Abstract: An object of the present invention is to: eliminate the need to provide a tool such as a pair of scissors for partly opening a packaging bag; and allow the packaging bag to be partly opened easily when it is heated in a microwave oven, based on an increase in internal pressure caused by vapors associated with heating. To attain this object, the present invention provides a packaging bag made using as a material a synthetic resin film adapted for a microwave oven, wherein a layer constituting an inner surface is formed of a blend of a straight chain low-density polyethylene resin and a polybutene-1 resin, and one of opposite heat sealed portions perpendicular to a film flowing direction has a portion with a smaller heat seal width at an appropriate position.

Abstract: A multilayer polyolefin film of the type suitable for packaging application in which heat seals are formed, and in its preparation the multilayer film comprises a flexible substrate layer formed of a crystalline thermoplastic polymer having an interface surface. A heat-sealable surface layer is bonded to the interface surface of the substrate layer and is formed of a syndiotactic propylene polymer effective to produce a heat seal with itself at a sealing temperature of less than 110° C. The surface layer has a thickness which is less than the thickness of the substrate layer. The heat-seal layer can be formed of syndiotactic polypropylene polymerized in the presence of a syndiospecific metallocene catalyst and having a melt flow index of less than 2 grams/10 minutes. The multilayer film can take the form of a a biaxially-oriented film.

Abstract: A self-adhering modified bituminous roof covering composite that comprises an APP modified bitumen compound on the front side, and a factory-applied self-adhesive compound on the back side of a reinforcement carrier sheet. A method of manufacturing such composite comprising coating an APP compound on the top surface and affixing a self-adhesive compound to the bottom surface of a reinforcement carrier support sheet, and applying a release liner to the tacky self-adhesive layer during manufacture, stripping the release liner, selvage release film and end lap film from the membrane immediately prior to use, subsequently placing the exposed surface of the membrane directly on to the upper surface of the roof deck, base sheet or underlayment, and applying force directly to the sheet to enhance the bond between the composite and the underlying surface that is created by the tacky self-adhesive compound. The present invention relates generally to residential and commercial roofing membranes and shingles.

Abstract: The present invention has a main object to provide a transparent conductive heat sealing material of which antistatic property does not deteriorates even at a low humidity, and has a transparency to an extent of permitting visual recognition of the contents and a carrier tape lid using the same. To achieve this object, the transparent conductive heat sealing material of the invention is characterized by a heat-sealable synthetic resin, and conductive fine particle having a 50% particle size of up to 1.0 &mgr;m.

Abstract: Heat-activatable single-sided self-adhesive tape, characterized by a) a heat-activatable double-sided adhesive film strip based on thermoplastic rubber, tackifier resin and reactive resin, b) a double-sided self-adhesive tape laminated onto one side of the said strip, and c) if desired, release paper or a release film on one side of the adhesive tape.

Abstract: In a reinforcing tape for a slide fastener, which comprises a transparent elastomer film and an adhesive layer superposed on the reverse side thereof, an intermediate layer (an anchor coat layer) having a thickness thinner than the thickness of the elastomer film and that of the adhesive layer is interposed between the elastomer film and the adhesive layer. In a preferred embodiment, a polyamide elastomer film or polyester elastomer film is the elastomer film, a polyester anchor coat agent is the intermediate layer, and a polyester hot-melt adhesive is the adhesive layer. The thickness of the intermediate layer is 0.5 to 10 &mgr;m, preferably 2 to 3 &mgr;m.

Abstract: A packaging laminate useful as a lidstock comprises first and second films, and an image between the first and second films. The first film comprises a sealant layer forming the inside surface of the first film. The first film has a free shrink at 220° F. in at least one direction of at least about 7%. The second film comprises an outside layer forming the outside surface of the second film. The outside layer comprises at least about 40% by weight of the outside layer of one or more relatively high-melt polymers each having a melting point at least about 25° F. higher than the lowest melting point polymer of the sealant layer. The second film has a free shrink at 185° F. of no more than about 10% in each of the machine and transverse directions. The outside surface of the first film is directly laminated to the inside surface of the second film. The first film has an oxygen transmission rate greater than the oxygen transmission rate of the second film.

