Abstract: An electrostatic recording sheet comprising a support provided thereon a conductive layer and a dielectric layer, in this order, with the dielectrics layer containing polypropylene particles with a specified size distribution and exhibiting excellent moisture resistance and high transparency.

Abstract: A packaging material for photographic photosensitive materials which comprises a simultaneously coextruded multilayer film layer comprising a light-absorptive light-shielding thermoplastic resin layer containing low-pressure linear low-density polyethylene resin, 0.1 to 15 wt. % of carbon black and 0.01 to 1 wt. % of a lubricant and being located as the inner layer and a light-reflective light-shielding thermoplastic resin layer being located as the outer layer.This packaging material is superior in tear strength, impact puncture strength, Gelbo test strength, tensile strength, light-shielding, prevention of temperature elevation at the inside of package under sunlight, moistureproofness, heat resistance, discrimination of right side - reverse side under a safe light, slipping character, heat sealing properties and printability.

Abstract: A light-transmissive recording medium comprises a coating layer which has a surface electric resistance not more than 10.sup.14 .OMEGA./cm.sup.2, and has property of trapping a recording agent which is soluble and/or dispersible in an aqueous medium.

Abstract: A packaging material for photographic photosensitive materials which comprises a coextruded double layer film comprising a low-pressure linear low-density polyethylene resin layer located on heat sealing side and a polypropylene resin layer or a layer of a polyethylene resin of which density is 0.93 to 0.970 g/cm.sup.3 located on the other side, either of the above layers contains 0.5 to 30 g/m.sup.2 of metal powder or carbon black, and the above low-pressure linear low-density polyethylene resin layer contains 0.05 to 1% by weight of a lubricant.This packaging material is superior in tear strength, impact puncture strength, tensile strength, light-shielding, moisture proofing, slipping character and heat sealing ability. It is also suitable, for example, for packaging a small piece of photographic materials such as X-ray films for dental use.

Abstract: A heat transferable sheet which is to be used in combination with a heat transfer sheet, comprising (a) a substrate sheet and (b) a receptive layer formed on at least one surface of the substrate sheet for receiving dye which has migrated from said heat transfer sheet during heating printing, characterized in that said substrate sheet comprises a laminate having a synthetic paper laminated on at least one surface of a core material and said receptive layer is provided directly or over an intermediate layer on the surface of the substrate sheet on the side where the synthetic paper exists.

Abstract: A wrapping paper thermosensitive recording materials comprising a light-reflecting paper layer which is located as the outer surface layer and a light-shielding paper layer which is located on the inside therefrom and which is integrally combined with said light-reflecting paper layer.The wrapping paper of the invention shields from the external heat and light. When internal humidity is increased such as by heating of the package such as at higher than 50.degree. C., moisture passes through the wrapping paper to the outside. Accordingly, fogging by precoupling of the wrapped thermosensitive recording materials remarkably decreased, and quality of the recording material could be maintained for a long period during storage.

Abstract: A laminate providing an effective barrier to the migration of essential oils and/or flavorings, such as d-limonene and for the retention of Vitamin C, is provided comprising from the outer surface to the inner surface, a paperboard substrate, a web of nylon directly coated thereon, a web of Surlyn overlying and in contact with said nylon web and a web of olefin overlying and in contact with said Surlyn web. Preferably the paperboard substrate is also coated on the external surface thereof with a web of heat sealable polymer. Containers constructed from such laminates are especially useful as fruit juice containers which enable significant flavor and Vitamin C retention in the liquid i.e., fruit juice contained therein over the normal shelf life of the product.

Abstract: A conductive film-forming composition for use in the manufacture of electrostatic recording paper is provided. This composition comprises a copolymer of a diallylammonium halide derivative with a N-vinylacetamide derivative as an essential component. The conductive paper manufactured by coating or impregnating a substrate paper with this composition is of remarkably high practical value in terms of electrical conductivity, hardness, surface tackiness and solvent resistance.

Abstract: A dye-receiving element for thermal dye transfer comprising a resin-coated paper support having thereon a polymeric dye image-receiving layer, the resin coating having a surface roughness measurement of 7.5 Ra microinches-AA or less.

