Abstract: Coating methods and compositions for products and transfer media, such as carbon papers, in which a preliminary coating of liquid-dispersed colorant, such as carbon black, is applied at a first stage followed by a transfer overcoating at a second stage. The multistage coating procedure affords the threefold benefits of (1) improved image transfer properties in the product; (2) a reduced tendency of the product to smudge; and (3) less than the conventional amount of transfer materials for a specified result being required.

Abstract: A method and device for slide hopper multilayer coating, that aims to reduce or prevent the formation of beaded edges of the layers of coating composition as the layers slide down along the slide surfaces of the slide hopper coating head and as they are applied to a moving web material, wherein at least the upper one of the different layers formed by the slide hopper coater is coated at a width (l.sub.2) that exceeds the width (l.sub.1) of at least one other lower layer formed by the hopper.

Abstract: A novel heat release layer for use in connection with decalcomania paper and in decalcomanias which include a vitreous design layer surrounded by a heat release layer and a heat activatable adhesive layer is disclosed. In particular, the novel heat release layer disclosed comprises a combination of a normally solid straight chain, primary aliphatic oxyalkylated alcohol with either/or (1) a normally solid polyethylene glycol having an average molecular weight of greater than about 1,000, and (2) an amide of a fatty acid. Preferably, the oxyalkylated alcohol has a molecular weight above about 1350, the polyethylene glycol is present in the heat release layer in an amount of from about 1 to 50 weight percent thereof, and/or the amide of a fatty acid is present in the heat realease layer in an amount of from about 1 to 25 weight percent thereof.

Abstract: An improved dielectric printing paper and process for making the same, characterized by excellent resolution, contrast, and feel. The paper incorporates an inorganic salt such as magnesium chloride as a conductivity-providing ingredient. The dielectric coating is formed with a high loading of inorganic fillers and is applied by a dry process to form a discontinuous dielectric coating on the conductive paper substrate.

Abstract: High quality cast-coated paper is obtained with high productivity by applying an aqueous coating composition containing a coating pigment and a binder to the surface of base paper by means of a blade coater to form an undercoating layer, the application rate being from 5 to 25 g/m.sup.2 on dry basis per side; then applying to said undercoating layer an aqueous coating composition containing a coating pigment and a polymer latex having a glass transition point of 38.degree. C. or higher to form an overcoating layer, drying said overcoating layer at a temperature below the glass transition point of the latex in said overcoating layer; and subjecting it to mirror finish treatment at a temperature higher than said glass transition point.

Abstract: A method for producing a multicolor heat transfer decal comprises printing specially formulated thermoplastic inks successively onto a pre-release coated carrier sheet. The inks give optimum print quality using plastic printing plates and a rotary letterpress or flexographic printing process.

Abstract: An improved aqueous process for making a conductive medium for electrostatic printing and the conductive medium therefrom, the process comprising applying to one side of a high density basestock a partially insolubilizable aqueous conductive latex precoat, preferably ranging in coat weight from 0.5 to 1.0 pounds per 3000 ft.sup.2, the insolubiliztion of the conductive latex resulting from a partial insolubilization of the major conductive component of the latex; applying to the other side of the basestock a first aqueous low-resistance conductive precoat preferably having a coat weight of about 2 pounds per 3000 ft.sup.2 ; partially insolubilizing the conductive latex precoat; applying to the partially insolubilized latex precoat an aqueous dielectric coating preferably ranging in coat weight from 4.5 to 6.5 pounds per 3000 ft.sup.2 ; and applying to the first low-resistance precoat a second aqueous low-resistance conductive coating preferably ranging in coat weight from 0.5 to 1.5 pounds per 3000 ft.sup.2.

Abstract: Dry finished coated paperboard is prepared with a smoothness and printability substantially equivalent to a comparable wet finished product, and without significant loss of bulk, with the addition of a plasticizing agent to the surface sizing formulation prior to calendering and before coating. The plasticizing agent preferably has a boiling point greater than water and is soluble in water. In addition, the surface size treatment is preferably applied with a blade, gateroll or like arrangement so that the plasticizing agent remains substantially on the surface of the paperboard with little or no penetration.

