Abstract: The present invention is an improved electrically conductive filter media particularly suitable for use in applications where static electricity must be dissipated. The filter media of the present invention comprises a microporous filtration layer having electrically conductive particles embedded therein. When attached to support media, this structure provides exceptional filtration efficiency while assuring a consistent and evenly distributed electrical pathway to ground.

Abstract: A metallized film combination comprising an oriented polypropylene substrate layer, at least one surface of which having a coating of a vinyl alcohol homopolymer or copolymer hydrolyzed to at least 95% at a pH of greater than 5.0, said coating having a metal layer thereon. The high pH PVOH hydrolysis conditions provide a metallized product of high metal adhesion and good water and oxygen barrier properties.

Abstract: A packaging laminate for a liquid-tight, configurationally stable packaging container possessing good fat resistance properties.The packaging laminate (10) has a core layer (11) of paper or paperboard and outer liquid-tight films or coatings (12 and 13) of thermoplastic, preferably polyethylene.Between the core layer (11 ) and the one outer thermoplastic film (12), there is a layer (14) of greaseproof paper which is bonded to the core layer (11) via an interjacent layer (15) of binder or sealant plastic in order to impart fat resistance to the packaging laminate.Between the core layer (11) and the second outer thermoplastic film (13), there is an aluminium foil (16) which is bonded to the core layer (11) via an interjacent layer (17) of binder or sealant plastic, whereby the packaging laminate is given excellent oxygen gas barrier properties.

Abstract: A tape comprising a biaxially-oriented backing made from a polymeric film bearing on one major surface thereof a layer of pressure-sensitive adhesive and on the other major surface thereof a layer of low-adhesion backsize composition. The backing and the layer of pressure-sensitive adhesive intermix so as to form a commingled layer between them.

Abstract: A container to hold aromatic substances which can be sealed aroma-tight with a composite film consisting of several laminae. The composite film on the top of the container is made up of an aroma-tight outer film having at least two laminae and an aroma-permeable inner film which is detachably bonded to the outer film by means of a bonding agent. The outer film can be applied onto the inner film or membrane film, which consists of at least two permanently bonded laminae, whereby the lamina adhering to the container is made of polyethylene and the third or top lamina is made of a polymer materialwhich has a different density. The surface structure of the side of the membrane film facing away from the container is selected in such away that the entire membrane film stays on the container when the outer film (16) is pulled off.

Abstract: Disclosed is an adhesive sheet comprising a base sheet, an undercoat layer formed on the base sheet, a release agent layer formed on the undercoat layer, an adhesive layer formed on the release agent layer and a face stock disposed on the adhesive layer, wherein the undercoat layer comprises (a) a copolymer obtained by emulsion-copolymerizing at least one hydroxyl group-containing (meth)acrylic ester with at least one of other monomers copolymerizable therewith and (b) a pigment.

Abstract: An air bag is made by bonding a pair of sheets to each other by heat-sealing with a releasing layer corresponding to a pattern of a number of cellular air chambers sandwiched therebetween. A check valve for air infusion, which is used for filling air in the air bag, is mounted in one of the air chambers. When air is infused into a space between either of a pair of sheets and the releasing layer through an air infusion port of the check valve, the releasing layer and the corresponding sheet are peeled from each other by the air pressure. As a result, the air chambers are formed between the two layers.

Abstract: This invention relates to improved polymer-pressure sensitive adhesive combinations, particularly in the form of laminates, and methods of producing same. This invention improves the bond strength of the pressure sensitive adhesive to the polymer layer by priming the polymer surface with a curable urethane primer before applying the pressure sensitive adhesive to the polymer surface. If the polymer surface is not "active" to the curable urethane primer, the polymer surface is first activated with a silicon-containing treating agent. The laminates of this invention have superior bond strength, especially longterm bond strength. Of particular interest are the embodiments of this invention wherein the polymer is a silicone foam and the pressure sensitive adhesive is either acrylic or silicone adhesive.

