Abstract: The durability of a bonded aluminium alloy and/or Alclad (Trade Mark) material joint can be improved by a two stage pre-treatment process in which after the surfaces to be joined have been degreased, a first solution BTESE and/or BTMSE in water, with or without methanol and/or ethanol, is applied to the degreased surfaces dried and coated with a second solution of &ggr;-glycidoxypropyltrimethoxysilane, an amino silane, &ggr;-aminopropyltriethoxysilane and/or trimethoxyvinylsilane in water with or without methanol and/or ethanol and drying prior to the application of an epoxy adhesive coating to the dried second solution surfaces, bonding and curing.

Abstract: A method for making an improved pressure sensitive adhesive coated laminate is disclosed. The method involves coating a sheet having a release surface thereon with a pressure sensitive adhesive to form a laminate, drying or curing the pressure sensitive adhesive and marrying the laminate to the inner surface of a facing layer. A material comprising a mixture of substantially water-insoluble and adhesive incompatible polysiloxane (i) and water soluble and adhesive compatible polysiloxane (ii) is included so as to produce a low zero-minute peel value in the pressure sensitive adhesive layer and is intimately mixed with the pressure sensitive adhesive prior to the adhesive being coated on the release surface of the sheet. The resulting laminate can be easily applied to a substrate and removed and repositioned or straightened, if necessary, and provides a superior increase in peel value over a period of time to produce a more permanent installation.

Abstract: The bonding of components is facilitated by a conductive pattern which generates heat upon being irradiated with microwave or RF energy. The electrically conductive pattern is positioned on a first component surface and a curable resin having adhesive properties is applied thereto. A second component surface is placed in contacting relation with the resin and the conductive pattern is irradiated with microwave or RF energy to facilitate curing wherein the components are bonded together along the pattern. The conductive pattern can be utilized without adhesive resin wherein heat generated via the application of microwave or RF energy causes components to fuse together. The conductive pattern can be enveloped by polymeric material, wherein the polymeric material becomes the adhesive for bonding components when microwave or RF energy is applied.

Abstract: A polyisocyanate curing agent for a laminate adhesive, which comprises a hydrophilic polar group-containing polyisocyanate; a laminate adhesive excellent in heat-resistance, durability and adhesiveness to polyolefin film which adhesive comprises the above hydrophilic polar group-containing polyisocyanate and an active hydrogen-containing compound; and use of an adhesive comprising the above polyisocyanate curing agent and an active hydrogen-containing compound in film lamination.

Abstract: A web or sheet product is provided which is coated on at least a portion of its surface with a bond-enabling material for adhering toner particles on the surface of the sheet. The sheet product can be used as a mailer or confidential form which is sealed using toner particles as the adhesive. The bond-enabling material may be a polymer which is coated on the sheet as a liquid and then cured to form a film on the surface of the sheet. The bond-enabling material is resistant to melting or degrading when exposed to temperatures used for fusing toner particles, and additionally may act as a tie coat to enhance the adhesion of toner particles to the surface of the sheet. The bond-enabling material may be coated on the peripheral edges of the sheet, and toner particles are printed over the bond-enabling material on the peripheral edges of the sheet. The sheet is folded and sealed by the application of heat and pressure to the edges of the sheet.

Abstract: Paper stock (e.g. about 3 mils thick) is highly calendered to form a paper label substrate having first and second faces, with indicia imaged on the first face, a coating of adhesive release material over the imaged indicia, and a pressure sensitive adhesive on the second face. The release coating may be silicone release coating, and the adhesive permanent acrylic adhesive. The paper stock label substrate desirably has a moisture content of between about 6-8%, the release coat and adhesive sealing the moisture within the paper stock. The pressure sensitive adhesive is applied to a blow molded plastic article while the article has a temperature of above 120° F. The article is cooled so that the label conforms to the surface of the article without visible flaws (such as lifted edges, air bubbles, or puckering).

