Abstract: Methods and systems for coating measurements are provided. A system for obtaining characteristics of a target coating layer include a clearcoat layer having a first surface and a second surface. A removable front support layer has an upper surface and a lower surface, where the lower surface is affixed over at least a portion of the second surface of the clearcoat layer. A back support layer has an inner surface and an outer surface, and at least a portion of the inner surface includes an adhesive layer. A separation layer is affixed over at least a portion of the adhesive layer, and the separation layer is removable from the adhesive layer.

Abstract: The present invention is related to a peelable film to be sealed on a polyester-based substrate comprising a coextraded multilayer structure comprising:—a rupturable polyester-based sealant layer;—an adhesive layer in contact with said rupturable layer, comprising a polymer selected from the group consisting of ionomers, maleic anhydride grafted polyolefin, EVA, EBA, EMA and EAA;—a gas-barrier layer in contact with said adhesive layer, comprising a gas-barrier polymer selected from the group consisting of EVOH and polyamide, characterised in that the average peel strength between the adhesive layer and the rupturable sealant layer is lower than 15 N/15 mm, preferably lower than 13 N/15 mm as measured in a 180° peel geometry.

Abstract: Disclosed is a cover film and an electronic component package that uses the cover film as a lid material for a thermoplastic resin carrier tape, the cover film having at least a substrate layer, an intermediate layer, and a heat sealing layer having a thermoplastic resin which can be heat-sealed to a carrier tape, the intermediate layer including a metallocene straight-chain low density polyethylene, the metallocene straight-chain low density polyethylene having a TMA softening temperature of 90 to 109° C. according to JIS K7196, and the cover film in some instances having a release layer between the intermediate layer and the heat sealing layer.

Abstract: A composite tack film is provided. The composite tack film includes a) a first polymer layer including a thermally conductive polymer having a melting temperature of less than about 100° C.; b) a second polymer layer adjacent the first polymer layer, the second polymer layer including a visco-elastic, thermally conductive polymer having a melting temperature of less than about 110° C.; and c) a third polymer layer adjacent the second polymer layer, the third polymer layer including a thermally insulative polymer having a melting temperature of less than about 100° C. Further included is a method of reinforcing pavement with the aforementioned composite tack film.

Abstract: The present invention relates to a pressure-sensitive hotmelt adhesive composition suitable for sticking permanent-tack self-adhesive labels to any type of smooth or rough surface, an item comprising said adhesive composition, and the method of preparing said item.

Abstract: This disclosure discloses an adhesive tape having a dimension in a thickness direction, comprising a tape base layer, an adhesive layer, a separation material, and a separation layer. The adhesive layer is disposed on one side of the tape base layer in the thickness direction and is including a predetermined adhesive. The separation material separably adheres to the adhesive layer, and is provided on the one side of the adhesive layer in the thickness direction. The separation layer is provided on the other side of the tape base layer in the thickness direction and is including an olefin resin separating agent or an acrylic resin separating agent having a long-chain alkyl group.

Abstract: The present subject matter provides an adhesive article having a release agent or liner that is free of silicon-containing and fluorine-containing material, and related methods of adhering a backing material of the adhesive article to a substrate. The adhesive article utilizes an amorphous polyvinyl alcohol layer that facilitates removal of an optional release liner from an adhesive layer. Upon removal of the release liner, the amorphous polyvinyl alcohol layer remains disposed on the adhesive layer. A method of adhering the backing material to a substrate includes dissolving the amorphous polyvinyl alcohol layer and disposing the backing material to a substrate. During dissolution of the amorphous polyvinyl alcohol layer, a weak, temporary bond is formed between the substrate and the backing material. When the amorphous polyvinyl alcohol layer substantially dissolves and dries, the adhesive layer is exposed and forms a permanent bond with the substrate.

Abstract: A pressure-sensitive adhesive tape that can be used in a temperature environment of at least 90° C. or higher, includes: a pressure-sensitive adhesive layer; and a release liner provided on the surface on at least one side of the pressure-sensitive adhesive layer. The release liner has: a base layer containing a polyolefin resin; and a release layer that contains low-density polyethylene and is provided on at least one side of the base layer to be in contact with the pressure-sensitive adhesive layer.

