Abstract: An electrodeposition paint composition which contains a titanium oxide pigment coated with 1 to 10% by weight of an zinc compound in terms of metal zinc based on the titanium oxide. It is possible by use of the composition to form a coating film excellent in corrosion resistance without using an anticorrosive pigment having a problem on measures against environmental pollution.

Abstract: A blocked isocyanate group-containing electrocoating composition comprising at least one dialkyltin aromatic carboxylate and at least one bismuth or zirconium compound as a combined curing catalyst. This electrocoating composition gives an electrocoating film superior in corrosion resistance and low-temperature curability and has good bath stability over an extended period.

Abstract: An electrodeposition paint composition which contains at least one lanthanum compound. When this composition is used, electrolytically deposited coating films exhibiting excellent corrosion resistance can be provided, without using rust inhibiting pigments such as of lead compounds or chromium compounds which are liable to cause environmental pollution.

Abstract: A microwave heating apparatus comprising a stripline receiving a supply of a microwave from a coaxial line. The stripline comprises a center conductor formed on a dielectric base plate, the rear surface of which is formed with a ground conductor, wherein a plurality of slits are arranged distributed in the propagating direction of the microwave on the center conductor or ground conductor, thereby to form a ladder circuit portion. A material being heated such as a paper sheet is transferred on the ladder circuit portion, while the same is heated by the microwave leaked through the slits of the center conductor or the ground conductor.

Abstract: An improved process for the production of rubber hydrochloride sheet is described in which a rubber sheet is advanced through a reaction zone essentially in one direction while totally immersed in a solution of hydrogen chloride in an organic solvent capable of swelling the rubber, flotation of the rubber sheet in the reaction solution being prevented, and the slack in the sheet caused by the initial swelling thereof being taken up to keep the sheet in substantially fully extended form to prevent it from contacting itself while in tacky condition, washing the sheet with an organic solvent or mixture thereof capable of removing the entrained, unreacted hydrogen chloride and other contaminants, drying the sheet in air at about 60.degree. C. to 80.degree. C., and calendering the still warm sheet to a finished rubber hydrochloride sheet of uniform thickness; the preferred solvent for both the hydrochlorination and washing operations being ethyl acetate.

Abstract: A magnetron constructed by locating a pair of permanent magnets in a vacuum container which is an anode cylinder (i.e. shell) of magnetic material and has upper and lower covers of magnetic material to form a magnetic circuit. A high frequency resonator is formed by attaching anode vanes directly to the internal wall of the anode cylinder and providing a film of highly conductive material on the internal wall of the anode cylinder between the anode vanes. Terminals for the supply of power to a cathode disposed between the permanent magnets pass through a hole in at least one of the permanent magnets and one of the covers of the magnetic material. An antenna, or probe, extends out of a hole in the side wall of the anode cylinder, and heat radiative fins are attached directly to the external wall of the anode cylinder.