Abstract: A decorative laminate includes a decorative layer and a core layer. The decorative layer is composed of a resin impregnated decorative sheet. The core layer is composed of at least one resin impregnated sheet of core paper. The core paper is impregnated with a resin composed of phenol formaldehyde resin and wood molasses. In this manner, a substantial portion of the resin used to impregnate the core paper is replaced with wood molasses, which results in a reduction of the cost of manufacturing the decorative laminate. The decorative laminate is manufactured by preparing a resin impregnated decorative sheet and preparing at least one resin impregnated core sheet by impregnating a core sheet with a resin composition composed of phenol formaldehyde resin and wood molasses. The decorative sheet and the core sheet are then layered to form a laminate lay-up that is heated and pressed to consolidate and cure the laminate.

Abstract: A sheet of cellulose based material having enhanced strength, particularly the dry strength, substantially unaffected repulpability is disclosed. The sheet of cellulose based materials generally includes a first cellulose based material connected with a second cellulose base material element. The first cellulose based material is formed by separating a portion of the fiber from a furnish, treating the separated portion with a cationic wet strength resin which is allowed to bond to the fiber. The treated fiber is them mixed with the untreated balance of the fiber at some point before the paper machine. The fiber that is separated may be secondary fiber, virgin fiber or combinations thereof. The second cellulose base material element is substantially free from any treatment. The second cellulose base material element may be include substantially all untreated fibers.

Abstract: The invention relates to a veneered panel (1) having a supporting panel (2) and a veneer which is joined to at least one surface of the supporting panel (2). An overlay (4) is provided on the side of the veneer (3) facing away from the supporting plate.

Abstract: A laminate having electromagnetic shielding properties, said laminate including two or more layers adhered together with resin under application of heat and pressure, wherein at least one of said layers includes a substrate having deposited thereon a metal-containing coating. The invention is also a method of manufacturing a laminate having electromagnetic shielding properties including the steps: (a) depositing a metal-containing coating onto a substrate to form a metal coated substrate, (b) incorporating said metal coated substrate into a laminate assembly having 10 at least one other layer, (c) adhering said metal coated substrate to said at least one other layer using a curable resin to form an adhered laminate assembly, and (d) subjecting said adhered laminate assembly to heat and pressure to cure said resin and thereby form said laminate.

Abstract: A thin abrasion resistant decorative thermosetting laminate of postforming quality is glued to a longitudinal carrier. The carrier preferably consists of a fibre board or a particle board with a rectangular cross section and at least two opposite rounded-off edges. One or more floor strips with the same or different cross section is machined from the laminate clad carrier.

Abstract: The present disclosure involves a covering element for building surfaces and a method for the production thereof. The covering element includes a decorative visible side generally having a support plate having top and bottom surfaces, an upper transparent face sheet bonded to the top surface of the support plate, and a lower face sheet bonded to the bottom surface of the support plate. The upper face sheet has a support layer having cellulose in which an abrasion-resistant material is embedded in the form of corundum particles. In the present configuration, a decorative layer is applied to the bottom of the support layer by a color printing process. The decorative layer, which is underneath the support layer, is visible after all the layers have been pressed together under the application of heat. This process causes it to become transparent. The support layer and the decorative layer are covered with bonding material having melamine resin.

Abstract: A thin abrasion resistant decorative thermosetting laminate of postforming quality is glued to a longitudinal carrier. The carrier preferably consists of a fiberboard or a particle board with a rectangular cross section and at least two opposite rounded-off edges. One or more floor strips with the same or different cross section is machined from the laminate clad carrier.

Abstract: The preparation of composites using epoxy-functional silicones as additives to phenolic resole resins.

Abstract: The invention relates to an improvement in the art of making saturating kraft paper. In particular, the invention relates to a method for enhancing the fire-retardancy of saturating kraft paper containing alumina trihydrate and phenolic resin by including sodium borate into the paper. The improved saturating kraft is particularly useful in the production of fire-retardant high-pressure laminated materials.

Abstract: A film suitable for continuous application to particle boards in the making of laminated particle board is disclosed, which film is stem penetrable and impregnated with semi-cured impregnating resins and provided with a partially cured layer of glue on one side and a fully cured lacquer layer on the other side, which film is permeable to gases generated during production of laminated particle board. A process for producing such a film is also disclosed and also a method for producing a laminated particle board by means of a continuous direct lamination process.

