Abstract:
An input interface circuit which can be used whether the power supply potential is 5 volts or 3 volts. The input interface circuit includes a comparator, a detector and a controller. The comparator compares a potential level of a signal input from a signal input terminal with a predetermined threshold value, and outputs the comparison result from a signal output terminal. The detector detects whether the power supply potential to be supplied to the comparator is 5 volts or 3 volts. The controller changes the threshold value of the comparator when the detection result of the detector is 3 volts, but does not when the detection result is 5 volts. Therefore, the input interface circuit can be operated with an optimum threshold value, whether the power supply potential is 5 volts or 3 volts.
Abstract:
A water soluble or alcohol soluble printing ink composition comprising:(A) 10 to 50% by weight of a resin, said resin being prepared by radical - polymerizing a mixture of (a) an unsaturated aromatic hydrocarbon, (b) a monoacrylate or monomethacrylate of a polyhydric alcohol and (c) an A,B- unsaturated carboxylic acid in the presence of an organic solvent, said resin having an acid value of 5 to 150 and a hydroxyl value of 30 to 120;(B) 30 to 80% by weight of a solvent(C) 1 to 40% by weight of a pigment or dye.
Abstract:
A process for preparing a resin suitable for preparation of sizes, which comprises polymerizing a cracked oil fraction which is obtained by the thermal cracking of petroleums, has a boiling point of 20.degree. to 220.degree.C., and contains diolefins, thereby to form a hydrocarbon resin, reacting the resulting hydrocarbon resin with an unsaturated dicarboxylic acid or its anhydride, and heating the acid-modified resin in the presence of water or an alkali metal hydroxide at a temperature of 130.degree. to 350.degree.C.
Abstract:
A boost voltage circuit includes a plurality of N channel type MOS transistors connected between an input terminal and an output terminal in series, wherein one electrode of each of the N channel type MOS transistors is connected to each of external terminals to which a capacitor can be connected to generate a boost voltage. A plurality of P channel type MOS transistors are respectively connected to each of the N channel type MOS transistors in parallel. Thereby, a boost voltage circuit with improved stability is provided so that the boost voltage circuit is started without increase of consumption current.
Abstract:
A boost voltage circuit includes a plurality of N channel type MOS transistors connected between an input terminal and an output terminal in series, wherein one electrode of each of the N channel type MOS transistors is connected to each of external terminals to which a capacitor can be connected, to generate a boost voltage. A plurality of P channel type MOS transistors are respectively connected to each of the N channel type MOS transistors in parallel. Thereby, a boost voltage circuit with improved stability is provided so that the boost voltage circuit is started without increase of consumption current.
Abstract:
A polyphenylene ether resin composition comprising as the major components:(a) 100 parts by weight of polyphenylene ether resin, and(b) 1-30 parts by weight of hydrocarbon resin which has a softening point of 140.degree.-180.degree. C. and a ratio of weight-average molecular weight to number-average molecular weight M.sub.w /M.sub.n of 2.0 or less, and is prepared by polymerizing a raw material oil of hydrocarbon in which a total content of indene and methylidene is 80% by weight or more by the use of a Friedel-Crafts type catalyst.
Abstract:
Hot melt type traffic paint compositions contain as binders partially ring-hydrogenated resins derived by hydrogenating from 20 to 70% of the aromatic rings of an aromatic hydrocarbon resin obtainable by polymerization in the presence of a Friedel-Crafts catalyst of fractions prepared so as to have a conjugated diolefin content of not more than 1.0 wt % and in a ratio of not more than 3.0% with respect to the total amount of polymerizable ingredients and a total content of indene and its alkyl derivatives of not more than 4.0 wt % and in a ratio of not more than 12.0% with respect to the total amount of polymerizable ingredients, said fractions obtained by distillation of cracked oil fractions which have boiling points in the range from 140.degree. to 220.degree. C. and are prepared by cracking of petroleum. These traffic paint compositions provide a favorable antiweathering property, heat resistance and flow characteristics.
Abstract:
A composite resinous composition is provided, which essentially comprises an aromatic hydrocarbon resin and an epoxy resin. The aromatic resin has its source from petroleum fractions produced during the thermal cracking of naphtha, kerosene or gas oil. Such fractions boiling in the range of 140.degree.-280.degree. C. are polymerized with a relatively large amount of phenols, the resulting polymer being highly compatible with commercially available epoxy resins.
Abstract:
A method for transferring ink on a plate onto a material to be printed by a printing method involves the steps of: providing the ink at predetermined positions on the plate, the ink being sensitive to a field to increase its viscosity so as to have a solidified state or a semi-solidified state; applying the field to the ink to maintain configuration of the ink provided at the predetermined positions on the plate; and transferring the ink onto the material to be printed while maintaining the ink in the solidified or semi-solidified state.
Abstract:
Compositions of high lubrication and light coloration are disclosed in which a selected class of resins and rubbers is blended with a specified cured polybutadiene product. The cured product results from crosslinking more than 10% of vinyl bonds in a butadiene polymer having a vinyl bond content of not less 20% by mol in terms of its monomer unit. Also disclosed are solid lubricants comprising a specified fluorinated cured polybutadiene and compositions containing the solid lubricant.