Abstract: A base material for use in making printed circuit boards is provided wherein minute fragments of expanded, porous polytetrafluoroethylene are uniformly mixed into another resin, and the mixture is compressed to form a composite board. In use, the board has an electrically conductive circuit affixed to at least one surface. The other resin may be epoxy, polyester or other similar resin. Laminates of such base board material affixed to a glass cloth or paper sheet may be prepared. The preferred fragment size range is 0.1 to 5 mm average diameter, and the preferred volume ratio of fragments to resin is 0.5 to 2.0.

Abstract: Improved release material including a paper substrate, and a layer of plastic film on one surface of the paper substrate, said layer of plastic film provided with an outer surface for substantially eliminating area contact between said layer of plastic film and material in engagement therewith; in a preferred embodiment the outer surface is an embossed surface which provides substantially line contact between said layer of plastic film and the material in engagement therewith.

Abstract: An electrostatic recording material comprising a substrate treated for low electric resistance and a dielectric layer formed on the substrate and composed of a composition comprising an insulating resin having a volume specific resistance of at least 10.sup.12 .OMEGA.cm and a powder of an acrylonitrile-type polymer having a copolymerized acrylonitrile content of at least 95% by weight and containing substantially no ionic groups, said powder having a volume average particle size of from 1.5 to 4 .mu.m and a content of particles having a size exceeding 8 .mu.m as measured by a particle size distribution measuring apparatus, being at most 0.02% by number.

Abstract: A dye-receiving element for thermal dye transfer comprises a support, such as polyethylene-coated paper or poly(ethylene terephthalate), having thereon a subbing layer of a vinylidene chloride copolymer and a polymeric dye image-receiving layer, such as a polycarbonate.Use of the subbing layer of the invention improves the adhesion of the dye image-receiving layer to the support.

Abstract: A coated ink jet printing substrate where said coating utilizes an insolubilized hydrophilic polymer.

Abstract: A photographic paper support material for photographic purposes is disclosed with a polyolefin coating on both sides, wherein the base paper is internally sized by using a hydrophobizing sizing agent, and is surface sized with an aqueous coating mixture. The aqueous coating mixture contains a carboxyl-modified polyvinyl alcohol and optionally includes compounds with polyvalent cations. The paper support material is preferably used with such photographic layers as require wet development and wet fixing of the photographic image with photographic processing solutions.

Abstract: Disclosed is a masking tape suitable for use in manufacturing a printed circuit board. The masking tape comprises a water soluble paper as a tape base material, and a water soluble adhesive agent applied to one side of the paper. A method of filling through-holes employing such a water soluble masking tape in a process of manufacturing a printed circuit board is also disclosed.

Abstract: Compositions and methods are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.

Abstract: The present invention relates to an improved container for citrus juices and other liquids. The container utilizes a paperboard barrier laminate for the containment of essential oils and the prevention of losses of Vitamin C. Also disclosed is a process of making the laminate. The laminate makes use of a layer of a heat-sealable ethylene vinyl alcohol copolymer to enhance the barrier properties of the laminate.

Abstract: A photographic printing paper support is described, comprising a base paper having a polyolefin layer formed on both surfaces thereof, said support having provided on a back surface thereof a writing property providing layer composed of (a) inorganic pigment having an average particle diameter from 0.1 to 2.0 .mu.m and oil absorption degree of 100 cc/100 g or less, and (b) an acrylic emulsion having a glass transition point of from 20.degree. C. to 50.degree. C.

Abstract: A photographic paper support made of a water-repellent sized base paper coated on both sides with a waterproof synthetic resin, and wherein the paper contains a combination of sizing substances including a water-repellent sizing agent, a cationic strengthening retention and binding agent and a sulfate or phosphate ester of a polysaccharide. The water-repellent sizing agent relative to the paper fiber content is about 0.2 to 2% by weight, the cationic strengthening and binding agent is greater in amount than about 1.5 of the water-repellent sizing agent, and the amount of the esterified polysaccharide is about 0.1 to 10% by weight relative to the fiber content.

Abstract: A photographic paper support comprising a base paper coated on both sides with a polyolefin resin is markedly improved in resistance to the stain occurring around the edges after development processing (edge stain), by the inclusion of an anionic polyacrylamide and a cationic starch in said base paper.

Abstract: A flexible, laminated packaging material comprising:(a) an external layer of paper;(b) a first internal layer of polyethylene affixed to the paper layer;(c) a second internal layer of metallic foil affixed to the polyethylene layer; and(d) an external, three component, co-extruded layer affixed to the metallic layer which includes a middle co-extrudate of high density polyethylene between outer co-extrudates formed from a blend of an ionomer resin with ethyl methacylate.