Abstract: A printable, pressure-sensitive adhesive ("PSA") tape, particularly a self-wound tape, which comprises a polyester film substrate, a rubber base prime coat and an adhesive which can be fire-retardant. The PSA tape has high adhesive properties and a novel release mechanism which does not use any conventional release agents.

Abstract: A packaging material for photographic photosensitive materials consisting essentially of a cushioning sheet having a density of less than 0.5 g/cm.sup.3, a wear-resistant heat-resistant flexible sheet having a Young's modulus of not less than 50 kg/mm.sup.2 provided on one side of the cushioning sheet, and a wear-resistant flexible sheet having a Young's modulus of not less than 50 kg/mm.sup.2 provided on the other side of the cushioning sheet, the outer most layer provided on said the other side having heat sealability, and the packaging material having complete light-shielding ability as a whole, and a light-shielding bag for photographic photosensitive materials made by fusion to join the layers having heat sealability in the above packaging material.

Abstract: Treated cellulose-based substrate, e.g., paper, having improved release properties and methods of making such treated substrate are disclosed. The treated substrate is coated with a primer coating comprising a cationic polymer and with a release coating comprising a carboxy- or carboxylate-containing release polymer.

Abstract: The invention relates to an opaque, matte, multilayer polypropylene film having at least one matte surface which includes at least one base layer and at least one interlayer, and an outer layer applied to this interlayer. The base layer includes polypropylene and fillers. The interlayer includes a mixture or blend of two components I or II. Component I is a propylene homopolymer or a copolymer of .alpha.-olefins having 2 to 10 carbon atoms, or a terpolymer of .alpha.-olefins having 2 to 10 carbon atoms or a mixture or blend of said polymers. Component II is an HDPE or a blend of HDPE and a propylene homopolymer or a copolymer of .alpha.-olefins having 2 to 10 carbon atoms or a terpolymer having 2 to 10 carbon atoms. The outer layer essentially includes a propylene homopolymer or a copolymer of .alpha.-olefins having 2 to 10 carbon atoms or a terpolymer of .alpha.-olefins having 2 to 10 carbon atoms or a mixture or blend of said polymers.

Abstract: A metallized multilayer film made from a polymer substrate, preferably polypropylene, is modified by a maleic anhydride modified propylene polymer which can be located on a surface of the substrate or incorporated within the substrate has a skin layer of polyvinyl alcohol which is capable of being metallized.

Abstract: A polymeric film structure having improved oxygen and moisture barrier characteristics is disclosed. The structure includes a polymeric substrate adapted to receive an oxygen barrier on one side thereof and a moisture barrier on the other side of the oxygen barrier. The oxygen barrier includes polyvinyl alcohol cross-linked with aldehyde containing cross-linking agents in the presence of a catalytic amount of an inorganic acid, preferably sulfuric acid. The moisture barrier is a metallized polymeric composite, preferably metallized oriented polypropylene.

Abstract: A holographic article and method for forming permits the party producing the final document to print the holographic image directly on the final document thereby permitting such party to retain and maintain control of its own embossing shim on which the hologram has been formed and which is utilized for embossing the holographic image on the document. A film upon which a holographic image can be directly stamped upon the final document includes a layer of metal having a thickness in the range of 20 millimicrons to 100 millimicrons, a lacquer coating having a thickness in the range of 0.5 microns to 3 microns and a heat activatible adhesive. The metal layer lacquer coating and heat activatible adhesive are caused to be adhered to the substrate forming the final document during a stamping operation which releases said metal layer, lacquer coating and heat activatible adhesive from a plastic carrier film to which had initially been applied.

Abstract: This invention relates to a replaceable adhesive display comprising a paper, metallized paper, or foil substrate printed on one or both sides with the same or different images, and at least one side is provided with a transparent overlay. The exposed surface of the plastic film overlay is coated with a pressure-sensitive, replaceable adhesive, but in order to achieve proper bonding between the overlay and the adhesive, the overlay surface is treated to enhance the bond between the overlay and adhesive. Following the surface treatment, the overlay is coated with a pressure-sensitive, replaceable adhesive. When the display is removed or peeled from the mounting surface, there is a relatively clean separation at the interface between the adhesive and the surface of the adherend, and substantially no residue remains on the surface. The adhesive is reusable or resealable and permits remounting the display many times. Preferably, a quick-release member is provided over the coating to protect the coating.

