Abstract: A gelled solid adhesive for coating substrates, typically paper. The adhesive can be made available in stick form and is easily applied in even coats to any surface area of the substrate. The adhesive has sufficient tack enabling the coated substrate to instantly adhere to essentially any free contact surface upon gently pressing the substrate to the free surface. The adhesive coated substrate is easily removable from the contact surface by manually lifting it therefrom. The adhesive permits readherence of the adhesive coated substrate to the same or different free contact surfaces. An adhesive coated paper substrate will readhere many times to free paper contact surface. The preferred gelled adhesive product is formed of an aqueous dispersion of components which include a rubber such as natural rubber latex component, a friction reducing agent, a tackifier, an antioxidant, a gelling agent and surfactant.

Abstract: A gelled solid adhesive for coating substrates, typically paper. The adhesive can be made available in stick form and is easily applied in even coats to any surface area of the substrate. The adhesive has sufficient tack enabling the coated substrate to instantly adhere to essentially any free contact surface upon gently pressing the substrate to the free surface. The adhesive coated substrate is easily removable from the contact surface by manually lifting it therefrom. The adhesive permits readherence of the adhesive coated substrate to the same or different free contact surfaces. An adhesive coated paper substrate will readhere many times to free paper contact surface. The preferred gelled adhesive product is formed of an aqueous dispersion of components which include a natural rubber latex component, a friction reducing agent, a tackifier, an antioxidant and a gelling agent.

Abstract: A thin foil or film is laminated to a substrate with an adhesive layer therebetween thicker than the surface roughness of the substrate, the laminating and drying of the adhesive being effected with the foil contacting a smooth contact surface under a contact pressure, the rate of heat input to dry the adhesive and the pressure on the back of the substrate being controlled to maintain the vapor pressure at the interface between the film and the adhesive above atmospheric and below the contact pressure so that the foil surface of the finished laminate is as smooth as the contact surface.

Abstract: A gelled solid adhesive for coating substrates, typically paper. The adhesive can be made available in stick form and is easily applied on even coats to any surface area of the substrate. The adhesive has sufficient tack enabling the coated substrate to instantly adhere to essentially any free contact surface upon gently pressing the substrate to the free surface. The adhesive coated substrate is easily removable from the contact surface by manually lifting it therefrom. The adhesive permits readherence of the adhesive coated substrate to the same or different free contact surfaces. An adhesive coated paper substrate will readhere many times to free paper contact surface. The preferred gelled adhesive product is formed of an aqueous dispersion of components which include a natural rubber latex component, a friction reducing agent, a tackifier, an antioxidant, a gelling agent and surfactant.

Abstract: Composite materials and composite building elements have two layers:(1) a layer obtained from a vulcanizable composition based on EP(D)M and(2) a layer obtained from a vulcanizable composition based on an elastomer component consisting of 5-50% by weight of a polyoctenylene elastomer and 50-95% by weight of an elastomer, or several elastomers, selected from the group of SBR, NBR, CM and the diene elastomers.The strength of the interlayer bond attained by vulcanization welding is good to excellent.

Abstract: An anticorrosion and high shear resistant pipewrap system is described wherein a pipe surface is first coated with a primer comprised of natural rubber, resins, and a metal oxide activator dispersed in an organic solvent. The primer-coated pipe is then overlaid with an adhesive-coated polyolefin tape, the adhesive comprising a butyl-based rubber, tackifying agent and a cross-linking agent, p-quinone dioxime. The cross linking agent functions in the presence of an organo-titanate-treated metal oxide, being a catalyst such as lead dioxide, or the like, that results in high rates of cross linking in both the primer coating, the adhesive coating and the primer/adhesive interface zone. Minimal creep of the described anti-corrosion protective coating is noted in high shear stress environments.

Abstract: The invention provides an adhesive composition of the two-part separate application type comprising solutions A and B. The solution A is an aqueous solution of a high polymer having an amide bond or an imide bond within the molecule, or an aqueous dispersion obtained by adding a rubber latex and/or synthetic resin emulsion to the aqueous solution of the high polymer. The solution B is an aqueous solution of a dialdehyde compound, or an aqueous solution or dispersion obtained by adding a crosslinking agent for crosslinking the high polymer of the solution A to the aqueous solution of the dialdehyde compound.

Abstract: An insulator comprising a plurality of fins (1) or one-piece groups of fins made of elastomer and having sleeves (2) disposed end-to-end. The fins surround a central member (3) and are vulcanized. The fins form a water-tight tube whose cohesion is ensured at least by vulcanizing intermediate elastomer portions (5) which are inserted raw between vulcanized fins or one-piece groups of fins and adhere to the facing surfaces of the said sleeves by virtue of their subsequent vulcanization.

