Abstract: The improvement in the production of low sheet gloss coated papers which comprises using as the synthetic polymer latex binder for the aqueous coating composition employed to coat the papers, a carboxylated latex which substantially swells during the preparation of the aqueous coating composition and subsequently shrinks during the drying of the coated paper, whereby a microscopic surface roughness is obtained to yield a low sheet gloss coated paper while retaining high ink gloss.

Abstract: Colored polyester film laminates, well adopted as leaders for cassette recording tapes, are facilely produced by (a) coating one face surface of a first length of polyester film with a layer of colorant and adhesive, (b) heating said coated first length of polyester film to a laminating temperature, (c) heating a second length of polyester film to essentially the same laminating temperature as that of said first length of polyester film, (d) hot calendering and coextensively laminating together said first and second lengths of polyester films to produce a polyester film laminate which comprises a colorant/adhesive interlayer, and then (e) cooling and rolling said product laminate.

Abstract: Aluminum coated ferritic base metal foil formed by cold reduction of hot dip aluminum coated ferritic steel strip containing from 10% to about 35% chromium, up to 3% aluminum, and up to 1% silicon, the foil having a ratio of aluminum coating thickness on both sides to base metal foil thickness of at least 1:10, with at least 4% by weight total aluminum. The method of production includes heating the foil in an oxidizing atmosphere within specified temperature and time limitations to provide a porous surface having a thin layer of aluminum oxide. The foil is adapted for fabrication into monolithic support structures for catalytic converters for internal combustion engine exhaust systems.

Abstract: A decorative web or sheet of plastic material is obtained by spraying plastic material of different color and/or structure onto a carrier web by means of nozzles, the carrier web and the nozzles being movable in relation to each other, such that the nozzles can be placed over different, predetermined areas of the carrier web. The relative movement is controlled by means of a computer programmed with the desired web or sheet pattern. A suitable installation for carrying out the method has means for transporting the carrier web in one direction and carries nozzles which are movable parallel to the carrier web in two planes at right angles to each other. By means of the nozzles, plastic material is sprayed onto the carrier web in predetermined areas and to the desired thickness.

Abstract: An apparatus and method for treating one side of a moving web includes a pair of laterally spaced vertical end members. The web to be treated passes in a downwardly extending loop around the lower arcuate edges of the end members and is sealed thereto by tension in the web. The web and end members form a trough containing a flowable treatment material, and the web moves past the flowable material to be contacted and treated thereby. Guide means direct the web downwardly to the inlet side of the trough and upwardly from the exit side of the web-formed trough.

Abstract: A magnetic recording element comprised of a substrate having a magnetic recording layer disposed thereon is provided with a smooth uniform transparent lubricative and protective coating. The coating, which is composed of a telomer of tetrafluoroethylene, overlies the magnetic recording layer and also extends deeply into the topographical irregularities thereof so as to be strongly bonded thereto. To form the coating, a dispersion composed of particles of a telomer of tetrafluoroethylene dispersed in a liquid medium is applied to the surface of the magnetic recording layer, the liquid medium is removed to leave the telomer on the surface in the form of an opaque particulate film, and the particulate film is compacted, such as by use of buffing and calendering steps, to force telomer particles into the magnetic recording lever and to form a smooth uniform continuous layer of telomer over the surface of the magnetic recording layer.

Abstract: A process is provided for making a water-impermeable, vapor-permeable fabric. A lightweight continuous coating of polypropylene resin is applied to the surface of a fibrous sheet to make the sheet impermeable to water and vapor. Subsequent calendering provides vapor permeability to the sheet while maintaining liquid water impermeability. The resultant product is particularly suited for use as a roofing-tile underlayment or as an air-infiltration barrier.

Abstract: A flocked, sheet-like article which includes adhesive foam and flock. After the flocking, the article is partially dried and calendered. The sheet-like, textile article obtained in this way is light, air permeable, bi-elastic, and has a matted, flannel-like surface. The article can also be embossed.

Abstract: A fast-curing, melamine-modified phenolic laminating resin is described comprising the co-condensation product of aldehyde, phenol and melamine in a water-soluble organic solvent. The modified laminating resin exhibits sufficiently high penetration and curing characteristics for use in a low pressure, continuous laminating process.

Abstract: An electroconductive film having moderate transparency and electroconductivity and excellent mechanical properties inclusive of a good tear strength is provided through a process wherein an electroconductive fiber is dispersed over a thermoplastic resin film, and the thus formed loosely laminated sheet is hot-pressed between a pair of rollers having temperatures above and below the softening point of the thermoplastic resin film, at least one of the rollers being surfaced with an elastic material. The electroconductive film is suitably used as a packaging material for shielding electromagnetic wave.