Abstract: A silicone-coated article having releasability imparted thereto by the coating of a silicone, wherein that surface of said article on which to coat the silicone is composed of a resin consisting of a polar group-containing olefinic resin comprising (a) 55 to 99% by weight of a unit derived from an olefin and (b) 1 to 45% by weight of a unit derived from a radical-polymerizable monomer containing a polar group selected from the class consisting of ##STR1## in which R.sub.1 represents a hydrogen atom, a metal capable of forming a salt with the carboxyl group, or a monovalent hydrocarbon group, and R.sub.2 represents a monovalent hydrocarbon group; and a method for the production thereof.

Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

Abstract: High quality cast-coated paper is obtained with high productivity by applying an aqueous coating composition containing a coating pigment and a binder to the surface of base paper by means of a blade coater to form an undercoating layer, the application rate being from 5 to 25 g/m.sup.2 on dry basis per side; then applying to said undercoating layer an aqueous coating composition containing a coating pigment and a polymer latex having a glass transition point of 38.degree. C. or higher to form an overcoating layer, drying said overcoating layer at a temperature below the glass transition point of the latex in said overcoating layer; and subjecting it to mirror finish treatment at a temperature higher than said glass transition point.

Abstract: An ultra thin laminate is made by: (1) assembling a laminate stack-up consisting of: one paper sheet having a top decorative surface and a bottom surface coated with a resinous film, about 0.25 mil to about 5 mil thick, effective to opacify the paper and provide a barrier to resin flow, and one abrasion resistant protective overlay sheet disposed in contact with the decorative surface of the paper sheet; (2) heat and pressure consolidating the stack-up to form a unitary decorative laminate having a thickness of between about 5 mil and about 15 mil, and having a resinous film on one side that is glue adherable.

Abstract: A curl resistant paper-based label. The label includes a coating on the paper layer of the label of a lecithin compound. This compound provides curl resistance properties to the label, water holdout properties to the label and increases the flexibility of the label. A method involves coating the lecithin compounds onto the paper layer of the these labels.

Abstract: Electroconductive coating formulations consisting essentially of (1) a barrier coating which comprises a copolymer of ethylene and vinyl acetate, styrene-butadiene latexes, sodium alginate or fluorocarbons with starch; and (2) a conductive coating.

Abstract: Flexible double-layer polypropylene laminate consisting essentially of a biaxially oriented film of isotactic polypropylene with an atactic polypropylene content of less than 6% by weight and an intrinsic viscosity of from 1.5 to 3 dl/g, adhesively bonded to a non-oriented film of isotactic polypropylene with an atactic polypropylene content of from 15 to 30% by weight, said polypropylene in said non-oriented film deriving directly from the polymerization of propylene and having an intrinsic viscosity of from 2 to 8 dl/g.

Abstract: A vent for thin, flat laminar batteries comprising a paper strip enclosed along its length by a gas-permeable, liquid impermeable thermoplastic composition. One or more of the vents can be incorporated into a frame structure which also serves to provide internal and external sealing. For this purpose, the vents are sealed to frames comprising closed loops of thermoplastic material, dimensioned to correspond to the external and internal dimensions of the battery. Methods of making vents comprising the steps of laminating paper with a thermoplastic material and forming the laminate into thermoplastic tubes filled with a paper core.

Abstract: Ambient or low-temperature curable aqueous dispersions of (1) an emulsion polymer containing units polymerized from a monomer mixture of (a) from about 0.25% to about 10% by weight of a polymerizable aldehyde, (b) from about 0.5% to about 10% by weight of an ethylenically unsaturated carboxylic acid, and (c) up to about 99.25% by weight of at least one copolymerizable mono-ethylenically unsaturated monomer, with (2) a curing agent selected from the group of dicarboxylic acid bis-hydrazides and bis-hydrazones are disclosed. The dispersions are useful in leather treating compositions, especially in top coat compositions. A process for producing fully finished leather, or leather substitutes is also disclosed.

Abstract: Disclosed is a method of detecting a cured silicone coating applied to a paper substrate or the like in web form, comprising adding an effective amount of a fluorescent pigment to the silicone coating formulation to be applied to the substrate, applying the coating to the substrate, curing the silicone coating, scanning the coated surface of the substrate with a UV light source, and detecting the fluorescence of the coating. Also disclosed is the coated paper product with which the method of the invention can be employed.

Abstract: This invention relates to organic pigment-containing paper coating systems which require less severe calendering conditions to develop the surface and optical properties of paper than coating systems using inorganic pigments alone. It comprises overcoating a pre-applied mineral based coating with an organic pigment based coating.

