Abstract: The peelable block includes a stack of sheets, each one of a predetermined thickness. The stack of sheets includes at least one group of transparent successive sheets. The stack of sheets includes an identification sheet on which at least one distinctive sign is formed, arranged so as to be visible through a group of successive transparent sheets.

Abstract: A marking film exhibiting good ability for tracing curved surfaces when it is to be stuck to steeply curved three-dimensional portions without entrapping air bubbles at the film edges when an over-clear coating is applied thereon after it has been stuck. The marking film has a marking component to be transferred onto an article via an adhesive layer, wherein the total thickness of the marking film is in the A range of from about 50 &mgr;m to about 300 &mgr;m, and the modulus of elasticity thereof is in the range of from about 2 kgf/mm2 to about 25 kgf/mm2 as measured under a condition where the marking film is elongated at a tension speed of 300 mm/min. into an elongation percentage in the range of 0 to about 10%.

Abstract: Multilayer films are contemplated. Specifically, films containing 3, 4, 5, 6 or more layers. Anti-block will be included in a tie layer, contiguous to a skin layer and a core layer. The film may contain one or two skin layers. If there are two tie layers, the anti-block may be found in one or both. Metallized films made from the multilayer films are also contemplated. Use of the multilayer films in packaging, imaging, or labeling, is further contemplated.

Abstract: A heat sealable packaging film producing a peelable seal is formed from a blend of 99 to 75 weight percent of a copolyester and 1 to 25 weight percent of an epoxy-containing impact modifying polymer. The copolyester has a diacid component of at least 50 mole percent terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, or mixtures thereof and diol component of about 90 to 35 mole percent ethylene glycol and 10 to 65 mole percent of at least one of diethylene glycol or 1,4-cyclohexanedimethanol.

Abstract: A biaxially oriented polyester film capable of lining the interior and/or exterior of a container, including a polyester containing about 93 mol % or more of ethylene terephthalate. The film has a breaking elongation in the machine direction. (S MD) and the breaking elongation in the transverse direction (S TD), satisfying the relationships 140%≦(S MD+S TD)/2≦300% and |S MD−S TD|≦60%. The film is capable of lining the interior and/or exterior of food containers, especially on the inner and outer faces of metallic cans, since the film exhibits excellent formability, impact resistance and taste properties.

Abstract: A metal film, particularly, a stainless steel film having been not subjected to roughing treatment, and an aromatic polyimide substrate film having a thermoplastic surface can be combined with a high bonding strength to form a metal film/aromatic polyimide film laminate, utilizing an amorphous aromatic polyimide film of 0.05 to 3 &mgr;m thick which has a glass transition temperature in the range of 200 to 300° C.

Abstract: A label for a container has a transparent first foil (2) consisting of a transparent nonslip material (4), which can be a thermoplastic elastomer, a transparent second foil (3) consisting of a transparent material (5) with tensile strength, such as polypropylene, and an adhesive layer (9). The second foil (3) is arranged between the first foil (2) and the adhesive layer. The second foil (3) is provided with an imprint (17.3) on a side facing the adhesive layer (9) and the imprint (17.3) is embedded in the adhesive layer. In another embodiment the label includes a transparent foil (21), which is made of a transparent material (24) with tensile strength, a nonslip coating (22) on a first side (34). The coating (22) is preferably a lacquer coating (23). These labels provide a nonslip gripping surface on a container and are dimension stable, which facilities imprinting.

Abstract: In the multilayer volume hologram 1 of the invention, the adhesive layer 5, volume hologram 6 and surface protective film 7 are laminated on the application member 2 in this order, and the breaking strength of the hologram layer should be larger than the peel strength between the surface protective film and the volume hologram layer and smaller than the peel strength with which the hologram layer is peeled off the application member and the breaking strength of the surface protective film. This multilayer volume hologram provides a more improved protection for the volume hologram. A portrait replacement or falsification of an information area ensures that the volume hologram layer can break down. Thus, more reliable counterfeit-proofness is achievable.

Abstract: A transparent laminate is constituted by a transparent substrate, a low refractive index transparent thin film formed on a surface of the transparent substrate, between three and five combination layers laminated successively on a surface of the first low refractive index transparent thin film, another high refractive index transparent thin film formed on a surface of the combination layers, and an outermost layer. The combination layers has high refractive index transparent thin films and silver type transparent electrical conductor thin films, each combination layer having one high refractive index transparent thin film and one silver type transparent electrical conductor thin film. The outermost layer is stuck through a transparent adhesive agent layer onto a surface of the high refractive index transparent thin film farthest from the transparent substrate.

