Abstract: The invention provides a process, and product thereof, for forming a chemically resistant fusion bonded seal between chemically dissimilar materials by use of a chlorinated polyolefin film for protective garments. The process involves placing the chlorinated polyolefin film between two dissimilar films such as a facepiece and the fabric film of the garment and applying heat and pressure. The resulting fusion bonded film composite is strong, flexible and upon the application of sufficient stress exhibits total cohesive rupture failure.

Abstract: A composite article is provided which includes a blend component having first and second surfaces and a substantially non-fluorinated polymer component adhered to the first surface of the blend component, wherein the substantially non-fluorinated polymer component has an exposed surface. The blend component includes a first hydrogen containing fluoropolymer, and a substantially non-fluorinated polymer having one or more pendant primary or secondary amine groups. Increased adhesion is observed by a peel strength value between the blend component and the substantially non-fluorinated polymer component when compared to a peel strength value between a component consisting of a fluoropolymer and a component consisting of a substantially non-fluorinated polymer having pendant primary or secondary amine groups.

Abstract: A higher-barrier acrylic/chlorinated vinyl or acrylic/chlorinated vinyl/vinyl latex adhesive component and a lower-barrier acrylic or acrylic/vinyl latex adhesive component are mixed in relative proportions and used to adhere films of low-barrier material, such as films of polyolefins, thereby providing an adhesive layer of controlled gas barrier properties.

Abstract: A method of laminating at least two gas permeable sheet materials includes: (1) providing at least a first gas permeable sheet material, wherein at least a portion of at least a surface region of the first sheet material is thermoplastic material; (2) providing at least a second gas permeable sheet material of polytetrafluoroethylene; (3) superposing the sheet materials; and (4) contacting the sheet materials with a heating means to heat the thermoplastic material to a temperature from 140° to 230° C., so as to melt the thermoplastic material and laminate the sheet materials to one another, without the application of direct pressure in the thickness direction of the sheet materials during the contacting step so as to form a gas permeable laminate.

Abstract: A composite material is described which is characterized by a substrate based on vegetable materials, in particular vegetable fibers, vegetable fiber raw materials or vegetable fiber semifinished products, and by a nanocomposite which is in functional contact with said substrate and is obtainable by surface modification of a) colloidal inorganic particles with b) one or more silanes of the general formula (I) Rx—Si—A4−x  (I) where the radicals A are identical or different and are hydroxyl groups or groups which can be removed hydrolytically, except methoxy, the radicals R are identical or different and are groups which cannot be removed hydrolytically and x is 0, 1, 2 or 3, where x≧1 in at least 50 mol % of the silanes; under the conditions of the sol-gel process with a below-stoichiometric amount of water, based on the hydrolysable groups which are present, with formation of a nanocomposite sol, and further hydrolysis and condensation of the nanocomposite sol, if desired,

Abstract: The present invention provides a process for treating a metal surface which is aluminium or an aluminium alloy in order to improve its adhesion properties which comprises treating a clean metal surface with an organosilane and exposing the surface to a laser which produces an elevated temperature on the surface of the metal.

Abstract: A fire retarding polypropylene composition comprising a copolymer of polypropylene and an ethylene/propylene rubber, and at least about 50% by weight but not greater than 60% by weight of a magnesium hydroxide coated with an anionic surface active agent, the magnesium hydroxide having (i) a strain in the <101> direction of not more than 3.0×10−3, (ii) a crystallite size in the <101> direction of more than 800 Å, and (iii) a specific surface area, determined by the BET method, of less than 20 mg2/g. The composition can be used in a fire retarding semiconductor apparatus which passes the FMRC Clean Room Materials Flammability Test Protocol.

Abstract: A method of bonding a component to glass comprising disposing a pressure-sensitive adhesive sheet material between said component and said glass so that said adhesive sheet material is adhered to said component and said glass, wherein said adhesive sheet material comprises the photopolymerization reaction product of starting materials comprising: (a) a monomeric mixture or partially prepolymerized syrup comprising at least one acrylic acid ester of an alkyl alcohol and at least one copolymerizable monomer; (b) an epoxy resin or a mixture of epoxy resins, (c) a heat-activatable hardener for the epoxy resin or mixture of epoxy resins, (d) a photoinitiator, and (e) a pigment.

Abstract: A reduction of the surface tackiness of a low-hardness thermally conductive silicone rubber sheet is performed by coating an organohydrogenpolysiloxane oil evenly on a resin film, and pasting together the oil-coated side of the resin film and an addition-cured low-hardness thermally conductive silicone rubber sheet having an Asker C hardness of from 1 to 80. Pasting can be done, for example, by passage between two rolls to supply the organohydrogenpolysiloxane oil to the surface of the silicone rubber sheet. Then, in only the surface part of the sheet, a cross-linking reaction is caused to reduce the tackiness of the sheet surface.

Abstract: A solar cell module lamination process using fluoropolymers to provide protection from adverse environmental conditions and thus enable more extended use of solar cells, particularly in space applications. A laminate of fluoropolymer material provides a hermetically sealed solar cell module structure that is flexible and very durable. The laminate is virtually chemically inert, highly transmissive in the visible spectrum, dimensionally stable at temperatures up to about 200° C. highly abrasion resistant, and exhibits very little ultra-violet degradation.