Abstract: The invention relates to a process for the production of a melamine resin coated paper for the formation of hot-molded, scratch resistant surface layers on laminate synthetic substances and wooden working materials, whereby the paper is preimpregnated with a urea resin or an aminoplast rich in urea and is then provided with an application of a melamine resin. At the same time, a solution of a resin is used for the preimpregnation of the paper, the degree of condensation of which is higher than the degree of condensation of the melamine resin to be used for the formation of the cover layer, and the preimpregnation is dried hot, to an extent that the preimpregnation resin is hardened to the point it is practically no longer soluble in the melamine resin.

Abstract: Method and apparatus for applying a plurality of superposed layers to a web by curtain coating in which only some of the plurality of layers are, and in the extreme case only one layer is, in contact with the curtain guides. The width of the remaining layers is smaller than the width determined by the curtain guides, and preferably smaller than the width of the web.

Abstract: Cartridge filters of enhanced capture potential for fine contaminants, prepared by selective interaction of melamine formaldehyde bonding resin and polyamido/polyamine-epichlorhydrin charge modifier.

Abstract: A process for separating a collated stack of carbonless copy paper sheets into form sets, which comprises pretreating the edge of the stack of sheets to be padded with a non-aqueous material, drying, applying an adhesive composition, drying and separating the unit sets.

Abstract: A new and improved structural system comprising an interpenetrating plastic and substrate network material composite including two phases, a first phase comprising a substrate of intersecting partitions of paper material or other fibrous or absorbent material defining a cellular lattice, and a second phase comprising a polymerized plastic material penetrating and intimately contacting the structure of the paper or other fibrous or absorbent material filling the voids and interstices between the fibers of the paper material and hardened to a desired condition of rigidity. The cellular lattice of composite material is coated with at least one coating of plastic material adherent to and chemically binding with the hardened composite surface and with sufficient agglomerating or aggregative characteristics to form plastic weldments or fillets at the intersections of the substrate partitions.

Abstract: A process for separating a collated stack of carbonless copy paper sheets into form sets, which comprises pretreating the edge of the stack of sheets to be padded with water or an aqueous solution or dispersion, drying, applying an adhesive composition, drying and separating the unit sets.

Abstract: The present invention relates to a process for manufacturing an artificial leather composite material, and comprises:(i) a cellulosic fibrous mass bound by means of a binding agent, and impregnated by means of at least one acrylic polymer or copolymer,(ii) an intermediate pore-blocking layer comprising at least one vinylic polymer or copolymer, and(iii) a finishing layer comprising at least one vinylic polymer or copolymer and at least one coalescence agent.

Abstract: Organopolysiloxane compositions are provided which are curable by condensation reaction taking place between a first component, hydroxy-terminated diorganopolysiloxane and a second component, organohydrogenpolysiloxane by aid of a third component, a condensation catalyst, and which are made to have their pot life extended by adding a fourth component, acyloxysilane, optionally in combination with a carboxylic acid, as a condensation retarder. The addition of the retarder does not adversely effect the curing velocity of the composition even at an elevated temperature and the properties of the cured composition.

Abstract: This invention relates to an improvement in a substrate web coated with a thermosetting coating resin and optionally impregnated with an aminoplast resin, in particular a web of paper, for the surface finishing of woodwork panels or laminates, the improvement that the coating resin is a modified polyester resin, composed of (a) 60 to 95% by weight of a hardenable polyester resin, (b) 1 to 15% by weight of a cross-linking agent for the polyester resin, (c) 5 to 40% by weight of a thermoplastic containing predominantly linear, high-molecular weight, reactive groups, (d) 1 to 15% by weight of a monomer with at least one polymerizable double bond and at least one group which reacts with the reactive group of the thermoplastic, and (e) a hardening catalyst, and optionally dyes, pigments and/or fillers. The invention also relates to a process for preparing a synthetic resin coated substrate web.

Abstract: A method of reducing the number or amount of chemical additives normally incorporated into paper pulp furnish before transferring the latter to the continuous wire mesh of a papermaking machine in the manufacture of paper sheet involves the use of a hydrolyzed proteinaceous foam which does not appreciably affect the degree of sizing of the finished paper sheet. The use of such foam in paper manufacture can render unnecessary the chemical treatment of effluent from the papermaking machine which is normally required to avoid environmental pollution.

Abstract: A metallized paper product useful in packaging and decorating applications is provided by a process of coating a paper substrate with a radiation curable resin precursor, curing the precursor by immediately contacting the precursor with an electron beam to provide a smooth resin film and then vacuum metallizing a thin layer of metal on the resin film.