Abstract: A building material is provided in which fiber-cement is laminated to gypsum to form a single piece laminate composite. This single piece laminate composite exhibits improved fire resistance and surface abuse and impact resistance, but achieves these properties without the excessive weight and thickness of two piece systems. Additionally, because of the reduced thickness, the preferred laminate building material is easier to cut and is quicker and easier to install than two piece systems. Furthermore, forming the fiber-cement and gypsum into a single piece laminate eliminates the need to install two separate pieces of building material, thereby simplifying installation. In one embodiment, a ⅝″ thick laminate composite is provided in which a ½″ thick gypsum panel laminated to a ⅛″ thick fiber-cement sheet, the laminate composite having a fire resistance rating of 1 hour when measured in accordance with ASTM E119-98.

Abstract: An aromatic polyimide film of polyimide composed of a 3,3′,4,4′-biphenyltetracarboxylic acid component and a p-phenylenediamine component, which has a thickness of 35 to 55 &mgr;m and is employed for manufacturing a polyimide film/metal film laminate, preferably has a linear thermal expansion coefficient of 17×10−6 to 24×10−6 cm/cm/° C. (TD) in the temperature range of 50-200° C., and a modulus of tensile elasticity of 700 kgf/mm2 or more (TD), and has a surface having been subjected to discharge treatment.

Abstract: The present invention provides a light and thin backside covering material for a solar cell module which is excellent in moisture resistance and durability and has a good insulator without causing a short circuit with underlying wire nor leak current. Also the invention provides a durable and high performance solar cell module using this backside covering material as a rear surface protection member. The backside covering material for a solar cell module is a three-layer laminated film, wherein a moisture resistant film is sandwiched with two films having heat resistance and weather resistance. A deposited layer 5 of inorganic oxide is formed on a surface of a base film 4 to make the moisture resistant film 3.

Abstract: A versatile method for the manufacturing of image transfer sheets which provide users with cold transferring images without using supplemental heat in the course of image transfer to a wide variety of substrates includes printing an image with water-based ink onto an image transfer sheet that has a coating of water-accepting adhesive. A method of manufacturing image transfer sheets includes first applying a water impermeable layer onto a flexible substrate. A layer of water-activatable adhesive is applied upon the water impermeable layer. The adhesive is then dried in a dryer with dehumidified air. A water permeable detack layer is then applied upon the layer of adhesive. In a particular embodiment, the sheet further includes a water-accepting image holding layer in between the water-accepting adhesive layer and the water impermeable layer. The image holding layer becomes water-resisting when heated to within a range of activation temperatures.

Abstract: A self-adhesive laminate for sealing window frames includes an aluminum layer having a first side and a second side, a polyester layer adhered to the first side of the aluminum layer, an adhesive layer adhered to the second side of the aluminum layer, and a release paper overlying the adhesive remote from the aluminum layer. This laminate reduces or eliminates the overheating problems common in prior art tapes.

Abstract: In a green laminate body including a plurality of base green layers and a plurality of constraining green layers for forming a monolithic ceramic substrate by using a non-shrinking process, when the thicknesses of the base green layers differ from each other, a thicker base green layer shrinks largely during sintering, and hence, the resulting monolithic ceramic substrate may warp in some cases. In order to solve this problem, the constraining green layers, which are in contact with the main surfaces of the individual base green layers, have different thicknesses so that a relatively thicker constraining green layer is in contact with a relatively thicker base green layer, and a relatively thinner constraining green layer is in contact with a relatively thinner base green.

Abstract: A laminated glass having a surface density of at most 12 kg/m2 and comprising a plurality of glass sheets laminated one on another with an interliner provided between the respective adjacent glass sheets, wherein the interliner has an ability to shield infrared rays and an ability to insulate sounds having a frequency of 5,000 Hz.

Abstract: The defect known as “applesauce” is eliminated from laminated glass structures which include an intermediate plastic film carrying an energy reflective layer by adhering this film to one of the glass sheets of the laminate with an adhesive layer which is less than 5 mils (0.127 mm) thick.