Abstract: Pavement marking material comprising a top layer, an optional base sheet, and a layer of adhesive, wherein the adhesive comprises a rubber and a high loading of tackifier. Such adhesives have been found to exhibit exceptional impact shear resistance.

Abstract: A laminate comprising a substrate, a continuous layer of a release coating on one surface thereof, and a layer of a silicone pressure sensitive adhesive on the surface of said release coating, said release coating being a mixture of a resin having perfluoro side chains and a film forming resin which binds said resin having said perfluoro side chains to said substrate, wherein said film forming resin is selected from the group consisting of polyester, polyamides, functionalized polyolefins, and nitrile polymers and copolymers.

Abstract: The invention provides a transfer paper which comprises a releasable base and as disposed successively thereon at least one picture printing layer, a thermosetting adhesive layer and a release layer, and a transfer process employing the above transfer paper which comprises peeling off the releasable base from the paper, transferring the printing layer and thermosetting adhesive layer as a unit to a substrate and curing the adhesive layer at a temperature of 80.degree.-170.degree. C.

Abstract: A sandwich type composite adhesive construction in a simpler form, composed of a central release liner having a permanent adhesive layer on one side thereof and a pressure sensitive adhesive layer on the other side preferably separated therefrom by a release coat or member, and at least one release member on said adhesive layers but in a more complex form containing additional carrier layers or strengthening members including at least one or more support layers between two layers of permanent pressure sensitive adhesive. This adhesive construction provides a product, such as a pipe insulation that has unique properties and is cost effective.

Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 40 to 98 mol percent isophthalic acid; from about 0 to about 50 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.

Abstract: In laminates composed of a woven or knitted fabric and a film impermeable to water and permeable to water vapor, the woven or knitted fabric is made of unstretched or partially stretched fibers. The laminates are highly extensible and retain the shape obtained by stretching. They are particularly useful as starting materials for intermediate layers in shoes and gloves and confer advantages over and above known laminates in respect to the manufacture and properties of the finished articles.

Abstract: A structure which is useful for making containers for dentifrices, such as tubes, is comprised of a structure where the layer which contacts the dentifrice consists of a blend of polybutylene terephthalate and polyethylene. Other layers can consist of adhesives, paper, foils, other polymers and the like depending on the properties desired. A polybutylene terephthalate-polyethylene layer has been found to have a low degree of absorption of flavorant.

Abstract: The aged release stability of epoxy-functional UV-curable polysiloxane release coating compositions on various substrates is enhanced by treating the substrate with a weak acid, such as acetic acid.

Abstract: In a high temperature-resistant masking tape comprisinga) a paper substrate,b) an impregnant in said paper substrate,c) a release coat on one surface of said paper, andd) an adhesive on the other surface of said paper,the improvement wherein the adhesive comprises a cured mixture of natural rubber and at least one of a butyl and acrylic synthetic rubber, whereby the tape is capable of withstanding high temperatures.

Abstract: A polymeric film substrate having on at least one surface a prime coating of the type which causes destructive film blocking between contacting layers. This prime coating is top coated with pigmented or non-pigment polyester ink base so as to eliminate the blocking. This top coating is a excellent base for printing inks.

Abstract: A low oxygen transmissive film combination having a substrate with a surface having a surface free energy of at least about 35 dynes/cm, a primer coating on one or both sides and an oxygen transmissive inhibiting layer of a poly(vinyl alcohol) and a cross-linking agent with a proportion of catalytically active sulfuric acid.