Abstract: The present subject matter provides a layered article for sealing an opening in a package for a high alcohol content product. The layered article has a facestock, a reclosure adhesive, a machine direction oriented film, and a sealing adhesive. The sealing adhesive provides a good long-term seal for the package that is resistant to degradation from alcohol. The machine direction oriented film provides an alcohol barrier between the product and the reclosure adhesive. Upon opening, the film tears clean and straight in the machine direction to allow a portion of the film to stay in contact with the package and another portion of the film to be pulled from the package to expose the opening. The reclosure adhesive provides resealing capabilities for the layered article after the initial opening of the package. The clean straight tear also provides a tamper evident feature for the package.

Abstract: Provided is a pressure-sensitive adhesive sheet formed of at least two layers, including a rubber-based pressure-sensitive adhesive layer (A) and an acrylic pressure-sensitive adhesive layer (B) that are directly laminated, in which the pressure-sensitive adhesive sheet has a large interlayer peel strength. The pressure-sensitive adhesive sheet is a pressure-sensitive adhesive sheet formed of at least two layers, including a rubber-based pressure-sensitive adhesive layer (A) and an acrylic pressure-sensitive adhesive layer (B) that are directly laminated, in which the pressure-sensitive adhesive sheet has an interlayer peel strength upon peeling of the acrylic pressure-sensitive adhesive layer (B) from the rubber-based pressure-sensitive adhesive layer (A) under conditions of a measurement temperature of 23° C., a tension speed of 0.3 m/min, and a peel angle of 180° C. of 2.0 N/20 mm or more.

Abstract: A non-conductive protective covering for an electronic device is disclosed. The protective covering includes a first polymeric film having a modulus of elasticity of at least about 100×103 psi and a second polymeric film having a modulus of elasticity of less than about 100×103 psi, wherein the first polymeric film is attached to a first side of the second polymeric film.

Abstract: A pressure-sensitive adhesive label including: a support layer; a pressure-sensitive adhesive layer disposed on the support layer; a function layer disposed on the pressure-sensitive adhesive layer; and a release layer disposed on the function layer, wherein the function layer is configured to be opened by heating to expose the pressure-sensitive adhesive layer. In this manner, by providing the release layer as the uppermost layer, the pressure-sensitive adhesive label can be prevented from adhering onto the thermal head, that is, the sticking can be prevented, and hence the position and shape of the opening of the function layer can be accurately controlled.

Abstract: Provided is an impact absorbing material comprising a resin composition which contains (A) a block copolymer comprising polystyrene in its both end blocks and a conjugated diene polymer in its middle part block and (B) a thermoplastic resin, wherein the block copolymer (A) contains (A1) a block copolymer whose middle part block is not hydrogenated and (A2) a block copolymer whose middle part block is hydrogenated, wherein the maximum peak temperature of loss tangent (tan ?) of the block copolymer (A1) as obtained by a dynamic viscoelasticity measurement is in the range of ?20° C. or higher and lower than 25° C., and the maximum peak temperature of loss tangent (tan ?) of the block copolymer (A2) as obtained by a dynamic viscoelasticity measurement is in the range of ?30° C. or higher and lower than 25° C.

Abstract: A thermosettable pressure sensitive adhesive tape comprising at least first and second adhesive layers bonded together. Each of the adhesive layers comprises a thermosettable pressure sensitive adhesive, which is the photo-polymerization reaction product of starting materials. The starting materials for each adhesive layer comprises at least a photo-polymerizable acrylic component and a thermosettable epoxy component. The thermosettable pressure sensitive adhesive, used for either of the two adhesive layers, is not black when fully cured without the presence of a black coloring pigment. The first adhesive layer is made from a layer of starting materials that is thin enough to allow substantial photo-polymerization of the starting materials, even with the starting materials containing a sufficient amount of a black coloring pigment to cause the first adhesive to have a black color after the first adhesive is substantially cured.

Abstract: A sheet for forming a hard coating having outstanding low-temperature formability and slip properties and a composition for hard coatings used therefor are disclosed. The sheet for forming a hard coating includes a coating layer formed on one side thereof and containing a hard coating composition prepared by blending a UV curable resin having a (meth)acryloyl functional group with a bi- or higher valent polycarbonate.