Abstract: The present invention relates to a process for coloring or dyeing a material formed essentially from a substrate impregnated with bitumen, said method being characterized in that a colored composition is applied, in particular a pigmented composition, to the substrate before the impregnation of the latter by the bitumen. It also concerns the material thus obtained, characterized by a color gradient between the surface and the inside of the substrate, the color intensity decreasing continuously and practically regularly from the surface.

Abstract: A premoistened wiper having high initial wet strength in a wetting liquid, and lower wet strength when immersed in substantially neutral water to allow for flushability. The wiper includes a nonwoven web of fibrous material which is bonded together by a polymeric adhesive binder, with the bonded web being moistened until the time of use by a wetting liquid having an acid pH level which is safe for external use on the human body. The binder is composed of a material which is highly adhesive in an acid pH liquid to bind the fibers of the web together, and which is further resistant to weakening over the relatively long periods of shelf life of the wiper. However, the binder loses its binding strength in substantially neutral or alkaline flush water to allow for flushability. The bonded wiper is maintained with wetting liquid thereon within a moisture sealed container until the time of use, and readily loses strength and disintegrates when disposed of in the substantially neutral water of a sewer system.

Abstract: A paperboard tube for use in forming concrete columns is split longitudinally into two parts, with each part initially having its cut edges treated with a urethane resin, with each part then being dipped into a solution of an acrylic resin, and finally each part then having its interior surfaces coated with a urethane resin, each part is then assembled into a composite tube, and when used, having a reinforcing member arranged along the length of its longitudinal slits, for reinforcement of the tube edges, and finally a strap(s) or clamp(s) is arranged therearound so as to secure the tube into position for use in the pouring of concrete columns.

Abstract: A release sheet useful in the production of heat and pressure consolidated laminates comprising a paper sheet having coated thereon a first coating comprising(A) an oil-modified alkyd resin crosslinked with a polyalkylether of a polymethylol melamine and a second coating, atop said (A), comprising(B) a copolymer of an unsaturated acid, ester or anhydride and a vinyl ether or an unsaturated alkyl compound.

Abstract: A release sheet useful in the production of heat and pressure consolidated laminates comprising a paper sheet having coated thereon a mixture ofA. an oil-modified alkyd resin crosslinked with a polyalkylether of a polymethylol melamine andB. a copolymer of an unsaturated acid, ester or anhydride and a vinyl ether or an unsaturated alkyl compound.

Abstract: Printed and varnished surfaces are provided by depositing a base film or printing on a substrate and depositing, wet-on-wet, a protective varnish or top coat after which the multilayers are exposed to an energy source, preferably to electromagnetic radiation, to simultaneously cure the varnish and ink on said substrate.

Abstract: Photoinitiator-free inks and a method of producing printed and varnished surfaces are provided by depositing a base film or printing on a substrate and depositing, wet-on-wet, a protective varnish or top coat after which the multilayers are exposed to an energy source, preferably to electromagnetic radiation, to simultaneously cure the varnish and ink on said substrate.

Abstract: The disclosure relates to a method and apparatus for treating porous wrapping material for a smoking article, for example a cigarette filter. According to the invention, the porous material is provided, by coating with a film-forming substance, with an impervious region or regions positioned to coincide with a region or regions at which adhesive is to be applied, the said substance being dried or set before such adhesive is applied. Thus, a line or lines of the film-forming substance may be applied to the same face of the wrapping material as a line or lines of adhesive for sealing the wrap and/or anchoring filtering material thereto, namely to that face which will be on the inside of the wrap formed from the said material.

Abstract: A release composition for bituminous materials comprising a mixture of an organopolysiloxane and an aminofunctional silicon fluid.

Abstract: A predecorated printed paper on the gypsum wallboard with a clear washable coating over the printed paper, and having a thin coating of polyethylene emulsion on the back paper which overcomes the tendency of the coated predecorated paper to stick to the back paper of an adjacent board when the boards are piled in stacks for storage and shipment.