Abstract: A printable film structure comprising a polymeric film substrate having on at least one surface thereof a prime coating of the type which causes destructive film blocking between contacting layers of such coated films, said prime coating having thereon a continuous copolyester coating consisting essentially of the polyester condensation product of the following monomers or their polyester forming equivalence:(a) about 60 to 75 mole % of terephthalic acid;(b) about 15 to 25 mole % of at least one aliphatic dicarboxylic acid of the formula HOOC(CH.sub.2).sub.n COOH, wherein n ranges from about 1 to 11;(c) greater than from about 6 up to about 15 mole % of at least one sulfomonomer containing an alkali metal sulfonate group attached to a dicarboxylic aromatic nucleus; and(d) stoichiometric quantities of about 100 mole % of at least one copolymerizable aliphatic or cycloalphatic alkylene glycol having from about 2 to 11 carbon atoms.

Abstract: A composite hose is disclosed which is constructed essentially with an inner tube and an outer cover, the inner tube being formed from a composition comprised of a specified polymer alloy of a selected class of polyamide resins and acrylic rubbers and the outer cover from a composition comprised of a specified thermoplastic elastomer of a selected class of polyolefin resins and ethylene-propylene-diene rubbers and butyl-based rubber. Impermeability is greatly improved with respect to refrigerant gases and fuel oils.

Abstract: A method for repairing and reinforcing pressure-supporting hollow bodies, in particular deteriorated underwater pipelines, using a tape formed from a plurality of layers.

Abstract: A multilayer film structure includes:(A) a core layer of high density polyethylene including either a minor proportion of a maleic anhydride modified high density polyethylene blended therein or having(B) a skin layer of maleic anhydride modified polyethylene on one side and(C) on the other side a heat sealable or printable skin layer;this structure having an unbalanced orientation such that the degree of transverse direction orientation produces a visible rippled and striated appearance, with the ripples and striations being parallel to the transverse direction of orientation. This structure can also have a layer of ethylene vinyl alcohol copolymer on the maleic anhydride modified polyethylene-containing layer. The maleic anhydride modified HDPE or the EVOH can be metallized and the final structure laminated to a separate film structure.

Abstract: A film combination includes (a) an oriented polymeric substrate which in its unmodified state is susceptible of transmitting oxygen and water vapor; (b) a primer coating on the substrate; (c) a layer of cross-linked polyvinyl alcohol on the primer layer; and (d) on the cross-linked layer a layer of a blend of (1) a polyvinyl alcohol homo or copolymer and (2) an ethylene-acrylic acid copolymer.

Abstract: A masking tape for use in masking a part in a high velocity oxy-fuel (HVOF) plasma spray process. The tape is formed from a fabric which is tightly woven from yarns of aramid fibers. A silicone rubber impregnates the inner fabric layer. First and second silicone rubber layers are coated onto opposite sides of the impregnated fabric. A pressure-sensitive adhesive is coated onto the second silicone rubber layer, which is preferably laminated with a release liner.

Abstract: A film providing electrostatic shielding comprises a first layer of a carrier material and a second layer of a thermoplastic, polymeric material, both layers being electrically insulative, flexible and transparent, and there further being a plurality of thin, conductive slivers suspended in the second layer. The slivers form an essentially two-dimensional, conductive network which is suspended in the second layer, and may be present in an amount as little as 2 g/m.sup.2. The slivers have a melting temperature greater than the melting temperature of the polymeric material, and the polymeric material has a melting temperature lower than that of the carrier material. The film passes at least 70% of visible light.

Abstract: A laminated film bag is made of laminated films each composed of an outermost layer formed of a polyester resin film, an innermost layer formed of a polyolefin resin film and an intermediate layer formed of an aluminum foil, the polyolefin resin film has formed thereon score lines having a depth of 1/20 to 2/3 of the thickness of the polyolefin resin film and an opening width of 0.5 to 7 mm, at intervals of 1 to 15 mm.

Abstract: A multiple layer wraparound sleeve having a heat shrinkable backing layer and at least one functional layer has the functional layer as a discrete sheet which is connected to one end of the backing layer, and is of at least sufficient length that, when the sleeve is wrapped around the pipe or other substrate at least twice, the functional layer sheet wraps around the substrate first with its ends overlapping and the backing layer wraps around the functional layer sheet with its ends overlapping. This allows wrappings of reduced thickness to be employed without problems of voids occurring between the functional layer and the substrate.

