Abstract: This invention is a multiple layer packaging film in which the outer polymeric layers cooperate to achieve, between themselves, a relatively constant coefficient of friction differential, a fin seal capability, and a lap seal capability; even after the film is stored in wound-up roll form.

Abstract: A composite film structure composed of a layer (A) of high density polyethylene having an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 1.3-2.9 dl/g, a melt index (MI.sub.A) of 0.3-7.0 g/10 min. and a density of 0.950-0.970 g/cm.sup.3, in which up to 2 mole % of an alpha-olefin may be contained; and layers (B) of an ethylene/C.sub.5 -C.sub.10 alpha-olefin random copolymer having an intrinsic viscosity [.eta.] as measured in decalin at 135.degree. C. of 1.0-2.4 dl/g, a melt index (MI.sub.B) of 0.5-20 g/10 min., a density of 0.910-0.940 g/cm.sup.3, and a melting point of 115.degree.-130.degree. C., with the proviso that the MI.sub.A /MI.sub.B ratio is 0.15-4.0, said layers (B) being in direct contact with the two sides of said layer (A) and laminated thereto.

Abstract: A coating composition for polyolefinic products, particularly films, which consists essentially of a solution of a three-component polymeric system comprising:(a) a vinyl or vinylidene copolymer;(b) a polymer or copolymer of acrylic esters; and(c) a polyester resin obtained by condensation.The coated products and the coating process are also described.

Abstract: The invention relates to a laminated material, the main layer of which consists of a molecular-oriented polyester material which has very good tensile strength characteristics and a sealing layer joined to the main layer of a modified polyester material of the type which is marketed under the trade name PETG and which retains its sealing characteristics in spite of the laminated material being subjected to a joint molecular-oriented stretching.

Abstract: A recoverable seal for sealing a container, especially an artillery ordinance cannister, comprising a heat-shrinkable continuous annular band having a uniform coat of heat-activatable adhesive on the inwardly-facing surface thereof which has a mean thickness of 0.01 to 1.0 mm and differs from the mean thickness over the surface by at most 25% of the mean thickness. The band may be provided with a tearable region such as a score line to enable it easily to be peeled off the container. After the band has been recovered on the container, the band can be peeled away and a layer of adhesive will remain aiding the ability of the seal to withstand pressurization and depressurization.

Abstract: Preformed abrasion resistant coating layers derived from epoxy-silanes or acryloxy-silanes are applied to surfaces by means of a composite comprising a release liner, the abrasion resistant layer, and a thermosoftenable adhesive layer.

Abstract: A transparent, heat-sealable, laminated film is provided that comprises a first layer of a difficultly heat-sealable polymer chemically interfacially bonded to a second layer of a readily heat-sealable polymer. The second layer contains from about 0.3% to 0.7% by weight of an anti-fogging agent. The film resists the formation of fog when utilized to package refrigerated foods.

Abstract: Multiple-layer, heat-sealable films are described comprising a substrate layer of polypropylene homopolymer or copolymer, or blends thereof with compatible polyolefins; and at least one heat-sealable surface layer of an interpolymer of propylene and two different higher alpha-olefins; a copolymer of butene-1 and a higher alpha-olefin or an interpolymer of ethylene, propylene and a higher olefin. The films are prepared by extrusion coating or coextrusion and can be oriented.

Abstract: Multiple-layer, heat-sealable films are described comprising a substrate layer of polypropylene homopolymer or copolymer, or blends thereof with compatible polyolefins; and at least one heat-sealable surface layer of a blend poly(1-butene), and a copolymer of ethylene or propylene and a higher olefin. The films are prepared by extrusion coating or coextrusion and can be oriented.

Abstract: Flexible packaging material suitable for making peelable form-fill-seal packages of the "pillow" type comprises a paper web which is coated with a normally non-tacky pressure- or heat-activatable adhesive and which is treated with a composition having release properties with respect to the adhesive, e.g. by means of a size press. The release composition is preferably a polysiloxane, an organo-chromium stearate complex, a ketene dimer or a paper fluoridizing agent.