Abstract: A compounded and plasticized vinyl chloride polymer layer, optionally supported such as with a fabric, contains an outer adherent and stain resistant layer having durability and flexibility comprising the crosslinked reaction product of a reactive polyester having free carboxylic acid groups and an alkylated benzoguanamine-, urea- or melamine-formaldehyde resin. The vinyl chloride layer may be printed or embossed or both printed and embossed, optionally printed again, before the outer layer is applied.

Abstract: A method for the incorporation of an active agent into a porous structural substrate which comprises forming a pseudoplastic gel comprising:an active agentat least one solvent thereforand at least one gel forming agent and thereafter applying the gel to the structure to be treated. The penetration of the gel into the porous structure may be regulated by decreasing the viscosity of the gel by increasing the shear on the gel during its application to the porous structure. A predetermined gel penetration of the structure is achieved before 75% of the solvent has evaporated.

Abstract: An array of at least three parallel rolls is provided. The rolls are constrained against each other to provide an elongated coating chamber through which passes a web entrained on at least one of the rolls. As it exits from the chamber, the coated web surface is wiped by another of the rolls, whose surface is entering the chamber at that point.

Abstract: A method of preparing a substrate coated with a proteinaceous foaming composition wherein the substrate is coated with the foamed composition and the foamed composition is mechanically disintegrated to form a continuous surface coating upon the substrate. The foamed composition is prepared by ingesting gas into an aqueous medium containing a proteinaceous foaming composition consisting essentially of at least one proteinaceous foaming component selected from the group consisting of vegetable protein hydrolyzate having at least two different chelating sites, egg albumen, and casein hydrolyzate; alkaline earth metal ions, and zinc ions.

Abstract: Disclosed is a method of producing a support for a photographic paper, which comprises applying primary irradiation of electron beams to at least one coated layer formed on one side or both sides of a substrate and curable by irradiation of electron beams, bringing the surface of said coated layer into contact with a form member and then peeling it from the form member, followed by applying secondary irradiation of electron beams to the coated layer. The primary irradiation is carried out in the manner that the surface of the coated layer may hold shapes substantially corresponding to shapes on the surface of the form member at the stage where the coated layer has been peeled off from the form member.

Abstract: A magnetic recording material is disclosed which is comprised of a single magnetic layer comprised of plate-shaped ferromagnetic particles wherein the plate-shaped ferromagnetic particles are present in greater number in the surface part of the magnetic layer than in the inner part and/or the plate-shaped ferromagnetic particles are aligned such that an average horizontal axis component of the particles with respect to the surface of magnetic layer is larger in the surface part than in the inner part. The location and alignment of the particles make is possible to increase output with short-wave recording.

Abstract: The invention provides a process for sizing warps of textile yarns. More particularly, the process involves use of compositions comprising, 40 to 90% by weight of a polyesterurethane and 10 to 60% by weight of an acrylic and/or vinyl polymer especially suitable for sizing polyester yarns such as polyethylene terephthalate.

Abstract: Novel coating apparatus and method whereby a coating transfer roll is utilized as part of the coating composition reservoir and kinetic energy from said roll is a principal and effective means to keep the coating composition effectively agitated.

Abstract: A pigmented coating composition comprising a pigment consisting of kaolin clay or TiO.sub.2 or the mixture thereof, or a pigment wherein Al(OH).sub.3 is further blended therein, and also comprising an adhesive consisting of crosslinkable ethylenevinylacetate copolymer aqueous emulsion combined with a crosslinker or of crosslinkable polyacrylate copolymer aqueous emulsion combined with a crosslinker of water-soluble polymaidepolyurea resin and the pigment above and the mixed adhesive are formulated in a ratio of 85:15 to 70:30 as coating composition. This pigmented adhesive composition is primed on the substrate paperboard. Thereby finished ovenable paperboards, being capable of retaining the brightness at least 45% against the heat-treatment of 250.degree. C. for 20 minutes, is free from scorch even in an electrically heating oven and is excellent in adhesion to extrusion-laminating plastic layer.

Abstract: In order to produce a heat-sensitive record material having high speed recordability without fogging a heat-sensitive record material having a heat-sensitive record layer coated thereon is passed through a nip between a metal roll and an elastic roll of 42.degree. to 69.degree. Shore-D hardness defined by ASTM Standard, D-2240 at a nip pressure enough to obtain a Bekk smoothness of 150 seconds or above on the record layer surface.

