Abstract: An evaluation method of a flow analysis on molding of a molten material is achieved in a system of performing a flow analysis on an in-mold molten material through breakdown of a molded part model into minute elements and numerical analysis thereof including the calculi of finite elements, boundary elements, finite differences, FAN and the like. One or more temperature conditions of the molten material are provided with a plurality of loading times respectively for conducting an analysis and from the obtained operational results of the temperature distribution of the molten material after loading, an average temperature or a medium layer temperature of each element is calculated as a function Tn=fn(t) having a variable of the loading time. This function is graphically indicated on a display apparatus to determine the ranges of the molten material temperature and the loading time at a predetermined mold temperature.

Abstract: A molten injection-molding method is applicable to any system of dividing a molded product form model into micro-elements and analyzing a molten material flow behavior within the mold by the use of numerical analytic techniques that include the finite element method, boundary element method, difference method, and FAN method, among others. First, the entire length of time required for the process of filling the mold with a molten material is divided into an arbitrary number of intervals, representing the filling progress in each individual time interval in an equitime curve diagram.

Abstract: A molten injection-molding method is applicable to any system of dividing a molded product form model into micro-elements and analyzing a molten material flow behavior within the mold by the use of numerical analytic techniques that include the finite element method, boundary element method, difference method, and FAN method, among others. First, the entire length of time required for the process of filling the mold with a molten material is divided into an arbitrary number of intervals, representing the filling progress in each individual time interval in an equitime curve diagram.

Abstract: In a method of controlling an injection compression molding of the type wherein resin is injected into a mold cavity while the metal molds are separated away a little, and thereafter the metal molds are clamped together, a pulsating mold clamping pressure is applied to the metal molds during compression. The apparatus for controlling injection compression molding comprises a mold clamping pressure setter for outputting a mold clamping signal, a pulse waveform setter for generating a pulse signal, a signal calculating unit connected to receive the mold clamping signal and the pulse signal for outputting a mold clamping control signal, a mold clamping device, and a valve responsive to the mold clamping control signal for controlling a pressurized operating fluid supplied to the mold clamping device.

Abstract: A mold clamping pressure control method for injection compression molding through adjustment of the oil pressure in the mold clamping cylinder by the mold clamping cylinder control valve, wherein a resin temperature in the mold is detected by a resin temperature sensor, and detected values thereof are converted by a converter into electric signals, which are in turn compared with a series of the preset pressure changeover temperature setting values to output pressure changeover signals whenever the detected values correspond to the preset values. The pressure changeover signal selects any of a series of the preset pressure setting values to output the valve opening-shutting directing signals converted into a certain valve opening-shutting amount, thereby to control the opening-shutting amounts of the mold clamping pressure control valve.

Abstract: In an input display apparatus including a display member adapted to display a plurality of set items, and a transparent panel including key elements and superposed on the display member, there are provided a profile controlled graphic display picture wherein such operating conditions as a speed, pressure and number of revolutions of a screw during one operation step of an injection molding machine are displayed in multi-stages in accordance with an operating position of the screw, and level changing means for changing the levels of the profile display picture in accordance with the magnitude of a changed value when an operating condition of the injection molding machine is changed. According to a modification, the display surface of the display member is divided into upper and lower sections. The upper section is provided with the function of an increment key and the lower section is provided with the function of a decrement key.

Abstract: In a display apparatus comprising a display member in the form of a cathode ray tube adapted to display a plurality of set items and a transparent touch panel superposed on the display member and formed with a plurality of touch key elements, there are provided at least one increment key and at least one decrement key located near a plurality of juxtaposed input data display members.

Abstract: A method and apparatus controlling an injection molding machine having a compression process. The velocity is controlled using a closed loop single or multi-step programmed velocity control method or a closed loop multi-step programmed slope velocity control method. Pressure may be controlled using a multi-step programmed pressure control method in which a pressure signal is detected from a detector set in the mold die or set in the clamping cylinder. The method of the present invention improves the accuracy and density of articles molded.

Abstract: In a method of controlling an injection molding machine wherein a pressure holding step is controlled in multiple steps, the transfer points of respective holding pressures are transferred in accordance with the temperature of injected resin or a metal mold detected by a temperature sensor provided for the metal mold.

Abstract: A monoallylamine-diallylamine derivative copolymer with a high degree of polymerization can be obtained in a high yield by using a radical initiator containing an azo group and a group having cationic nitrogen atom in the molecule.

