Abstract: There is provided a process for producing an alkenyl-substituted pyridine derivative using, a solid base catalyst which is obtained by heating a metal oxide selected from the group consisting of alumina, an alkaline earth metal oxide and a hydrotalcite withan alkali metal,an alkali compound and an alkali metal oran alkali compound and an alkali metal hydride under an inert gas atmosphere at a temperature within the range of 100-700.degree. C.

Abstract: 2,3-Dimethyl-2-butene is prepared by isomerizing 2,3-dimethyl-1-butene using at least one acid selected from the group consisting of sulfuric acid and sulfonic acids. By this process, 2,3-dimethyl-2-butene is effectively prepared from 2,3-dimethyl-1-butene using an inexpensive catalyst such as sulfonic acid or the sulfonic acids. Further, a dimerization reaction product of propene can also be used in the isomerization step without removing the dimerization catalyst from the reaction product.

Abstract: An engine for radio controlled models includes an internal combustion engine and a radio control receiver having a control unit for generating a fuel injection signal to control the supply of fuel to the internal combustion engine and a throttle adjusting signal to control an opening of a throttle value. The control unit provides a fuel injection signal based on fuel injection timing which is derived from a stroke signal and control unit provides a fuel injection timing signal to cause the fuel injector of the internal combustion engine to inject fuel into the combustion chamber of the engine.

Abstract: A rotational drive control device for a variable sp drive motor capable of accomplishing radio transmission of a signal for VSD (Variable Speed Drive) rotational drive control of a variable speed drive motor arranged in a rotational drive system of any equipment to be controlled in a factory or the like according to a radio communication system. The variable speed drive motor is arranged on a controlled side.

Abstract: A process is disclosed for producing an amine by carrying out a reductive amination of a cyclic ketone or by carrying out a reduction of an imino derivative of a cyclic ketone to the corresponding amine which process is characterized in using a cobalt catalyst containing a carbonate of an alkaline earth metal and/or lanthanum oxide.

Abstract: A spectrum spreading receiver including a super-regenerative demodulator which is capable of receiving a spectrum spread signal and which is resistant to noise and has a wide band, resulting in being simplified in structure and decreased in manufacturing cost. A signal of which a spectrum is spread by a PN code is received by a receiving antenna and then demodulated by the super-regenerative demodulator. Then the same PN code as the PN code having carried out the spectrum spreading is generated and the correlation between the signal and the PN code is made by a correlation unit, resulting in the decoding of the spread signal into the original base band signal.

Abstract: A radio control transmitter capable of carrying out transmitting and receiving of data on control characteristics of a stick, thereby to facilitate setting of the control characteristics. The transmitter includes a storage section for storing the control characteristics and a control section for controlling transmitting and receiving of data between the storage section and an external device connected to the transmitter.

Abstract: Amines are produced in high yield by the process which comprises allowing a cyclic ketone to react with ammonia in the presence of active carbon to produce imino derivatives and then, allowing the imino derivatives to react with hydrogen in the presence of a hydrogenating catalyst.

Abstract: This invention relates to a sheetlike wholly aromatic polyamide shaped article useful as electrical insulating materials excellent in corona resistance (corona durability) and in surface smoothness. The corona durability of said sheetlike shaped article is increased to 150 minutes or above by adding a nonionic polymer flocculant to an aqueous dispersion comprising 10 to 90% by weight of mica particles, preferably treated with a silane coupling agent and 90 to 10% by weight of a wholly aromatic polyamide stock (fibrids and fibers) in obtaining the sheetlike shaped article from the aqueous dispersion by wet shaping.

Abstract: A process for preparing a dimer of a lower .alpha.-olefin in the presence of Catalyst (A) containing a nickel compound, a trialkylaluminum, a halogenated phenol, a phosphorus compound and a sulfur compound, Catalyst (B) containing a nickel compound, a trialkylaluminum, a fluorinated isopropyl alcohol, a phosphorus compound, a sulfonic acid and water, or Catalyst (C) containing a nickel compound, a trialkylaluminum, a halogenated phenol, a phosphorus compound, a sulfonic acid and water, by which method, the dimer of the lower .alpha.-olefin is prepared in a high yield and high selectivity.

