Abstract: Intermediate films are automatically removed from an intermediate film stack. The removed intermediate film is positioned on a table and cut to a desired size, and then placed on one of two curved glass sheets which has its convex side facing up. Thereafter, the other glass sheet is positioned over said one of the glass sheets, and both the glass sheets are positioned at the same time. Then, the lower glass sheet is moved upwardly against the upper glass sheet so that the glass sheets are superposed with the intermediate film interposed therebetween.

Abstract: A nail file comprises a core of stiff sheet material and a layer of abrasive material laminated to at least one surface of the sheet material.

Abstract: A bonding system for assembling internal combustion engine crankshaft vibration dampers having an annular inertia ring mounted upon a hub by an elastomeric ring interposed between the inertia ring and hub. After assembly of the components, a thermosetting adhesive located between the elastomeric ring and the inertia ring and hub is heated to a bonding temperature by low frequency electrical induction. The damper components are mechanically clamped during heating and the elastomer is permitted to thermally expand. Heat is concentrated adjacent the adhesive to minimize thermal aging and degrading of the elastomer.

Abstract: The invention presents to the art a novel, improved shoe stiffener which comprises co-extruded layers of plastics film. The shoe stiffener comprises co-extruded layers of plastics film, a first of the layers comprising an ionomeric material and providing a main body of the stiffener and a second layer comprising a plastics material which does not adhere to a fusion press under conditions normally encountered therein during bonding of a shoe stiffener to a shoe upper. Nylon 6 is the preferred second layer plastics material. The co-extrusion product replaces fabric backed shoe stiffeners in which flaws induced in the film by the fabric may provide notches from which cracks in the material can propagate.

Abstract: A method and apparatus for rapidly bonding two surfaces which are associated with paper elements and corrugated paper elements. A heater plate is utilized to raise the temperature of one of the surfaces while a water based adhesive is applied to the other of said surfaces, which other surface remains at ambient temperature. The heated and ambient surfaces are subsequently contacted and pressure is applied between the surfaces until the bonding is complete.

Abstract: Composite panels with plastic core of polyvinylchloride and metal outer layers bonded to the core by means of adhesive layers, including those where flame retardant additives are incorporated in the plastic core, do not exhibit completely satisfactory properties for certain applications, in particular with respect to behavior under fire conditions viz., the creation of smoke. Composite panels having a plastic core of post-chlorinated polyvinylchloride or a mixture of the same with polyvinylchloride avoid these disadvantages.

Abstract: A method of curing adhesive applied between a strain gauge and a transducer body. The method includes the steps of placing the transducer into contact with a fixed member, applying adhesive to a strain gauge and pressing the adhesive coated strain gauge on the transducer body while heating the fixed member. Heating is provided for by controlling the heat supplied to the fixed member so as to maintain the member at a predetermined temperature.

Abstract: The present invention relates to an improved book-binding process comprising the use of an aqueous primer adhesive composition containing ungelatinized starch. A layer of the primer adhesive is coalesced to a resilient hinge by the application of a hot-covering adhesive without the need for an intermediate drying step. The coalesced film of primer adhesive provides a suitable underlying substrate for the adherent covering adhesive which binds the cover stock to the finished book.

Abstract: A process and an apparatus for producing a welded can body having an organic coated welded part are provided in which the exposed metal portion on the inside of the welded part of the can body and its vicinity is covered with a tape of an organic resin alone or a mixture of an organic resin with an inorganic material such as a pigment, a metal, etc. The resin tape is entirely supported by a mandrel to be disposed inside the can body, and pressed against the inside surface of the welded part and its vicinity. By heating the welded part of the can body, the resin tape is heated during pressing.

Abstract: An apparatus (10) for laminating plastics film(s) (12) to an element (14), for example wire netting. The apparatus (10) comprising a pair of resilient rollers (18 and 20) which presses the element (14) and plastics film(s) (12) together. Beforehand the plastics film(s) (12) passes a heating means (40) to reach a fusion temperature and an applicator (50) dispenses adhesive onto the element (14). A strong bond results between the plastics film(s) (12) and the element (14). A method is also described.

Abstract: The invention relates to a laminated material which comprises a carrier layer of paper or cardboard and an outside layer of extruded polythene applied to one side of the carrier layer. To the other side of the carrier layer is applied a first binder layer of polythene and a layer of aluminum foil placed against the binder layer. A second binder layer of EAA is provided for the bonding together of the aluminum foil with an inner polythene layer which has been produced by blowing and which has a substantially higher modulus of elasticity and strength than the slot-extruded polythene layer. The invention also relates to a method for the manufacture of the laminate by making use of the heat content of the first slot-extruded binder layer of polythene for heating up the second binder layer of EAA to such a temperature that an effective bonding on the aluminum foil is obtained.