Abstract: A reflector is disclosed which enables bright image display with a wide angle of view and can be efficiently fabricated by a a simplified process. The reflector includes a resin layer having at its surface microscopic projections and depressions and formed by application of a coating composition containing a binder resin and crosslinked resin particles.

Abstract: A reflection-reducing film formed by being applied onto the surface of a substrate having light transmitting property, and including a base layer formed on the surface of said substrate and a surface layer formed on the upper side of said base layer, wherein: said base layer has a thickness of from 50 to 200 nm; and said surface layer is formed of a hydrolyzed product of a silane compound represented by the following formula (I), Rn—Si(X)4-n  (I)  wherein R is a substituted or unsubstituted alkyl group or an alkenyl group, X is a hydrolyzable group, and n is a number of 1 or 2, a metal chelate compound and a silica sol, and has a thickness of from 50 to 200 nm. The reflection-reducing film is easily formed on a light-transmitting substrate by applying a multi-layer coating thereon, and exhibits an excellent liquid resistance.

Abstract: An in-mold decorating label, which comprises a thermoplastic resin film substrate layer (I) having provided on its backside a heat-sealable resin layer (II), the heat-sealable resin layer (II) containing a polyethylenic resin and at least one of (i) a fatty acid amide having a molecular weight of 300 or more and (ii) an organic or inorganic fine powder having an average particle size larger than thickness of the heat-sealable resin layer (II). This label for use in in-mold decorating has excellent feeding and discharging properties upon printing and workability during sheeting, which facilitates insertion of the label into a metal mold during in-mold decorating, and provides a label-laminated container which does not suffer from blister generation and has a large welding force between the container and the label.

Abstract: The present invention provides a stable material having enhanced extensibility and a method for making the same. A tensioning force is applied to a neckable material to neck the material. The necked material is then subjected to mechanical stabilization to provide a stabilized extensible necked material. The stabilized extensible necked material is easily extended in a direction parallel to the direction necking.

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: The present invention provides a coated polymer film having release properties. The film includes a self-supporting polymer film layer, and a release coating on the film layer. The release coating, which can also be applied to alternate substrates, includes a cross-linkable acrylic and a polyolefin wax. The coating can optionally include a polysiloxane in combination with one or both of the acrylic and polyolefin wax.

Abstract: Acrylate hot melt-based self-adhesive composition, characterized by K value of at least 60, in particular 65-80, and obtainable by concentrating or devolatilizing a solution of such a composition in a devolatilizing extruder to give a system which can be processed as a hot melt.

Abstract: The invention relates to a hot peel carrier for decorative graphics and lettering applied to a substrate wherein the carrier has a film having opposite surfaces and an adhesive having a peel strength which decreases with increasing temperature, the adhesive being on a surface of the plastic film. The invention also provides a laminate for use in applying graphics to a substrate which incorporates the carrier, methods of using and methods of using the carrier and laminate disclosed herein. The various embodiments disclosed herein incorporating the aforementioned hot peel carrier have significant advantages stemming from the fact that immediate after a graphic is heat applied to a substrate, the adhesive of the carrier has substantially no adhesion to either the substrate or to the heated adhered graphic.

Abstract: A method for making sheets and/or plates that are thermoformable as of a temperature of 80-90° C. and heat-tackifiable as of 80-90° C., and suitable for use as a heat-tackifiable reinforcing material. According to the method, 30-70 wt % of granules of one or more polymers that have a low melting point (50-90° C.) and are thermoformable as of 80-90° C. are mixed with 70-30 wt % of one or more polymers with a higher melting or softening point, in the form of granules or a powder having a particle size greater than around 500 &mgr;m, and preferably of 500-1000 &mgr;m, both kinds of polymers being thermoplastic and at least partially compatible, and optionally with the usual additives; the mixture is extruded under low-shear conditions at low temperatures of 100-140° C.