Abstract: A process for producing a multicolor heat transfer recording paper using hot-melt inks with different melting points is provided. With the recording paper obtained according to this process, it is possible to form high-density and clear multicolor transfer images by merely controlling the temperature of the thermal head in a thermal facsimile or other similar devices.

Abstract: A process is described for the manufacture of strip comprising a base metal substrate, a coating which has been electrodeposited on selected surface portions of said substrate and consists of precious metal or a precious metal alloy and, if desired, an intermediate diffusion barrier layer consisting particularly of nickel. The resulting strip constitutes a semifinished product for use in the making of electric contacts. When the coating has been electrodeposited, the strip is subjected to a recrystallizing annealing and to a rolling operation, preferably a cold-rolling operation.

Abstract: A security medium, secure articles made therefrom and methods of making same. Articles are disclosed which are resistant to counterfeiting and unauthorized alteration and which are suitable for use as currency, securities, security passes, identification cards, and analogous items now usually manufactured on paper. The novel articles comprise two synthetic material layers with a barrier layer therebetween and an image formed from sublimatable dye within at least one of the synthetic layers.

Abstract: A machine for coating a sheet material having an impervious surface and for impregnating as well as coating a porous web with high viscosity filling and coating materials in aqueous or non-aqueous suspension form.The machine has a smooth web support in the form of a flat table or, alternatively, a rotating drum, and an applicator in the form of an inverted box forming one or more pressure chambers extending across the table and under which the web is fed over the web support. The walls of the applicator, which extend across the table, form at least first and second blade elements adjustably positioned with their lower edges in close proximity to the table surface. The lower edge of the first is positioned above the table a slightly greater distance than the lower edge of the second.

Abstract: A method and chemical solutions for use in increasing the surface and volume conductivities of a cellophane substrate. The substrate can be used for dielectric copying or any other purpose for which a through-conductive substrate is required.

Abstract: A heat-sensitive recording paper comprising a paper support having coated thereon a heat-sensitive recording layer, which is surface-treated by passing said recording paper, after drying said heat-sensitive recording layer, through a pressure-applying member comprising a combination of a metal roll and an elastic roll of from 70 to 90 in Shore hardness wherein said heat-sensitive layer surface is contacted with said metal roll.

Abstract: Process for preparing flexographic photopolymer elements by passing into the nip of a calender a photopolymer composition mass comprising elastomeric binder, monomeric compound, and photoinitiator and calendering the photopolymer composition either between (1) a support and multilayer cover element consisting essentially of a flexible cover film, optionally a flexible polymeric film, e.g., polyamide, and a layer of elastomeric composition which is photosensitive or becomes photosensitive during or after calendering, or between (2) two supports, one of which is removed prior to contact, e.g., by lamination or pressing, with the multilayer cover element. The flexographic photopolymer elements are useful for flexographic printing, e.g., dry-offset, letterpress printing.

Abstract: A magnetic recording medium comprising a substrate, a thermoplastic prime coat provided thereon, and a ferromagnetic metal layer having columnar grains which at least partially penetrate into the prime coat from the top thereof and are integrated therewith. The medium is prepared by applying a prime coat onto a substrate, forming a magnetic metal layer having columnar grains by vapor deposition, and then heating and pressing the obtained combination.

Abstract: A process is provided for coating of substrate webs with polyethylene wherein the edge thickening and other processing difficulties caused by the necking-in phenomenon are minimized. The process comprises extruding a polyethylene having a melt index between 30 dg/min and 100 dg/min through a slot in a slotted die in the form of a sheet onto the moving substrate web to form the coated web, and passing the coated web through a nip roll assembly comprising a chill roll and a nip roll, the slotted die having at the extremities of the slot therein edge guides which are maintained at a temperature above the melting temperature of the polyethylene and are contoured to guide the adhered edges of the extruded sheet into the throat of the nip roll assembly.

Abstract: The invention relates to an apparatus and a method for the completely automatic lacquering of strip-form materials, whereby at least one unwinding device is provided with a fast running positioning device, an application roller and an opposing pressure roller are designed in such a way that they grasp the strip-form material and push it centered through the dryer and through a guide device and a winding up device is provided with at least one receiving spool which catches the strip-form material and winds it up.