Abstract: A decorative laminate and method of transferring designs onto articles. The laminate is formed of a transfer substrate affixed to a support member. The transfer substrate is composed of a protective layer, an ink layer, and a nonwax-based adhesive/release layer. The adhesive/release layer is in direct contact with the support member and use of a wax layer intermediate the adhesive/release layer and the support is excluded. Optionally, a barrier layer is provided between the adhesive/release layer and the ink layer. In many applications the protective coating layer may be omitted. The laminate is applied to an article using a heated silicone rubber transfer pad to which the transfer substrate adheres during the transfer process.

Abstract: The present invention relates to a method of laying out and fixing a thin electric conductor on an elastic and flexible backing for heating seats and back of chairs, cushions, mattresses and the like. The method includes the steps of advancing the conductor out of a magazine and forming the conductor to a substantially permanent zigzag pattern constituting a strand. The strand is guided at a selected feed speed from a feeding arrangement to a structural body to be attached to a surface of the structural body. The feeding arrangement is moved along the structural body in a pattern desired for the completed product at a speed such that the relative speed between the strand and the structural body is substantially zero. The strand is fixedly attached to the structural body by an adhesive.

Abstract: In the sealing of a glass container containing a product such as a food product by means of a cover comprising a metal foil having on one surface thereof a sealant layer of a thermoplastic resin, the opening end of the container is preheated, and the cover is placed on the opening end, after which the cover is pressed against the opening end successively by a heating plate and a separate pressing plate. By this process, a positive seal and a high sealing process efficiency are obtained even when the container content is a product such as a heated liquid food product and even when the rim surface of the opening end of the container has some projecting irregularities.

Abstract: Disclosed are plastisol compositions comprising a poly(vinyl chloride) resin, a plasticizer for the resin in an amount sufficient to form a plastisol, and from about 4 to about 20% by weight, based on the weight of the composition, of a saturated, thermoplastic polyester dispersed in the plastisol, the polyester being in particulate form, having a melting point of about 70.degree. to about 200.degree. C., a heat of fusion of about 10 calories per gram or less, and an inherent viscosity of about 0.3 to about 1.0.

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 decorative laminate and method of transferring designs onto articles. The laminate is formed of a transfer substrate affixed to a support member. The transfer substrate is composed of a protective layer, an ink layer and a resinous coating layer. Optionally, a barrier layer is provided beteen the resinous layer and the ink layer. In many applications the protective coating layer may be omitted. The laminate is applied to an article using a heated silicone rubber transfer pad to which the transfer substrate adheres during the transfer process.

Abstract: This invention relates to a method and apparatus for the automatic assembly of a flexible interlayer sheet with one or more bent glass sheets using residual heat from bending the glass sheets to make the flexible interlayer sheet sufficiently tacky to avoid relative sliding between the sheets comprising the subassembly or sandwich that is assembled.

Abstract: A mold for supporting a flexible sheet of interlayer material for assembly against a bent glass sheet or between a pair of bent glass sheets of matching configuration has a first apertured wall shaped to conform to the shape of the bent glass, and a second apertured wall of conforming shape adapted for coupling to a vacuum source to form and hold the flexible sheet of interlayer material against the mold in unwrinkled condition. The mold is pivoted to a carriage from a mold loading orientation of convex elevational configuration to a mold unloading orientation of concave elevational configuration. Carriage movement between a mold loading station and an assembly station is correlated to the elevational configuration of the mold in a method of using the mold in assembling said flexible sheet of interlayer material againt one or more bent glass sheets.

Abstract: A process for promoting the adhesion of polyolefins to metals, glass sheets, cement, asbestos or polar polymers (polyamides, polyesters, ethylene-vinyl acetate copolymers, etc.), which consists in modifying the polyolefin by reaction with 0.01%-7% by weight of a compound selected from the group consisting of bis-maleamic acids, bis-fumaramic acids, alkyl esters of said acids in which the alkyl radical has from 1 to 12 carbon atoms, and precursors of said acids or esters, and successively heating at temperature at which the polyolefin is applied to the support to be coated. The main applications concern the lining of pipes or other manufactured metal articles in order to protect them against chemical and atmospheric agents.

Abstract: A compound composite structure is a combination of plastics and other materials forming a structure usable in the fabrication of manufactured products or components. A compound composite structure is composed of a thermoplastic resin material bonded to, by mixture with, a composite reinforcing structure. The composite reinforcing structure consists of fibers imbedded in a thermoplastic resin material. The composite reinforcing structure may be formed by passing extruded plastic resin material through a die which imbeds fibers. The compound composite structure may be formed by mounting a preformed composite reinforcing structure in a molding die and by injecting thermoplastic resin material into the molding die.