Abstract: Saturated paper products characterized by an excellent balance of toughness, strength, fold, tear and delamination resistance comprising a sheet of loosely bonded cellulose fibers saturated with an aqueous emulsion prepared by the emulsion polymerization of:(a) a vinyl ester of an alkanoic acid interpolymerized with:(b) 5 to 30% by weight of ethylene;(c) 0.5 to 6% by weight of an N-methylol containing copolymerizable monomer;(d) 1 to 5% by weight of an olefinically unsaturated carboxylic acid;(e) 0.2 to 3% by weight of a latex stabilizer; and(f) 0 to 1% by weight of at least one polyunsaturated copolymerizable monomer.

Abstract: Adhesive resins obtained by reacting 100 parts by weight of an epoxy-containing olefin polymer with 0.01-10 parts by weight of at least one ethylenically unsaturated fatty acid or derivative thereof, are described. The adhesive resins or olefin polymer compositions comprising the adhesive resins are particularly useful in lamination with other types of resins. Such laminates are also described.

Abstract: A photographic paper support having superior moisture resistance and graphic properties is provided. The support has formed on its back surface a graphic property-imparting layer. The layer is composed of (a) an inorganic pigment having a number average particle diameter of from 0.2 to 2.0 microns and an oil absorbing degree of not more than 100 cc/100 g and (b) a resin cured by irradiation with electron beams.

Abstract: A support of photographic paper one of whose surfaces is provided with a writing-retainable layer capable of retaining penciled characters, marks, ink, etc. The writing-retainable layer comprises crystalline silica having a number-average particle size of 0.1-3.0 .mu.m and a film-forming organic polymer.

Abstract: There is disclosed a substrate of layers of materials comprising fluoropolymer layers having sandwiched therein between a metal foil layer and a paper layer all suitably adhered to one another. It is also contemplated that the substrate be employed in fabricating a dentifrice tube.

Abstract: Wrapping materials for photographic materials comprising laminated layers of a paper support and at least one thermoplastic resin layer superposed on at least one surface of said paper support; said thermoplastic resin layer comprises a blended resin of (a) a high-density polyethylene having a density of 0.950 g/cm.sup.3 or more and a melt index of 10-40 and (b) a low-density polyethylene having a density of 0.930 g/cm.sup.3 or less and a melt index of 1-40, the weight ratio of (b)/(a) being 70/30-5/95, preferably 70/30-20/80, more preferably 60/40-40/60.At least one layer of said wrapping materials optionally comprises light-shielding substance in an amount of 1.0-30 g/m.sup.2.

Abstract: Polyolefin coated photographic base papers are stabilized by a polymeric hindered amine (Chimassorb 944) having a mean molecular weight above 2500. The stabilizer is highly effective and overcomes a diminution of opacity noted with the use of phosphonate esters of the prior art.

Abstract: Thermal imprinting for example of one or more surfaces, using a heat transfer carrier and a release layer of pigmented, low molecular weight polyolefin. The imprint is made by bringing the transfer layer into contact with the surface of an object and applying heat. This releases the transfer layer to the surface being imprinted. When the transfer layer is required to have any significant thickness, it desirably includes a low melting point wax or resin to provide flexibility. The release characteristic can be improved by the inclusion of a further crystalline wax layer between the transfer layer and the carrier.

Abstract: The invention relates to a label tape of successive individual labels which are to be appended to articles for sale and which are separated from one another by separating cuts extending transversely with respect to the tape length direction, said tape consisting of a carrier layer formed of polyethylene film and of a printable paper layer firmly bonded to said film.

Abstract: A transparentized paper with a caliper of between 0.001 and 0.015 inch and the process for its preparation is disclosed. A paper web is treated with a liquid mixture of polyesters, acid monoesters of polyols and dicarboxylic acids in non aqueous polaric solvents having admixed therein methylol derivatives of polyamino compounds, with or without a catalyst. The impregnated paper is cured by an in-situ cross-linking reaction immobilizing the impregnated material. A transparentized paper results which is resistant to water, most organic solvents and heat and is useful as tracing material as well as a translucent base for sensitizing with reprographic coatings. The transparentized paper is not resistant to alkali and can be repulped in alkaline medium for recycling. The transparentized paper also exhibits antistatic properties.