Abstract: Improved shielding members and electric cable constructions which utilize these shielding members are described. Various configurations of the shielding members can be used to enclose a single cable circuit consisting of one or more conductors in two concentric metallic shielding layers fabricated from a single shielding member which provides excellent electrical isolation for the cable circuit. Generally, the shielding members comprise an elongated ribbon of insulating material and a pair of elongated foil strips arranged in parallel relationship with the ribbon. The foil strips are bonded to opposite sides of the ribbon and each has an elongated edge generally in alignment with opposite elongated edges of the ribbon. The selective use of layers of heat sensitive sealing material for sealing the shielding layers protects the cable circuits from moisture.

Abstract: An improved flexible package for use in packaging acids, oxidants and the like is constructed with a laminate comprising, at least, an amorphous polyester ply and a metal foil ply. The package is characterized by a superior combination of excellent stability in heatsealing operations over a wide range of conditions and extraordinary chemical resistance to oxidants and acids.

Abstract: Product and process for heat transfer labeling employing a contoured thermoplastic and resinous release layer which is desirably imprinted on a carrier and superimposed with a transfer layer containing a design print.

Abstract: A multilayer sheeting for attachment to sheet metal to stiffen the sheet metal and diminish noise. An anti-drumming sheeting consisting of a filler embedded in a mass such as a bituminous material may be bonded to sheet metal, such as the sheet metal employed in manufacture of an automobile door, and a stiffening sheeting which may consist of a matrix such as a fiberglass mat drenched in a thermosetting resin is bonded to the anti-drumming sheeting. Such a multilayer anti-drumming and stiffening sheeting is flexible enough during application to conform to the configuration of the sheet metal, but hardens into a rigid lining component when the sheet metal is heat treated during the normal course of fabrication.

Abstract: A novel heat release layer for use in connection with decalcomania paper and in decalcomanias which include a vitreous design layer surrounded by a heat release layer and a heat activatable adhesive layer is disclosed. In particular, the novel heat release layer disclosed comprises a combination of a normally solid straight chain, primary aliphatic oxyalkylated alcohol with either/or (1) a normally solid polyethylene glycol having an average molecular weight of greater than about 1,000, and (2) an amide of a fatty acid. Preferably, the oxyalkylated alcohol has a molecular weight above about 1350, the polyethylene glycol is present in the heat release layer in an amount of from about 1 to 50 weight percent thereof, and/or the amide of a fatty acid is present in the heat realease layer in an amount of from about 1 to 25 weight percent thereof.

Abstract: Disclosed is an opaque film of thermoplastic organic material which has been oriented by biaxial stretching, comprising a base layer of a polymer or copolymer of an .alpha.-olefin having 2 to 6 carbon atoms containing between about 1 and 25 percent by weight, calculated on the weight of the polymer, of finely distributed solid particles ranging in size from about 0.2 to 20 .mu.m, and carried on at least one surface of the base layer, a heat-sealable layer comprising a copolymer of propylene with ethylene, a copolymer of propylene with butene, or a terpolymer of propylene with ethylene and a further .alpha.-olefin having from 4 to 10 carbon atoms. Also disclosed are a method of making this film and a package made therefrom.

Abstract: Multiple-layer, heat-sealable films comprising a substrate layer of polypropylene homopolymer or polypropylene copolymer, or blends thereof with compatible polyolefins; and at least one heat-sealable surface layer of a blend comprising a copolymer of ethylene and a higher olefin, and a different copolymer of higher olefins. The films are prepared by extrusion coating or coextrusion and can be oriented.

Abstract: A frangible bonding system utilizes blush lacquer as the frangible link in a system for bonding a substrate to a surface, such as the surface of a cover layer. The system is particularly adapted for packaging sterilized products. A substrate, such as paper, is coated with a layer of blush lacquer and dried. An adhesive, such as heat seal material, is superposed. A cover layer is overlaid, with a product between the layers. The package is then sealed and sterilized. Opening of the package is by peeling the cover layer and substrate from one another, breaking the cohesive internal bonds of the blush lacquer.

Abstract: A stiff antistatic film comprising a polyolefin substrate including a modulus improver, such as a polyterpene resin, a polymeric heat-sealable surface layer and an antistatic coating layer comprising a quaternary ammonium salt, such as choline chloride.

Abstract: The invention concerns metallized hot stamping foils for decorating three-dimensional objects. In order to achieve a decoration of the object with the hot stamping foil which is free from cracks in the applied stamping film there is proposed a foil comprising a thermoadhesive layer, a first lacquer layer, a metal layer, a second lacquer layer, a release layer and a carrier layer laminated in this order, wherein a laminate of the first lacquer layer, metal layer and second lacquer layer has a ductility represented by an elongation rate ranging from 1.5 to 4.0, the elongation rate being the ratio of length after elongation to length before elongation. The first lacquer layer may have thermoadhesive properties which allows dispensing a separate thermoadhesive layer.

