Abstract: A bleaching composition comprises:(A) hydrogen peroxide and/or a hydrogen peroxide addition compound such as a percarbonate; and(B) at least one activator which is a nitrogen-containing heterocyclic compound in which a halogen atom is substituted for the hydrogen atom of the secondary amino group or a non-heterocyclic N-halo-hindered amine compound, the hydrolysis constant of the activator being within the range of 1.times.10.sup.-10 to 5.times.10.sup.-6 (at 25.degree. C.). Examples of the activator include 1-chloro-piperidine, 1-chloro-2-methyl-piperidine, 1-chloro-isonipecotic acid, 1-chloro- -hexamethyleneimine and 1-chloro-.epsilon.-caprolactam. The bleaching-detergent composition may also contain the components (A) and (B) together with a surfactant. These compositions exhibit an excellent effect concerning bleaching at low temperature, but hardly affect the colors of colored and patterned clothes.

Abstract: A bleaching composition comprises:(A) hydrogen peroxide and/or a hydrogen peroxide addition compound such as a percarbonate; and(B) at least one activator which is a nitrogen-containing heterocyclic compound in which a halgoen atom is substituted for the hydrogen atom of the secondary amino group or a non-heterocyclic N-halo-hindered amine compound, the hydrolysis constant of the activator being within the range of 1.times.10.sup.-10 to 5.times.10.sup.-6 (at 25.degree. C.). Examples of the activator includes 1-chloro-piperidine, 1-chloro-2-methyl-piperidine, 1-chloro-isonipecotic acid, 1-chloro- -hexamethyleneimine and 1-chloro-.epsilon.-caprolactam. The bleaching-detergent composition may also contain the components (A) and (B) together with a surfactant. These compositions exhibit an excellent effect concerning bleaching at low temperature, but hardly affect the colors of colored and patterned clothes.

Abstract: An aqueous vesicle dispersion having surface charge comprising (A) 100 parts by weight of at least one ethoxylate selected from the group consisting of polyoxyethylene castor oil ethers and polyoxyethylene hydrogenated castor oil ethers, (B) 3 to 30 parts by weight of at least one sorbitan polyester of long-chain fatty acid, and (C) at least one ionic surfactant. The components (A), (B), and (C) are dispersed in an aqueous medium in such a manner that the components (A) and (B) form vesicle particles in the aqueous medium and the components (C) provides a surface charge on the vesicle particles.This aqueous vesicle dispersion has an improved dispersion stability and adsorpability of the vesicle particles and can include a hydrophilic or hydrophobic effective component in a state isolated from an aqueous dispersion medium. The aqueous vesicle dispersion can be utilized in the fields of a humectant, a bath salt composition, and a release-controlled topical agent composition.

Abstract: A nonionic surfactant type vesicle dispersion comprising vesicles, dispersed in an aqueous medium, composed of (A) 100 parts by weight of at least one ethoxylate selected from the group consisting of polyoxyethylene castor oil ethers and polyoxyethylene hardened castor oil ethers and (B) 3 to 30 parts by weight of sorbitan polyesters of long-chain fatty acids.This nonionic surfactant type vesicle dispersion can include a hydrophilic or hydrophobic effective component in a state isolated from an aqueous medium.

Abstract: A distortion eliminating circuit includes an amplifier and a difference detector for detecting a difference between two signals. In this case, the input signal to the amplifier and the output signal therefrom, at least one of which is adjusted in level are applied to the difference detector, or the amplifier is made of a push-pull amplifier consisting of transistors opposite in conductivity type and a series connection of resistors is connected in parallel to a series connection of the emitter resistors of the push-pull amplifier to apply the output obtained at the connection point of the series connection of the resistors to the difference detector which is supplied with the input signal to the push-pull amplifier, and the output from the difference detector is added to the output from the amplifier, to thereby eliminate the distortion of the amplifier.