Abstract: A photographic base paper in which the resin coating contains a stabilizer of formula, ##STR1## wherein R.sup.1 is a sterically hindered hydroxyphenyl R.sup.2 is C.sub.1 -C.sub.12 alkyl, and x is 1 to 4, or a metal salt of the corresponding phosphonate anion.

Abstract: A multiple layer polymeric-based sheet structure is suitable for forming dispensing tubes. The abuse resistance of the tube is improved by incorporating in the sheet structure a layer of oriented polypropylene. A layer of linear low density polyethylene provides for heat sealing and has substantially improved stress crack resistance and resistance to generation of polydust.

Abstract: A wallcovering comprising a paper ply (13) and plastics ply (10) laminated together and embossed after lamination has materials of the plies chosen so that inherent expansion of the paper ply when wetted is substantially wholly restrained by high resistance of the plastics ply to stretching without taking the plastics ply beyond its elastic limit so that the wallcovering does not bubble or pucker when the paper ply is wetted. Materials suitable for the plastics ply are foamed polystyrene and orientated polypropylene. A degree of fissuring of the plastics ply during embossing is acceptable and can aid porosity for drying.

Abstract: An improved aqueous coating composition for the production of cast coated paper is disclosed. The pigment component of the coating contains at least 5% by weight of cubic calcium carbonate having a mean particle size of 0.1 to 1.0 micron. When this coating composition is used the operating speed of the cast coating process is remarkably improved and a cast coated paper having excellent whiteness, gloss and printability is obtained.

Abstract: A laminate providing an effective barrier to the migration of essential oils and/or flavorings, such as d-limonene, therethrough is provided comprising, from the outer surface to the inner surface, a paperboard substrate, a web of propylene polymer coated thereon and a web of olefin polymer overlying said propylene polymer web. Preferably the paperboard substrate is also coated on the external surface thereof with a web of heat sealable olefin polymer. Containers constructed from such laminates are especially useful as fruit juice containers which enable significant flavor retention in the fruit juice contained therein over the normal shelf life of the product.

Abstract: This invention provides an insulating paper sheet produced by mixing synthetic resin flakes with natural fibers to provide a composite paper mass. This insulating paper sheet is favorably accepted as an insulating member for covering the conductor of a power cable.

Abstract: Disclosed is a drafting film which comprises a plastic base provided on at least one surface with an adhesive layer and a pigmented coating system which comprises a pigmented layer and a top layer or a pigmented layer alone. In particular, the pigmented coating system comprises an acrylate or methacrylate copolymer comprising at least 50 percent by weight of an ester monomer, the alcohol component of which has a chain length of at least four carbon atoms, an antistatic agent comprising a polymeric sulfonic acid salt in combination with homopolymers or copolymers of vinyl acetate, or partially hydrolyzed polyvinyl acetate, cross-linking agents and delusterants. Also disclosed is the use of the drafting film for producing diazo sensitized film.

Abstract: Composite sheets comprising a layer of cellulosic fibers and a layer adjacent thereto consisting in whole or in part of thermoplastic fibers are made to adhere by superimposing the sheets on the side of the cellulosic fibers layer and by inserting between such layers a film of a thermoplastic polymer having:(a) a melting temperature lower than the melting temperature of the polymer forming the thermoplastic synthetic fibres contained in the layer adjacent to the cellulosic layer, intended for the adhesion, of the composite sheet;(b) a viscosity in the molten state--measured in a capillary viscosimeter, at a velocity gradient equal to or lower than 10.sup.-1 seconds, and at a temperature comprised between a temperature higher by 10.degree. C. than the melting temperature of such polymer and a temperature higher by 20.degree. C. than the melting temperature of the abovesaid thermoplastic fibres--lower than 1.multidot.10.sup.8 poises, and preferably lower than 1.multidot.10.sup.

Abstract: A metal-clad laminate comprising a base plate composed of a plurality of electrically insulating material layers and a metal foil or foils laminated on one side or both sides of the base plate, characterized in that to at least the metal foil or foils is laminated an electrically insulating material layer composed of a silane-modified polyethylene resin sheet, that to the silane-modified polyethylene resin is laminated an electrically insulating material layer made of a paper or cloth containing an epoxy resin and/or a silanol condensation catalyst, and that the layer made of a paper or cloth contains 5 to 35% by weight of an epoxy resin and/or that to the layer made of a paper or cloth is laminated an electrically insulating material layer other than the above-mentioned two layers. Said metal-clad laminate has excellent characteristics such as low, .epsilon., low tan .delta. and excellent moisture-resistant insulating property.