Abstract: A laminated material is formed of a layer of polyurethane or polyether and a layer of extruded polyester. The polyester adhesive layer, which may contain five to fifteen percent by weight of polyurethane homogeneously mixed therein, is bonded to the layer of polyurethane or polyether under pressure at a sufficiently high temperature to permit an even viscous molecular flow between adjacent surfaces of the layers. When the layer is polyurethane, the temperature is above the softening point of polyurethane so that it is high enough to remove at least enough of the toluene solvent from the layer of polyurethane so that curling is prevented. When the laminated material is applied to a material with sufficient pressure and heated sufficiently that the layer of polyester becomes adhesive, the laminated material adheres to the material against which the layer of polyester is pressed.

Abstract: A multiple-layer film having a substrate layer of high density polyethylene or a propylene homo- or co-polymer, and, on at least one surface of the substrate, a heat-sealable layer of a propylene co-polymer containing from 80 to 95% of propylene, the balance being a C.sub.4 to C.sub.10 olefin. The substrate and surface layers exhibit a monoclinic crystalline structure.

Abstract: A method of fixing trim on an object to be bake-painted and a device for carrying out said method are disclosed. The device for fixing trim on the object to be bake-painted has a depression from therein and the depression is filled with a thermosetting synthetic adhesive. A strong bond between said trim-fixing device and an object is obtained by temporarily attaching the device with a suitable means to the object at a prescribed position and heat-treating the painted object with the device temporarily attached and thereby, curing the paint and the adhesive and at the same time, bonding the trim-fixing device fast to the object by the adhesive.

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 unitary packaging laminate comprising a foil substrate, a polypropylene outer layer, an intermediate layer of polyethylene or ethylene-acrylic acid copolymer located between and adhered to said substrate and said outer layer, a printed adhesive pattern of low temperature heat sealable material on the exterior surface of said outer layer, and a coating of low temperature heat sealable material on the inner surface of said substrate.

Abstract: A self-adhering stencil in which a heat sensitive bonding resin is disposed as a coating on the uncoated tissue or incorporated in the stencil layer or disposed as a coating on either or both sides of the stencil layer.

Abstract: A coupling element comprising elongate thermo-plastic strip material structured to provide that, on application thereto of heat in the range from about 300.degree. to about 500.degree. F. the outer portion thereof becomes fluidly adhesive, and is particularly adapted thereby to quickly form a ready bond and a clean seal between different materials, especially between glass and metal parts. While under the application of heat in the range specified, the outer portion of the element becomes fluidly adhesive, the inner or core portion of the element retains, as originally provided, an essentially stable form which accommodates and conforms to the contour of an applied load.On self cooling in place the strip coupling device provides a uniquely complete and extremely strong bond and seal between parts of unlike materials. In preferred embodiments and applications the invention provides for an improved installation of a window, windshield or like unit.

Abstract: A breathable lining and shaping material especially suited for garments, comprising a nonwoven layer of randomly arranged fibers superposed on a nonwoven layer of oriented fibers, means holding together the fibers of each layer and holding the layers together, and an outer binder imprinted on the outer face of the oriented fiber layer, the weight of the outer binder being at most 50% of the material weight, the length to width strength ratio of the randomly arranged fiber layer ranging from about 4:1 to 1:4. Advantageously a heat activatable adhesive is provided at spaced locations on the outer face of the randomly arranged layer, whereby the material can be joined to the underside of a garment by hot pressing. The outer binder on the outside of the oriented fiber layer preferably is printed in a regular pattern to ensure that all fibers are tied down by bonds at multiple points.

Abstract: A process for manufacturing transfer sheets is disclosed in which short fibers are temporarily stuck to a base sheet to form a short fiber layer to which two kinds of adhesives are applied to a desired design or letter to be transferred. When the transfer sheet thus made is put on a clothes or the like and heat and pressure are applied, the short fibers are transferred to the clothes only where coated with the adhesive.

Abstract: A self-adhering stencil in which a heat sensitive bonding resin is disposed as a coating on the uncoated tissue or incorporated in the stencil layer or disposed as a coating on either or both sides of the stencil layer.

