Abstract: A high-gloss coated paper can be produced by coating a paper or a prime-coated paper with an aqueous coating solution comprising a synthetic polymer latex (A) having a glass transition temperature of at least 38.degree. C. and a synthetic polymer latex (B) having a glass transition temperature of 5.degree. to 25.degree. C. in a weight ratio of 1:0.1 to 1:1 in terms of solid content, drying the coated paper, and then bringing the coated surface into contact with a hot calender under pressure at a temperature not lower than the glass transition temperature of the synthetic polymer latex (A), thereby forming a mirror-finishing on the surface of the coated paper.

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 coated paper having high bulk, excellent gloss and low surface mottle is prepared by first coating the paper with an aqueous composition containing pigment and a thermoplastic binder. The paper is then initially dried at a temperature of up to about 20.degree. F. above the minimum film-forming temperature of the binder until the moisture content of the sheet reaches from about 8 to about 18% by weight. The drying temperature is then increased to further dry the paper, and the dry coated paper is then calendered.

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: 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: Flexible, sheet-type covering material is made by coating a porous mat with mechanically frothed plastic foam. The foam is gelled, at least partially fused and then calendered to crush the foam.

Abstract: An aqueous coating composition containing thermoplastic synthetic resin emulsion is applied to a paper web to form a coating layer and dried at a temperature to maintain the coating layer below the glass transition temperature of the thermoplastic synthetic resin emulsion. The coated paper web is passed on a finishing roll having a mirror-like metal surface heated to a temperature above the glass transition temperature of the emulsion. The surface of the coating layer of the coated paper web is brought into pressing contact with the finishing roll and heated to a temperature above the glass transition temperature of the emulsion, while the coated paper web is passed on the finishing roll. The coated paper web is cooled until the temperature of the surface of the coating layer is reduced to a level not exceeding the glass transition temperature of the emulsion by 30.degree. C.

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: A reinforcement seal and tear tape or line is produced by a method wherein selected fibrous yarn is passed into a bath of hot-melt adhesive maintained at a desired temperature. The yarn is spread laterally and tensioned within the bath to cause the adhesive to penetrate and surround the fibrous yarn. The adhesive adhered to the yarn is extruded within the bath to controllably reduce the amount and cross-sectional shape of the adhesive coating on the yarn by contact with rollers, one of which is submerged in the adhesive bath or a die partly submerged in the adhesive bath. The yarn with an extruded adhesive coating thereon is then cooled by passing through a refrigerated cooling chamber after which the adhesive coating is formed into a desired shape by contact with a chilled-forming surface of superimposed rollers. Reels are then used to coil the coated yarn into spools.

Abstract: Novel quaternary ureidomethyl phosphonium salts having the general formula ##STR1## are prepared by condensing a urea having the formula RNHC(O)NR'R" with a quaternary hydroxymethyl phosphonium salt having the formula (HOCH.sub.2).sub.4 P.sup.+ X.sup.- in a molar ratio of at least 2:1. The products, which are characterized by the absence of residual hydroxymethyl groups, are useful as finishing agents for imparting flame retardant properties to cotton fabrics.

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: Surfaces of thermally conductive substrates are covered with thermoplastic polymers, particularly certain fluorocarbon polymers by bonding said polymeric materials directly to surfaces of said substrates. Adhesives, etchants, or the like are not used as bonding elements. The process involves treating the surfaces to make them wettable by water and then cleaning the surfaces, if necessary, followed by heating the substrate to a temperature at which the polymer melts, gels or softens (herein called the softening point), then placing the polymeric material into contact with the prepared surfaces and applying pressure on the polymeric material to force it into fusing and bonding contact with the heated surface and then cooling the substrate to a temperature below the softening point of the polymer. The products produced are preferably rolls. In their covered form as produced by this invention they are useful as processing rolls in office copier's fusing systems, rolls used in food cooking processes, and the like.

Abstract: The impregnation of a non-woven fabric with a plastisol is accomplished by first coating the fabric with a heated plastisol having a viscosity in the range of 4 to 30 poise, subsequently pressing the coated fabric against a rotating cylinder which has been heated to within the range of 130.degree. to 180.degree. C. and maintaining the coated fabric in contact with the cylinder for a sufficient time to obtain complete impregnation of the fabric by the plastisol and to gel the plastisol to the side of the fabric disposed away from the cylinder.