Abstract: A pedestal liner for a pedestal truck of a railway vehicle and method of making same are provided wherein such pedestal liner is of roughly U-shaped configuration having a bight and a pair of parallel legs and comprising a continuous uninterrupted backing material defining the bight and parallel legs, antifriction material for the bight adapted to engage a vertically disposed planar guide surface of an associated journal box, antifriction material for the parallel legs adapted to engage vertically disposed parallel side surfaces of the journal box and disposed on opposite sides of the guide surface, and means fixing the antifriction material against the backing material with the backing material providing optimum structural support for the antifriction material.

Abstract: Plasticized elastomer is securely bonded to a metal surface by interposing between the adhesive-coated metal surface and the elastomer a sheet of material obtained by combining adhesive with a portion of the elastomer that has been treated to remove plasticizers therefrom and heating the assembly in a mold under pressure. The sheet material is made up by dissolving a portion of the plasticized elastomer in an organic solvent, casting the solution, exposing it to a vacuum to remove the solvent and plasticizers, dissolving the de-plasticized material in liquid adhesive and casting and drying the resulting liquid.

Abstract: This disclosure relates to novel adhesive compositions and composite structures utilizing the same, wherein said adhesive compositions contain an elastomer, a chemically compatible ethylenically unsaturated monomer, a tackifier, an adhesion promoter, and optionally, pigments, fillers, thickeners and flow control agents which are converted from the liquid to the solid state by exposure to high energy ionizing radiation such as electron beam. A particularly useful application for such adhesive compositions comprises the assembly of certain composite structures or laminates consisting of, for example, a fiber flocked rubber sheet and a metal base with the adhesive fulfilling the multiple functions of adhering the flocked fiber to the rubber sheet as well as adhering the rubber sheet to the metal base.

Abstract: A tire cord dipping composition and a method of adhering textile materials to rubber, are disclosed, wherein an N-methylol group containing polymer is employed.

Abstract: A composite composed of vulcanized rubber and thermoplastic resin which adheres tightly to the rubber can be obtained by treating the surface of the vulcanized rubber with at least one of halogen, halogen generating compound and halogenoid, and bonding melted polyamide resin, polyester resin, styrene series resin or acrylic resin to the above treated rubber surface region by the injection or extrusion molding.

Abstract: A vulcanizable rubber composition comprising a rubber, a vulcanizing agent and glyoxal or a glyoxal reaction product and a method of adhering fiber or steel tire cord, are disclosed.

Abstract: The use of polysulfide rubbers cured with zinc oxide and tetramethylthiuram disulfide and other sulfur containing cure accelerators for polyisoprene rubbers in hot applied processes and articles formed thereby are disclosed. The compositions are useful as hot applied sealants and in the extrusion of hoses and similar rubber articles.

Abstract: Two preformed materials such as paper, fabrics, glass, sheet metal, at least one of which is pervious to water vapor, are joined together with a solvent-free adhesive based on a latex of a rubbery polymer. The latex is one which is stabilized with an emulsifier which forms water-insoluble compounds with zinc or cadmium ions. Included in the adhesive formulation is an ammonium or amine salt gelling agent for the latex, a zinc or cadmium ion donor compound and sufficient ammonia or a compound which releases ammonia to provide a pH of above 8 to the adhesive formulation. A surface of at least one of the preformed materials is coated with the adhesive and then contacted with a surface of the other material and held in such contact while heating to gel the latex and evaporate the water from the intersurface layer of adhesive.

Abstract: A method for making a multi-chambered flotation bag for helicopters or the like comprises forming two outer panels and at least one internal panel to substantially identical contour from flat/rubberized fabric sheet, forming at least two internal transverse wall members formed from flat rubberized fabric sheet, disposing adhesion strips for tapes along selected areas adjacent the peripheries of selected panels and wall members, and adhering the panels and wall members together to form the flotation bag structure.

Abstract: A vulcanized rubber composition containing at least 30% by weight, based on the amount of the rubber component, of syndiotactic-1,2-polybutadiene has a high adhesion, and can be easily and firmly adhered to another vulcanized rubber composition or to a porous material through a syndiotactic-1,2-polybutadiene thin film by a hot-melt adhesion process.

Abstract: A hot-melt adhesive produced from a number of polymers which have been at least partially cross-linked and which may be applied to a suitable carrier as a melt.

Abstract: Adhesion of metals to vulcanizable elastomers is promoted by a process of incorporating into the elastomer a metal deactivator and then vulcanizing the elastomeric composition while it is in contact with the metal surface.

Abstract: In a process for preparing a laminated resin product by melt-laminating (1) a modified polyolefin composition with (2) a polyester, a polyamide or a hydrolyzed copolymer of ethylenevinylacetate, the improvement comprising using as the modified polyolefin a modified polyolefin composition which comprises a mixture of 60 - 97 wt.% of a polyolefin which polyolefin comprises from 0.1 to 100 wt.% of a polyolefin modified with an unsaturated acid or anhydride content is from 0.01 to 10 wt.% of the total polyolefin content and wherein an unmodified polyolefin comprises from 99.9 to 0 wt.% of the total polyolefin content with 40 - 3 wt.% of a rubber component having 40 - 140 of Mooney viscosity 50 ML.sub.1 + .sub.4 (100.degree. C) and the product so produced.