Abstract: The invention provides a method for fastening a polymeric label to a glass, plastic or metal container or surface by means of a water based adhesive composition by the following steps: (a) applying a layer of a hydrophilic solid material to a polymeric label to form a hydrophilic layer; (b) applying water or a water based adhesive to the hydrophilic layer to form a fastenable polymeric label; (c) fastening the fastenable polymeric label to a glass, plastic or metal container or surface; and (d) allowing said the polymeric label to dry on the glass, plastic or metal container or surface.

Abstract: The pH-modified monomer and polymer compositions are useful as biomedical and surgical adhesives, sealants, implants and bioactive agent release carriers or matrices. They comprise a monomer or polymer; and an effective amount of an acidic or basic pH modifier effective to modify the pH of an immediate in vivo environment of the composition to a pH range at which the polymer biodegrades at a different rate than at physiologic pH. The invention also relates to in vivo applications in which surfaces are joined or treated with such pH-modified biocompatible compositions.

Abstract: A process for producing an article with a label, which comprises attaching, to an article, a heat-sensitive and pressure-sensitive adhesive label having an adhesive layer composed of a pressure-sensitive adhesive composition, which is an aqueous emulsion type composition comprising: (A) a water-soluble resin obtained by neutralizing a resin having an acid value of 1 meq/g or more, with a base, and (B) a polymer having an acid value of 0.6 meq/g or less and a glass transition temperature of −20° C. or lower, obtained by emulsion polymerization of a radical-polymerizable monomer, and which, when made into an aqueous film and dried at a temperature lower than 60° C., becomes a film (1) of two-phase structure wherein particles composed of the component (B) are dispersed in a continuous phase composed of the component (A) and, when the film (1) is heated to a temperature of 60° C.

Abstract: In one embodiment, the present invention relates to a method of increasing resin dust resistance of metal foil comprising contacting the metal foil with an inert silane, titanate or zirconate compound to form a resin dust resistant film having a thickness from about 0.001 microns to about 1 micron on a surface of the metal foil. In another embodiment, the present invention relates to a method of treating metal foil comprising contacting a first side of the metal foil with a hydrocarbylsilane solution to form a resin dust resistant film on a surface of the metal foil, the hydrocarbylsilane solution comprising from about 0.01% to about 10% v/v of a hydrocarbylsilane; and laminating a second side of the metal foil to a prepreg.

Abstract: An adhesive and coating composition which is suitable for use in an aqueous environment is provided and which comprises a resin-plasticizer modified acrylonitrile-butadiene elastomer, dissolved in low-toxicity solvent. A method for repairing plastic sheet materials, particularly plastic sheet materials such as polyethylene (LDPE, MDPE), polypropylene (PP), polyvinyl chloride (PVC) and polyvinylidene chloride (PVDC),using the adhesive and coating composition wherein certain controls are effected is also provided. Such an adhesive composition provides a fast and extremely effective means for repairing perforations and tears in plastic sheet materials, is long lasting, safe and does not discolor over time.

Abstract: A plaster agent comprising a water impermeable or water semipermeable film (layer a), one tackifier layer (layer b) laminated on one surface of said layer a, and another tackifier layer (layer d) laminated on said layer b through an intermediary knitted fabric having a weight per unit area of 10 to 100 g/m2 (layer c) comprising hollow fibers having pores extending therethrough in the outer peripheral direction and containing substantially no medicine internally thereof, and at least one of said layer b and said layer d containing a vaporizable or non-vaporizable medicine.

Abstract: Adhesive formulations are blends of aqueous polymer dispersions and a hydrophobic plasticizer. The blended dispersed polymers include at least one hard sulfonated polyester urethane, at least one soft non-sulfonated polyester urethane, and at least one polar non-polyurethane water-based polymer or copolymer. A high molecular weight elastomeric non-sulfonated polyurethane polymer and a crosslinker are optional further components in the blend. The formulations are useful as non-heat activating, one-component adhesives which generate excellent green strength, water and heat resistant bonds.