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.

Abstract: A sheet material finished on at least one side with a coherent surface layer is formed by electrostatically spraying a solution or dispersion of plastics producing fibers from 0.1 to 30 microns in diameter. Then the mat is consolidated with heat and pressure, whereby the fibers form a tight bond with the surface of the support material which is thus finished.

Abstract: Heat curable liquid polyvinylchloride plastisol or organosol resin is coated onto a porous fiber web in an amount sufficient to saturate the web. Liquid resin on one surface of the web is gelled by passing the web around a heated roll which, together with another heated roll, forms a compression nip. The web passes through the nip and around the second heated roll to gell the resin on the other surface of the web, after which the curing of the resin is completed in an oven.

Abstract: The method of treating sheet material such as leather and the like to make it supple in which the sheet material is subjected simultaneously to hot moisture and a cooling medium under pressure, alternatively from the grain side and from the flesh side in a continuous method. This is performed between two endless conveyor belts which are wetted by water, each of which is independently guided and saturated with water on the outer side and which are guided together on the inner side that is, they are guided alternatively from above and from below round a portion of the circumference of a plurality of rollers. Moistening, cooling and heating units are arranged on the outside of the rollers.

Abstract: Fuser members having surfaces of gold and the platinum groups metals and alloys thereof are described for fuser assemblies in office copier machines. Preferred fuser assemblies include cylindrical rolls having at least an outer surface of gold, a platinum group metal or alloys thereof. Electroscopic thermoplastic resin toner images are fused to a substrate by using a bare gold, a platinum group metal or alloys thereof fuser member coated with polymeric release agents having reactive functional groups for example, a mercapto-functional polysiloxane release fluid.

Abstract: Heat activatable, fabric conditioning products comprising thick, absorbent substrates impregnated with fabric conditioning chemicals are suitable for use at elevated temperatures encountered in laundry dryers. Prior to being used, such products tend to be stiff and boardy because of the brittle, wax-like properties of the fabric softener chemicals at ambient temperature. The stiff-boardy properties have been substantially eliminated by temporarily compressing the thick impregnated substrate to less than 70% of its original thickness. However, substantial impregnate is lost as dust from the substrate during compression at ambient temperatures. When hot rollers are employed for compressing the impregnated substrate, the loss of chemical impregnated ingredients caused by the compression step is substantially reduced.

Abstract: The continuously fed paper sheet is subjected to the successive steps of coating an acceptor composition at its one side, drying, calendering with a calender comprising a metal roll and an elastic roll having a Shore hardness within the range of 65 to 90, further coating a color former composition on the other side and further drying. The continuously fed paper sheet may be subjected to a cylinder ironing treatment between the first drying step and the calendering step.

Abstract: The invention relates to the production of leather belts and aprons for textile machines in which the natural smooth and relatively non-fibrous grain surface of the leather is removed to expose the natural inner flesh surface and subjecting the surface to mechanical treatment by setting or rolling to compact the surface and impregnating the surface with a polymeric substance to consolidate the surface layer to produce a belt or apron with a smooth non-tacky surface.

Abstract: A laminar board having a base of bonded wood particles carrying a decorat facing is produced by sequentially moving a carrier web through a loading zone and a press zone. The carrier web consists essentially of paper impregnated with a synthetic resin composition and having a permeability to water vapor of at least 1000 g/m.sup.2 /day. A layer of loose wood particles intimately mixed with a bonding agent is superimposed on the carrier web in the loading zone, and the resulting layered material is subjected in the press zone to a temperature and pressure sufficient to bond the loose particles to each other by the bonding agent in a dense structure and simultaneously to bond the particles to the carrier web by the bonding agent and/or the synthetic resin composition.

Abstract: A method is disclosed for coating a substrate or web with a plastic material. A liquid plastisol coating is applied to the web and the coated web is then passed between a put-on roll and a heat drum, which heats and cures the plastisol. The put-on roll is pressed against the heat drum to compress the coated web. The plastisol is partially cured to gelation while being compressed by the put-on roll, and the curing of the plastisol is completed during further travel of the web around the heat drum.

Abstract: Method of weatherproof caulking the outer surfaces of iron and steel with a synthetic rubber dispersion of copolymers of styrene, butadiene and an unsaturated carboxylic acid and made thixotropic by the addition of organic and/or inorganic thickeners, and inorganic and/or organic fibrous substances.