Abstract: The invention relates to a surface sheet produced by the papermaking method used in the production of abrasion-resistant laminates comprising glass wool fibers. According to the invention, the sheet comprises, before impregnation with thermosetting resin, up to about 7% by dry weight of glass wool fibers with respect to its total dry weight. The invention finds an application as protective covering sheet called overlay and as decorative sheet.

Abstract: This invention is directed to a high pressure process for preparing a laminate structure comprised of a fiber cementboard core having laminated to at least one surface thereof at least one intermediate resin impregnated paper sheet or lamina and a decorative resin impregnated paper sheet or lamina. The process comprises forming an assembly comprised of a fiber cementboard core having superimposed on at least one surface thereof at least one intermediate resin impregnated paper sheet and a decorative resin impregnated paper sheet, and subjecting said assembly to a temperature of at least about 100.degree. C. and a pressure of at least about 500 psi for a time effective to laminate said assembly.

Abstract: An intumescent fire-resistant coating and a fire-resistant material using the same are disclosed, the coating essentially including (A) at least one inorganic compound selected from the group consisting of a carbide, boride, nitride, carbonitride, or carboboride of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, tungsten, silicon or chromium and a carbide, nitride or carbonitride of boron, (B) a synthetic resin, and (C) at least one phosphorus and/or sulfur compound capable of forming a Lewis acid on heating.

Abstract: A method for protecting against duplication of a document with a color copier comprises providing a background color on a document having an average reflectance value and printing on the background with a contrast color having a spectral characteristic which modulates the average reflectance value by no more than 5% and has an average value equal to the average reflectance value. The contrast color is printed with a printing medium that allows activation by a rub and reveal action or by application of intense light.

Abstract: A method for protecting against duplication of a document with a color copier and a security substrate comprises providing a background color on a document having an average reflectance value and printing on the background with a contrast color having a spectral characteristic which modulates the average reflectance value by no more than 5% and has an average value equal to the average reflectance value. The contrast color is printed with a printing medium including one of a colorformer leucodye and an activating phenolic resin. The other of the colorformer leucodye and the activating phenolic resin is to the printing medium on the document later to verify that the document is an original.

Abstract: Decorative laminates which provide a decorative effect similar to that of marble or synthetic marble are achieved by constructing the core from sheets having a very low opacity. These sheets are prepared from bleached Kraft pulp and do not contain titanium dioxide or other opacifying pigments. The core sheets are saturated with resins such as melamine formaldehyde, polyester or epoxy resin. These saturating resins approximately match the refractive index of the bleached Kraft pulp and provide a translucent effect. Core sheets may be assembled with conventional decor sheets and an abrasion-resistant overlay to provide decorative laminates. Due to the translucent nature of the core, the color of the decor sheets is shown throughout the thickness of the laminate. This results in a uniquely decorative edge.

Abstract: Herein disclosed are a method for preparing an aqueous developer dispersion which comprises the steps of dissolving, in an organic solvent, a developer which comprises a nuclear-substituted salicylic acid salt represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be the same or different and each represents a hydrogen atom, a halogen atom, an alkyl group having not more than 15 carbon atoms, a cycloalkyl group, a phenyl group, a nuclear-substituted phenyl group, an aralkyl group or a nculear-substituted aralkyl group, or two adjacent groups selected from R.sub.1 to R.sub.

Abstract: Abrasion-resistant overlay and multiple layer decor paper sheets suitable for the production of decorative laminates are disclosed comprising an agglomerated abrasion-resistant amorphous silica powder. These overlays and decor sheets reduce caul plate scratching during lamination.

Abstract: A thermally curable polymer thick film compositions comprising, by weight:(a) about 3--15 parts of at least one poly(hydroxystyrene) resin;(b) a crosslinking resin selected from the group consisting of:(i) about 5-25 parts of at least one blocked isocyanate resin; or(ii) about 2-10 parts of at least one melamineformaldehyde resin;(c) an effective amount of at least one organic solvent capable of substantially dissolving (a) and (b) ingredients;(d) conductive particulate matter selected from the group consisting of:(i) about 50-80 parts silver flake;(ii) a graphite/carbon black mixture consisting of:(aa) about 15-45 parts graphite; and(bb) about 1-10 parts carbon black; or(iii) a mixture of (i) and (ii).

