lower alkyl group containing 1 to 4 carbon atoms or alicyclic group, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are respectively same or different hydrogen atoms or lower alkyl groups containing 1 to 4 carbon atoms, R.sub.1 and R.sub.2, or R.sub.3 and R.sub.4 may respectively form heterocyclic groups with nitrogen atoms and X is a lower alkylene group containing 2 to 3 carbon atoms.

Abstract: This invention relates to a novel 1,4-bis-styrylbenzene derivative, in particular, suitable for use as an optical brightening agent, which is represented by the following general formula, ##STR1## in which R and R.sub.1, which may be same or different, represent a member selected from the class consisting of hydrogen atom, halogen atoms, lower alkyl groups and lower alkoxy groups, A and A.sub.1, which may be same or different, represent a member of lower alkylene groups which may be substituted by a member selected from the class consisting of halogen atoms, hydroxyl group and lower alkyl groups and X and X.sub.1, which may be same or different, represent a member selected from the class consisting of --COOM groups and --SO.sub.3 M groups wherein M represents a member selected from the class consisting of hydrogen atom, alkali metals, alkaline earth metals, organic ammoniums and guanidiniums.