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: Liquid is applied onto the circumference of a transfer roller by an applicator and thereby onto the circumference of an operating roller. The coefficients of friction in the apparatus are selected so that the transfer roller will be rotated by the operating roller to pick up liquid from the applicator when the thickness of the liquid on the transfer roller is below a selected value, and the transfer roller is prevented from rotating by the applicator when the thickness of the liquid slightly exceeds the selected value so that a uniform liquid film is applied onto the circumference of the operating roller.

Abstract: A dense paper comprising a web of cellulosic fibers and an impregnant dispersed throughout the web, the impregnant consisting essentially of a blend of a rigid polymeric material and an inorganic filler, in stated proportions, with the impregnant constituting a minor portion of the finished weight of the paper. A process for producing the paper is disclosed.

Abstract: The printability characteristics of gloss calendered paper coated on one side only is improved by moistening the uncoated side of the paper prior to gloss calendering the paper. Enough liquid must be applied to the uncoated side to raise the overall moisture content to at last about 8.5% and preferably to about 10% or more. The paper is gloss calendered while still wet and before appreciable amounts of the added liquid can migrate to the coated side of the paper. Thus a localized zone of high moisture content is provided at the uncoated side of the paper during the calendering. Under such conditions the gloss calendering produces a paper whose printability characteristics, especially its print smoothness, are better than conventional gloss calendered paper and, under preferred operating conditions, approach or equal those of conventional supercalendered paper.

Abstract: A non-woven fabric floor having the desirable attributes of a non-woven carpet construction combined with the desirable attributes of a decorative thermoplastic surface covering and a method for its production are described.

Abstract: A coated paper having a finished surface of improved printability and glueability is produced by applying the coating to a paper web, drying the coated web and passing the dried coated web through a pressure nip in contact with a heated finishing drum. The coating contains an all-synthetic, thermoplastic resin binder and a very small amount of release agent.

Abstract: A process is described in which a cast coated high gloss polymeric coating is formed on a sheet substrate by applying an aqueous emulsion or dispersion of polymeric material to the substrate, forming a continuous film of the polymeric material in the presence of water by heating without pressure to a temperature above the film forming temperature of the polymeric material, and moulding the film under high pressure at a temperature greater than 100.degree.C. The process is capable of being operated in such a manner as to give a high gloss coating that has a gloss and smoothness as good as or better than that obtainable by cast coating of mineral pigment.

Abstract: A non-woven fabric having a fibrous surface similar to that of leather and high mechanical characteristics so that it is adapted for use as a substitute for leather in industrial applications is prepared by saturating a matt of fibers with an elastomeric polyurethane which can be cross-linked with moisture. The so obtained composite laminar structure, having a thickness of from 0.1 to 10 mm, has a density of about 0.85 to 1.4 g/cm.sup.3, a hardness of 85 to 95 Shore A and a tensile strength of about 1.5 to 2.5 kg/mm.sup.2, and possesses a water-vapor permeability in the range of about 30 to 100 g/m.sup.2 /24 hours according to DIN 53 333.

Abstract: A temporary interlining composing a fabric base material and a continuous layer of a foamed adhesive provided on at least one of the surfaces thereof, which is prepared by coating said fabric base material uniformly and continuously with a foamed creamy aqueous solution of an adhesive and drying said solution, said foamed creamy aqueous solution having a viscosity of about 10,000 to about 200,000 c.p.s. at 50.degree. C. and the adhesive being soluble in water and becoming sticky on moistening. Said interlining, when heat and pressure are applied while and after being moistened, adheres to a dress material on the surface of said interlining; however, the adhesive can be washed off in a single washing operation.

Abstract: A contact fuser assembly for use in a electrostatic reproducing apparatus including an internally heated fuser roll structure comprising a rigid or non-deformable thermally conductive core capable of interacting with a release material applied thereto in such a manner as to form a thermally-stable interfacial coating intermediate the surface of the core and a release coating comprising portions of the release material. The interfacial coating strongly adheres to the core surface and prevents toner material from contacting the outer surface of the core. The combined coatings have a sub-micron thickness and therefore represent a minimal thermal barrier to the energy being conducted outwardly by the core.