Abstract: Apparatus for multi-dose delivery of preservative-free pharmaceuticals includes a film laminate flexible container for holding and maintaining a sterile drug formulation. A nozzle disposed within the container and in fluid communication therewith provides for dropwise dispensing of the formulation from the flexible container. The nozzle includes an interface established by inner and outer portions of the nozzle which is normally sealed. The nozzle out of portion is sufficiently flexible to enable expansion thereof and passage of the dry formulation therethrough by a piston which withdraws selected volumes of the formulation from the container.

Abstract: An optical-use adhesive film includes a substrate film formed of a biaxially oriented polyester film; and a polymeric adhesive layer provided on at least one surface of the substrate film. The optical-use adhesive film has a haze of 1.0% of less, and the substrate film contains foreign substance particles having a maximum size of about 20 &mgr;m or more at a ratio of about 10/m2 or less.

Abstract: The invention is a tamper indicating device including a backing. The backing includes a first phase and a second phase. The backing is normally light transmissive, but a peeling force causes the backing to internally delaminate and become opaque. A first skin layer is fixed to the backing wherein the skin layer minimizes pre-destruction of the backing. A layer of adhesive is applied to the first skin layer, which can be affixed to a substrate.

Abstract: A multilayer, heat-shrinkable food packaging film useful for forming a post packaging pasteurization bag. The film includes at least three layers: 1) a first outer layer formed from a resin composition having a Vicat softening point of at least 100° C., 2) a second outer layer having one or more thermoplastic gloss materials of polyester, ethylene/alpha-olefin copolymer having a melt index of greater than 1 g/10 minutes, styrene/butadiene block copolymer, and ethylene/styrene random copolymer, and 3) one or more inner layers between the first and second outer layers. At least one of the inner layers includes an ethylene/alpha-olefin copolymer. The film has a total free shrink of at least 40% at 85° C. If the second outer layer includes polyester, then each of the inner layers of the multilayer film is devoid of a weight amount of polyamide or polyester greater than the weight amount of polyester in the second outer layer.

Abstract: A unitary stack of paper sheets has alternating individual paper sheets and double release liners which are releasably bonded together in a manner whereby an individual paper sheet is easily removed and used as a base. Each paper sheet in the unitary stack has a pressure sensitive adhesive partially covering each face thereof in approximate aligned areas of the respective faces. In use, an individual paper sheet is readily removed from the unitary stack and one or more release liners removed from the individual sheet to fully expose the front face and the back face of the individual sheet. The front face or the back face of the individual sheet is then adhered to the substrate, and an item posted on its opposed face.

Abstract: A separator for an electrochemical fuel cell provides a path for a fuel gas or an oxidative gas to an electrode and functions as a wall of a unit cell of the electrochemical fuel cell. The separator comprises a conductive metal plate, a conductive coating membrane, and a tight coating membrane. The conductive coating membrane coats the conductive metal plate where the separator contacts the electrode. The tight coating membrane coats the conductive metal plate where the conductive coating membrane does not coat the conductive metal plate. A conductivity of the conductive coating membrane is higher than the tight coating membrane, and the tight coating membrane has a tighter adhesion to the conductive metal plate than the conductive coating membrane. The conductive coating membrane comprises carbon, a precious metal, or an alloy of nickel and chromium. The tight coating membrane comprises a close-grained resin.

Abstract: An aromatic polyimide laminate composed of an aromatic polyimide composite film, a metal film, and a release film is disclosed. The aromatic polyimide composite film is composed of an aromatic polyimide substrate film and two thermoplastic aromatic polyimide layers. Each thermoplastic layer is fixed to each surface of the substrate film. The substrate film has no glass transition temperature of lower than 350° C., and the thermoplastic aromatic polyimide layer has a glass transition temperature of 190-280° C. The metal film is fixed, with no intervening adhesive layer, to one thermoplastic aromatic polyimide layer at a 90° peel strength of 0.8 kg/cm or more and the release film is fixed, with no intervening adhesive layer, to another thermoplastic aromatic polyimide layer at a 90° peel strength of 0.001-0.5 kg/cm, under such condition that the latter peel strength is one half or less of the former peel strength.

Abstract: A release liner providing more roll stability (i.e., the coils forming the roll are less likely to fall apart when the roll is held suspended along its outer circumferential edge) when used with double-sided tape having a heat activated adhesive (“HAA”) side and a pressure sensitive adhesive (“PSA”) side. The release liner includes a front liner side comprising a release layer in contact with, bonded to and readily removable from the PSA side and a back liner side comprising a roll stability layer. The roll stability layer comprises an ethylene vinyl acetate and contacts the HAA side when the adhesive tape assembly is formed into a roll.