Abstract: A laminated protective packaging material particularly for use in making heat sealable envelopes comprises an outer paper substrate having a continuous, aqueous based heat sensitizable coating applied to one surface thereof. The outer paper substrate may consist of conventional coated or uncoated paper, bleached or unbleached kraft paper or any other similar material. The heat sensitizable coating may consist of an alkali-soluble ethylene-acrylic acid copolymer resin or other heat sensitizable ionic polymer resin with or without the addition of filler materials for increasing the viscosity of the coating and/or for improving the heat sealing characteristics of the coating. The heat sensitizable coating is particularly characterized by its ability to be heat sealed to itself and laminated to a foamed polymeric material having a cellular structure such as polyethylene foam.

Abstract: This invention relates to an electrosensitive marking blank having a blushed conductive layer and a pigment containing blushed masking layer. The instant electrosensitive element has particular utility in that a relatively thin masking layer in combination with a blushed conductive layer results in a blank having improved whiteness and contrast characteristics.

Abstract: A process is provided to produce a novel photographic base by applying an aqueous coating composition containing aluminum oxide particles to at least one surface of a substrate, drying the coated substrate, applying a molten film of a polyolefin over at least one of the coated surfaces of the coated substrate, adhering the polyolefin to the coated surface, and cooling the polyolefin film to a temperature below the melt point of the polyolefin. The photographic base so produced may be further treated by applying a coating of a light sensitive silver halide emulsion to one side of the photographic base paper and drying the emulsion coated paper.

Abstract: A method for producing releasable laminates by coating a water-dispersed pressure-sensitive adhesive onto either a web of paper face stock or a web of release paper, joining the two webs together with the adhesive therebetween while the adhesive is still wet, and then drying under moderate conditions to produce a relatively wrinkle-free and flat laminate having an exceptionally smooth and uniform adhesive layer.

Abstract: A dry release sublimation transfer is provided which includes a temporary backing sheet having disposed thereon a sublimation transfer design layer formed of one or more sublimation transfer inks, and a polymeric coating disposed in contact with such design layer. In one embodiment, the design layer is first printed on the backing sheet employing conventional printing techniques and thereafter the polymeric coating is applied over the design layer. In another embodiment, the polymeric coating is first applied to the backing sheet and thereafter the design layer is printed over the polymeric coating. The dry release sublimation transfer is applied under heat and pressure to a substrate to be decorated, such as cotton fabric or a cotton-polyester fabric, thereby causing the polymeric coating to soften and penetrate into the substrate and upon cooling securely bond the design layer to the substrate.

Abstract: A coated paper having high gloss and high bulk and a method for producing the paper wherein a high-solids coating is applied to the paper and pressed against a heated finishing surface.

Abstract: New dyestuff salts of the formula ##EQU1## WHEREIN A denotes the radical of an anionic dyestuff, R, R.sub.1 and R.sub. 2 denote alkyl radicals with a total of 10 - 24 carbon atoms and n denotes the number 1 - 4.The dyestuff salts show excellent solubility in organic solvents such as alcohols, ketones and esters. Due to the excellent solubility in organic solvents, the dyestuffs of the instant invention are especially suitable for dyeing solutions of polymers such as polystyrene or polyamides.

Abstract: plastic coated sized paperboard, used in the manufacture of leak proof containers for liquids, is provided with a coating of a water-soluble calcium salt disposed between the sized paperboard and the plastic coating. In testing formed containers for defects in the plastic coating by means of a dye solution containing a wetting agent, the coated paperboard of this invention provides for a more positive determination of the nature and size of any defect indicated than heretofore since the calcium ion present in the coating imparts good resistance to excessive penetration and spreading of the dye solution.

Abstract: A water resistant corrugated paperboard material is prepared wherein the paperboard components (medium and liner or liners) are each coated on both sides with a thermoplastic film which acts as a water barrier and a water resistant adhesive for bonding the components together. The corrugated medium is also pretreated with an internal size treatment to prevent edge wicking, and, for the purpose of corrugating the medium without deleteriously affecting the thermoplastic film, the corrugating rolls are preheated to a temperature slightly less than the melting point of the thermoplastic film while a lubricating material is simultaneously applied to either the corrugating rolls or the medium at the corrugating nip.

Abstract: coating compositions comprising polyalkyleneimine and cellulose acetate propionate in solution, and related process and product, are disclosed. Such compositions are particularly useful as primer coatings for substrates of regenerated cellulose, paper and paperboard where cellulose ester top coatings are used. Use of such compositions as primer coatings improves adhesion of the top coating to the substrate, particularly where the coated substrate is heat-sealed, for example, in packaging applications. Also, the coating composition provides increased resistance to blocking, which is especially important where the substrate is sheet material wound in a roll.