Abstract: The method of sealing and bonding faying surfaces of laminated graphite reinforced epoxy plates, including the steps of mixing an uncured epoxy resin with a filler of carbon microspheres, impregnating a layer of spaced glass fibers or cloth with the mixture, positioning the impregnated fibers between the faying surfaces of overlapping plates, fastening the plates together, and curing the resin. When it is necessary to repair the seal, the fasteners are removed and the plates are separated with a wedge at the seal bondline without damaging the plate laminations.

Abstract: A method of making electrical connections between metal foils laminated to opposing surfaces of a flexible insulating layer, such as may be configured with spiral patterns in the respective metal foils to form inductive-capacitive circuits useful as detectable markers in RF antipilferage systems, and wherein an electrical connection is provided between the opposing foils by first extruding the laminate to shear the insulating layer and to contact the opposing metal foils in the vicinity of the sheared insulator layer and by subsequently forcing the extrusion back into a substantially planar relationship relative to the remainder of the laminate.

Abstract: Hospital mattresses are generally made of foam plastic having predominantly open cell cores and are in the form of a parallel-epipedic block which is provided with a protective layer consisting of a plastic film which is easy to clean so that injurious substances and bacteria can be removed. Such mattresses have the drawback, however, that when used they produce sounds which are disturbing. These sounds are eliminated in accordance with the present invention by arranging a layer of fabric between the outer surface of the foam plastic block and the protective layer.

Abstract: Process for forming and securing a polymeric sheet onto a planer board, process for making a lap desk, a die apparatus used in the process, and the laminated board product. The process includes the steps of gluing an oversize sheet onto the board and drawing the board through a heated die to bend the edges of the sheet onto the periphery of the board. The lap desk is formed by gluing a bag to the periphery of the board, filling the bag with stuffing, and drawing the sheet, board and stuffed bag through the die to laminate the sheet to the board. The die apparatus includes a frame to hold the assembly as it is drawn through the die, and a press for pushing the assembly through the die.

Abstract: An ion exchange membrane of a fluorinated polymer is bonded to a synthetic resin with a binder selected from the group consisting of fluorinated polymers, polyolefins and polyaryl ethers. The binder is in a form of a net, a cloth or a porous sheet so as to form an uneven interlayer.

Abstract: A multi-layer circuit board laminate is disclosed having a controlled thermal coefficient of expansion which is particularly useful in conjunction with leadless components. The subject invention includes incorporating one or more stabilizing metal sheets into a composite multi-layer circuit board laminate assembly. The stabilizing metal sheets function to significantly reduce the circuit board laminate's thermal coefficient of expansion, thereby enabling the laminate to be used in conjunction with leadless electronic components. In addition, a novel method is disclosed for fabricating one embodiment of the subject invention and includes a unique two-step lamination process which permits apertures to be provided in the metal stabilizing layer and allows the bonding epoxy resin to solidify within the apertures, while simultaneously preventing the entrapment of air.

Abstract: Disclosed is a lightweight laminate and a method for making the laminate. Protective and decorative molding and trim strips for automotive vehicles and the like can be made from the laminate which has a body comprising an extruded thermoplastic elastomer material and an extruded outer layer with a tie sheet sandwiched therebetween. The tie sheet is made with sheet lamination technique and is a laminate of a layer compatible with thermoplastic elastomer material and a layer compatible with the outer layer. Optionally, the outer layer can be transparent and a decorative layer of metallized polyester and/or other material can be encapsulated between the outer layer and the tie sheet.

Abstract: A portion of the surface area of a resin bonded structure comprises an exposed dimpled electrically conductive metal shim bonded to the structure to provide a low electrical impedance connection for mounting a device such as a radio antenna. Preferably, a ply of unidirectional carbon fibres coated with an electrically conductive material such as a uniform and concentric coating of electroplated nickel is located between the shim and the outer carbon fibre layer of the structure with the fibre orientation of the ply of coated carbon fibres at 90 degrees to the carbon fibre layer. The invention also extends to a method of providing a low electrical impedance connection on to a pre-cured resin bonded carbon fibre structure and to a method of attaching a radio antenna on to such a structure.

