Abstract: A method for producing a thermoplastic resin sheet or a filler-containing thermoplastic resin sheet by which method a difficultly-workable thermoplastic resin as well as an ordinary thermoplastic resin can be formed into a sheet and various kinds of fillers can be compounded into the sheet. The method is characterized in that a thermoplastic resin or a composition of a thermoplastic resin and a filler is fed in powder or preformed sheet form between a pair of tensioned endless belts disposed parallel and travelling together around a set of rolls, the endless belts being heated by being brought into surface-to-surface contact with heating rolls while travelling along a path having at least one bend formed by the heating rolls, and the material is heated and compressed between the endless belts and melted into an integral body at or above the melting point or softening point of the thermoplastic resin.

Abstract: A method and an apparatus for continuously forming embossed sheets having good mechanical properties but no directional property. The apparatus has a pair of temperature-adjustable forming rolls, axial distance regulating devices to control the distance between the axes of the pair of forming rolls and a driving means for rotating the pair of forming rolls, each of the pair of forming rolls being provided with a plurality of ring-shaped blocks having a large number of projections on their circumferential surfaces; and the method comprises the steps of: introducing a sheet into a space between the pair of forming rolls, bringing the sheet into contact with the projections of the forming rolls, where the projections of the pair of forming rolls engage with one another without pressed contact, thereby making the sheet undergo plastic deformation and forming a large number of projections on both sides of the sheet.

Abstract: Provided is a process for preparing a diaryl or a mixture of diaryls represented by any or a combination of the following formulae (II), (III) and (V), characterized in that a diaryliodonium salt represented by the following formula (I) is reacted in a solvent in the presence of a transition metal catalyst and a reducing metal at a temperature in the range of room temperature to 100.degree. C.:[Ar.sub.1 -I.sup..sym. -Ar.sub.2 ]X.sup..crclbar. (I)Ar.sub.1 -Ar.sub.1 (II)Ar.sub.1 -Ar.sub.2 (III)Ar.sub.2 -Ar.sub.2 (IV)wherein Ar.sub.1 and Ar.sub.2, which may be alike or different, are each an aryl group which may have a substituent group or groups and X.sup..crclbar. is a counter ion which is inert to said reaction.

Abstract: Provided is a power cable coating composition comprising a copolymer of ethylene or ethylene and an .alpha.-olefin with 0.02-2 mol % of a cyclic non-conjugated diene, said copolymer being prepared by a high-pressure radical polymerization process, said copolymer having a melt index of 0.2-10 g/10 min and an iodine value in the range of 0.2 to 20, and not more than 2.5 parts by weight, based on 100 parts by weight of said copolymer, of a peroxide, said composition on heat-crosslinking affording a crosslinked product having at least the following properties:(a) a percent heat-deformation at 120.degree. C. not more than 20%, and(b) a maximum peak temperature (Tm) not lower than 100.degree. C. measured according to the differential scanning calorimetry (DSC).

Abstract: A novel method for producing laminated sheets or films consisting of a substrate layer or layers and a layer or layers of ultra-high molecular weight polyethylene. The method is characterized by the steps of: superposing at least one layer of ultra-high molecular weight polyethylene in powder or preformed sheet form and at least one layer of a substrate of another material upon one face of a tensioned endless belt travelling around a set of rolls, with an adhesive interposed between said layers if necessary; pressing or squeezing said ultra-high molecular weight polyethylene layer between said substrate layer and said endless belt, or between said substrate layers, against one or more heating rolls under the tension of said endless belt; heating at least said ultra-high molecular weight polyethylene layer to a temperature above its melting point; and thereby uniting said superposed ultra-high molecular weight polyethylene and substrate layers into a laminated sheet or film.

Abstract: An oil-filled capacitor which can be made small in size and has excellent electrical characteristics. The capacitor of the present invention is characterized in that it is made by impregnating a film-wound capacitor element with 1-phenyl-1-(benzylphenyl)ethane, at least a part of the dielectric material of said capacitor being made of a plastic film.

Abstract: Provided is an ethylene copolymer composition for rotational molding, comprising a copolymer of a predominant ethylene and 0.02 to 1 mole % of a non-conjugated diene represented by the following formula (I) or (II) or a derivative thereof: ##STR1## wherein R.sub.1 is an alkylene group having one or two carbon atoms and R.sub.2 is hydrogen or an alkyl group having one or two carbon atoms, and an organic peroxide, said copolymer having a melt index of 2 to 50 g/10 min, a density of 0.930 to 0.970 g/cm.sup.3 and a maximum peak temperature (Tm) measured according to Differential Scanning Calorimetry (DSC) of not lower than 100.degree. C.

Abstract: An electrical insulating oil which can be produced easily at low cost, scarcely contains undesirable components of tarry substance, unsaturated compounds and carbonyl compounds, does neither swell nor dissolve plastic materials, and has excellent electrical properties. The electrical insulating oil is characterized in that it comprises a fraction having boiling points in the range of 270.degree. to 350.degree. C. which is prepared by distilling the heavier products obtained from the process for producing ethyltoluene by alkylating toluene with ethylene in the presence of synthetic zeolite catalyst. Included also in the present invention are oil-filled electrical appliances that are produced by impregnating them with the above insulating oil.

Abstract: Provided is a process for converting an aromatic compound to prepare an iodoarene, Ar--I, and an aryl compound which is a compound wherein an unsaturated compound is bonded directly to an aryl group, Ar, which process comprises reacting a diaryliodonium salt represented by general formula (I)[Ar--I.sup..sym. --Ar]X.sup..crclbar. (I)wherein Ar is an aryl group which may be substituted and two Ar's are identical and X.sup..crclbar. is a counter ion inert to the reaction with the unsaturated compound in a solvent in the presence of a transition metal catalyst and a base or a reducing metal, said reaction being carried out at a temperature not higher than 80.degree. C. and/or by using at least one of the base, the reducing metal and the unsaturated compound in an amount not more than 1.

