Abstract: Procedure for the production of magnetic plastic laminate in which at least one of the paper fiber sheets impregnated with phenolic and melaminic resins, is first of all spread, using the silk screen process, with a cloth with a weave of from 9 to 24 threads per cm.sup.2, with a ferrous powder based paste with a percentage comprised of between 55%-80% and a binder with a percentage comprised of between 45%-20%; after drying the percentage of ferrous powders is comprised of between 75%-80%, the thickness of the paste of between 0.5 and 2.0 mm and the plastic laminate thus obtained is permanently magnetized through an electric charge thanks to the presence of the ferrous powders inside it.

Abstract: A thermosetting resin decorative laminated sheet faced with a resin-impregnated sheet layer obtained by impregnating a sheetlike material with a resin composition containing an amino resin (I) produced by the reaction of formaldehyde with an amino compound (A) having as an essential component thereof at least one carboguanamine (a) selected from the group consisting of cyclohexanecarboguanamine and norbornanecarboguanamine and curing the resultant impregnated sheetlike material excels in flexibility, crack resistance, light resistance, and chemical resistance. A decorative overlaid plywood enjoying similarly desirable properties is obtained by integrating the aforementioned sheet layer with a substrate.

Abstract: Described is a titanium dioxide-containing resin saturable paper sheet in which from about 5 to about 40 weight percent of the titanium dioxide filler is replaced with amorphous precipitated silica having an essentially neutral to slightly alkaline, e.g., 6.5 to 8.5, pH and a medium agglomerate particle size of less than 30 micrometers, e.g., 3 to 10 micrometers. The BET surface area of the silica may vary from about 25 to about 200 m.sup.2 /g, e.g., 50 to 100 m.sup.2 /g. Also described are decorative laminates in which the core of the laminate contains at least one of such saturable paper sheets.

Abstract: A decorative laminate comprising a plurality of consolidated resin impregnated fiberous sheets, at least one of said sheets being formed from bleached cellulose fibers, titanium dioxide and/or a pearl pigment.

Abstract: Decorative laminate having improved resistance against marring, abrasion, staining and crocking, and method for the preparation thereof, the laminate comprising a substrate and a decorative sheet, the decorative sheet having on the exposed surface a layer consisting essentially of a thermoset resin, substantially fully hydrolyzed polyvinyl alcohol, fumed amorphous silica, and particulate abrasive material having a hardness higher than that of silica. Abrasion resistance greater than 3000 cycles (NEMA Wear) by the NEMA test LD 3-3.01 is obtained in combination with improved mar resistance.

Abstract: A high pressure laminate comprising a plurality of heat molded sheets impregnated with duromeric synthetic resins characterized in that several of these sheets form on at least one surface of the laminate a heat-shapable surface layer (2,3) while the remaining sheets form a non-heat-shapable region which includes a core layer of the laminate.

Abstract: A composite tape for forming at least part of the insulation of a high voltage electrical cable, particularly an oil-filled cable, and a cable including such insulating tape. The composite tape includes at least one layer of paper tape having a borate or silicate weight content in the range form 0.1 to 3% of the weight of the paper bonded to at least one surface or the surfaces of a film of bi-oriented polymeric plastic material by a copolymer layer which has a thickness of from about 1-10 microns. The thickness of all the plastic material in the composite tape is in the range from 10 to 30% of the total thickness of the tape. Preferred polymeric materials are polypropylene and polymethylpentene. A bonding material can be propylene-ethylene copolymer.

Abstract: A binder composition is disclosed, which comprises:(A) a copolymer emulsion which contains as its essential ingredients vinyl acetate, ethylene, and a monomer represented by the formula (1): ##STR1## wherein R.sub.1 is H or CH.sub.3 ; and R.sub.2 is H or an alkyl group having not more than 5 carbon atoms, the proportions of the respective ingredients being within the range of 55-96.5/3-40/0.5-5 on a weight basis;(B) a formaldehyde-free nitrogen-containing glyoxal resin;(C) a metal salt catalyst; and optionally(D) a higher alcohol sulfuric acid ester-based surfactant.Nonwoven fabrics and impregnated papers using the binder composition are also disclosed. The binder composition exhibits not only high resistance to water and solvents but also low residual free formaldehyde level, with an improvement in foamability being optionally attainable.