Abstract: Lining paper having a dehesive surface for wallpapers of all kinds and heavy wall coverings which consists of a fleece laminated on one side with a thin plastic 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: Disclosed is an extruded laminate and a method for making the laminate. Protective and decorative molding and trim strips for automotive vehicles and the like can be made from the laminate which comprises a body of an extruded thermoplastic material such as extruded polyvinylchloride and an extruded outer layer of a different and incompatible material with a tie sheet sandwiched therebetween. The tie sheet is a thin laminate of a layer compatible with the thermoplastic material of the body and a layer compatible with the material of the outer layer. Optionally, a decorative layer of metallized polyester and/or other material can be encapsulated between the tie sheet and the body or outer layer.

Abstract: A method of making insulated pipe joints in the field. The method includes the steps of providing a rigid shroud which is larger than the fitting from fitting end to fitting end, welding a first pipe length to a first end of the fitting, moving the shroud over the fitting to project the second end of the fitting beyond the second end of the shroud, welding the second pipe length to the second end of the fitting, centering the shroud on the fitting, enclosing the gaps between the fitting shroud and the shrouds of the pipe lengths by mold members, pouring a foamable insulation into the space between the fitting and fitting shroud and into the gaps, setting the insulation, removing the molds to expose the gap areas, and thereafter applying a protective coating to the gaps which coating overlaps the fitting shroud and the pipe length shrouds.

Abstract: A method and apparatus for providing strain relief to a cable splice area is disclosed. A length of flexible cord is secured to the cable on each side of the splice. A frictional substrate is supported over the cord and the cable. The frictional substrate is compressily secured to the cable thereby frictionally supporting the cord to the cable.

Abstract: An enclosure for having foam generated and contained therein is defined between two layers of flexible thermoplastic material, which are edge sealed to define an enclosed unit. One inwardly facing surface of one layer is coated with a first foam generating agent, such as crystals, and the opposite, inwardly facing surface of the other layer is coated with capsules of another foam forming agent, wherein the capsules prevent mixing of the two agents for generating foam. Upon subsequent rupture of the capsules, the foam generating agents mix, react and generate foam in the enclosure. An additional layer may be disposed between the two exterior layers. Both surfaces of the additional layer also carry one of the foam forming agents, whereby two enclosures are defined, one over the other, each for generating and containing foam. In forming the enclosed unit, each layer is separately coated with its respective foam forming agent and thereafter the layers are secured together to define the enclosure.

Abstract: Aqueous polyisocyanate emulsions are made by emulsifying 5 to 70 parts by weight (on a basis of 100 parts) of a polyisocyanate which has not been modified to render it hydrophilic and emulsifiable with 30 to 95 parts by weight (on a basis of 100 parts) aqueous paraffin dispersion containing 3 to 65 wt. % paraffin, and optionally known additives in the presence of water. The water is used in a quantity such that the emulsion has a solids content of from 6 to 90 wt. %. These emulsions are particularly useful as binders in the production of molded articles.

Abstract: A continuous process for producing reinforced resin laminates comprising the steps of impregnating a fibrous substrate with a liquid resin which is free of volatile solvent and is capable of curing without generating liquid and gaseous byproducts, laminating a plurality of the resin-impregnated substrates into a unitary member, sandwiching the laminate between a pair of covering sheets, and curing the laminate between said pair of covering sheets without applying appreciable pressure. The improvement comprises adjusting the final resin content in said resin impregnated substrate at 10 to 90% by weight based on the total weight of said impregnated substrate.

Abstract: A method of making a wear member for a railway vehicle is described, a wear member having a U-shaped support that is provided with a bight and a pair of parallel legs and carrying on the bight thereof anti-friction polymeric material. The support is made of structural material of substantially uniform thickness throughout, the structural material having a plurality of corrugations defining the bight of the support with each corrugation having the uniform thickness throughout substantially its entire configuration and having an end surface spaced from and coplanar with the end surfaces of the corrugations adjacent thereto whereby the corrugations provide structural strength for the bight of the support, the polymeric material being supported by certain of the corrugations at just the adjacent and coplanar end surfaces thereof.

