Abstract: Cathodically depositable electrodeposition paint binders comprising the reaction product of an epoxy resin with at least two epoxy groups with amines carrying primary amino groups and, optionally, with a carboxylic acid compound to provide an epoxy resin-amino adduct which is then reacted with a phenol and formaldehyde. The binders have excellent corrosion resistance and crosslink to provide coating films at relatively low stoving temperatures without splitting off of substances harmful to the environment.

Abstract: Cathodically depositable electrodeposition paint binders comprising a mixture of (A) 95-50% by weight of the reaction product of an epoxy resin with at least two epoxy groups with amines carrying primary amino groups and, optionally, with a carboxylic acid compound to provide an epoxy resin-amino adduct which is then reacted with a phenol and formaldehyde; and (B) 5-50% by weight of an addition component which is substantially water-insoluble under the conditions of electrodeposition and being compatible with Component A. The presence of Component B in the binder provides increased resistance to corrosion, improvements in the surface quality of the stoved films, and enhanced crosslinking of the binder.

Abstract: This high-pressure, high-temperature anhydrous process prepares melamine from urea. It is a primary object of the present invention to provide a highly energy-efficient and improved continuous process for the production of melamine from urea which utilizes a simplified process to produce and recover a high-grade (96 to 99.5% purity) melamine as a dry powder directly from liquid melamine melt. Molten urea is supplied to a reactor maintained at high temperature (700.degree. to 800.degree. F.) and high pressure (1700 to 2200 psig) whereby melamine, CO.sub.2, and NH.sub.3 are formed. The reactor effluent stream containing liquid melamine, CO.sub.2, and NH.sub.3 is transferred to a gas separator where CO.sub.2 and NH.sub.3 containing melamine are separated and cycled to a scrubber unit for scrubbing with molten urea reactant to remove the melamine before transfer of the CO.sub.2 and NH.sub.3 gases at high pressure to an adjacent urea plant for utilization in producing urea.

Abstract: A liquid electrophoretic developer composition suitable for rendering visible electrostatically charged areas, which composition contains in an electrically insulating non-polar carrier liquid having a volume resistivity of at least 10.sup.9 ohm.cm and a dielectric constant less than 3, dispersed coloring matter acting as toner particles and at least one polymer comprising cationic groups neutralized with counter anions, the said cationic groups being positively charged groups of metal ion containing coordination compounds.

Abstract: Cationic synthetic resin binders free of epoxy groups for the formulation of electrodeposition paints are described. The binders are the reaction product of an epoxy resin carrying at least two epoxy groups and having an epoxy equivalent of 190 to 1000, with from 0.1 to 1.0 amino groups per available epoxy group of a secondary amine carrying carboxylic acid amide groups. Upon being crosslinked on stoving with a suitable hardening component, the binders have improved water dilutability, permitting a reduction of the degree of neutralization necessary for electrodeposition application and improved intercoat adhesion to addition coats. These improved characteristics are significant with respect to an increase of current yield and in adhering additional coatings of a paint system.

Abstract: A dehumidifying system for use in a building housing a swimming pool. The system includes a refrigerant compressor, a dehumidifier coil for dehumidifying air within the building, an air cooled condenser for reheating the air previously cooled down in the dehumidifying coil as well as for heating the swimming pool enclosure and a water cooled condenser for heating the pool water. The heat developed in the system can be used to selectively heat the dehumidified air within the building and the water in the swimming pool. The water obtained during dehumidification of the air is collected and returned to the swimming pool.

Abstract: A suspension consisting of an elastic leaf (17) made of a composite material, having in its plane of vertical symmetry a height which increases towards the end or ends supporting the wheels. The leaf is fixed to the chassis (21) at two points (22) which are symmetrical relative to the longitudinal axis of the vehicle. The leaf may be mounted longitudinally or transversely.The leaf may consist of fibers extending longitudinally, without being cut, from one end to the other, embedded in an appropriate binder.

Abstract: Process for producing cationic epoxy resins carrying oxazolidine groups suitable as paint binders, and particularly paint binders for the formulation of cathodically depositable paints, wherein the epoxy resin is reacted with a hydroxy functional oxazolidine compound or with an oxazolidine compound carrying in the ring the structure ##STR1## in the presence of a monocarboxy compound. The presence of the monocarboxy compound permits the direct reaction or linkage of the epoxy resin with the oxazolidine compound without gelation; and, additionally, the monocarboxy compound favorably influences the film-forming characteristics of the binders.

Abstract: A hydraulic shock absorber comprising a cylinder containing a working oil; a piston received in a slidable manner in the cylinder and formed with a communication passage for generating a damping force, a piston rod protruding from one end of the cylinder; a valve chamber formed at the other end of the cylinder in fluid communication with the inside of the cylinder; an oil tank having an oil port for communication with the valve chamber; a disc-shaped valve arranged in the valve chamber and formed with a plurality of oil holes which have different effective areas and which can selectively be brought to face the oil port which communicates with the valve chamber and oil tank when the disc-shaped valve is turned. The disc-shaped valve is preferably mounted slidably but non-rotatably upon a valve stem. A coil spring is preferably provided to urge the disc-shaped valve against the valve chamber.