Abstract: A process for the preparation of hard paper involves impregnating lengths of cellulose-containing material with plasticizer-containing mixture of a phenol-resol resin solution and cresol-resol resin solution according to a one-step method, subsequent drying, and then hardening of the resin-impregnated paper. The impregnating solution employed is a mixture of a 50-80% by weight phenol-resol resin solution with a 40-70% by weight cresol-resol resin solution, to which has been admixed, before impregnation, a plasticizer and additional water. The water is added in amounts of 4-12% by weight, based on the sum total weight of solid resins and plasticizer in the total solution mixture.

Abstract: Aqueous wood smoke is coated on tensioned fibrous reinforced dry stock cellulosic food casing in the flat form, and impregnates the casing wall while the latter is in a tensioned roll.

Abstract: A highly glossy skin of silicone rubber is produced on a roller body. The resultant rollers are adapted for use in the calendering of sheets and films of synthetic resinous material to produce a mirror-like finish thereon.

Abstract: Coating a porous substratum with a viscous substance is performed by means of a rotatable cylindrical sieve (plain-mesh screen), comprising an internal squeegee for pressing said substance through the perforations of the screen. The substratum are passed in contact with the screen and is supported at the contact zone by a roller. Although the peripheral speeds of the screen and the substratum is substantially equal, the rotational speed of the support roller is such, that its peripheral speed is either smaller or greater than that of the substratum to an extent of at least 5%. This avoids the occurrence of the phenomenon of pinhole formation in the coated substratum.

Abstract: A method and apparatus for treating textile cord on a continuous basis where the cord is sequentially treated by application of aqueous solution passed through a squeeze roll station, passed through a pull roll station and then to a drying operation. The applied liquid is additionally removed from the cord by specially positioned and designed elastomeric squeeges located in the squeeze roll area and the pull roll area.

Abstract: A method for producing a decorative design on a substrate by applying to the substrate an embossable coating comprising a filler, a binder, a release agent, a moisture control agent, and a liquid; drying the applied coating to remove a major portion of the liquid therefrom, sufficient liquid being retained to make the coating pliable and readily impressible by an embossing means; and subjecting the pliable coating to pressure contact with the embossing means, which is at ambient or an elevated temperature, to impress a decorative design into the coating; and the embossed coated substrate produced by the method.

Abstract: Metallic articles, for instance, ferrous strips are metallized, for instance, zinc coated by passing the heated article through a coating chamber and applying thereto a continuous stream of the molten coating metal so as to uniformly and evenly metallize said article. Thereafter, excess molten coating metal is removed from the coated article by hot gas blasting and the hot gas blasted article leaving the coating chamber is immediately cooled. Wiping means may be provided before applying the molten coating metal so as to deflect any molten coating metal dropping from the metallic article passing therethrough, while rollers may be arranged between the coating metal applying means and the hot gas blasting means. Said rollers serve to remove the major part of excess coating metal from the coated metallic article and to stabilize movement of the metallic article passing through the coating chamber.

Abstract: A surface of a substrate 11 (FIG. 2) is uniformly coated with a liquid L by wetting the surface with the liquid and compressibly contacting the wetted surface with an applicator member 10 having an outer layer 14 of a compressible liquid absorbing material with inverse sponge characteristics and an inner layer 13 of compliant material. Preferably the member is a roller 10 having a silicone rubber or polyurethane inner layer and a chamois outer layer. A plurality of the rollers 10 are arranged to be in compressive contact with the surfaces of a plurality of substrates 11 as the substrates are being removed from the liquid L (arrow A), the movement of the substrates 11 causing rotation (arrow F) of the rollers to apply a uniform coating of the liquid on the contacted surfaces.

Abstract: A method and apparatus for high speed application of sizing compositions in which there is a pair of oppositely rotating rolls forming a coating nip therebetween through which a paper web to be sized is directed. Sizing composition is delivered to the nip in sufficient quantity to form a pond of sizing composition above the nip. The invention is particularly concerned with reducing the effects of translational energy which is transmitted into the pond from the rolls by providing at least one flexible baffle member which extends into the pond on opposite sides of the paper web into proximity with the nip. The baffle member should be sufficiently long to absorb translational energy which would otherwise be absorbed by the pond of sizing material.

Abstract: Sheet material for surfaces for playing sports, comprises a support of non-woven fabric of polyester fibers having a thickness less than 1 mm., a polyurethane-base binder layer on the fabric, a layer of polyurethane powder at least partially embedded in the binder, and a finishing layer which is a polymerizable polyurethane resin whose exposed surface is the playing surface.

Abstract: Electrical-insulating pressure-sensitive adhesive tape, the backing of which is a web of oriented polymeric fibers impregnated with a crosslinked polymeric resin to provide a voids-volume of less than 60%.