Abstract: A laminated, spray-suppression device having service properties over a wide range of use temperatures includes a non-woven nylon fabric core layer to inhibit stress cracks originating at low temperatures in an embrittled, grass-like low density polyethylene or polypropylene layer on one side of the core layer from propagating through to a high density polyethylene backing layer on the other side of the core layer.

Abstract: A method for producing a prepreg roving, which comprises impregnating a composition comprising an unsaturated polyester, an unsaturated monomer and a polyisocynate compound in a filamentary reinforcing material, and then heating the impregnated reinforcing material to react the unsaturated polyester with the polyisocyanate compound; and a method for producing a fiber-reinforced plastic article, which comprises disposing prepreg rovings (A), said prepreg rovings being prepared by the above method between at least two plies of sheet molding compound (B) obtained by impregnating a composition comprising an unsaturated polyester and an unsaturated monomer in glass fibers and forming the impregnated product into a sheet; and consolidating the resulting assembly under heat and pressure.

Abstract: Small decorative plates for ornamental use, in particular for the decoration of textiles having an effective inner layer with at least one metallic layer, and two thermically activatable melt adhesive layers forming the outer layers on both sides.

Abstract: A phosphate glass such as calcium metaphosphate (Ca(PO.sub.4).sub.2) is heat-treated in a temperature gradient to obtain a crystallized glass (glass-ceramics) made of oriented fiber like crystals which has high bending strength in an abraded state.

Abstract: A method and apparatus for joining sealingly incompatible plastic materials is disclosed. A coextruded connector (10) with separate, telescopically related layers (12,14) is affixed to one of the materials. The outer layer (14) of connector (10) is composed of a polymer specifically selected to melt or deform at a temperature lower than that of inner layer (12). The connector is frictionally fit within a second material to be joined and the connection is heated to a temperature sufficient to melt or deform outer layer (14) without melting inner layer (12). Outer layer 14 is thereby securely fused to the second material or blood container.A secondary embodiment is disclosed for joining materials of similar composition. Two coextruded connectors (40,46), having telescopically related layers composed of different polymer materials, are formed, as above, but the layer sequence of each connector is opposite to the other.

Abstract: Variations in performance of metal clad reinforced resin laminates may be minimized by aging the laminates in a high-temperature, high-humidity atmosphere subsequent to the curing step. The products are useful for the production of printed circuit wiring boards.

Abstract: A method for joining waterproof vulcanized synthetic rubber sheets is described wherein a cold-vulcanizable adhesive tape having Mooney viscosity [ML.sub.1+5 (100.degree. C.)] of from 5 to 25 and an autoadhesion property, and which contains a rubbery polymer comprising (1) ethylene-propylene terpolymer, butyl rubber, or a blend of ethylene-propylene terpolymer and butyl rubber, (2) a vulcanizing agent, (3) a vulcanization accelerator, (4) an adhesive agent, and (5) a softening agent is placed between overlapped areas of the waterproof vulcanized synthetic rubber sheets, and said adhesive tape is cold-vulcanized to thereby join the sheets.

Abstract: A process for producing a fire retardant and heat resistant copper-clad laminated board, characterized in that a maleimide resin type varnish containing a small amount of a specific halogenated diphenyl ether compound is used for impregnation of base material therewith. Copper-clad laminated boards produced according to the present invention may be so improved in fire or flame retardant properties as to be classed 94 V-0 in accordance with UL 94 (vertical burning test), and, nevertheless, are not substantially downgraded in heat resisting properties as well as copper foil peel strength.

Abstract: A brassiere pad is formed by providing two cones, each consisting of batting and having a seam extending from the cone apex to its periphery; nesting the cones to orient the seams in selected non-superposed position; and applying heat and pressure to the cones to effect their compression to final pad shape and interconnection through curing of a bonding agent.

