PROBLEM TO BE SOLVED: To provide an ultrasonic ion toothbrush which can adequately remove plaque by both anionic action and ultrasonic cavitation action and can efficiently transmit ultrasonic vibration. SOLUTION: This toothbrush has a main body part 1 with an ultrasonic signal generating means 7, an ultrasonic vibrator 8 to generate ultrasonic by signals from the ultrasonic signal generating means 7, and a horn 3 to transmit vibration from the ultrasonic vibrator 8, and a brush part 2 with a brush head part 2A implanted with bristles 5, and a vibration receiving plate 4 to receive vibration from the horn 3 while the plate 4 is integrally fixed on the brush head part 2A, and an ion generating means to generate ions. The main part 1 and the brush part 2 are detachably attached. COPYRIGHT: (C)2004,JPO

Ultrasonic ion toothbrush

A fiber comprising a polyolefin fiber having a finish which comprises an antistatic composition, wherein the fiber with the finish has a hydrostatic head value at least about 102 mm and is capable of being processed into a nonwoven fabric on processing equipment comprising at least one card and means for bonding the fabric at a throughput of at least about 128 pounds/hours for a period of at least two hours without formation of significant solid antistatic composition build-up on the nonwoven fabric processing equipment, and related compositions and processes, and articles made with such fibers.

Process of preparing fabric comprising hydrophobic polyolefin fibers

A denture base of pressure-formed, superplastic alloy plate, and a method of making a metal denture base, includes providing a superplastic alloy plate and a female die having a finishing surface, and pressure-forming the alloy plate on the finishing surface of the female die at a temperature where the alloy exhibits superplasticity.

Swaged metal denture base

The invention relates to a high-absorptivity coating for resisting oxidation and decarburization of a steel billet. The coating comprises the following solid main components in percentage by weight: 20 to 25 percent of refractory clay, 10 to 15 percent of silicon micropowder, 10 to 15 percent of brown fused alumina, 8 to 10 percent of silicon carbide, 3 to 5 percent of ferric oxide, 2 to 3 percent of chromium oxide, 3 to 5 percent of hydrolyzed carboxymethylcellulose and 30 to 35 percent of high-modulus water glass. An auxiliary material of the coating is water; and the adding amount of the water meets the requirement that the volume density of the coating is controlled to be in the range of 1,600 to 1,800 kg/m according to the spraying or brushing requirement. The invention also discloses a preparation method for the coating.

High-absorptivity coating for resisting oxidation and decarburization of steel billet and preparation method thereof

Oil agent for elastic yarn

PURPOSE:To remarkably enhance the suitability of secondary scale on the surfaces of steel products to pickling by coating the products with an agent enhancing the suitability of secondary scale to pickling and with an antioxidant in order before hot-rolling the products CONSTITUTION:Before hot-rolling steel products heated to 1,100-1,400 degC, the products are coated with very finely powdered SiC having using a binder such as sodium silicate or polyphosphoric acid, and they are further coated with an antioxidant consisting of Cr2O3, chamotte, SiO2, Al and sodium silicate The coated steel products are then hot-rolled and hot-coiled Thus, secondary scale is formed by a very small amount during the hot-rolling and the following process, and it can be removed thoroughly by pickling with an aqueous soln of hydrochloric acid or the like in a short time

Toshio Odajima

Papers

Manufacture of steel product with superior suitability to pickling