Abstract: An animal trap wherein the housing is formed of sheet metal and the trap door is of a mesh construction wherein the animal can in no way gain access to one carrying the trap or one disposed adjacent to the trap. At the same time, the animal may be identified through the open-mesh trap door. The trap door is normally disposed in a recessed position underlying the vertical wall; and, when released by a control mechanism actuated by a trap pan, the door will automatically fall by gravity to a trap-closing position. The door is then locked in this trap-closing position by means of a latch rod which has a roughened or threaded surface which interlocks with a clip. The housing, being formed of sheet metal and being substantially imperforate, may be utilized for the purpose of destroying the animal either by drowning or gassing.

Abstract: Curled non-woven material formed of waves such as contiguous anti-nodes (9,10) of adjacent waves consist of small adjacent pads (11,12) located on the same side of the median plan (8) of the non-woven material.Use: Medical and surgical compressesFIG. 3.

Abstract: Hardener components which crosslink through transesterification comprising (A) a KNOEVENAGEL reaction product of a carbonyl compound and a compound such as the diester of malonic acid reacted in a MICHAEL-addition reaction with (B) a substituted oxazolidine carrying a secondary amino group, and where the reaction product of (A) and (B) is thereafter reacted through the methylene groups with (C) a polyisocyanate is described. The hardener components are particularly suitable for use in water-dilutable cationic paint binders.

Abstract: A sighting device for a bow which is fixedly mounted on a bow and which is provided with a lever and link arrangements such that a sight unit thereof is tilted at a progressively increasing rate as the sighting device is adjusted for longer distances so as to compensate for gravity effect on arrows. Also, the sight unit is so mounted whereby it tilts relative to the bow in a manner wherein the sight unit generally lies in a plane which is normal to the sighting axis therethrough for all adjustments of the sighting device.

Abstract: Cationic resins suitable as binders for stoving coating compositions, particularly for application by electro-deposition, and as mill base resins for grinding pigments and extenders; and a process for producing same is described. The resins are produced through reaction of a resinous compound carrying hydroxyl groups with a monoisocyanate which is totally or partially the reaction product of a diisocyanate and a tertiary amine which carries the ring structure ##STR1## wherein R and R.sub.x are a hydrogen atom or an alkyl radical or an aryl radical which may be substituted and wherein n is 2 or 3, the quantity of basic component being chosen in order that the cationic resin has an amine value of at least 35, and preferably of from 40 to 140 mg KOH/g.

Abstract: Photographic silver halide material containing a ballasted electron-donor precursor compound yielding by alkaline hydrolysis an electron-donor compound (ED-compound) capable (1) of donating electrons to an oxidized electron-accepting silver halide developing agent e.g. for scavenging it, said electron-donor precursor compound corresponding to the following general formula: ##STR1## wherein: R represents hydrogen or a substituent, e.g. an acyl group, which on hydrolytic removal allows the replacement of R by H,R.sup.1, R.sup.2 and R.sup.3 (same or different) are hydrocarbon substituents or R.sup.3 is H, andZ and Y represent the necessary atoms to close a benzene ring that may be substituted or form a fused ring system.

Abstract: A liquid developer composition for rendering visible electrostatically charged areas. The composition contains in an electrically insulating non-polar carrier liquid having a volume resistivity of at least 10.sup.9 ohm.cm and a dielectric constant less than 3, dispersed coloring matter acting as toner particles and at least one onium salt polymer including recurring units incorporating an onium group together with an anion.

Abstract: Method for drying damp material by vapor recompression. The vapor (8) released by the damp material (4) circulating on the heating elements (2) of a vertical dryer is recompressed by means of a motor-compressor (9) so as to provide the heat-conveying fluid to the heating elements (2) of the dryer. Application to the drying of damp vegetables.

Abstract: A process for producing improved crosslinking components for paint binders which can be crosslinked through transesterification is described. The process is characterized in that an ester of malonic or cyano-acetic acid or aceto-acetic acid is reacted in a KNOEVENAGEL-reaction with a carbonyl compound, preferably with formaldehyde, and the reaction products are polymerized, optionally utilizing free-radical initiators, to provide a polymer having a molecular weight of between about 300 and 6000. The crosslinking components prepared according to the invention provide an unsaponifiable base structure and permit the preparation of products with high functionality. The crosslinking components are preferably utilized in binder systems for cathodically depositable paints.

Abstract: A bar screen/conveyor system for collecting debris or the like in a stream of liquid, including collector rakes for attachment to the conveyor which are made of a tough, abrasion-resistant and corrosion-resistant elastomer is described. The preferred elastomers for use in rake fabrication are polyurethane elastomers. The conveyor systems which include the elastomeric rakes have greater durability and use life without problems than the heretofore conveyor systems utilizing metal rakes.

Abstract: Mold and core rod combination for forming a plastic parison for stretch/blowing into a plastic bottle comprising a core rod with an end mated to the mold so as to permit formation of a parison with a flat on the bottom and having a sharp taper from said flat to the sidewall of the parison. The core rod is preferably shaped to include a shoulder having a substantially straight outer wall at the mouth end of the parison mold, and constructed and arranged with the mold to permit deposit of additional plastic at the inner wall of the shoulder of the parison. The design of the mated mold and core rod combination is based on the recognition that in a continuous bottle forming process a particular area of the parison can be made hotter or cooler by increasing or decreasing the thickness of that area of the parison.