Abstract: A volume reducing agent for processing polystyrene, containing 65-97 wt % of a first plasticizer having a solubility parameter less than the solubility parameter of the polystyrene; and 3-35 wt % of a second plasticizer having a solubility parameter higher than the solubility parameter of the polystyrene. The volume reducing agent is in liquid state, has a Ferdor solubility parameter close to that of polystyrene to be processed in the mixed state and transfers the resulting materials having reduced volume into gel-type products to be floated and easily separated.

Abstract: A volume reducing agent for processing expanded polystyrene (EPS), containing 65-97 wt % of a first plasticizer having a solubility parameter less than the solubility parameter of the polystyrene; and 3-35 wt % of a second plasticizer having a solubility parameter higher than the solubility parameter of the polystyrene. The volume reducing agent is in a liquid state, has a Ferdor solubility parameter close to that of the polystyrene to be processed in the mixed state and transfers the resulting materials having reduced volume into gel-type products to be floated and easily separated to yield a high quality output of recycled expanded polystyrene (FPS).

Abstract: A ceramics-metal joined body which excels in high temperature characteristics and joint strength is formed by metallizing the surface of ceramics such as oxides, carbides, borides, nitrides, and composites thereof, and joining a metallic member through a solder to the metallized surface.

Abstract: This invention relates to an electrical contact material of silver-indium oxide type, which is produced by the internal oxidation of an alloy consisting of 6-15% by weight indium, at least one of 0.2-8% by weight tin and 0.01-1% by weight magnesium and the balance silver. This alloy may contain further 0.01-1% by weight of nickel.

Abstract: A material for an electrical contact is produced by an internal oxidation of an alloy consisting of 1-15% by weight of indium, 0.5-12% by weight of tin, 0.01-5% by weight of one selected from manganese and molybdenum, and the balance silver. In a modification an iron group element may be mixed in a range less than 0.5% by weight.

Abstract: This invention relates to a valve seat material for an internal combustion engine, which comprises a sintered ferrous alloy having the composition:______________________________________ chromium 5-15 percent by weight cobalt 5-20 nickel 2-8 tungsten 2-10 molybdenum 0.2-12 carbon 0.2-2 the remainder being iron except for usual impuri- -ties and trace elements, ______________________________________And having a porosity of 5-25%. This alloy can also contain lead and a low melting point glass capable of showing a lubricating property at a low temperature.