Abstract:
In view of the above-discussed state of the art, it is an object of the present invention to provide a method of coating an electric wire by which insulated wires excellent in dielectric breakdown voltage can be obtained by a relatively short period of dipping of articles to be coated in an electrodeposition bath. A method of coating an electric wire comprising cationic electrocoating with a cationic electrodeposition coating composition, wherein the cationic electrodeposition coating composition contains a resin composition having a hydratable functional group reducible directly by an electron and results in forming passive coat.
Abstract:
A cationic electrodeposition process and a coating composition therefor which can attain a high throwing power. The process comprises the step (1) of immersing a substrate in a coating composition for cationic electrodeposition, the step (2) of applying a voltage between the substrate (as a cathode) and an anode to form a deposit, and the step (3) of further applying a voltage to the deposit to thereby increase the electrical resistance of the deposit per unit volume. The step (3) serves to form a deposit in uncoated areas of the substrate and the coating composition is one exhibiting a point of time at which the electrical resistance of the deposit per unit volume increases in the course of electrodeposition under constant-current conditions.
Abstract:
In view of the above-discussed state of the art, it is an object of the present invention to provide a method of adhesion of conductive materials which uses a water-based ecofriendly adhesive and can give uniform adhesive layers capable of leading to constant and high levels of adhesion strength and excellent in insulating properties even in the case of molded articles and the like. A method of adhesion of conductive materials comprising the step (1) of forming an adhesive surface having an adhesive resin layer on a conductive material by an electrodeposition step with an adhesive composition and the step (2) of joining an adherend surface of an adhesion target to the adhesive surface having the adhesive resin layer obtained in the step (1), wherein the adhesive composition comprises a hydratable functional group- and unsaturated bond-containing cationic resin composition.
Abstract:
An electrodeposition coating composition which is excellent in bath stability and can give a hardened film enhanced in hardness; and a process for electrodeposition coating. This composition is used in a process for electrodeposition coating which comprises the deposition step of immersing a substrate in an electrodeposition coating composition and applying a voltage between the substrate as an anode or cathode and a counter electrode to form a deposit of the composition on the surface of the substrate and the heating step of heating the deposit, and has an electrodeposition potentiality against the hardening reaction of the deposit.
Abstract:
It is an object of the present invention to provide a method of coating an electric wire having edges, by which insulated wires having a high dielectric breakdown voltage can be attained.A method of coating an electric wire having edges, comprising a step of: forming an insul at ing film by cationic electrodeposition using a cationic electrocoating, the cationic electrocoating containing a resin composition of which a hydratable functional group is reduced directly by electrons and passivated, resulting in deposition of a film, and the cationic electrocoating containing crosslinked resin particles.
Abstract:
It is an object of the present invention to provide an insulating coating composition capable of attaining an insulating film having a high dielectric breakdown voltage, and an insulated wire coated therewith, which has a high insulating property and occupancy ratio. An insulating coating composition comprising a crosslinked resin particle and at least one insulating resin selected from the group consisting of polyvinyl formal resin, polyamide-imide resin, polyamide resin, polyimide resin and polyester-imide resin.
Abstract:
The following pharmaceuticals or foods (1) to (3) suitable for the treatment or prevention of gastritis, gastric ulcer and other diseases caused by Helicobacter pylori: (1) a composition, an antimicrobial agent, an infection preventive, and a food against Helicobacter pylori, comprising as the active ingredient a material having an antimicrobial activity against Helicobacter pylori and at least one member selected from the group consisting of free fatty acids, salts thereof, and esters thereof; (2) an antimicrobial agent, an infection preventive, and a food against Helicobacter pylori, comprising as the active ingredient at least one member selected from the group consisting of iron citrate, ammonium iron citrate, sodium ferrous citrate, iron lactate, and ferric pyrophosphate; and (3) an antimicrobial agent and an infection preventive against Helicobacter pylori, comprising as the active ingredient iron citrate and aqueous ammonia.
Abstract:
The present invention relates to a process for producing amino acid derivatives such as optically active beta-amino acid in short steps with good yield and high optical purity, which comprises reacting a keto acid of the formula (1): wherein R is hydrogen, an optionally substituted hydrocarbon, etc.; R is a spacer; and R is an optionally substituted alkoxy, etc., or a salt thereof, with ammonia or an amine or a salt thereof in the presence of a chiral catalyst and in the presence or absence of an acid and/or a fluorine-containing alcohol, to give an amino acid derivative of the formula (2): wherein Q is a group formed by removing one hydrogen atom from ammonia or an amine; X' is an acid and/or a fluorine-containing alcohol; and b is 0 or 1.
Abstract:
It is an object of the present invention to provide a method of coating an electric wire by which an insulated wire having a high dielectric breakdown voltage can be obtained. A method of coating an electric wire, comprising a step (I) of forming a first insulating film by cationic electrodeposition using a cationic electrocoating, and a step (I I) of forming a second insulating film on the first insulating film formed in the step (I) using an insulating coating, said cationic electrocoating containing a resin composition of which a hydratable functional group is reduced directly by an electron and passivated, resulting in deposition of a film
Abstract:
It is an object of the present invention to provide an insulating method in which an insulating film having a high dielectric breakdown voltage can be attained in a simple manner, and an insulated metal product obtained thereby. An insulating method comprising steps of: (I) forming a first insulating film on the surface of an article to be treated by using an insulating coating; and (II) forming a second insulating film at an area of a coating defect of the first insulating film formed in said step (I) by cationic electrodeposition using a cationic electrocoating, wherein said cationic electrocoating contains a resin composition of which a hydratable functional group is reduced directly by an electron and passivated, resulting in deposition of a film.