Abstract: An improved method for providing a smooth, abrasion resistant surface substantially free of surface irregularities on a solid substrate possessing surface irregularities, the method comprising the steps of: (a) forming an uncured and unbonded laminate overlay of at least two sheets of cellulose impregnated with a thermosettable resin; (b) substantially curing the thermosettable resin to form a laminate overlay that is both precured and bonded; and (c) adhering the precured bonded laminate overlay to a solid substrate possessing surface irregularities so as to substantially bridge the irregularities. The method has particular application to the manufacture of concrete forms.

Abstract: A translucent and variegated resin impregnated decorative paper laminate having the visual three-dimensional effect of depth and to a method of manufacturing the same which comprises laminating a plurality of highly absorbent, transparent paper sheets impregnated with a resin under heat and pressure sufficient to form a unified and stratified laminate.

Abstract: A decorative thermosetting laminate with an extremely increased abrasion resistance comprising a base layer and at least two patterned decor sheets of paper impregnated with a thermosetting resin and firmly bonded to the base layer. The paper material of these decor sheets is transparent. These sheets are provided with the same pattern and placed on top of each other in such a manner that the corresponding parts of the pattern of the sheets coincide at least mainly but preferably fully with each other, whereby the pattern at abrasion of one decor sheet will be repeated in the next decor sheet.

Abstract: A process for the preparation of a phenolic resin which comprises reacting a phenol with a peroxidase or an oxidase enzyme and a peroxide in an organic solvent containing medium to generate phenolic radicals which react to form a phenolic resin.

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 heat shapable resin laminate sheet, composed of several heat-bonded support webs impregnated with duroplastic binders, the deformation temperature to be utilized in shaping the laminate sheet being higher than the temperature utilized in molding it, which comprises a number of individual laminations, each of which is formed separately of one or more support webs impregnated with duroplastic binders and layers of thermoplastic binders arranged between the individual laminations, the melting point temperatures of the thermoplastic binders being equal to or lower than the deformation temperature, and a process of shaping the laminate sheet.

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

Abstract: The present invention contemplates a method of manufacturing a laminated sheet having a non-skid surface. In a preferred embodiment a method of manufacturing a decorated unitary laminated tray having a thermoplastic non-skid layer is disclosed.

Abstract: Novel metal-modified phenolic resins useful in the color developer part of a carbonless copy paper system are disclosed, as well as methods for preparing such resins. The metal-modified phenolic resins are reaction products of an aromatic carboxylic acid and a partial condensation reaction product (an oligomer) of a phenol and an aldehyde. The metal-containing compound is added either to the mixture of phenol and aldehyde in forming the oligomer or to the mixture of aromatic carboxylic acid and the oligomer. The color developer materials of the invention are coated on a paper substrate which forms a part of a pressure sensitive recording paper system. The color developer materials exhibit improved performance over prior art colored developer materials.

Abstract: A complex coordination compound of a novolac phenolic resin with zinc, copper, cobalt, cadmium, aluminum, indium, tin, chromium, cobalt or nickel is prepared by reaction of an oxide of the metal or an inorganic functional equivalent of the oxide, an alkanoic or aromatic monocarboxylic acid and an ammonia base. The resin product is useful as a color developer for coating of the record sheet of a chemical carbonless copying sheet system.

Abstract: An improvement in a bowling lane having a decorative laminate surface which improvement comprises incorporating into the core of the laminate a plurality of alternating layers of glass cloth impregnated with a thermosetting resin and crepe paper also impregnated with a thermosetting resin, the glass cloth and crepe paper being interlaminarily bonded to one another.

Abstract: An electrical laminate comprising a plurality of fibrous cellulosic substrate layers and alternately interposed layers of cured epoxy or unsaturated polyester resin between the adjacent substrate layers, wherein each of the substrate layers is embedded in a matrix of said cured resin which is substantially integral with said layers of cured resin, and consists essentially of cellulosic fibers having thereon a coating of methylol group-containing resin such as aminoplast resins. The laminate may be unclad or cladded with a metal foil.