Abstract: A flexible metal foil laminate sheet wherein a polyimide layer comprises a polyimide laminate having a three-layer structure in which thermoplastic polyimide layers are formed on both the surfaces of a polyimide film; metal foil layers are heated and pressed against both the sides of the polyimide laminate; and the thickness of the thermoplastic polyimide layer is 100% or more of an average roughness at 10 points on the surface of the metal foil which contacts the thermoplastic polyimide layer; and a method for manufacturing the flexible metal foil laminate sheet. According to the present invention, there can be manufactured the flexible metal foil laminate sheet in which a necessary and sufficient adhesive force is present in an interface between a metal foil and an insulating layer and which is excellent in heat resistance, chemical resistance, electrical properties and the like.

Abstract: The present invention relates to a multilayer thermoformable composite synthetic veneer film, furniture parts produced therefrom, and a process for producing the same. The base layer comprising polyolefin has a thickness of 100 to 500 &mgr;m and a particular composition and is composed of at least three different polyolefins. The film also includes at least one intermediate layer in the form of at least one primer layer, bonding layer or bonding film or, respectively, bonding layer; an optional printing layer, coloring layer or color-printing layer arranged over part or all of the surface; at least one polyester-containing single- or multiple-layer-structure layer or film; at least one bonding layer, adhesion-promoting layer or reactant layer on the side of the base layer that is to be applied to a substrate; and a surface-covering layer on the top of the film.

Abstract: Disclosed herein is an anti-fogging coating formed on the surface of an optical substrate, wherein the anti-fogging coating comprises a water-absorbing film and a porous film in the order near to the surface of the substrate.

Abstract: An intrusion resistant laminated glazing, suitable for automotive use, comprises an impact resistant ply of rigid thermoplastic polyurethane sensitive to ultra-violet radiation and, outside said ply, an ultra-violet absorbing or reflecting ply. The ultra-violet absorbing ply may be of thermoplastic polyurethane interlayer material which serves to bond the rigid thermoplastic polyurethane ply to outer glass plies. By using interlayer materials of low modulus to bond the rigid thermoplastic ply to outer glass plies, a product with good impact resistance and intrusion resistance is achieved.

Abstract: A double-faced adhesive tape without release liner is provided. A weakly adhesive layer 12 having a relatively weak adhesive force is formed on one face of a resin film 11 and a strongly adhesive layer 13 having a stronger adhesive force than that of the weakly adhesive layer 12 is formed on the other face and the assembly is formed into a roll of a double-faced adhesive tape 5. The weakly adhesive layer 12 is formed after the surface of the resin film 11 has been subjected to a rubbing treatment to increase the adhesive force between them, so that the weakly adhesive layer 12 and the strongly adhesive layer 13 are separated without using a release liner when the tape is rolled up.

Abstract: A metal film, particularly, a stainless steel film having been not subjected to roughing treatment, and an aromatic polyimide substrate film having a thermoplastic surface can be combined with a high bonding strength to form a metal film/aromatic polyimide film laminate, utilizing an amorphous aromatic polyimide film of 0.05 to 3 &mgr;m thick which has a glass transition temperature in the range of 200 to 300° C.

Abstract: The invention relates to a composite glazing material of the type including two sheets of glass and an interlayer of transparent plastic of greater thickness than the thickness of the sheets of glass, characterized in that the plastic is capable of adhering to the glass. The glazing material has a total thickness smaller than 5 mm, a ratio of the thickness of the interlayer to the thickness of the sheets of glass of between 1 and 10, a mass per unit area lower than 6 kg/m2 and a Young's modulus higher than 30 GPa at a total thickness of glazing material of 3 mm.

Abstract: A flexible aromatic polyimide film/metal film composite sheet is composed of a multi-layered polyimide film having a highly heat-resistant aromatic polyimide layer to one surface of which is bonded another aromatic polyimide layer (in which the multi-layer polyimide film is prepared by simultaneous casting), and a metal film which is bonded to the latter polyimide layer by heating under pressure and subsequent cooling under pressure using a double belt press.

