Abstract: One of the objects of the present invention is to offer novolak type phenolic resins which use phenols and aldehydes as raw materials and give narrow molecular weight distributions.The novolak type phenolic resins of the present invention are those obtained by condensation reaction of phenols with aldehydes in the presence of an oxycarboxylic acid having carboxyl groups, --COOH, and alcoholic hydroxyl groups, --OH, in one molecule. Thus obtained novolak type phenolic resins show narrow molecular weight distributions, lower viscosity in molten state and, as a consequence, uniformity in curing time.

Abstract: One of the objects of the present invention is to offer novolak type phenolic resins which use phenols and aldehydes as raw materials and give narrow molecular weight distributions.The novolak type phenolic resins of the present invention are those obtained by condensation reaction of phenols with aldehydes in the presence of an oxycarboxylic acid having carboxyl groups, --COOH, and alcoholic hydroxyl groups, --OH, in one molecule. Thus, obtained novolak type phenolic resins show narrow molecular weight distributions, lower viscosity in molten state and, as a consequence, uniformity in curing time.

Abstract: A veneer-pressing apparatus comprising a pressing device provided with at least three pressing bodies disposed movably from a non-pressing position where the pressing bodies are vertically spaced apart from each other to a pressing position where the pressing bodies are close to each other; endless belts each adapted to be intermittently moved in a direction opposite to that of the neighboring endless belt, thereby forming a forward transfer passage between a pair of facing surfaces of the neighboring endless belts and a backward transfer passage which is opposite in transferring direction to the forward transfer passage; and a pressing member which is capable of rendering the pressing bodies provided with the endless belt to move from a non-pressing position to a pressing position to press a veneer with a predetermined pressure.

Abstract: Servo information is written on a magnetic disk at intervals equivalent to 1/N of where the period at the position of a head is controlled. When the frequency characteristic of a servo loop is measured, a servo controller generates a position signal, which indicates deviation of the head from a reference position, using servo information at a first sampling point, calculates an actuator drive current command value, which drives an actuator, on the basis of the position signal, and controls the actuator based upon the current command value. Further, the servo controller executes processing for generating the position signal, but does not calculate the actuator drive current command value, on the basis of servo information at second through Nth sampling points.

Abstract: One of the objects of the present invention is to offer novolak type phenolic resins which use phenols and aldehydes as raw materials and give narrow molecular weight distributions.The novolak type phenolic resins of the present invention are those obtained by condensation reaction of phenols with aldehydes in the presence of an oxycarboxylic acid having carboxyl groups, --COOH, and alcoholic hydroxyl groups, --OH, in one molecule. Thus obtained novolak type phenolic resins show narrow molecular weight distributions, lower viscosity in molten state and, as a consequence, uniformity in curing time.

Abstract: A veneer drying apparatus comprises a pair of upper and lower hot plates connected to a heating unit and a plurality of steam escape grooves formed in the opposing press surfaces of the upper and lower hot plates. The apparatus further comprises intermittently driven endless belts and driving and driven rollers on the unloading and loading ends, respectively, of the lower hot plate. The endless belts are trained over the driving and driven rollers for transferring veneer P over the upper surface of the lower hot plate. Each endless belt has numerous apertures formed in the entire surface thereof in a regular pattern. The driving rollers have numerous protrusions formed on the periphery thereof for engaging in the apertures formed in the endless belts. The endless belts are smoothly driven by rotation of the driving rollers due to the protrusion-aperture engagement.

Abstract: An apparatus for collecting a cathode-ray tube (2) from a waste cathode-ray tube device (1) and recycling the cathode-ray tube (2) includes a conveyor (15) having a moving pallet (21) for detachably holding a panel portion (10) of the cathode-ray tube (2) by vacuum adsorption portions (63a) through (63d) and sequentially conveying the panel portion (10) to a predetermined position, a device for leaving only the cathode-ray tube (2) by scrapping the waste cathode-ray tube device (1) held on the moving pallet (21) and separating and removing a device housing (4) from the waste cathode-ray tube device (1), and a conveyor for conveying the separated device housing (4). According to an apparatus for and method of collecting a used cathode-ray tube, a cathode-ray tube can be collected from a waste cathode-ray tube device easily and inexpensively, and natural resources can be recycled.

Abstract: An image forming apparatus for a multiplex copying system in which indefinite peripherals having various additional functions may be connected to the body of the apparatus. The version of the apparatus body is adjusted surely and adequately in matching relation to the versions of the peripherals. The apparatus body is, therefore, capable of cooperating with the peripherals newly connected thereto.

Abstract: An apparatus for regulating a leading end stacked position in a stacker for successively stacking thin sheet materials.

Abstract: A belt conveyor is provided to feed veneers in the arrow-marked direction in the drawing. A porous transfer belt having numerous of air holes therein is stretched around so as to run above said belt conveyor. Inside the porous transfer belt, a suction hood which has a plurality of small air passages formed in the running direction of the porous conveyor belt is installed to rotatably accommodate a damper further therewithin. The damper makes intermittent rotations to open or close the sucking section such that only a desired veneer is selectively sucked for sort-out transfer with the result that the need for piercing the veneer or defining in advance a gap between each adjacent two veneers is eliminated. Therefore, it is now possible to perform high speed sort-out operations without subjecting the veneer to damage or breakage resulting from tensile strength exerted thereon at the time of defining the gap.

Abstract: A photopolymerizable composition comprising: (a) a compound obtained by reacting one mole of a polyamine represented by the following general formula (I) with at least 2 moles of a compound having a group capable of reacting with the polyamine and a polymerizable ethylenically unsaturated group: ##STR1## wherein n is an integer of not less than 1 and (b) a photopolymerization initiator.A dry PS plate comprises a substrate provided thereon with, in order, a light-sensitive resin layer and a silicone rubber layer wherein the light-sensitive resin layer comprises the photopolymerizable composition and a polymeric compound having film-forming ability.The photopolymerizable composition and the dry PS plate have very high sensitivity.