Abstract: An object is secured to a flat surface by contacting a thermally activated sheet with a solvent rendering the normally non-tacky sheet in a tacky state. The now tacky sheet is attached to the flat surface with the aid of a template while the object to be secured is heated apart from the surface or the adhesive sheet. The heated object is then pressed against the adhesive sheet with the aid of the template and pressure is applied until the adhesive cools sufficiently to set forming a bond between the object and the flat surface.

Abstract: A laminated, spray-suppression device having service properties over a wide range of use temperatures includes a non-woven nylon fabric core layer to inhibit stress cracks originating at low temperatures in an embrittled, grass-like low density polyethylene or polypropylene layer on one side of the core layer from propagating through to a high density polyethylene backing layer on the other side of the core layer.

Abstract: A process for providing a low haze, high transparent, high heat-resistant laminate by forming a preform laminate of a high heat-resistant layer covered on both surfaces by a non-glass protective layer with at least one said layer being an as-cast acrylic layer. This combination can be readily stored for long periods of time or used immediately after the formation thereof by peeling off one of the as-cast acrylic layers and applying a transparent flexible adhesive layer thereto. The transparent material can be added to the adhesive layer. Many other combinations and laminates can be formed from the preform high heat-resistant laminate since during the preparation thereof, haze is not introduced to the transparency via moisture, and contact with haze-forming release coatings is avoided.

Abstract: The invention provides improved bonding methods and bonded laminates using multi-part adhesive compositions having first and second parts. The first part of the adhesive composition comprises free radical polymerizable monomers and a source of free radicals; the second part comprises an activator for initiation of polymerization of the monomer. According to the invention, flexible, activator carrying elements are positioned between layers of the first part to provide effective bonding between substrate surfaces which may be spaced apart from each other by relatively large gaps.

Abstract: A continuous process for producing reinforced resin laminates comprising the steps of impregnating a fibrous substrate with a liquid resin which is free of volatile solvent and is capable of curing without generating liquid and gaseous byproducts, laminating a plurality of the resin-impregnated substrates into a unitary member, sandwiching the laminate between a pair of covering sheets, and curing the laminate between said pair of covering sheets without applying appreciable pressure. The improvement comprises adjusting the final resin content in said resin impregnated substrate at 10 to 90% by weight based on the total weight of said impregnated substrate.

Abstract: The present invention is an improved method of manufacturing fibrous reinforced resin sheet. The improvement is to use a carrier web and/or a top film which is made of uniaxially drawn polyamide.

Abstract: A photo-hardenable adhesive composition particularly suitable for use in the bonding of glass to other materials, especially plastics, as in the production of safety glass and armored glass laminates and comprising(A) a photopolymerizable ester of an .alpha.,.beta.-ethylenically unsaturated acid and a hydroxylated urethane or urea and having a molecular weight of 500 to 10,000(B) a photoinitiator(C) a substituted or unsubstituted aliphatic or cycloaliphatic N,N-dialkylamino alcohol ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, said alcohol having an alkylene moiety of up to six carbon atoms between hydroxy and the amino functions, and(D) an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in an amount equal to one mole per mole of C, (C) and (D) being capable of reacting together to form a betaine, and preferably(E) at least one further copolymerizable monomer or oligomer and which may comprise an excess of (C) or (D) over equimolar.

Abstract: A laminated insulating and packaging material comprised of a metal foil sheet bonded to a non-woven glass fiber paper-like sheet by a latex adhesive which resulting laminate in certain embodiments is bonded to corrugated cardboard to make fire-retardant packaging material.