Abstract: A tape wrap system adapted for protecting metal tubular articles, particularly pipes, from corrosion comprising in order, a primer coating covering the surface of the article, an innerwrap over the primer coating and an outerwrap placed over the innerwrap, the innerwrap comprising a polyolefin layer carrying an adhesive layer on its inner surface and a layer comprising a heat fusible material on its outer surface, or a single layer comprising a blend of a polyolefin and a heat fusible moiety carrying an adhesive layer on its inner surface, the outerwrap comprising an impact-resistant polyolefin layer having a heat fusible layer on both surfaces or the inner surface thereof, or a single layer comprising a blend of an impact resistant polyolefin and a heat fusible material; the tape wrap system fusing the innerwrap and outerwrap together when heated and thereafter cooled to form a uniform, continuous and completely closed protective coating which fully protects the article against corrosion and other external d

Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 65 to 98 mol percent isophthalic acid; from about 0 to about 30 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.

Abstract: A multi-layer label for a dry-cell battery, having an outer layer comprised of non-shrinkable plastic material.

Abstract: This invention is directed to an article comprising a backing layer, at least one pressure sensitive adhesive layer, and an aqueous release coating layer, wherein the pressure sensitive adhesive layer is affixed to at least one side of the backing layer and the aqueous release coating layer comprises a polymer, preferably having acid functionality, and an aqueous solution or dispersion of an organic compound having at least one fatty acid ester and at least one quaternary amine.A method of using a mixture of a polymer, preferably having acid functionality, and an aqueous solution or dispersion of an organic compound having at least one fatty acid ester and at least one quaternary amine as a release coating is also disclosed.The aqueous release coating layer permits the pressure sensitive adhesive layer to be easily separated from the backing layer, even after storage for long durations and under extreme temperature and humidity conditions.

Abstract: The invention herein pertains to methods and materials for producing a nicotine maintenance pouch. Laminates comprising a nicotine barrier layer and a nicotine degradation agent barrier layer are disclosed. In a preferred embodiment, the nicotine barrier layer comprises a nitrile rubber modified acrylonitrilemethyl acrylate copolymer. An especially preferred nicotine barrier material comprises, by weight percent, 75% acrylonitrile, and 25% methyl acrylate with 10% butadiene (AN-MA/B). The nicotine degradation agent barrier layer is preferably aluminum foil. In an especially preferred embodiment, the laminate comprises a layer of AN-MA/B adhered to a layer of aluminum foil, which in turn is adhered to a layer of paper stock.Pouches comprising a self-sealed nicotine barrier layer and a nicotine degradation agent barrier layer are disclosed. These pouches are preferably formed from the laminates above.

Abstract: Novel finger-tearable industrial tapes comprising:(1) a lightweight nonwoven synthetic cloth;(2) a polymeric backing layer from about 3 to about 5 mils thick bonded to one surface of said cloth with additional amounts of said polymeric backing material at least partially filling the voids or interstices within said cloth, at least the free outer surface of said backing layer comprising a polyolefinic material; and (3) a layer of a pressure-sensitive adhesive material at least 1.0 mils thick bonded to the opposed surface of said cloth with a portion of the adhesive material on the inner surface of the adhesive layer laminated to the polymeric material of said backing layer within the interstices of said cloth, thereby forming a unitary laminar structure in which the nonwoven cloth is characterized as being sandwiched between the respective polymeric backing layer and adhesive layer materials.

Abstract: A laminated tube container has the body comprising a sheet material comprising a substrate, a silicon oxide deposited layer, a heat buffer layer and an extruded coating layer of a thermoadhesive resin which are successively formed in a laminate. The heat buffer layer prevents cracks from being produced in the silicon oxide deposited layer by the heat coming when the extruded coating layer of a thermoadhesive resin is laminated. The heat buffer layer is preferably formed by dry lamination or non-solvent lamination which requires no heating. An anchor coat layer may optionally be provided between the heat buffer layer and the extruded coating layer of a thermoadhesive resin so that the adhesion strength between these layers can be improved.