Abstract: Corrugating adhesives of the carrier, no-carrier and carrier-no-carrier type having excellent dry pin adhesion, green strength and improved water resistance are prepared with solubilized fiber as a complete or partial substitute for starch. The adhesive composition contains solubilized fiber and, optionally, from about 0.1% to about 99% added starch by weight based on total solubilized fiber and added starch. When the adhesive is the carrier type or the carrier-no-carrier type, the fiber, preferably corn fiber, can be solubilized in situ during the process of preparing the carrier phase.

Abstract: The bonding of two materials through hydroxide-catalyzed hydration/dehydration is achieved at room temperature by applying hydroxide ions to at least one of the two bonding surfaces and by placing the surfaces sufficiently close to each other to form a chemical bond between them. The surfaces may be placed sufficiently close to each other by simply placing one surface on top of the other. A silicate material may also be used as a filling material to help fill gaps between the surfaces caused by surface figure mismatches. A powder of a silica-based or silica-containing material may also be used as an additional filling material. The hydroxide-catalyzed bonding method forms bonds which are not only as precise and transparent as optical contact bonds, but also as strong and reliable as high-temperature frit bonds. The hydroxide-catalyzed bonding method is also simple and inexpensive.

Abstract: A contact adhering method comprising the steps of: (1) applying a layer of a moisture curable adhesive to at least one of two adherends; (2) maintaning the two adherends in non-contact with each other for a period of time until the surface of the layer of moisture curable adhesive develops tack as a result of exposure to atmospheric moisture; and (3) bringing the two adherends into contact with each other in a tack range.

Abstract: A method for adhesively joining or sealing two substrates which comprises: (1) applying at about 50° to 150° C. onto a substrate a solvent-free, moisture curable urethane hot melt adhesive composition comprising the polyisocyanate prepolymer reaction product of (a) a polyol and (b) a polyisocyanate; (2) contacting the adhesive disposed on the substrate to a second substrate such that a green bond is formed, and (3) exposing the adhesive bond to ambient moisture causing a crosslinking reaction within the adhesive, thereby forming a moisture-cured bond. The improvement is characterized in that the polyisocyanate prepolymer is prepared by reacting a polyisocyanate with a functionality of at least 2 with a polyol with a functionality of at least 2, the reaction product comprising at least 90 wt % “perfect” prepolymer and less than 2 wt % unreacted isocyanate monomer and the prepolymer having a free NCO functionality ranging from 0.2 to 8 wt %.

Abstract: An apparatus is disclosed for transporting panel substrates with adhesive on both sides such that the panel substrates may be used in the manufacture of decorative panels. The apparatus includes a adhesive applicator which coats a panel substrate with adhesive. The apparatus also includes a first edge support member and a second edge support member located adjacent an outlet end of the adhesive applicator such that edges of the panel substrate are respectively supported by the first edge support member and the second edge support member without interfering with the adhesive being applied to the panel substrate. The apparatus further includes a support for selectively supporting the coated panel substrate and releasing the panel substrate while only contacting edges of the panel substrate so as not to substantially interfere with the adhesive applied to the panel substrate by the adhesive applicator. A method for manufacturing a panel is also disclosed.

Abstract: In manufacturing a vehicle lamp by a hot plate melt-bonding method whereby a lamp body comprising thermoplastic resin is melted by pressing onto it a heated hot plate, then joining the lamp body and a lamp lens by press-fixing the melted part onto the lamp lens, improvement is effected in respect of thread drawing of the resin constituting the lamp body by employing a lamp body that is molded of a resin composition (C) as chief constituent whereof a total of 100 weight parts consist of 80˜5 weight parts of a specified graft copolymer (A) obtained by graft polymerization of an &agr;,&bgr;-unsaturated acid glycidyl ester compound and 20˜95 weight parts of vinyl copolymer (B).

Abstract: A laminated multilayer film substrate for use in the production of banknotes includes a first layer comprising (a) a first layer having inner and outer sides, comprising at least about 50 weight percent of a high density polyethylene having a density of at least about 0.94, said first layer being oriented in the transverse direction (TD) to a degree which is at least three times greater than the degree of orientation present in the machine direction (MD); (b) a second layer having inner and outer sides, comprising at least about 50 weight percent of a high density polyethylene having a density of at least about 0.