Abstract: A refined electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil is quite suitable for use in oil-filled electrical appliances in which insulating materials or dielectric materials made of plastics are employed. The electrical insulating oil is prepared by refining a mixture of unsaturated dimers of styrenes and alkylbiphenyls and/or alkylnaphthalenes, using a solid acidic substance.

Abstract: An improved electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil is quite suitable for use in oil-filled electrical appliances in which insulating materials or dielectric materials made of plastics are employed. The electrical insulating oil comprises (a) an electrical insulating oil except polyaromatic hydrocarbons and (b) an aromatic monoolefin and/or diolefin having two condensed or noncondensed aromatic nuclei.

Abstract: An paper sizing composition which is suitable for use in neutral to alkaline paper making processes, which produces excellent sizing effect and which is well dispersed in water. Both the sizing effect and dispersion stability of the prepared sizing medium are durable. The paper sizing composition comprises: 20 to 90% by weight of (A) a reaction product and/or its hydrogenation product which reaction product is obtained by adding maleic anhydride to branched internal olefins having 14 to 36 carbon atoms which are obtained by oligomerizing one or a mixture of olefin starting materials having 6 to 18 carbon atoms and 10 to 80% by weight of (B) another reaction product and/or its hydrogenation product which reaction product is obtained by reacting maleic anhydride with straight chain internal olefins having 14 to 36 carbon atoms.

Abstract: A novel electrical insulating oil and oil-filled electrical appliances that are impregnated with the novel insulating oil. The electrical insulating oil is quite suitable for use in oil-filled electrical appliances in which insulating materials or dielectric materials made of plastics are employed. The electrical insulating oil comprises (a) at least one member of alkylbiphenyls and alkylnaphthalenes and (b) at least one member of monoolefins and diolefins each having two condensed or noncondensed aromatic nuclei.

Abstract: An improved electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil is quite suitable for use in oil-filled electrical appliances in which insulating materials or dielectric materials made of plastics are employed. The electrical insulating oil comprises (a) at least one member of diarylalkanes and (b) at least one member selected from the group of mono- and/or diolefins having two condensed or noncondensed aromatic nuclei.

Abstract: In a method for purifying a crude epoxidation product of a liquid conjugated diolefin polymer or a vegetable oil which comprises the steps of adding an aqueous washing agent to a crude epoxidation product which is obtained by the reaction of a liquid conjugated diolefin polymer or a vegetable oil with an organic peracid or an epoxidizing agent capable of generating an organic peracid in situ, stirring the mixture, leaving the mixture to stand to induce phase separation and thereafter withdrawing the organic layer, the improvement wherein 50 to 300 parts by weight, per 100 parts by weight of the crude epoxidation product, of a 10-80% by weight aqueous solution of isopropanol is used as the washing agent.

Abstract: A recording material prepared by using a solvent mixture which has excellent dissolving property for dye-precursors and which gives high color developing rate and high developed color density. The recording material comprises a sheet material having thereon a layer of microcapsules containing an electron donating dye-precursor and a solvent mixture for said dye-precursor, and is characterized in that said solvent mixture consists essentially of 5 to 50 wt % of 1-methyl-3-phenylindane and 95 to 50 wt % of at least one kind of diarylalkanes.

Abstract: An electrical insulating oil and oil-filled electrical appliances, in which the insulating oil comprises a mixture of diarylalkanes and alkyl-3-arylindane derivatives and/or 1,3-diarylbutene derivatives, and has various advantageous properties such as a high dielectric constant, hydrogen gas absorbing capacity, and adaptability to plastic film materials. By impregnating with the above insulating oil, high performance and long life electrical appliances can be manufactured.

Abstract: A pressure-sensitive recording material which is excellent in several properties and prepared at a low cost. The pressure-sensitive recording material of the invention is applied with pressure-rupturable microcapsules containing a solution of dyestuff in a solvent fraction having a boiling range of 265.degree. C. to 360.degree. C. (converted to atm. press.) which is obtained by treating a raw material fraction in the presence of an acid catalyst. The raw material fraction is obtained from the product of thermal cracking of petroleum hydrocarbons at a temperature of 700.degree. C. or above and mainly contains the distillate having boiling points in the range of 75.degree. C. to 198.degree. C. and the main components thereof are monocyclic aromatic hydrocarbons (excluding aromatic olefins) and monocyclic aromatic olefins.

Abstract: Provided is a method of aralkylating alkylbenzenes by contacting styrene and alkylbenzene at an elevated temperature in the presence of a resinous perfluoro polymer.

Abstract: This invention provides a method of processing thermal cracked by-product oil which comprises reacting a distillate from a thermal cracked by-product oil principally containing components of a boiling range between 75.degree. C. and 198.degree. C. said distillate being one of the distillates from the cracking of petroleum hydrocarbons at a cracking temperature of 700.degree. C. or higher, and containing a ratio of 5-100 molar percent aromatic olefins to non-olefinic aromatic hydrocarbons, in liquid phase in the presence of an acid catalyst under such conditions that the reaction temperature is 0.degree. C.-200.degree. C., the liquid residence time is 0.1 hour-5 hours and wherein the content of aromatic olefins in the reaction system are 5% by weight or less at the end of the reaction, to yield a processed distillate containing non-condensed di- and tricyclic aromatic compounds which are reaction products of aromatic olefins with other aromatic hydrocarbons but no substantial amount of unsaturated components.