Abstract: A double-sided heat-sensitive adhesive sheet comprises a support provided with a release layer on one side thereof and heat-sensitive adhesive layers which are formed on both sides of the support and have sufficient adhesion to the support but can be easily peeled apart from the release layer, wherein the release layer and the heat-sensitive adhesive layer has at their interface a 180° peeling resistance of 10-30 g/50 mm in a peel test performed at a peeling speed of 500 mm/min. in an atmosphere of 20° C. and 65% RH. The adhesive sheet is interposed between each opposed pair of information-recorded faces of recording material having on one side at least two spaces for information-recording, and heat is applied to the resultant assembly to make a laminate. The laminate can have a size and weight suitable for mailing as a postcard, and can bear confidential information on the inside and be peeled apart when desired.

Abstract: The invention describes a biaxially oriented polyester film with at least one base layer B, with at least one metal-adherent outer layer A, and preferably with another outer layer C, the metal-adherent outer layer A having a metal adhesion of at least 4 N/25 mm wherein the metal adherent layer consists essentially of an amorphous copolyester comprising ethylene terephthalate and ethylene isophthalate units.

Abstract: The present invention provides a coated polymer film having heat seal properties. The heat seal coating includes a propylene diol copolyester. Preferably, the copolyester is formed from 1,3-propane diol, isophthalic acid and a sulfomonomer. A method of heat sealing using this coated film is also disclosed.

Abstract: There is provided a cap liner including a fluid impermeable layer for venting gas to and from the container and an adhering device for adhering the impermeable layer to a rim of a container and a channel extending therethrough for venting gas therethrough. Also provided by the present invention is a method of sealing an opening of a container by affixing a meltable layer of a sealing member to a container rim and venting the container through a vent patch, meltable layer, a foil layer, and a fluid impermeable layer having pathways thereon.

Abstract: The invention relates to a process for applying coating films to three-dimensionally curved substrates, and to a process for producing coating films. In order to apply the coating film, which has at least a coating layer and an adhesive layer, the radiation-curable coating layer of the coating film is partially cured so as to be free from tack before being applied to the substrate. Following application, the coating film is subjected to electromagnetic radiation at below the wavelength of the visible spectrum and is fully cured. To produce a coating film, the coating layer is partially cured so as to be free from tack and in this state is stored until it is applied to a substrate. The coating layer can be attached at least indirectly to a smooth support base in-conjunction with an adhesive layer. The coating layer and/or the coating film can be detached from a roller in applying the coating film to a substrate.

Abstract: A transfer capable of applying one- or multi-coloured patterns to textiles under heat and pressure comprises a carrier sheet (1) having a non-binding surface which carries

Abstract: A multilayer sealant film for use in the medical field at least comprises as its innermost layer a first layer comprising at least one resin selected from the group consisting of linear low-density polyethylene, low-density polyethylene, polypropylene and polybutene-1, and a third layer comprising an ethylene-vinyl alcohol copolymer and laminated to the outer side of the first layer with a second layer serving as an adhesive layer and comprising a resin containing, as a main component, at least one of an amorphous polyolefin, adherent polyolefin and ethylene-vinyl acetate copolymer. The ethylene-vinyl alcohol copolymer forming the third layer functions as a barrier for preventing contaminants from migrating from outside of the third layer toward the first layer (innermost layer). Further, it is possible to improve the formability of the multilayer film since the difference in density between the resin for forming the first layer and the resin for forming the second layer is set to be 0.02 g/cm3 or less.

Abstract: An article includes a first member shaped and dimensioned for application to a rigid substrate. The first member is a decorative sheet which is adhesively bound to the substrate. The article further includes a polymeric adhesive tape securing the first member to the substrate, wherein the polymeric adhesive tape includes a heat activated, first polymeric adhesive layer which is activated at a first temperature and a heat activated, second polymeric adhesive layer which is opposite the first polymeric adhesive layer and is activated at a second temperature different from the first temperature.

Abstract: A multiple layer film useful in moisture barrier packaging applications has at least one layer comprising a blend of propylene polymer or copolymer, and a hydrocarbon resin; and two additional layers comprising a propylene polymer or copolymer, ethylene alpha olefin copolymer, ionomer, polybutene, or blends thereof. A core layer of ethylene vinyl alcohol copolymer or other oxygen barrier material, or high density polyethylene, can be included in some embodiments. A preferred embodiment of the multi-layer film exhibits excellent moisture barrier and optical properties, and shrink properties as well if the film has been oriented. High oxygen barrier is also a feature in embodiments including EVOH or other oxygen barrier materials.