Abstract: A water-less PS plate for use in making a water-less lithographic printing plate comprises, on a substrate, a photopolymerizable light-sensitive layer and a silicone rubber layer in this order, wherein the light-sensitive layer is formed from a photopolymerizable light-sensitive composition which contains an urea bond-containing polyurethane as a binder. According to the present invention, there is obtained a water-less PS plate having good resistance to scratch and high printing durability. Moreover, the resulting light-sensitive layer does not get sticky, the light-sensitive layer of the non-image portions is not peeled off during the printing operations, and the lithographic plate shows good dyeability and plate-examination property.

Abstract: A light-sensitive composition is herein disclosed, which comprises at least one free radical generator represented by the following general formula: ##STR1## and at least one discoloring agent which interacts with products generated through the photolytic degradation of the free radical generator to change the color tone of the composition. The composition has a high stability with time and a good printing out property and therefore it can be used in making light-sensitive layer of PS plates, photoresists, proof plates for printing and films for overhead projector, intermediate print and photomask having high sensitivity long shelf life.

Abstract: Carbon fibers with a large specific surface area are obtained by a process which comprises the steps of:(a) providing cured novolak resin fibers;(b) impregnating the novolak resin fibers with a polymerizable vinyl monomer;(c) polymerizing the vinyl monomer; and(d) carbonizing the novolak resin fibers containing the polymerized vinyl monomer.

Abstract: A dry PS plate comprises a substrate provided thereon with in order a primer layer, a light-sensitive layer and a silicone rubber layer wherein the primer layer comprises at least one compound selected from the group consisting of those having urethane or/and urea bonds and is adhered to the substrate with a functional group containing silane coupling agent represented by the following general formula: ##STR1## wherein n is an integer ranging from 1 to 3; X represents an alkyl group, a vinyl group or an organic group having a functional group showing affinity to or capable of being bonded to the compound included in the primer layer; R represents a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; and Y represents an organic group which generates a hydroxyl group through hydrolysis or a hydroxyl group.

Abstract: A presensitized plate, for use in making a lithographic printing plate requiring no dampening water, comprises a substrate, a light-sensitive resin layer applied thereon and a silicone rubber layer formed on the light-sensitive layer which is cross-linked through a reaction of SiH groups with --CH.dbd.CH-- groups, the light-sensitive resin layer comprising:(1) a monomer or an oligomer having at least one photopolymerizable (meth)acryloyl group and at least one allyl group;(2) a photopolymerization initiator; and optionally(3) a polymeric compound having film-forming ability; and(4) a monomer or an oligomer having at least one photopolymerizable (meth)acryloyl groups and free of allyl groups.According to the presensitized plate, the adhesion between the addition type silicone rubber layer and the light-sensitive resin layer is greatly improved and excellent image-forming properties of the presensitized plate are thus ensured.

Abstract: A process for the production of porous phenolic resin fibers is disclosed, which process comprises graft-polymerizing to phenolic resin fibers a vinyl group-containing monomer capable of forming a thermally decomposable polymer, and thereafter subjecting the fibers to a heat treatment at a temperature high enough to cause thermal decomposition of the graft polymer. The product thus obtained is excellent in heat-resistance and adiabatic property in addition to useful properties inherent to phenolic resin fibers.

Abstract: A light-sensitive composition is herein disclosed, which comprises at least one light-sensitive s-triazine compound represented by the following general formula (I) and at least one compound having at least one ethylenically unsaturated double bond and capable of causing addition polymerization: ##STR1## wherein R.sub.1 and R.sub.2 independently represent hdyrogen atom, a substituted or unsubstituted alkyl or aryl group, or a group represented by the general formula: R.sub.5 --CO-- or N(R.sub.6) (R.sub.7)--CO-- (wherein R.sub.5 stands for a substituted or unsubstituted alkyl or aryl group; and R.sub.6 and R.sub.7 independently represent hydrogen atom or a substituted or unsubstituted alkyl or aryl group), provided that R.sub.1 and R.sub.2 may form a heterocyclic ring consisting of non-metallic atoms together with the nitrogen atom to which they are bonded; R.sub.3 and R.sub.4 represent hydrogen, a halogen, an alkyl or an alkoxyl; X and Y independently represent chlorine or bromine; and m and n are 0, 1 or 2.

Abstract: A heating plate is disclosed which is adapted for use in a dryer for drying a sheet of wood veneer by heating said plate at a desired level and placing one surface of the plate on either side thereof in engagement with the veneer sheet. The heating plate, when heated and placed in non-engagement state, is formed such that said one surface is convex shaped.

Abstract: A light-sensitive composition containing a polymerizable compound having at least one ethylenically unsaturated group, and a photopolymerization initiator of general formula (I): ##STR1## wherein Y represents --COOR.sub.1, ##STR2## --R.sub.3 --COOR.sub.1, --R.sub.3 --CONHR.sub.1 or --NHCO--R.sub.4 (wherein R.sub.1 represents a hydrogen atom, an alkyl group, or an aryl group; R.sub.2 represents a hydrogen atom or a methyl group; R.sub.3 represents an alkylene group; R.sub.4 represents an alkyl group, an alkoxy group, an aryl group; and l and m respectively represents integers of 1 to 10.); Ar represents a phenylene, naphthylene or heterocyclic aromatic group; X represents a chlorine atom or a bromine atom; and n represents 1 or 2.The light-sensitive composition has a good stability over time since crystallization of the photopolymerization initiator on the surface of the light-sensitive layer is inhibited.