Abstract: Crossbanding of veneered or laminated panels with vulcanized fiber sheets that can be of multiple thin plies vulcanized together and colored. The finished vulcanized fiber crossband sheets have both surfaces coated with adhesive adherently dried in place so that they can be very simply assembled with the remaining panel constituents and hot pressed to produce desired panel.

Abstract: The invention relates to a composition of matter comprising an ammoniated urea-formaldehyde resin and a water soluble dried urea-formaldehyde resin powder wherein the ratio of ammoniated to dried urea-formaldehyde resins is from approximately 20:1 to 1:20 weight. A process for adhering paper to a lignocellulosic substrate using the composition of matter is provided. By this invention, high solids, shelf stable adhesive compositions containing low levels of free formaldehyde are provided which, when catalyzed, will cure under heat and/or pressure, to adhere decorative paper to a lignocellulosic substrate.

Abstract: A thermosetting size applyable to paper in a size press and curable at a temperature not in excess of about 280.degree. F. for 10 seconds is disclosed. This size comprises an aqueous emulsion comprising water having suspended therein aqueous emulsion copolymer particles of monoethylenically unsaturated monomers comprising hydroxy-functional monomer having an hydroxy number of at least about 20, and the balance of the monomers provides a water insoluble polymer having a glass transition temperature of from about -20.degree. C. to about 50.degree. C. The emulsion has a pH greater than about 2.5, preferably from 4.0 to 7.0, and a stoichiometric deficiency of an aminoplast cross-linking agent is used for cure. An acid curing catalyst is uniformly distributed in the size to speed the cure.

Abstract: A static dissipative laminate having a resistivity on the order of 10.sup.6 to 10.sup.9 ohms/square and a surface resistance in the static dissipative range even at very low humidities is produced by adding to the melamine resin for the decor sheet a small amount of ionic salt and a small amount of an aliphatic tertiary amine or glycerin which is believed to function as a humectant. The core sheets are formed of carbon filled paper impregnated with a phenolic resin containing a small amount of ionic salt.

Abstract: A coating composition for coated front copy papers comprises pre-treated carboxylated soybean protein, pigment, binder, phenolic resin, and defoamer. In a preferred embodiment, the carboxylated soybean protein is pre-treated by the steps of:(a) adding carboxylated soybean protein to water in a mixer,(b) continuing mixing to achieve an even dispersion,(c) heating the dispersion to a temperature of 58.degree.-65.degree. C. while continuing mixing,(d) adding sufficient ammonia solution to neutralize the carboxylic acid groups in the protein, and(e) maintaining the temperature in the range 58.degree.-65.degree. C. until the reaction is complete as indicated by pH, or by complete dissolution of the protein, and(f) adding defoamer and mixing by gentle agitation.A method for coating paper is also claimed.

Abstract: A heat and pressure consolidated laminate made with a plurality of core sheets impregnated with an unsaturated polyester treating solution, the polyester providing the laminate with improved flexibility and enabling a core color that matches the color of the decor or face sheet.

Abstract: A decorative, high pressure, conductive laminate for flooring material is formed of a plurality of phenolic impregnated carbon-containing core sheets, a melamine resin impregnated decor sheet containing about 3-5% carbon fibers having a length greater than 1/16 inch and preferably 1/8 inch or more, and a melamine resin impregnated abrasion resistant overlay. The overlay melamine resin also contains an ionic salt and a tertiary aliphatic amine, both also preferably being in the decor melamine as well. The laminate has a volume resistance of 2.5.times.10.sup.4 to about 10.sup.6 ohms. To make the product more dimensionally stable, carbon containing core sheets are interleaved with non-carbon-containing kraft sheets, the phenolic resin of which also contains ionic salt.