Abstract: A thermoplastic multi-layer film with an even number of layers containing first and second outermost layers each containing ethylene-vinyl acetate copolymer having between 14 and 22 wt. % vinyl acetate, first and second inner layers each containing vinylidene chloride copolymer, and first and second contiguous layers separating first and second inner layers from each other, each layer containing ethylene-vinyl acetate copolymer.

Abstract: The present invention relates to an adhesive article comprising a bondable layer having on at least one major surface a layer of pressure sensitive adhesive, wherein the bondable layer comprises a thermosetting material, a thermoplastic material, or a hybrid material, wherein the pressure sensitive adhesive layer substantially retains pressure sensitive adhesive characteristics after storage at room temperature for at least about three months prior to bonding the adhesive article, and the adhesive article has a overlap shear measured at room temperature according to ASTM D-1002-94 of at least about 6.9 MPa after bonding as well as a method for making an adhesive article.

Abstract: A polyamide resin-based heat-shrinkable multilayer film is caused to satisfy various properties required of a packaging material, especially a food packaging material, at high levels, and particularly exhibit a highest level of heat-shrinkability. The multilayer film comprises at least three layers including an outer surface layer (a) which comprises a polyester resin or a polyolefin resin; an intermediate layer (b) which comprises a mixture of 85-60 wt. % of an aliphatic polyamide resin, and 15-40 wt. % of an aromatic copolyamide resin which is a copolymer of aliphatic diamine/isophthalic acid and aliphatic diamine/terephthalic acid, and an inner surface layer (c) which essentially comprises a copolymer of ethylene and &agr;-olefin having a density below 0.915. The heat-shrinkable multilayer film has been biaxially stretched and then heat-treated to have hot-water shrinkabilities at 80° C.

Abstract: A heat insulating paper cup having an improved seal. The cup can include a body member having an inside surface and an outside surface, and a bottom panel member having a upper surface and a bottom surface. The body member is coated (or in some instances partially coated) on its outside surface with a foamed low density polyethylene, and on its inside surface with an unfoamed modified low density polyethylene. The bottom panel member is coated on its upper surface with a foamed or an unfoamed low density polyethylene or foamed or unfoamed modified low density polyethylene. The body member and bottom panel member are oriented and joined to form a heat seal at an interface between a portion of the unfoamed modified low density polyethylene coated on the inside surface of the body member and a portion of unfoamed low density polyethylene or unfoamed modified low density polyethylene coated on the upper surface of the bottom panel member.

Abstract: A process for forming a cutting edge on a carton board or box board in which a polymeric tape is adhered to a box or carton blank, cuts are made in the tape and box or carton blank and form virtual teeth that, upon folding the blank and tape to form a carton or box, produce teeth that project outward from the tape and provide a cutting edge for cutting materials dispensed from the carton or box.

Abstract: A dustproof covering film-attached wafer support comprising a base, a silicone rubber layer substantially uniform in thickness and integrated with the base and a dustproof covering film, with the dustproof covering film is attached to the silicone rubber layer in a state that the peel strength between the dustproof covering film and the silicone rubber layer is from 5 to 500 g/25 mm, thereby enabling the covering film to be peeled apart as the need arises; and a production method for such a wafer support.

Abstract: An image stripping apparatus includes: a stripping roller which strips an image forming material from an image recording medium by contacting the image forming material on the image recording medium; a cleaning roller for removing, from the stripping roller, the image forming material which has been transferred to the stripping roller; and a cleaning blade stripping the image forming material from the cleaning roller. The stripping roller has a surface layer made of a material having affinity and releasability with respect to the image forming material and the image recording medium. Thus, the stripping roller exhibits peelability required for stripping of the image forming material from the image recording medium and releasability required for removal of a transferred image forming material from the stripping roller.

Abstract: Backing materials which have been given a self-adhesive treatment on at least one side, characterized in that the self-adhesive composition is a pressure-sensitive hotmelt adhesive composition which at a frequency of 0.1 rad/s has a dynamic-complex glass transition temperature of less than −3° C., preferably from −6° C. to −30° C. and, with particular preference, from −9° C. to −25° C., and their use, in particular, for producing medical products such as plasters, bandages or dressings.