Abstract: A heat transfer sheeting combination of the type for being applied to an article 10 to imprint a design thereon including a substrate 12, a design coating disposed on the substrate 12 and an adhesive layer 22 disposed on the design coating for adhesively securing the design coating to the article 10. The combination is characterized by the substrate 12 including a releasing agent coat 32 disposed between the design coating and the substrate 12 for facilitating the removal of the substrate 12 from the design coating after the application thereof onto the article 10.

Abstract: The present invention is a sulfur stabilized composition. The composition comprises an oxidized polyolefin, preferably oxidized polyethylene or oxidized polypropylene, with oxidized polyethylene being most preferred. The composition of the present invention can comprise oxidized polyolefin, asphalt, preferably oxidized, and optionally a filler.

Abstract: Composite structures comprising one or more substrates and an adhesive blend adhered thereto. The blend is strongly adhesive to various substrates and especially to various polar substrates. The blend comprises a blend of a graft copolymer of a linear low density polyethylene backbone grafted with at least one grafting monomer which is one or more polymerizable ethylenically unsaturated carboxylic acids or anhydrides thereof, blended with a polyolefin blending resin. The disclosure also includes methods of adhering the blend to one or more substrates.

Abstract: Composite structures comprising one or more substrates and an adhesive blend comprising blends of a non-elastomeric graft copolymer of a non-polar ethylene homopolymer or copolymer backbone grafted with at least one grafting monomer comprising one or more of polymerizable ethylenically unsaturated carboxylic acids or the anhydrides of such acids blended with an elastomer-free blending resin that is a mixture of one or more linear low density polyethylenes and one or more polypropylenes.

Abstract: A highly efficient formaldehyde-free coating composition insolubilizer is prepared by reacting about 3 moles of glyoxal with 1 mole of urea resulting in a formation of a low molecular weight oligomer in a yield of 95-96%. The molar ratio of glyoxal to urea is very critical in obtaining the highest efficiency and is kept within narrow limits. The coating compositions of the present invention possess 2 till 4 times higher wet-rub resistance than the prior art compositions.

Abstract: Disclosed are novel organic pigments adapted particularly for use as fillers for paper. The organic pigments are finely divided particles obtained by graft copolymerizing an ethylenically unsaturated monomer, such as styrene, onto a water-soluble cationic prepolymer in an aqueous solution and in the presence of a free-radical polymerization initiator.

Abstract: A paper coating composition is described, containing a pigment and an aqueous binder as major components, and further containing a mixture of a reaction product between (a) at least one alkylenediamine or polyalkylenepolyamine and (b) epihalohydrin, and (Y) a water-soluble resin obtained by reacting urea, polyalkylenepolyamine, and dibasic carboxylic acid and reacting the resulting polyamidopolyurea with formaldehyde, or containing these reaction products.

Abstract: A non-slip place mat is disclosed which comprises a web such as a paper sheet, and a composition coating comprising a blend of water, a water-soluble salt, a wax and a polymeric material, which both coats and impregnates the web, e.g. the paper sheet, whereby said sheet is rendered substantially hydrophobic and it and items placed on it are rendered substantially slip-resistant when resting on a tray or table which may be subject to sudden movement. The non-slip place mat is particularly useful for airline serving trays. The present place mat is characterized by the provision of a generally rectangular planar flexible web, which is indented along two opposed edges. The web is multi-layered, i.e. coated, and the four corners of the web are rounded off, so that each corner is defined by a curved periphery. A plurality of place mats in a roll and arrayed in tandem, i.e.

Abstract: A laminated lidding material suitable for use on cups of high density polyethylene and/or polypropylene comprises (1) as the bottom layer, a co-extruded layer of ethylene methyl acrylate and low density polyethylene resin, (2) a primer layer, preferably of polyurethane, (3) a layer of polyester, nylon, polypropylene or metallic foil, (4) a layer of low density polyethylene resin, and (5) a top layer of metallic foil, preferably aluminum foil. Lids prepared from this material can be adhered to the tops of high density polyethylene and/or polypropylene cups, and have sufficient strength so that they do not tear on removal.