Abstract: A primer is provided as a bonding base in an extruded hollow aluminum shape ensheathed by a polyurethane foam. Due to the different coefficients of expansion between the plastic and the aluminum, changes in length take place, which cannot be adequately prevented using the known primers.The invention therefore solves the problem to widely prevent the shrinkage of the plastic sheath and simultaneously to provide a way of depositing the primer in a simple manner.This problem is solved by the invention in that the primer is a compound of resin, pigment and acid. The purpose of the acid is to cause the bonding reaction with the metal substrate, whereas the pigments on one hand cause the bonding reaction with the plastic sheath and on the other hand are used to ascertain the apparent film thickness.An improvement in adhesion of 1,000% is surprisingly achieved when using such a primer.

Abstract: Clayware is produced by firing a composition containing clay and a boron-containing flux, wherein the flux is a synthetic alkali metal and/or alkaline earth metal aluminosilicate having the crystal structure of a zeolite and containing boron entrapped within that structure. The boronated zeolite flux can be prepared in a form in which it can be used directly in the manufacture of clayware, especially earthenware.

Abstract: An improved interliner for fabric articles such as neckbands, collars, cuffs for garments such as shirts and the like. The interliner includes a fabric having a heat responsive permanent adhesive disposed on one surface and on the opposite surface another heat responsive adhesive which serves solely as a fabrication aid and acts as a temporary bonding agent. The permanent adhesive may be employed to bond the interliner to an outer face ply of fabric, thereby imparting form stability and wrinkle resistance to the article despite repeated laundering or dry cleaning. The temporary adhesive adheres to the other face ply for ease of assembly of the garment structure. Alternatively, the permanent adhesive may be used to bind the interliner to a second interliner to impart greater resilience and shape retentive qualities to the fabric structure.

Abstract: An endless belt, for apparatus for continuously hot pressing webs of material by pulling the belt against the periphery of a heated rotatable drum with the web interposed therebetween, comprising a layer of butyl rubber bonded to a fabric of steel wires, a textile layer adhered to the butyl rubber and a layer of silicon rubber adhered to the textile layer. In manufacture the fabric of steel wires is encased in the butyl rubber, the textile layer is adhered to the butyl rubber and the composite article is vulcanized. After vulcanization, the silicon rubber layer is adhered to the textile layer and the composite article thus formed again vulcanized.

Abstract: A retainer assembly for and method of securing a molding strip to an exterior automobile panel which includes a body engaged with the molding strip and having a surface which confronts the automobile panel. A double surface adhesive sheet is on part of the body surface and a liquid bonding agent on another part. The adhesive sheet holds the molding strip on the automobile panel while the liquid bonding agent solidifies. Thereafter, both the adhesive sheet and the bonding agent hold the molding strip in place.

Abstract: An arrangement and method for tiling bath enclosures, shower stalls, and the like, comprises providing a sheet of imperforate, substantially waterproof material with a dry, solvent-based film adhesive formed on the exterior side of the sheet. The interior side of the sheet is adhered to those substrate walls to be tiled, and tile adhesive is applied over the film adhesive on the exterior side of the sheet. The tile adhesive includes a solvent which partially dissolves the film adhesive, and a crosslinking agent which securely bonds the adhesives to each other and the waterproof sheet. Ceramic tiles are pressed into the wet adhesive, and are fixedly anchored in place as the adhesive cures, such that the waterproof sheet forms a barrier between the tiles and the substrate walls which is substantially impervious to moisture.

Abstract: A process and apparatus for continuously forming a reinforced membrane of fluorinated polymers containing sulfonyl and/or carboxyl groups in melt-fabricable form and, after hydrolysis, the corresponding membrane in ion exchange form. The membrane thus formed has exceptional uniformity, and this membrane so made, when used as the membrane which separates the compartments of a chloralkali cell, offers the advantages of low operating voltage, low power consumption and high current efficiency, and a long useful life without rupture.

Abstract: A veneer sheet and an adhesive coated sheet are placed on a piling table. Two vertically arranged conveyors each independently conveys one veneer sheet and stops at predetermined position, pressing member presses two sheets simultaneously vertically downwards onto the piling table where the sheets are placed.