Abstract: A composite expanded sheet reinforcing material especially useful as a stiffening, vibration and sound dampening, reinforcing laminate, and methods of manufacturing such sheet reinforcing material and of reinforcing articles therewith are disclosed. Formable sheet material having a layer of a foamable adhesive laminated thereon is passed through an expanding apparatus which forms rows of spaced, longitudinally staggered slits through the laminated sheet to form a series of elongated strands integrally joined at their ends by a series of joints or bonds. The slit material is expanded in a direction transverse to the longitudinal direction of the slits, causing the adhesive-coated surfaces of the strands and joints to be inclined at an acute angle to the principal plane of the formed reinforcing sheet.

Abstract: An aerosol type container wherein a separate product bag of plastics material is provided. The bag is of a larger size than the opening in which the valve cup is seated and thus must be gathered or pleated to pass through that reduced diameter opening. The initially gathered or pleated bag material is compressively engaged between the top curl defining the opening and the valve cup and is heated to a molding and bonding temperature so that a molded ring conforming to the adjacent portions of the top curl and the valve seat is formed, this part eliminating the usual need for a compound or other sealant between the valve cup and the top curl.

Abstract: Process for forming seams in textile structures free of individually high frequency heat sealable components. Textile structure is subjected to a high frequency current to produce seams. Structure contains first fiber component that does not become thermoplastic within the field, but becomes heated. A second fiber component becomes thermoplastic from heat generated in the first component. First component may be polyacrylonitrile; second may be polyester, texturized polyester silk or polypropylene. A third component may be added for reinforcement and fluffiness.

Abstract: A multi-layer adhesive material for producing an adhesive bond between two essentially mutually parallel surfaces, especially for providing an adhesive bond between a surface of a ski and a surface of an attachment body for the ski, wherein the multi-layer adhesive material contains two outer adhesive surfaces and at least one predominantly elastic carrier layer. There is provided in addition to the predominantly elastic carrier layer at least one predominantly plastic carrier layer having at its outwardly directed side or face one of the two adhesive surfaces of the adhesive material.The method of using such adhesive material for establishing an adhesive connection between the aforementioned surfaces contemplates profiling the surface of the body to be connected with another body for increasing its adhesive surface, and which profiled surface faces the predominantly plastic carrier layer of the adhesive material.

Abstract: A metallic substrate and an outer thermoplastic resinous coating are bonded to one another by a resinous polyamide hot melt adhesive prepared by condensation of an unpolymerized amide-forming dicarboxylic-containing compound or polymeric fatty acid with a diamine of the formula ##STR1## wherein each of R.sup.4, R.sup.5, R.sup.6 and R.sup.7 is a hydrogen atom or an alkyl radical; X is a nitrogen atom or a carbon atom bearing a single hydrogen substituent and n is an integer of from 1 to 6 inclusive. The adhesive is first applied to the metal substrate with sequential deposition of the thermoplastic resinous outer coating.

Abstract: Improved impact or shock resistant soft coated laminates including a back polycarbonate lamina opposite the direction of impact or shock, such polycarbonate lamina having a soft overlying or exposed layer or coating opposite the direction of impact, are provided. The laminates exhibit excellent resistance to failure and spalling of the polycarbonate surface opposite the impact or shock receiving surface.The soft coat is a self-healing, chemically resistant polyurethane having an excess of free hydroxyl groups over isocyanate groups and confers on the laminates excellent scratch resistance, good resistance against swelling and stress cracking while at the same time the laminates exhibit good clarity and integrity in addition to good chemical and permeation resistance, as well as resistance to failure and spalling. The process employs the polyurethane in film form as a cap sheet.

Abstract: An in-line method of forming a laminate of a heat sensitive foam sheet material, and a hot extruded polymeric product comprising hot extruding a polymeric material into a shaped product and while still hot contacting the shaped product with a face of the heat sensitive foam sheet material and thereafter cooling the resulting product. Such face is previously coated with a layer of a heat sealing substance which is activated at a temperature below the softening point of the heat sensitive foam sheet. The heat seal contact takes place under minimal pressure when the surface temperature of the shaped product is still high enough to activate the heat sealing substance but not high enough to damage the heat sensitive sheet. The laminates so made are part of the invention.

Abstract: A method of joining coated large-diameter steel pipes laid underground which comprises placing the steel pipes end to end, applying a layer of heat insulating material to the outer surface of the welding part, covering the ends of the pipe coating the non-coated part of the pipe ends and the layer of the heat insulating material with a layer of a heat fusible, heat adhesive, corrosion resisting material of a shape corresponding to the external shape of the pipes, placing a thin clamp plate around the outer surface of this layer to make it fast, and then internally welding the groove to join the pipes together, whereby the welding heat is utilized effectively and both the corrosion resisting material and the pipe coating are fused by the heat, thus causing the thermally fused corrosion resisting material to adher and solidify on the uncoated portions of the pipes and unite with the ends of the pipe coating and thereby forming a corrosion resisting covering layer.