Abstract: A paper size having the ability to be prepared under low shear conditions and having sizing properties superior to the sizes of the prior art may be prepared comprising water and 0.1 to 15% by weight of at least one hydrophobic sizing agent and 0.4 to 30% by weight of a jet cooked dispersion of a long chain alkyl derivative of starch or a dispersion of a corresponding gum derivative.

Abstract: An improved process of making abrasion-resistant decorative laminate without overlay comprises simultaneously impregnating and coating a laminate decor sheet with a mixture of the liquid impregnating resin and an abrasion-resistant composition of microcrystalline cellulose and abrasion-resistant mineral particles such as alumina. The microcrystalline cellulose functions not only as a binder material in the product, but also serves to maintain the mineral particles in suspension in the liquid resin. The mixture is deposited onto the top surface of the decor sheet which absorbs the liquid resin leaving on the upper surface thereof an ultra-thin layer of the abrasion-resistant composition plus a small amount of resin. After drying, the decor sheet is ready for use in the manufacture of high and low pressure decorative laminates.

Abstract: Melamine resins modified with a mixture of a polyalkylene glycol and an alkylated methylolmelamine, paper sheets impregnated therewith, decorative laminates prepared from said sheets and a method of producing said laminates are disclosed.

Abstract: A fire retardant composition in a stable liquid form comprises the reaction product of an aqueous aldehyde, preferably formaldehyde, solution, at least one alcohol solvent, an alkanolamine, an organic catalyst, ammonium hydroxide, urea and an aqueous phosphoric acid solution. The aldehyde and urea are included in an approximately 1:1 weight ratio. A method of forming the reaction product comprises adding urea to a mixture of aldehyde, alcohol, alkanolamine, organic catalyst and ammonium hydroxide, and heating the resultant mixture to at least 150.degree. F.

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: Polyester resins are disclosed as the impregnant in the core sheets of heat and pressure consolidated laminates, especially decorative laminates having a core of a color complementing that of the decor sheet, and more especially those decorative laminates of unusual thickness.

Abstract: Uniformly impregnated liner and medium for making corrugated board are prepared by using a urea-aldehyde impregnating composition to impregnate board in-line and a process where the coated board is treated with an aqueous primer and fully cured to provide board having resin free surfaces.

Abstract: A one-faced or double-faced release sheet presenting an adequate barrier against coating solutions of release agent, good adhesion to release agents, high heat resistance and minimum heat shrinkage comprising a support sheet having a release layer formed on at least one side thereof with an undercoated layer being disposed between said support sheet and the release layer, said undercoated layer being formed from a mixture of a soap-free type acrylic resin emulsion and oxidized starch.

Abstract: There is disclosed a substrate of layers of materials comprising acetal polymer 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: A fibrous sheet material suitable for use in a high-pressure laminate of improved electrical conductivity, which fibrous sheet material comprises a dried paper sheet material saturated with a heat-curable thermoset resin, and an electrically conductive amount of a quaternary ammonium compound.

Abstract: A recording sheet for thermal dye-transfer type recording method, having a coating layer which is placed on a substrate, is contacted with a coloring material layer containing sublimable dye and on which the dye is transferred by heating. The coating layer includes as a pigment precipitated calcium carbonate of at least 25,000 cm.sup.2 /g specific-surface-area and as a binder saturated polyester or a mixture of saturated polyester with polyvinyl pyrrolidone. The sheet provides a clear record with superior color density.

Abstract: Fire retardant compositions in the form of a powder are produced from the following components:______________________________________ Component Parts by Weight ______________________________________ Aldehyde 70-140 Ammonium phosphate 50-250 Ammonium, alkali metal or 50-250 alkaline earth metal compound or salt Urea reactant 70-190 Hydroxy reactant 20-60 Phosphoric acid 150-250 ______________________________________Also provided are retardant compositions containing the powder and methods for treating substrates, such as paper or wood, as well as cotton, wool, and synthetic textiles to impart fire retardant properties thereto.