Abstract: A unitary stack of paper sheets has alternating individual paper sheets and individual release liners which are loosely bonded together in a manner whereby an individual paper sheet is easily removed and used as a base. Each paper sheet in the unitary stack has a pressure sensitive adhesive partially covering each face thereof in approximate aligned areas of the respective faces. A back face of the individual sheet is adhered to a substrate while a front face holds an item for posting. In use, an individual paper sheet is readily removed from the unitary stack, adhered on its back face to the substrate, and then an item posted on its front face.

Abstract: A pressure-sensitive sealing tape product for adhering to various items in applications involving taping and sealing, and having sufficient body to permit dispensing from a conventional pull and tear tape dispenser. The tape includes a paper layer; a water-impermeable plastic film layer having a first corona-discharge treated surface which is adhesively laminated to the paper layer to form a paper-plastic film laminate having first and second opposed outer surfaces; and an exposed layer of a pressure-sensitive adhesive coating on one of the first or second outer surfaces. The plastic film portion of the laminate has a strength sufficient to allow the film to be stripped in one piece from an item to which the laminate is adhered. The tape product may, if desired, additionally comprise a layer of a release agent upon an uncoated one of the first and second opposed outer surfaces of the laminate.

Abstract: An emblem for embroidery stitching directly to a substrate is disclosed which provides an emblem which can be readily embroidered. The emblem includes a fabric layer with a thermoplastic adhesive coating one side of the fabric layer and a pressure sensitive adhesive coating the thermoplastic adhesive to provide an emblem which can temporarily adhere to a substrate. The emblem can thus be temporarily secured during embroidery and prevent distortion of the emblem. Following embroidery, the emblem is heat-sealed to a substrate and the thermoplastic adhesive coating penetrates through the pressure sensitive adhesive for attachment of the emblem to the substrate.

Abstract: A composite sheathing material comprises a first layer of paperboard having a layer of a permeable resin on a surface thereof, a core layer of paperboard, a first adhesive layer positioned intermediate and adhered to the first layer of paperboard and the core layer of paperboard, said first adhesive layer including a plurality of apertures therethrough, a second layer of paperboard having a second layer of a permeable resin on a surface thereof, and a second adhesive layer positioned intermediate and adhered to the second layer of paperboard and the core layer of paperboard, said second adhesive layer including a plurality of apertures therethrough.

Abstract: A laminated polyester film stretched in at least one direction, comprising:a polyester support, andat least one enhanced adhesion layer laminated on the polyester support, comprising a composition comprising:(1) an aromatic copolyester (A1) having a water-dispersible functional group, a polyvinyl alcohol resin (B1), and a vinylpyrrolidone copolymer resin (C1); or(2) an aromatic copolyester (A1) having a water-dispersible functional group, a polyvinyl alcohol resin (B1), and a polyglycerol polyglycidyl ether (C2); or(3) an aqueous-type polyurethane (A3), a polyvinyl alcohol resin (B3), and inert particles wherein the thickness (L) of the adhesion layer and the average particle diameter (d) of said inert particles satisfies the equation1/3.ltoreq.d/L.ltoreq.3.

Abstract: The present invention is a laminated glazing comprising a rigid thermoplastic polyurethane sheet or film sandwiched between and adhering to an outer glass sheet and an inner glass sheet. This glazing can be made to be sufficiently thin to make it particularly suitable for intrusion-resistant automotive applications.

Abstract: A laminate comprises:a first layer of thickness between 75 .mu.m and 150 .mu.m of a polyester material not being absorbent of xerographic toner and having an image deposited on a first surface thereof by an electrostatic deposition process,a second layer of optically transparent or translucent plastics material,a first surface of the first layer being bonded to the second layer by a layer of optically transparent adhesive material, in a lamination process involving heat and pressure to ensure that the relief of the deposited image is apparent in the laminate through the second layer,the arrangement being such that the image on the first layer can be viewed through the second layer and the layer of optically transparent adhesive material.

Abstract: A weather barrier kit is provided comprising double-faced tape used to bond a film to a window frame and a folded and rolled sheet of film having a stiffening band and strip of adhesive across the top. The provision of a stiffening band with adhesive thereon across the top of the film allows one to apply the film squarely, without stretching and without the need of measuring beforehand.

Abstract: An oriented polyester film coated on at least one surface with a coating that improves its adhesion to gelatin is disclosed. The dry coating contains one or more sulfopolyesters; one or more tetrablock copolymer resins; and one or more non-volatile polyamines. Other ingredients, such as particulate materials and surfactants, may be present in the coating. The coating is preferably applied at the interdraw stage.