Abstract: A tape carrier package is stacked on an array substrate while interposing a thermosetting type anisotropic conductive adhesive between a plurality of first conductors formed on the end portion of the array substrate and a plurality of second conductors formed on the tape carrier package. Subsequently, a heater tool of a thermocompression bonding apparatus applies pressure and heat to the anisotropic conductive adhesive via the tape carrier package. In this case, the anisotropic conductive adhesive is slowly heated up to its hardening end temperature to harden after it softens, thereby thermocompression bonding the first and second conductors to each other by the anisotropic conductive adhesive.

Abstract: The present invention provides a method of adhering adherends, including (i) providing at least two adherends at least one of which is made of a flexible material, and (ii) joining the adherends together to form a structure using a heat-resistant adhesive composition containing mainly 1) a polycarbodiimide resin and an epoxy resin, or 2) a polycarbodiimide resin, an epoxy resin and a curing agent for the polycarbodiimide resin, or 3) a polycarbodiimide resin, an epoxy resin and a curing agent for the epoxy resin. The heat-resistant adhesive composition can be applied under mild conditions, and the resultant structure has excellent heat resistance and chemical resistance, and has superior adhesion strength particularly at high temperatures.

Abstract: The method of this invention concerns bonding side-to-side glass or plastic building blocks to obtain decorative and/or functional modular sub-assemblies, walls, panels, floors, windows, skylights, etc., using flexible, light-weight, elongated, adhesive tape strips to adhesively bond together at least portions of complementary block side surfaces to construct multi-tier building block units.

Abstract: A processes for adhering a vulcanized rubber to a vulcanized rubber or an unvulcanized rubber. Adhesion of vulcanized rubbers to each other is conducted by using at least one of the vulcanized rubbers before vulcanization thereof according to steps of: (1) laminating a sheet material which can easily be peeled from a surface of a rubber after vulcanization to a rough surface of the rubber before vulcanization, (2) vulcanizing a resultant laminate, (3) removing the sheet material from the vulcanized laminate immediately before adhesion of the vulcanized rubber in the laminate to another vulcanized rubber, and (4) adhering the vulcanized rubbers to each other according to a method of adhesion. The adhering of the vulcanized rubbers to each other is also conducted by using a rubber composition for adhesion inserted between the vulcanized rubbers without procedures using the sheet material.

Abstract: The invention relates to a method of high frequency welding of non-polar thermoplastic elastomers characterized in that said elastomers comprise a polar modifier. Furthermore, the invention relates to shaped articles obtainable by said method.

Abstract: A stable colloidal aqueous dispersion of a partially and homogeneously crosslinked polyurethane/polyurea is made by inserting an integral emulsifier and an internal dispersion stabilizer into a polyurethane having a polyester- or polycaprolactone diol backbone and chain extending and crosslinking it with a mixture of diamine and triamine having a functionality of from 2.05 to 2.18. A highly concentrated solution of a dihydroxycarboxylic acid in a solvent such as N-methyl pyrrolidone permits the hydroxyl groups to react thoroughly and quickly with an isocyanate-terminated polyurethane and, consequently, a minimal amount of the solvent is present in the adhesive after water is removed from the aqueous dispersion. The adhesive is thus heat resistant at 70° C. despite its relatively small degree of crosslinking.

Abstract: An improvement in a method of bonding copper and a resin together wherein a copper oxide layer is formed on the surface of copper by the oxidation of metallic copper, the copper oxide layer is reduced to metallic copper with an aqueous reducing solution containing at least one amine borane represented by the general formula: BH3NHRR′ (wherein R and R′ are each a member selected from the group consisting of H, CH3, and CH2CH3), and the metallic copper is bonded to a resin. According to the improvement, a reducing stabilizer is added to the reducing solution in an amount sufficient to decrease consumption of the amine borane during reduction to a level less than that consumed in the absence of the reducing stabilizer during the course of the copper oxide reduction process, wherein the stabilized reduction process is initiated in a reasonable time and the metallic copper layer resulting from the stabilized reduction process is resistant to acid attack.

Abstract: A minimum visibility seam tape and method of joining at least two substrates with the tape. The substrates joined typically are sign faces or awnings comprising a composite of thermoplastics and a woven scrim. The seam tape is a woven or nonwoven scrim embedded in or coated with a thermoplastic polymer.

Abstract: An insulated glass sealant having the best characteristics of polysulfides and polyurethanes rather than the worst is made from a polysulfide-based polyurethane which, in turn, is derived from a mixture of hydroxyl terminated polysulfides having a structure represented by the following formula: RCH2CH2OCH2OCH2CH2S[SCH2CH2OCH2OCH2CH2S]nSCH2CH2OCH2OCH2CH2R. wherein R═HO(CH2)ySS, y is from 2 to 6, and n is such that the molecular weight is from about 2500 to about 4000. The improved sealant of this invention is prepared by a one-step procedure wherein the hydroxyl terminated polysulfide of said formula is reacted with a polyisocyanate at a ratio between about 1:1 and about 1:1.2 on an equivalents basis. The hydroxyl-terminated polysulfide is made by splitting a polysulfide having a molecular weight about 30 times greater in an aqueous latex dispersion with a dithiodialkylene glycol and sodium sulfite.

Abstract: Boric acid is mixed, preferably at 0.1 to 10 w. % in relation to the solid content, into a sprayable dispersion based on an acrylic acid ester copolymer and a colloidal chloroprene polymerisate. The spray is applied to at least one or both substrate surfaces, the substrate surfaces to be glued are laid against each other wet and pressed together with at least 0.1 N/cm2 for at least approximately 0.5 seconds. The sprayable dispersion is preferably used for gluing foams, after a short compression the initial adhesion is so high that further processing or transport can be begun immediately.