Abstract: A method of producing a surface connection or bond between two surfaces, the first surface being at least partially formed of polypropylene and the second surface being formed of a dissimilar material, wherein the second surface is laminated with a textile surface structure formed predominantly of polypropylene fibres, the thus laminated second surface and the first surface then being connected to one another by the application of heat and pressure.

Abstract: A glass fiber reinforced resin laminate comprising a cured layer of glass fiber reinforced resin using an unsaturated polyester resin (I) and a surface layer of polyvinyl fluoride formed on at least one of the opposite surface of the aforementioned cured layer, wherein said unsaturated polyester resin (I) comprises (A) 40 to 80% by weight of an unsaturated polyester derived from an acid moiety containing 20 to 90 mol% of at least one member selected from the group consisting of .alpha.,.beta.-unsaturated polybasic acids and anhydrides thereof and a polyhydric alcohol moiety containing 10 to 40 mol% of diethylene glycol and (B) 60 to 20% by weight of an ethylenically unsaturated monomer containing an amount falling within the range of 0.1 to 0.6 mol, based on mol of the diethylene glycol used in the derivation of said unsaturated polyester (A), of an acrylic ester or methacrylic ester, and, on being cured, exhibits a refractive index within the range of 1.50 to 1.56 at 25.degree. C.

Abstract: A metal-plastic-metal structural laminate which can be formed into various useful articles having compound curves using conventional metal forming techniques. The laminate comprises two metal skin layers and a centrally disposed polymer layer comprising a core layer, and optionally first and second adhesive layers. Each metal skin layer is 2 to 20 mils, the ratio of the core thickness to skin thickness is less than 9:1 and the total laminate thickness is 5 to 65 mils. The laminate can be bent to 90.degree. to a critical radius, the distance between the pivot point and the inner skin surface of the laminate, without metal rupture.

Abstract: When water is removed from a body of wet intumescent material by heating it for a period of time during which water is allowed to evaporate, microbubbles tend to form in the resulting body during the later stages of drying and/or during aging of the body.In order to reduce this tendency, during at least a part of the heating period there is introduced into the atmosphere in contact with the intumescent material one or more gases which is less soluble in the intumescent material than is oxygen, and/or one or more gases which is the vapor phase of a solvent for the body. The most preferred solvent vapor is steam, and preferred less soluble gases include SF.sub.6, CF.sub.4, N.sub.2 and cyclohexane.

Abstract: An improved process for producing a photo-curable composite material using a liquid photo-curable resin, which comprises holding a liquid photo-curable resin with a screen material between two films, at least one of the films having photo-transmitting properties, and passing the films holding the liquid photo-curable resin and the screen material through a gap (e.g. between two rollers). The process of the present invention can produce photo-curable composite materials useful for preparing various stencils for screen printing, textile printing, or the like at a low cost and with less production of defects.

Abstract: A wall covering has a textile element secured to a backing by a thermo-fusible material. The textile element is formed of compacted zig-zags of the warp formed by a crocheting machine and held on the backing by chain stitching parallel to the direction of movement in the machine. The chain stitching along the selvage edges of the element precut the backing for removal of excess backing by tearing. The covering is coupled by a final step of fusing the thermo-fusible material.

Abstract: Described is an adhesive assembly containing a first adhesive and a second adhesive which is of a different strength or chemical composition than the first adhesive and positioned between the first and second adhesives is a barrier means for preventing contamination of the respective adhesives or the substrates to which they adhere wherein the combination of the adhesives includes a spongy or foam layer. Also described is a method of adhering together a plurality of substrates employing the adhesive assembly.

Abstract: A hot-melt adhesive line and an article of manufacture including the same are made up of one or more bundles of fibrous strands (49% by weight) and hot-melt adhesive to effect interfibrous adhesion after heated dispersion throughout the fibers of the strands. The line has an extruded outer layer of compacted adhesive to enclose the strands of the bundle and to adhere by uniform spreading of the entire strand onto a container surface. Typically, 1000 strands of man-made material are included in a hot-melt adhesive line that is 0.024 inch in diameter. Adjoined, side-by-side strands provide tape one-half inch in width.