Abstract: A metal/synthetic resin laminate comprising a metal substrate layer, an epoxy resin-based adhesive layer (a "1st adhesive layer"), an adhesive layer (a "2nd adhesive layer") comprising an epoxidized styrenic thermoplastic elastomer D prepared through epoxidation of a double bond derived from a conjugated diene compound of a block copolymer C comprising a polymer block A composed mainly of a styrenic compound and a polymer block B composed mainly of a conjugated diene compound or a partial hydrogenation product thereof, and a synthetic resin layer; and a synthetic resin-clad metallic pipe wherein the above metal substrate layer is tubular.

Abstract: This invention covers a film base wherein polymers forming a polymeric film surface and selected from polyesters, polyolefins and polyamides are coated with an adhesion enhancing primer coating containing (a) a functionalized .alpha.-olefin containing copolymer; and (b) a crosslinking agent selected from the group consisting of amino formaldehyde resins, polyvalent metal salts, isocyanates, blocked isocyanates, epoxy resins and polyfunctional aziridines; and wherein the adhesion enhancing primer coating is applied to the polymeric film surface and reacted, at elevated temperatures with newly generated polymeric film surfaces formed during uniaxial or biaxial stretching and heat setting.

Abstract: A method is provided for preparing the surface of a cyanate ester resin composite for metal plating. More particularly, a layer consisting essentially of cyanate ester resin is applied to the surface of the composite. Thereafter, the surface of the resin layer is etched, preferably by treatment with an etching solution containing either a quaternary ammonium hydroxide or a primary amine. Upon completion of the etching process, the cyanate ester resin layer may be successfully plated with metal. The method of the invention operates to improve adhesion between the cyanate ester resin composite and a subsequently-plated metal by providing the composite with a homogenous distribution of mechanical anchoring sites for a subsequently-plated metal, such that uniformity of adhesion is achieved.

Abstract: The invention relates to a soundproofing window in which an intermediate film provides for damping of vibrations transmitted in particular by structure-borne conduction.

Abstract: A pressure-sensitive adhesive sheet 1A is for use by sticking onto a liquid crystal cell, and it has a construction wherein the pressure-sensitive adhesive layer 3 is joined to one side of the base material layer 2 which is constructed with a light-polarizing sheet and a release sheet 4 stuck onto the other side from the base material layer 2 of the pressure-sensitive adhesive layer 3. The pressure-sensitive adhesive layer 3 is constructed as a laminate with the layers 31 and 32. An acrylic-based pressure-sensitive adhesive, for example, can be used for the pressure-sensitive adhesives from which the layers 31 and 32 are constructed, but the shear elastic modulus or the relaxation elastic modulus of the layer 32 is set lower than that of the layer 31 as a result of a difference in the composition of the pressure-sensitive adhesive, the degree of crosslinking or the amount of plasticizer added in the layers 1 and 32.

Abstract: A composite sheathing material comprises a first layer of paperboard having a layer of a permeable resin on a surface thereof, a core layer of paperboard, a first adhesive layer positioned intermediate and adhered to the first layer of paperboard and the core layer of paperboard, said first adhesive layer comprising a controlled distribution of thicker and thinner adhesive portions, a second layer of paperboard having a second layer of a permeable resin on a surface thereof, and a second adhesive layer positioned intermediate and adhered to the second layer of paperboard and the core layer of paperboard, said second adhesive layer comprising a controlled distribution of thicker and thinner adhesive portions.

Abstract: The present invention provides unified multilayer films having at least one internal layer that includes a pressure sensitive adhesive material. Preferably, multilayer films of the present invention are no greater than about 250 micrometers (.mu.m) thick. In particularly preferred embodiments of the present invention, multilayer films include layers that include a pressure sensitive adhesive material alternating with layers that include a material that is not a pressure sensitive adhesive. In other preferred embodiments, multilayer films include alternating layers of different pressure sensitive adhesive materials.

Abstract: A flexible laminate for use in flexible circuitry including at least one layer of a flexible film substrate; at least one layer of a metal foil on top of the flexible film substrate; and an adhesive including a polyetherimide, and preferably a siloxane polyetherimide copolymer, present between said flexible film substrate and said metal foil; in which the adhesive bonds the metal foil to the flexible film substrate.