Abstract: The invention provides low temperature thermally activatable water-dispersed adhesive compositions and adhesives made from the compositions by removing water. The adhesive compositions of the invention comprise a mixture of low modulus crystallizing polyester polyurethane, acrylic ester copolymer, one or more hydrophobically-modified associative polyurethanes, and a stabilizer system comprising a combination of carbodiimide and branched primary amino alcohol.

Abstract: Thermosettable PSA compositions of the invention comprise a major proportion of the adhesive component of at least one acidic polymer and at least one amine-containing compound capable of reacting with acidic functional groups on the acidic polymer to cure the thermosettable PSA composition into a thermoset adhesive. The thermosettable PSA compositions are particularly useful for forming semi-structural or structural bonds. Thermoset adhesives therefrom and methods of forming the thermoset adhesives are also disclosed.

Abstract: A peelable, heat-sealable foil for closing containers, for example cups, of synthetic plastics material, in particular polystyrene, consists of one single, biaxially oriented layer of impact-resistant polystyrene, in admixture with a styrene-butadiene-double-blockcopolymer.

Abstract: A heat-transfer label assembly. In one embodiment, the assembly comprises a carrier, the carrier comprising a paper substrate overcoated with a layer of polyethylene. The polyethylene layer is overcoated with a skim coat of wax. One or more heat-transfer labels are printed onto the skim coat and are spaced apart from one another, each label comprising a protective lacquer layer printed onto the skim coat, an ink design printed onto the protective lacquer layer, and a heat-activatable adhesive layer printed over the ink design, any exposed areas of the protective lacquer layer and a surrounding area of the skim coat. The periphery of the skim coat extends beyond the periphery of the label and is, therefore, uncovered by the label. The assembly further comprises a mask deposited over the uncovered areas of the skim coat, the mask adhering to the polyethylene layer during label-transfer and preventing transfer onto an article of the previously uncovered areas of the skim coat together with the label.

Abstract: The present invention provides an adhesive composition comprising a copolymer (a) of a methylmethacrylate (MMA) and/or a butylmethacrylate (BMA) and a styrene (St), also provides an adhesive composition comprising a mixture of an acrylic polymer (b) and a ketone resin, wherein the acrylic polymer (b) is at least one polymer selected from the group consisting of a poly MMA, a poly BMA, a MMA/BMA copolymer or a MMA/BMA/St copolymer, and also provides a thermal transfer sheet having a layer comprising the adhesive composition. The adhesive composition has excellent heat sealing characteristics and resistance to blocking when it is used for the formation of an adhesive layer, is also superior in miscibility with various organic or inorganic additives and allows these additives to exhibit their functions sufficiently when these additives are added and has high transparency.

Abstract: The present invention relates to a heat sealable element, which comprises a support, a heat sealing layer comprising a thermoplastic polymer which melts in the range of 50-250° C., a wax which melts in the range of 50-250° C., or combinations thereof, and an image layer which comprises at least one polymer which is capable of selectively receiving and retaining water base colorants. The present invention further relates to a process for heat sealing an image, which comprises imaging the above-mentioned heat sealable element and heating the imaged element in order to melt the imaging layer and heat sealing layer to form substantially a single layer and encapsulating the water base colorant in the single layer.

Abstract: Non-wax film structures having three layers wherein the first skin layer comprises a polymer or blend of polymers and a hydrogenated aliphatic hydrocarbon additive; a second core layer comprises a polymer or a blend of polymers, a hydrogenated aliphatic hydrocarbon additive and regrind material; and a third sealant layer comprises a polymer or blend of polymers and a cheese release agent are disclosed. The film structures are useful in the packaging of food products, especially cheese.

Abstract: At least one-sidedly self-adhesively treated backing material which is coated partially with a self-adhesive composition and which under a tensile load of 10 N/cm has an extension of greater than 10% so that the backing material following application can be detached from the substrate by pulling in the direction of the bond plane.