Abstract: A carrier web coated with amino resin wherein at least one surface is resinated is produced by applying a spreadable amino resin dispersion containing 70-90% by weight of amino resin and 30-10% by weight of a liquid dispersant to at least one surface of an uncoated carrier web in an apparatus comprising:(a) unwinding station for unwinding uncoated carrier webs from rotatable supply rolls,(b) means for conveying the uncoated webs comprising a plurality of cooperating pressure rolls rotatably mounted in parallel relationship,(c) a coating means for applying a brushable amino resin dispersion to the web, and(d) a belt press for compression-molding and curing the coated web.

Abstract: Polymethylol ketones are disclosed as ingredients in various resins which find use as the resin component of heat and pressure consolidated laminates, especially decorative laminates having a core of a color complementing that of the decor sheet.

Abstract: A conductive laminate product capable of dissipating static charges and adapted for use on vertical and horizontal surfaces. The laminate product is formed of a thin, hard layer of plastic material, a thin layer of metallic foil which is electrically conducted, bonded to the top layer by way of an electrically conducted adhesive material and a layer of backing material secured to the metallic foil.

Abstract: Decorative laminates and a method for their production are disclosed, the laminates having dispersed in their uppermost surface hard mineral particles whereby mar-resistance is imparted to the laminate.

Abstract: A prepreg useful in flame resistant copper clad printed circuit boards is made by impregnating a porous substrate with an impregnant containing: either a prebrominated epoxy resin or a mixture of a non-halogenated epoxy resin and flame retarding additive containing bromine, and phenolic hydroxyl groups. A phenolic novolac oligomer having an average of over 2.5 phenolic hydroxyl groups per oligomeric unit is used as curing agent. Optionally, a suitable catalyst may be included. The impregnated substrate is heated to cure or advance the resin to the "B"-stage.

Abstract: A visible index and components therefor including index strip supports of simplified and rugged construction and several forms of replaceable strips which may or may not be preprinted and which can, at least in most cases, be produced at a lower cost than previously patented index strips. The index strips are of multi-ply construction. Assemblages of the index strips and backing members from which the strips can be easily and cleanly separated. The assemblages may be designed to facilitate the mechanical printing of wanted information on the index strips before they are separated.

Abstract: A recording sheet for thermal dye-transfer type recording having a coating layer which is placed on a substrate, which is contacted with a coloring material layer containing sublimable dye and on which the sublimable dye is transferred by heating, wherein the coating layer includes an aminoalkyd resin, whereby the recording sheet provides a record with superior color density and causes no heat-adhesion between the recording sheet and a thermal transfer substrate.

Abstract: An easily stackable, heat-radiant, self-supported, rigid, high-pressure, decorative paper base laminate panel having numerous applications is disclosed. The panel comprises a heat-radiant porous fabric including electrically conductive strips. The fabric is sandwiched between a plurality of sheets of paper which have been impregnated with suitable thermosetting resins as to form a unitary decorative panel upon heat-pressing. However, the sheets next to the fabric, are treated with an excess of resin. The thickness and the distribution of the papers in the laminate are all important. When a suitable voltage is applied through the conductive strips the decorative panel radiates heat.

Abstract: A decorative laminate comprising a core of at least one sheet of saturating kraft paper impregnated with a blend of a phenol/formaldehyde resin and a cross-linked, acrylic copolymer and optionally, a melamine/formaldehyde resin, and a decor sheet impregnated with (1) a first blend of a melamine/formaldehyde resin and a cross-linked, acrylic copolymer and (2) a second blend of a melamine/formaldehyde resin and an abrasive material, and a method for the production thereof, are disclosed.

Abstract: Sheet products are made from amino-aldehyde, e.g. urea-formaldehyde, resin fibres in admixture with other non-cellulosic fibres, e.g. glass fibres, and optionally cellulosic fibres. Multiply products may be made from plies having the above constitution and plies of, for example, amino-aldehyde resin fibres, alone or in admixture with cellulosic and/or non-cellulosic fibres. The paper-like sheet materials may be used e.g. as filter papers.Laminated products may be made by pressing at an elevated temperature, a stack of plies of paper made from a mixture of amino-aldehyde resin fibres and another fibrous material, e.g. cellulosic fibres.