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: An impregnating composition for warp free laminates, is made from the diluted reaction mixture of: a phenolic component selected from at least one of phenol, resol, xylenol, resorcinol, naphthol; alkyl substituted phenol, where alkyl contains from 4 to 13 carbon atoms; and aldehyde.

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 high wet strength waferboard panel is disclosed made from aspen species of wood flakes or equivalent with average specific gravity less than 0.6 and having wet strength equivalent to plywood. At least a portion of the wood wafers are oriented generally in a lengthwise direction such that the length to width strength ratio of the panel, measured as modulus of rupture, is in the range of about 1.3:1 to 2:1, the density of the waferboard panel being in the range of about 38 to 45 lb/ft.sup.3, the content of adhesive resin in the panel being in the range of about 4% to 10%, the content of wax in the panel being in the range of about 1% to 21/2% and the thickness of the panel being in the range of about 3/8 to 11/2 inches. The fully soaked panel having a moisture content of at least about 30% with an MOR lengthwise greater than about 2900 lb/in.sup.2 and an MOE lengthwise greater than about 0.9.times.10.sup.6 lb/in.sup.2.

Abstract: A resin containing laminate is made, where the resin comprises the cured admixture of phenolic resin, sulfur containing lignin, and a catalytic reactant containing 50 wt. % to 100 wt. % of an alkaline-earth compound and 0 wt. % to 50 wt. % of an alkali-metal compound.

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: 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 process is disclosed whereby water-soluble phenol-formaldehyde resins are produced from molten phenol and particulate paraformaldehyde in the presence of an alkaline catalyst by reacting in a coil container at a temperature ranging from about 90.degree. C. to 120.degree. C. Apparatus for conducting the reaction and decorative laminates produced from the resultant resin are also disclosed.

Abstract: The invention relates to flame-retardant, high pressure consolidated articles containing an air-laid web and to a method of preparing such articles wherein boric acid or ammonium pentaborate is added as a flame-retardant additive.

Abstract: The invention relates to oil-modified resole varnishes particularly useful for impregnating paper laminates. Specifically, the invention relates to such compositions in which linseed oil or mixtures thereof with tung oil or oiticica oil is used as the modifier for the resole. Laminates prepared using the varnish are characterized by manufacturing economy, enhanced punchability and other salutary properties.

Abstract: A waferboard having at least one surface rendered water resistant and stabilized against wafer loss is disclosed. In the past heavy paper overlays have been used on panel surfaces. However, these paper overlays are specially treated non-porous paper and generally have to be specially applied by the addition of a glue. The waferboard of the present invention is formed of wood wafers bonded together in a hot press with adhesive resin and wax, and having a layer of porous paper bonded in the hot press to at least one surface of the waferboard. In one embodiment, the contours of the wood wafers on the surface of the waferboard are transmitted through the layer of porous paper.

Abstract: A novel thermosensitive recording material suitable for credit cards, season tickets or passes, and the like to be used for a relatively long period comprises a substrate, a first thermosensitive layer having an acidic developer dispersed in a solid vehicle and laminated on the substrate, and a second thermosensitive layer having a leuco-dye dispersed in a solid vehicle and laminated on the first thermosensitive layer. The recording material can further have a primer layer, an overcoat layer and/or a magnetic recording layer.

Abstract: An improvement in a bowling lane having a decorative laminate surface which improvement comprises incorporating into the core of the laminate a plurality of alternating layers of glass cloth and crepe paper, each core layer being impregnated with a thermosetting resin and an organic fire retardant material, contiguous and adjacent core layers being interlaminarly bonded to one another.

Abstract: The invention relates to high pressure decorative laminates containing an air-laid web of fibers, filler and resin as a core and to a method of preparing such a decorative laminate from an assembly comprising said substrate and a thermosetting resin impregnated decor sheet.

Abstract: The use of a pigmented, fully-hydrolyzed polyvinyl alcohol modified melamine-formaldehyde resin coating in color registered decorative laminates provides improved laminates exhibiting pleasing aesthetics.

Abstract: A method for protecting against duplication of a document with a color copier comprises providing a background color on a document having an average reflectance value and printing on the background with a contrast color having a spectral characteristic which modulates the average reflectance value by no more than 5% and has an average value equal to the average reflectance value. The contrast color is printed with a printing medium that allows activation by a rub and reveal action or by application of intense light.