Abstract: The present invention provides a cover tape for packaging electronic components, which can prevent troubles associated with the peeling strength or appearing during mounting of the electronic components, which can be produced at a low cost, and which is transparent; that is, a cover tape which has a peeling strength not too high and not too low and small in difference between the maximum value and the minimum value and which has high transparency. Specifically, the present invention provides a cover tape for packaging electronic components, which can be heat-sealed to a plastic-made carrier tape having pockets capable of storing electronic components, formed regularly therein and which comprises (A) a biaxially oriented film layer made of a polyester, a polypropylene or a nylon and (B) a thermoplastic resin layer composed of 100 parts by weight of an ethylene copolymer and 10 to 100 parts by weight of a polystyrene, laminated to one side of the layer A.

Abstract: Disclosed is a composition provided with biodegradable property and transparency which is excellent in heat sealing property at low temperatures, peelability and adhesiveness to substrate as well as a film or laminate of the composition. The composition comprises as indispensable components thereof 27-70% by weight of polylactic acid, 70-27% by weight of an aliphatic polyester, and 1-20% by weight of a tackifier selected from the group consisting of: an aliphatic cyclic hydrocarbon resin, a metal salt of a rosin ester, and a rosin ester having an acid number of 10 or less.

Abstract: A stretch film heat-sealable to polystyrene-based material comprising a first outer heat-sealing layer, a second outer layer and at least an intermediate layer, comprising in the first outer heat-sealing layer a TPE-S such as a styrene-butadiene-styrene block terpolymer (SBS) or a hydrogenated derivative thereof. Also described are packages made with the new stretch film.

Abstract: A threadlike or ribbonlike elastic strand is provided with a substantially continuous filament of adhesive helically wrapped around the elastic strand. The elastic strand is suitable for use in disposable absorbent products such as diapers and adult incontinent products. Also disclosed is a method and apparatus for making such adhesive-wrapped elastic strands.

Abstract: A method of making a quilt includes a batting including a heat activated adhesive coating each side or faces of the batting. The quilt covers are attached to the batting by sequentially placing the covers onto the respective batting faces and heating each cover and adjacent adhesive by moving a hot iron over each cover. The covers are connected to each by a plurality of spaced yarn or other suitable decorative connecting means which extend through the covers and batting to secure the batting in place and may form a desired decorative pattern. The inactive adhesive remains in the quilt or is removed by washing of the quilt. The batting with the inactive adhesive is provided as a commercially available product.

Abstract: A method for retarding the deterioration rate of acidic paper is disclosed. The method includes placing an acidic paper article in a polymer film enclosure having a reservoir of deacidifying agent. The deacidifying agent migrates over time to the paper article in an amount sufficient to retard the deterioration rate of the paper. The method can further include placing in the polymer film enclosure a carrier material having a second reservoir of deacidifying agent. An article for retarding the deterioration rate of acidic paper is also disclosed. The article includes a polymer film enclosure having a reservoir of deacidifying agent. The polymer film enclosure is capable of enclosing an acidic paper article. The deacidifying agent is capable of migrating over time to the acidic paper article enclosed therein in an amount sufficient to retard the deterioration rate of the paper. The article can further include a carrier material having a reservoir of deacidifying agent.

Abstract: The invention provides a method for imparting topographical or protective features to a substrate by contacting a sheet material comprising a thermoplastic layer with a substrate and heating the sheet material to an elevated temperature. The invention also provides a sheet material which comprises at least one layer consisting essentially of one or more thermoplastic, melt-flowable polymers that are semi-crystalline at room temperature.

Abstract: A novel form construction comprising a substrate (e,g., a form sheet or roll goods) having a digital printable surface portion and a release surface portion, on which release coating surface portion a signage with a pressure-sensitive adhesive can be releasably adhered. A digital printable release coating composition is also provided.

Abstract: A conformable coating, comprising a heat-shrink polymeric matrix sheet embedded with and enveloping active and constant tonal and coloring material and coated with an adhesive layer, is used for the permanent retrofit to the surface of a vehicle for functional and decorative coloration. The method of utilization comprises the steps of applying the matrix sheet, followed by thermally conforming the matrix sheet to the vehicle, and finally thermally activating the adhesive to achieve permanent coating attachment.