Abstract: A cover fabric for a V belt having increased flex and wear-life, and a method of making the cover fabric. A fabric is bias cut into a continuous strip of fabric. The individual fibers in the continuous strip are impregnated with an elastomeric polymeric material effective to increase the flex and wear-life of the fabric when used as a cover fabric for V belts. This impregnation is accomplished by immersing the strip in a fluid mix having a viscosity of about 2000 cps or less, the mix including a fluid carrier, an elastomeric polymer (e.g. a polychloroprene compound) and a dark pigment. A coating of an elastomeric polymer (e.g. another polychloroprene compound) is applied to the strip, the strip is stretched in its width direction to increase the angular relation of the threads of the fabric relative to its longitudinal axis, and the thus coated strip is dried. The continuous strip is ultimately slit longitudinally of itself into a plurality of tapes, and the tapes are used to cover a V belt.

Abstract: The outer surface layers of a flexible polyetherurethane foam are impregnated and dried with a latex of a flexible carboxylated styrene-butadiene type copolymer to provide a polyurethane foam having a surface which resists degradation in contact with a hot metal, e.g., steel, surface.

Abstract: A froth coated paper substrate in which the froth coating may be densified by compression when applied as a frothed resinous emulsion to improve opacity and ink-holdout of the substrate, or applied as a frothed surface size when the coating is a frothed admixture of a resin emulsion and a starch solution, or a frothed starch solution.

Abstract: A method of making a pressure-sensitive adhesive tape comprising a substrate formed of high-density, flexible, open-cell polyurethane foam impregnated with a chlorine-containing elastomer and coated with a pressure-sensitive adhesive.

Abstract: A method and apparatus for positioning a wedge in a web coating machine utilizes hydraulic actuating cylinders for moving the wedge and a multicylinder constant displacement pump for operating the hydraulic actuating cylinder. Valve circuits are provided to transmit trains of pulses generated by the pump to a selected port of the hydraulic actuating cylinder and a valve circuit is provided to select the cylinders of the pump utilized to operate the hydraulic actuating cylinder. Each cylinder of the pump generates volumetrically metered pulse trains of pressurized hydraulic fluid and the valve circuits transmit selected numbers of pulses from selected pulse trains to the hydraulic actuating cylinder for a time period equal to a multiple of the cycle time of the pump.

Abstract: Crushed foam coated urethane foam is disclosed wherein the crushed foam coating contains a pigment or a flame retardant or both to protect the urethane foam against discoloration due to ultraviolet light or to provide protection against fires. The crushed foam may be obtained from a frothed latex applied to the polyurethane foam, dried and crushed to a final thickness of 10 mils to 250 mils.

Abstract: A textile piece 10 to be coated with rigidizing plastic supplied by a compressing cylinder 12 is fed through a nip zone between the cylinder and a driven roller 16 by conveyors 15, 17. The compressing cylinder is mounted between pivotable levers 18, 19 counterweighted in one direction, and urged in the opposite direction to squeeze the fabric by a lateral array of pneumatic cylinders 21. The cylinders are individually controlled by a lateral array 13 of photocells which continuously sense the width of the incoming textile piece, whereby the nip zone force is automatically controlled as a function of fabric width to provide a uniform coating pressure on irregularly shaped or oriented textile pieces.

Abstract: Disclosed is an applicator for the application of liquid to webs and methods of using it. A web-guide path is defined through the applicator and has an intermediate enlargement. One or more inlets and one or more outlets are provided at the exterior of the applicator and at the enlargement respectively, which are part of a closed passageway system for the supply of liquid to the enlargement. A slit-like passageway system affords passage of web to the enlargement. An exit passageway with one outlet affords passage of web, to which liquid has been applied, from the enlargement out of the applicator. Means are provided for changing characteristics of the exit passageway whereby selectively to influence the application of liquid to the web. By using such an applicator in which provision is made for changing the size or shape, or both, of the exit passageway, considerable control may be exercised over both the degree of impregnation of the liquid into the web and the thickness of liquid coating on the web.

Abstract: A cast coated paper which has the 20.degree. reflection gloss of 15% or more and good ink receptivity is produced by applying to a paper an aqueous coating color containing satin white in an amount of 5 to 40 parts by weight based on 100 parts by weight of pigments including the satin white, and a polymer latex having a Tg more than 45.degree. C. in an amount of 5 to 40 parts by weight of 100 parts by weight of the pigments including the satin white.