Abstract: An electrically conductive laminate which provides a non-instantaneous controlled rate of static dissipation is disclosed, said laminate containing, in at least the overlay or decor layer thereof, a water-soluble, alkali metal salt.

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: Fire retardant compositions in the form of a powder are produced from the following components:______________________________________ Component Parts by Weight ______________________________________ Aldehyde 70-110 Ammonium phosphate 120-180 Ammonium sulfate 120-180 Urea 120-180 Alkanolamine 35-50 Phosphoric acid 100-150 ______________________________________Also provided are fire retardant compositions containing the powder, and methods for treating substrates such as paper or wood to impart fire retardant properties thereto.

Abstract: A new and improved structural material comprising an interpenetrating plastic and substrate network material composite including two phases, a first phase comprising a substrate of paper or paper-like material or other fibrous or absorbent material defining a fibrous network phase, 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 composite is formed by saturation and in situ polymerization from a solvolysis system. The composite material is further incorporated in a monolithic laminar structure by application of layers of the solvolysis adjusted for sufficient agglomerating and aggregative characteristics to form plastic weldments or fillets at intersections of the substrate portions.

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 pigment of TiO.sub.2 particles coated with alumina, whose particle surfaces have associated with them cerium cations and sulfate-, phosphate or silicate anions, can be used to prepare paper laminates having a high degree of lightfastness.

Abstract: A pigment of TiO.sub.2 particles coated with alumina and having associated therewith fluoride ions or fluoride compounds, can be used to prepare paper laminates having a high degree of lightfastness.

Abstract: A panel suitable as a bowling lane surface comprising a melamine impregnated protective layer bonded under heat and pressure to a hardboard substrate. The melamine impregnated protective layer is comprised of one or more melamine resin impregnated decorative fibrous print sheets. The surface of the bowling lane so produced is characterized by a falling ball impact resistance of at least 60 inches, a wear rate of between about 0.02 and 0.05 and a Taber abrasion resistance at least about 400 cycles.

Abstract: A static-dissipating, synthetic surface-covering sheet laminate material which comprises a plurality of cured, resin-saturated paper sheet materials laminated together under heat and pressure, and which includes a resin-saturated and cured top sheet material having an electrically conductive amount of a polyalkylene glycol, to provide a surface resistivity of the sheet laminate material of about 100 ohms per square inch or less, when tested in accordance with ASTM-0257.

Abstract: A static-dissipating conductive synthetic surface-covering highpressure sheet laminate material which comprises a plurality of cured, resin-saturated paper sheet materials laminated together under heat and pressure, and which includes a resin-saturated cured top sheet material having an electrically conductive amount of a quaternary ammonium compound to provide a surface resistivity of the sheet laminate material of about 10.sup.9 ohms per square inch or less, when tested in accordance with ASTM-D257.

Abstract: A flame-retarded speaker diaphragm is prepared by making a cone from cellulose fibers, impregnating the cellulosic cone with a solution of a trimethylol melamine monomer, an organic phosphorus- and nitrogen-containing compound, and a trialkyl amine catalyst in an alcohol solvent, and heating the impregnated cone until the solvent is removed and the melamine resin is cured. Flame retardancy is imparted to the cellulose cone-shaped diaphragm without the sacrifice of its frequency response.

Abstract: Hydroxyalkylmelamines are disclosed as ingredients in various resins which find use as the resin component of heat and pressure consolidated laminates, especially decorative laminates having either post-formability or a core having a color matching that of the decor sheet.

Abstract: A pigment of TiO.sub.2 particles coated with alumina, whose particle surfaces have associated with them cerium cations and sulfate-, phosphate or silicate anions, can be used to prepare paper laminates having a high degree of lightfastness.