摘要:
Devulcanized rubber in which sulfuric crosslinking bonds are cut and which contains carbon black particles having very small diameters. Vulcanized rubber of discarded products is devulcanized by heating it at a temperature of 180.degree. C. --350.degree. C. and applying a shearing pressure of 10-150 kg/cm.sup.2 thereto. Reclaimed rubber products are manufactured by vulcanizing and molding, into desired shapes, a material made of only devulcanized rubber in which sulfuric crosslinking bonds are cut and which contains carbon black particles having very small diameters or a material made of the devulcanized rubber mixed with virgin unvulcanized rubber.
摘要翻译:其中硫酸交联键被切割并含有具有非常小直径的炭黑颗粒的脱硫橡胶。 将废弃产品的硫化橡胶在180℃-350℃的温度下加热并对其施加10-150kg / cm 2的剪切压力进行脱硫。 再生橡胶制品通过硫化和成型制成所需形状的仅由硫化交联键切割并含有非常小直径的炭黑颗粒的脱硫橡胶制成的材料或由脱硫硫化橡胶混合的原料未硫化的材料 橡胶。
摘要:
The present invention provides a method of manufacturing a composite material made of a rubber and a clay mineral dispersed uniformly therein. The method proceeds exchanging inorganic ions of the clay mineral with organic onium ions to organize the clay mineral; mixing the organized clay mineral and a process oil and/or a plasticizer; and mixing the rubber material with the mixture of the organized clay mineral and the process oil and/or the plasticizer. Process oil and/or plasticizer are intercalated into the organized clay mineral. As a result, the interlayer distance of the clay mineral is enlarged. The most favorable mode of the present invention is for a barrier material against water, gas and the like and for a rubber material required for an improved mechanical property.
摘要:
An automobile weather strip including at least (a) a weather strip body formed from a first composition including at least one rubber polymer and at least one chemical suitable for effecting sulfur-vulcanization, and (b) a decorative layer formed from a second composition including at least one thermoplastic elastomer and hydrotalcite as a discoloration-preventing agent for the decorative layer. The decorative layer is directly adhered onto the weather strip body.
摘要:
A layered molding and method for making the same which has excellent anti-permeability to gasoline. The layered molding is defined by a fluoroplastic or polyamide plastic and an epichlorohydrin rubber. The fluoroplastic is a copolymer formed from at least two precursors selected from the group consisting of hexafluoropropylene, tetrafluoroethylene, and vinylidene fluoride, which are selected within a plotted range to preferably form a binary or tertiary composition. The epiclorohydrin rubber contains organic phosphonium. The resulting molding layer does not require an adhesive agent.
摘要:
A fuel absorbent is provided in which polymer particles having a fuel absorbing ability are contained or dispersed in a binder matrix permeable to fuel. The fuel permeates the binder and is absorbed by the polymer particles. A process is provided for making the fuel absorbent by mixing polymer particles having fuel absorbing ability with a binder dissolved in a solvent, to thereby obtain a dispersion mixture having the polymer particles dispersed therein. The dispersion mixture is then dried to cause the polymer particles to be dispersed in a matrix of the binder. The fuel absorbent has excellent durability and fuel absorbing/desorbing ability.
摘要:
A method of producing β-SiAlON includes a sintering process, in which β-SiAlON starting materials, a mixture of silicon nitride, aluminum nitride, optically active element compound, and at least one compound selected from aluminum oxide and silicon oxide, are sintered at temperatures ranging from 1820° C. to 2200° C. The method provides new β-SiAlON low in carbon content and having high luminescence intensity by placing a plurality of boron nitride vessels in a graphite box to allow the β-SiAlON starting materials packed in the plurality of boron nitride vessels to easily come in contact with nitrogen gas, and performing sintering in nitrogen atmosphere.
摘要:
Provided is a production method of a β-type sialon fluorescent substance, where luminescence intensity can be improved without adding a metal element other than elements composing a β-type sialon fluorescent substance. Namely, in a production method of a fluorescent substance containing an optically-active element as the luminescence center in a crystal of nitride or acid nitride, a β-type sialon fluorescent substance is produced by a burning process for heat-treating a mixture including metal compound powder and an optically-active element compound; a high-temperature annealing process for heat-treating the burned product after cooling under a nitrogen atmosphere; a rare-gas annealing process for heat-treating the high-temperature annealed product under a rare gas atmosphere; and a process for treating the rare-gas treated product with an acid.
摘要:
A solid-state device having: a flip-chip mounted solid-state element; a power receiving/feeding portion having a mounting substrate to allow that a mounting surface of the solid-state element forms substantially the same plane as a surface of the mounting substrate; and an inorganic sealing portion made of an inorganic sealing material having a thermal expansion coefficient equal to that of the power receiving/feeding portion for sealing the solid-state element.
摘要:
There is provided a position detection apparatus for detecting position of an image pickup device that outputs an output signal corresponding to intensity of detected light, having a light source for generating light, an illumination lens for illuminating the light generated by the light source onto the image pickup device, a position detecting section for detecting relative position of the image pickup device with respect to the illumination lens based on the output signal outputted out of the image pickup device corresponding to the light received via the illumination lens and a moving section for changing the relative position of the image pickup device to position set in advance by moving at least one of the image pickup device and the illumination lens based on the relative position detected by the position detecting section.
摘要:
A method of producing β-SiAlON includes a sintering process, in which β-SiAlON starting materials, a mixture of silicon nitride, aluminum nitride, optically active element compound, and at least one compound selected from aluminum oxide and silicon oxide, are sintered at temperatures ranging from 1820° C. to 2200° C. The method provides new β-SiAlON low in carbon content and having high luminescence intensity by placing a plurality of boron nitride vessels in a graphite box to allow the β-SiAlON starting materials packed in the plurality of boron nitride vessels to easily come in contact with nitrogen gas, and performing sintering in nitrogen atmosphere.