Abstract: An improved method of manufacturing or retreading pneumatic tires is disclosed wherein a precured tread component is bonded to a tire carcass or casing primarily by utilization of the residual heat in the precured tread component. The method includes the steps of molding or vulcanizing the tread in an apparatus such as a mold or other conventional type device designed to form and vulcanize a tire tread with or without the tread design. The method also includes providing the new tire carcass in finished form or a buffed casing, except for the tread, and conveying the precured tread at an elevated temperature to the tire carcass and applying the same thereon. In applying the tread to the carcass, the carcass is mounted on a mechanism capable of rotating the tire and precisely guiding the heated tread onto the carcass, and also includes stitching the tread to the carcass and using an intermediate bonding medium which is known in the trade as cushion rubber.

Abstract: Preparing modified hot melting adhesive powders by adding melting point and fusion viscosity depressing agents in powder form to powdered polyamides, wherein the mixture granules are tempered until the added agents are distributed in the polyamide granules substantially to a level of molecular uniformity.

Abstract: Apparatus for handling glass jars with lids as they move toward a labeling machine to receive labels thereon. The jars are initially disposed in a crate which holds a number of layers of the jars and, after being unloaded from the crate, one layer at a time, the jars are moved by a conveyor along a generally horizontal path and are subjected to a hot water spray for a predetermined time. In this way, the jars are preheated so that the labels will more positively adhere thereto. Also, the spray removes dust and water spots from the lids of the jars. After passing through the spray, the jars are directed, one by one, through the labeling machine.

Abstract: In assembling at least one metal frame in abutting supporting relation to a diaphragm to form a diaphragm assembly for an electro-acoustic transducer, for example, as in a microphone or headphone, the diaphragm, which may be an electret, is formed at least in part of a thermoplastic resin so as to provide the latter at each surface of the diaphragm which, in the abutting supporting relation, is engaged by a surface of a metal frame, and the frame or frames and the diaphragm are pressed together in the desired abutting supporting relation while each metal frame is heated so that heat is transmitted through the latter to melt the thermoplastic resin at the engaged surfaces of the diaphragm and frame or frames, whereupon the heating of the frame or frames is halted so that the thermoplastic resin hardens to bond together the diaphragm and frame or frames in the desired abutting supporting relation.

Abstract: Method for a unitized valve plate assembly in which a suitable gasket is firmly bonded to one or both sides of a metal plate with the unitized assembly having one or more die-cut holes or apertures therethrough and with the unitized plate assembly being particularly suitable for use as a valve plate unit in automatic transmissions, but having other uses as well.

Abstract: An improvement in a method of transferring or applying a decal design of a heat release decal or decalcomania to a flat surface such as the flat bottom surface of the concavity of a dish-like article and with only a limited amount or without an appreciable amount of the heat release coating surrounding the decal design being transferred to the flat surface. A mask of a thin resilient material, such as silicone rubber for example, is disposed adjacent the flat surface, such mask embodying a hole or opening having a shape or configuration geometrically similar to the shape of but slightly larger than the face of a pressure head used in applying the design so that, during the transfer operation, the transfer to the flat surface of any appreciable amount of the heat release coating surrounding the decal design is prevented.

Abstract: Alcohols preferably having a pka below that of propanol-1 are heated with certain heterocyclic phosphites to give phosphonates and certain heterocyclic phosphonites, to give phosphinates. If small amounts of alcohols are employed, the products are generally polymeric in nature whereas if larger amounts of the alcohol are employed, there is generally ring opening to the simpler monomer, or isomerization to the phosphonate or phosphinate. The products are useful as fire retardants and as adhesives for glass. Pentaerythritol phosphite can be self-polymerized by such heating to form the adhesive polymer.

Abstract: Thermoplastic adhesive polycarbonamide-ester compositions having molecular weights ranging from about 2000 to 7000, a viscosity of about 2000 to 5000 centipoise at 160.degree.C. and a tensile shear strength of about 75 to 140 pounds per 1 inch .times. 1/2 inch lap, which are useful in the formation of creep resistant adhesive bonds in product assembly between laminae of relatively impervious materials such as glass, metals and certain of the plastics, e.g. polyethylene. An outstanding product assembly of this invention is a container of composite construction having a glass envelope of thin walled construction in the shape of an inverted light bulb bonded to a plastic cup-like base member with the above described thermoplastic adhesive composition.