Abstract: A film composite has a thin flexible decorative backing bearing a layer of adhesive which affords good repositionability and yet can become permanently bonded to highly plasticized substrates such as vinyl films containing migratable monomeric plasticizers. Such substrates include wall coverings and vinyl coated fabrics. The adhesive is a blend of an acrylic latex adhesive and a heat-activatable urethane latex adhesive, which blend has been coated onto the backing from an aqueous emulsion. Useful backings include vinyl, polyurethane, and polyolefin films.

Abstract: Flexible sheet materials and envelopes are described which are useful for packaging electronic components. The sheet material includes an electrically insulating film with a conductive layer on the upper surface and an antistatic layer carried by the lower surface The antistatic layer includes a fluoroaliphaticsulfonamide polyether compound. Optionally a tie layer may be included between the film and the antistatic layer.

Abstract: The present invention describes a polymeric support film coated with a primer coating composition and overcoated with a silicone release coating, thereby forming a silicone release film. Silicone release films are well known and serve as temporary supports for an adhesive or tacky surface such as for labels, pressure sensitive tape, etc. The primer coating composition, before dilution with water, comprises from about 25 to 75% by weight of a glycidoxy silane and from about 75 to 25% by weight of a copolyester. The copolyester comprises from about 65 to 98 mol percent isophthalic acid; from about 0 to about 30 mol percent of at least one aliphatic dicarboxylic acid; from about 2 to about 20 mol percent of at least one sulfonate group attached to a dicarboxylic nucleus; and about 100 mol percent of glycol having from about 2 to 11 carbon atoms. Typical glycidoxy silanes that can be employed in the primer coating composition include glycidoxypropyltrimethoxysilane.

Abstract: Adhesive paper tape, obtainable by impregnating and coating a paper which, immediately after the production process and still in the moist state, has been compressed between a rotating roller and a rotating web, and dried and which hasa mean weight of 45-80 g/m.sup.2a mean extensibility of 8-20%a means tensile strength of at least 35N/15 mm anda mean thickness of at most 0.13 mm.

Abstract: A conductive sheet for shielding electromagnetic waves of this invention has high flexibility in the same direction as a wire. The conductive sheet 10, therefore, is easy to bend along the shape of the wire. Additionally, since conductive sheet 10 preferably maintains its shape in a direction perpendicular to the wire, it is possible to make a conductive link, that is, to make an electrical contact easily, only by applying slight pressure to conductive sheet 10 to change its shape. Moreover, since the metals composing the warp and the weft of the conductive sheet keep the potential difference of the metals below a predetermined voltage at the contact point of both metals, contact corrosion as a practical problem at the predetermined point is eliminated.

Abstract: The present invention provides a strong heat seal to a thermoplastic polyester container which can withstand hot water treatment such as retorting, and to a heat sealed container. A heat-sealable closure is also provided. It is composed of a laminate consisting of a heat-seal layer comprising as a main component a copolymerized polyester resin having a softening temperature of 120.degree. C. and a glass-transition temperature of 30.degree. to 85.degree. C., a metal substrate, and an epoxy-phenol resin primer layer interposed between them.Preferably, the container has a heat seal portion composed of a thermoplastic polyester having a fusion temperature in the crystalline state of at least 200.degree. C. This polyester portion is oriented and crystallized or heat-crystallized.

Abstract: Disclosed is a patterned film forming laminated sheet comprising a multi-layer construction prepared by successively laminating a release sheet layer (1), a pressure-sensitive adhesive layer (2), a base sheet layer (3), and a patterned film layer (4) or further laminating a pigmented print layer (5), said patterned film layer (4) being prepared by a process which comprises coating a fluid coating composition containing a powdery magnetic material on one side of the base sheet layer (3) to form a fluid film, and acting a magnetic force on the powdery magnetic material contained in the fluid film in a fluid state to form a pattern.