Abstract: An article comprising a polymeric material and coated with a thermochromic paint. The improvement comprises the addition to the thermochromic paint of a non-thermochromic compound selected from the group consisting of the sulfates, hydrated sulfates and nitrides of boron, aluminum, tin, lead, arsenic, antimony, bismuth, zinc and phosphorus; the sulfides and hydrated sulfides of boron, aluminum, bismuth and phoshorus; the oxides and the hydrated oxides of boron, arsenic, antimony and phosphorus and the salts, organic compounds and free acids of the oxyanions of boron, arsenic, antimony and phosphorus.

Abstract: A fastening device having a sheet of eddy current conducting material sandwiched between two sheets of heat-activatable plastic material, the sheet of eddy current conducting material having a matrix of apertures, the sheets of heat-activatable plastic material covering the matrix area, and the device including means on an outer surface for releasably holding the device against a non-metallic surface prior to heat activation of the sheets of plastic material by an induction heater apparatus and system.

Abstract: A thermochromic paint, which changes color when heated to a certain temperature, and which is particularly suited for use on plastic substrates which are subject to oxidative degradation is disclosed. The improvement comprises the addition to the thermochromic paint of a non-thermochromic compound selected from the group consisting of the sulfates, hydrated sulfates and nitrides of boron, aluminum, tin, lead, arsenic, antimony, bismuth, zinc and phosphorus; the sulfides and hydrated sulfides of boron, aluminum, bismuth and phosphorus; the oxides and hydrated oxides of boron, arsenic, antimony and phosphorus and the salts, organic compounds and free acids of the oxyanions of boron, arsenic, antimony and phosphorus.

Abstract: The invention relates to decorations for application to sheet materials and comprises a decorative article, a layer of heat activated adhesive applied to a first surface of the article and a carrier sheet adhering to a second surface of the article which carrier sheet is heat stable at the temperature of activation of said adhesive whereby on positioning of the article with its adhesive surface juxtaposed the sheet material the application of heat and pressure activates the adhesive to produce bonding of the article to the sheet material per se.

Abstract: An easy and quick method of placing a stiffening heading to draperies without the use of a sewing machine and the help of pins or staples. The invention discloses the use of any drapery stiffening or heading with at least one and preferably two fine lines of adhesive or glue having a low melting point positioned on the heading parallel to the longitudinal side edge thereof. The drapery fabric or crinoline is joined to one line by heat sealing and then the stiffening is turned inside of the upper end of the fabric and the second line is heat sealed whereby the drapery stiffening is secured in a straight and accurate manner to the top of the fabric whereby the pleats can subsequently be sewn therein.

Abstract: The invention disclosed is directed to a gel composition, including (a) an aliphatic saturated monocarboxylic acid having from about 10 to about 24 carbon atoms; (b) an interpolymer of ethylene and a vinyl ester of a monocarboxylic acid having from 1 to about 4 carbon atoms; (c) a tackifying resin; and (d) an organic solvent. Substrate surfaces to which the gel composition is applied typically exhibit good resistance to blocking and may be effectively heat sealed to other surfaces at relatively low temperatures in minimum time. In aspects of the invention the coated substrates may be polyolefinic or cellulosic sheet materials, including laminates thereof with vinylidene chloride interpolymer layers. Improved heat sealable substrates and processes for heat sealing are also described.

Abstract: A temporary interlining composing a fabric base material and a continuous layer of a foamed adhesive provided on at least one of the surfaces thereof, which is prepared by coating said fabric base material uniformly and continuously with a foamed creamy aqueous solution of an adhesive and drying said solution, said foamed creamy aqueous solution having a viscosity of about 10,000 to about 200,000 c.p.s. at 50.degree. C. and the adhesive being soluble in water and becoming sticky on moistening. Said interlining, when heat and pressure are applied while and after being moistened, adheres to a dress material on the surface of said interlining; however, the adhesive can be washed off in a single washing operation.

Abstract: A new and improved resin composition having both thermoplastic and thermosetting properties and suitable for use for coating fabrics to produce fusible interlinings. The resin composition consists of a terpolymer having the following formula: ##EQU1## where R is selected from the group consisting of ethylene, propylene and butylene, a and b are substantially equal, a plus b equals 20c, X is a radical selected from the group consisting of CONH.sub.2 and COOH and n is an integer from 100 to 300. The composition also contains an aminoplast.