Abstract: In a computer-controlled fuel supply system of an internal combustion engine, two basic pieces of information, i.e. airflow data Q and engine speed data N, are processed by an analog operating circuit to produce a basic injection pulse signal, whose pulse width equals Q/N. The data Q/N is used by a microcomputer, when the microcomputer is in normal state, to produce a corrected injection pulse signal by using various engine parameters in the same manner as in conventional arrangements, and fuel flow is determined by the width of the corrected injection pulse signal. When malfunctioning of the microcomputer is detected, the basic injection pulse signal from the analog operating circuit is used in place of the corrected injection pulse signal from the microcomputer to determine the fuel flow. The width of the basic injection pulse signal may be lengthened when the microcomputer is in abnormal state so that air/fuel ratio is almost accurately controlled without the microcomputer.

Abstract: High molecular weight polymers are produced in a high yield by polymerizing inorganic acid salts of monoallylamine or N-substituted monoallylamines in a polar solvent in the presence of a specific azo type radical initiator.

Abstract: Drainage of pulp slurry can be markedly improved without impairing the uniformity of paper quality by adding to the pulp slurry a poly-monoallylamine resin represented by the formula: ##STR1## wherein X is Cl, Br, I, HSO.sub.4, HSO.sub.3, H.sub.2 PO.sub.4, H.sub.2 PO.sub.3, HCOO, CH.sub.3 COO or C.sub.2 H.sub.5 COO, n is a number of 10 to 100,000, and m is 0 or 1, or a modified resin of the poly-monoallylamine resin.

Abstract: A process for producing a novel photosensitive resin having cinnamic groups, comprising reacting a polyallylamine represented by the general formula (I) ##STR1## (wherein n is at least 10) or an inorganic acid salt thereof with a compound having a cinnamic group in the presence of a solvent. The process is free from drawbacks as experienced in the production of a conventional photosensitive resin (e.g. polyvinyl cinnamate), such as formation of by-products during the polymerization of a monomer (e.g. vinyl cinnamate).

Abstract: A new functionalized resin represented by the general formula was derived from polyallylamine. ##STR1## [wherein; X represents the general formula ##STR2## (t is 0 or 1, l is an integer of 1 to 20), n.gtoreq.10, 0<j<1, u=1 or 2, and m=1 or 2, with the proviso that t and m are not simultaneously 0].The functionalized resin is preferably used for recovering heavy metals in waste water and for optically dissolving amino acids.

Abstract: Poly(allylamine salts) of high polymerization degree is obtained in high yield by the polymerization of monoallylamine salt with a specified radical-polymerization initiator having in the molecule an azo group. Various poly(allylamine) derivatives are obtained by reacting said poly(allylamine salt) with acrylic compounds, or formic acid and formaldehyde.

Abstract: The present invention relates to a method for improving the color fastness of a dyed product which comprises treating a dyed product which has been dyed with a reactive dye with a copolymer of an N-substituted secondary allylamine derivative represented by the following general formula:CH.sub.2 .dbd.CH--CH.sub.2 --HN--R.HXwherein R represents a hydrocarbon group or a substituted hydrocarbon group and HX represents an inorganic or organic acid, and allylamine, diallylamine or dimethyldiallylammonium chloride.The dyed product treated according to the method of the present invention satisfies the following requirements on performances: (1) a sufficient maintenance to fastness to chlorine, (2) a satisfactory resistance to acid hydrolysis, (3) freeness from the color change due to the treatment, (4) freeness from the decrease in fastness to light and (5) high fastnesses to water and washing.

Abstract: A novel isonitrile group-containing polymer free of the problem of bad odor inherent in isonitrile compounds is obtained by making use of carbylamine reaction which is now abandoned as means for the synthesis of low-molecular isonitrile compounds.

Abstract: In a fuel control system for an internal combustion engine, high and low voltages are applied in succession to an oxygen sensor, the difference between currents generated successively by the sensor in response to the application of the voltages being detected and compared with a predetermined value. The ratio of air-fuel mixture is controlled as a function of the current generated by the sensor in response to the application of one of the high and low voltages when the difference is smaller than the predetermined value and controlled in an open loop mode when the difference is larger than the predetermined value.

Abstract: N-substituted secondary monoallylamine salts can be easily polymerized in a polar solvent by using as catalyst a water-soluble radical initiator containing azo group in the molecule, and polymers with a high degree of polymerization can be obtained therefrom in a high yield.