Abstract: Disclosed are an oxychlorination catalyst comprising a carrier material, and a palladium compound, a copper compound and a vanadium compound which are supported on the carrier material; an oxychlorination catalyst comprising a carrier material, and a palladium compound, a copper compound, a vanadium compound and an alkaline earth metal compound which are supported on the carrier material; processes for preparing these catalysts; and a method for oxychlorination of an olefin or an aromatic hydrocarbon using one of these catalysts.

Abstract: A process for the production of an integral composite molded item including(i) a surface portion having a synthetic resin phase containing a fibrous reinforcing material,(ii) a core portion having the synthetic resin phase containing bubble-containing particles, and(iii) a separation layer positioned between the surface portion and the core portion, the process including the steps of:providing in a substantially sealed mold (1) a separation layer which does not substantially pass therethrough bubble-containing particles but which is capable of passing a synthetic resin or its precursor that is liquidized at the time of molding; (2) a synthetic resin or its precursor on either or both sides of the separation layer; (3) a fibrous reinforcing material between the separation layer and the mold, and (4) an aggregate of bubble-containing particles on the side of the separation layer opposite to the mold;causing volume expansion of the aggregate;causing the resin to flow through the separation layer to thoroughly di

Abstract: A spectrum spread communication system capable of ensuring positive synchronization and improving error rate characteristics of data. At least one frequency is subject to hopping at an interval equal to one cycle of a DS signal during one cycle of frequency hopping and a cycle of changing-over of hopping is controlled depending upon an output signal of a correlation device, resulting in accomplishing synchronization.

Abstract: A correlation device for spectrum spread communication capable of being simplified in construction and carrying out high speed synchronism. The correlation device includes a code inversion device in place of a multiplier and a cumulative adder constituted by an adding section of two input terminals and a pluralty of latch circuits.

Abstract: A halogenated alkyl of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and each is a lower alkyl group, X is chlorine atom or a bromine atom and Y is a hydrogen atom or a halogen atom is prepared in high conversion and high selectivity by reacting a tertiary halogenated alkyl of the formula: ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and X are the same as defined above with an ethylene derivative of the formula:CH.sub.2 .dbd.CH--Y (III)wherein Y is the same as defined above in the presence of a liquid catalyst comprising aluminum chloride and an alkylbenzene of the formula: ##STR3## wherein R.sub.4, R.sub.5 and R.sub.6 are the same or different and each is a lower alkyl group or a hydrogen atom provided that at least one of them is a lower alkyl group.

Abstract: In a process for the production of 2,3-dimethylbutenes by the dehydrochlorination of 1-chloro-3,3-dimethylbutane in the presence of a catalyst, a conversion of the starting material and selectivity of the desired product can be improved when at least one compound selected from the group consisting of magnesium compounds, calcium compounds and lanthanum compounds is used as the catalyst.

Abstract: A receiver for spectrum spread communication capable of positively accomplishing synchronism between the receiver and a transmitter with simple construction. The receiver is constructed so as to carry out the synchronism of frequency hopping between the receiver and the transmitter my means of the output signal of a correlation unit.

Abstract: A radio control transmitter, and more particularly, a digital radio control transmitter uses analog digital conversion within the transmitter and provides improved display characteristics of the trim settings involved with respect to the various control sticks for providing radio remote control of the movement of model objects such as model airplanes, model helicopters, model cars or the like. An improved display shows the various trim characteristics and actual settings of the various control sticks during the operation.

Abstract: A remote control device capable of substantially eliminating affection of noise and radio interference and increasing a transmission rate to improve a response speed by alternately transmitting an absolute data and a difference data. When joysticks of a transmitter are operated depending on the desired amount of operation of a control drive unit, the transmitter alternately arranges an absolute signal and a difference signal corresponding to the operation and generates a modulated control signal, which is received by a radio receiver loaded on the control drive unit. The radio receiver demodulates the control signal into an absolute data signal and a difference data signal, which are then converted into a signal of only an absolute value by a converter. Then, a drive section drives and controls the movable controls of the control drive unit in response to the signal.

Abstract: Disclosed are a molded composite article having a curved surface which is composed of at least one laminate comprising continuous filaments unidirectionally paralleled and an extensible resinous film, and a process for producing the same. According to the present invention, the laminate comprising the continuous filaments and the film can be easily molded into the article with a curved surface without breakage or a reduction of strength, and the molded composite article is sufficient in strength, and excellent in smoothness of the surface and in appearance.