Abstract: An improved terrazzo floor or wall construction of reduced thickness bonded and adhesively secured to an underlying sub-surface through the medium of an intermediate liquid impermeable sheet. A frangible terrazzo veneer is bonded to the liquid impermeable sheet and the sheet in turn is adhesively secured to the underlying sub-surface by a rubberized asphalt or the like elastomeric material to permit lateral movement of the sub-surface relative to the said facing veneer to obviate cracking of the veneer due to cracking or lateral movement of the sub-surface.

Abstract: A novel combined application process of thermal insulation and built-up roofing or waterproofing is provided. In this application process, a foamed thermo-plastic thermal insulating material is bonded with a membrane having a tacky compound layer on one surface thereof so that the tacky compound layer is in close contact with the foamed thermoplastic material, without causing any damage due to heating, and a built-up roofing or waterproofing is formed on the other surface of the membrane according to the conventional application process.

Abstract: Disclosed is a process for manufacturing elastic floor covering boards comprising a lower, water-permeable layer of natural or synthetic rubber particles bound together by an adhesive and a cover layer of non-woven synthetic textile fibers, which process comprises placing into a mold the cover layer of non-woven synthetic textile fibers, impregnating this layer with a resilient, heat-curable adhesive, placing the particles of natural or synthetic rubber which are likewise impregnated with said adhesive on top of the fibrous layer and subsequently compressing both layers in the mold at a temperature below 100.degree.C. and at a pressure of from 40 to 100 metric tons per square meter until the adhesive is cured. Advantageously, a woven reinforcing layer is interposed between the two layers prior to molding to provide an exceptionally strong and stable product.

Abstract: A vulcanizing agent for rubber is incorporated into a polymer which is substantially noncrosslinkable by the agent but which is fusible with rubber upon milling. The resulting polymeric mixture and a vulcanizable rubber are formed into strips which are joined together along the lengths thereof to form an elongated, two-component tape wherein the rubber vulcanizing agent is carried in the nonreactive polymer. Sections of the tape can be milled to produce a vulcanizable compound by blending the polymeric component with the rubber component, thus obviating any need for separate addition of a rubber vulcanizing agent. The tape can be wound on a reel and stored until the need for blending arises. Premature reaction of the vulcanizing agent with the rubber is prevented since it is bound within the noncrosslinkable polymer.

Abstract: Component adhesion in systems comprising (1) rubber, (2) an adhesive composition and (3) a fibrous reinforcement is greatly improved through use of an adhesive composition comprising a 1-aza-3,7-dioxabicyclo[3.3.0]octane in combination with a reinforcement of aramid fibers. The rubber systems are useful in the formation of tires, belts, hoses etc.

Abstract: Non-conjugated dienes are reacted with phenolic compounds in the presence of a Friedel-Crafts catalyst to produce poly(phenol/diene) copolymer resin having repeating alternate phenol and diene units, a number average molecular weight of 600-5000 and a glass transition temperature of 100.degree.-220.degree.C. The resin, and its partially or fully hydrogenated counterpart, can be blended with various rubbery polymers to provide adhesive compositions having improved adhesive tack.

Abstract: Method and composition for applying a surface covering to a wall or like substrate. The surface covering comprises a flexible strip or sheet of substantially dry, semi-hydrated gypsum, bonded to a re-enforcing mesh or lath. The method includes the steps of coating the rear face of the surface covering sheet with aqueous latex adhesive in an amount which will transfer sufficient water from the adhesive to the gypsum to hydrate and set the gypsum, and, at the same time, invert the latex to a tacky, adherent state; and applying the adhesive-coated surface covering to the substrate.

Abstract: Method for bonding a room temperature vulcanisable silicone rubber to a porous substrate of masonry or wood. The method involves applying to the porous substrate a primer composition comprising a cyclised rubber resin, an organic solvent and a film-forming polyester resin in a proportion of from 0 to 40% by weight based on the weight of cyclised rubber resin. The primed surface is dried and a room temperature vulcanisable silicone rubber composition of specified type then applied.

Abstract: An elastomer-based heat sealable adhesive composition and method of making the same having an improved balance of physical and chemical properties including improved peel adhesion, tack, and creep resistant characteristics, together with the capability to selectively vary such characteristics. The composition is adapted for formation in situ on a substrate by the chemical formation of an elastomer base material in the presence of a compatible resin material. The elastomer material comprises the reactive product of a reactive component and a coreactive component with the reactive component, including a liquid diene telechelic polymer material and with the coreactive component including an organic coreactive material which is capable of reacting with the diene telechelic polymer material.

Abstract: The hull of a marine vessel is protected from fouling by marine growths by a foil of anti-fouling metal such as copper or a copper alloy adhesively bonded throughout its area to the hull below the water line. The foil is conveniently applied to the hull by pressure sensitive or heat sensitive adhesive.