Abstract: A method of protecting a smooth surfaced substrate by a surface protection film that has improved high temperature peel force properties and low residue upon removal of the surface protection film from the smooth surfaced substrate.

Abstract: A rubber pad capable of repeated washing and peeling includes a substrate, made of a sheet of certain thickness and area and defined into a first and a second side surface. An inertia adhesive layer is incorporated onto the first side surface to form an inertia bonding surface. The inertia bonding surface can be repeatedly peeled-off without residual colloid, and the temperature resistance range is between ?20° C. and 120° C. An adhesion layer; incorporated onto the second side surface is made of glue of high adhesive capacity to form an adhesion surface. The adhesion surface is adhered securely at one time without repeated peeling-off. At least a debonding layer is attached onto at least the adhesion surface or inertia bonding surface in a peeling-off state.

Abstract: A composite intermediate panel comprises a structural layer providing the structural integrity of the composite intermediate panel. Pressure-sensitive adhesive layers are on opposite main surfaces of the structural panel, the pressure-sensitive adhesive layers applied in plant. A backing sheet layer is provided for each adhesive layer, the backing sheet layer adhered to the pressure-sensitive adhesive layer, and being peelable off the pressure-sensitive adhesive layer to expose the pressure-sensitive layer. Attachment units of rigid material are on one of the main surfaces of the building panel, the attachment units being positioned at a location where mechanical fasteners secure the building panel to a structure.

Abstract: Disclosed is a release sheet including a substrate and a resin layer formed on the substrate. The resin layer includes: 100 parts by mass of an acid-modified polyolefin resin including an acid-modifying component in a content of 1 to 10% by mass; and 1 to 50 parts by mass of a crosslinking agent and/or 5 to 1000 parts by mass of polyvinyl alcohol. The crosslinking agent is composed of a carbodiimide compound and/or an oxazoline compound.

Abstract: An article (1) of a medical and technical nature intended to be affixed to skin, or a component for affixing a medical article or part thereof to skin, which article or component comprises a layer of carrier material (2) that has a layer (3) of a soft skin-friendly adhesive on one side, and a protection layer (4) that protects the adhesive layer before use of the article or component and is affixed to the adhesive layer in such a way that it is releasable. According to the invention, the protection layer (4) is provided with a pattern of projections (6) on the side facing towards the adhesive layer (3) and a reinforcing layer (5) is arranged on the layer of carrier material (2), on the opposite side to the side that has the layer of soft skin-friendly adhesive, in such a way that it can be removed.

Abstract: To enable a pressure-sensitive adhesive region and a non-pressure-sensitive adhesive region to be set immediately before use of a pressure-sensitive adhesive label in accordance with the purpose of use, provided is a pressure-sensitive adhesive label, including: a base; a pressure-sensitive adhesive layer provided on the base; a thermosensitive film provided on the pressure-sensitive adhesive layer; and the pressure-sensitive adhesive region including a plurality of openings through which the thermosensitive film is opened to expose the pressure-sensitive adhesive layer. The pressure-sensitive adhesive region includes an opening pattern in which the plurality of openings are arranged regularly. Thus, it is possible to set the pressure-sensitive adhesive region and the non-pressure-sensitive adhesive region immediately before the use of the pressure-sensitive adhesive label in accordance with the purpose of use.

Abstract: A protective touch screen guard for a hand held electronic device having a front face with a touch screen portion. The protective touch screen guard has a flat transparent displaying section having a front and back side. The displaying section is the same size as the front face of the electronic device and can be pressed to operate the touch screen features of the device. An adhesive is positioned on the back side of the displaying section to hold the screen onto the front fact of the device without leaving adhesive residue. A release film is positioned over the adhesive to protect the adhesive surface before adhering the screen onto the front face of the electronic device.

Abstract: The present application is directed to a hardcoat film article comprising a cured hardcoat layer disposed on a release liner, and a thermoplastic layer on the cured hardcoat layer opposite the release liner. The thermoplastic layer has a thickness of at least about 25 micrometers. In other embodiment, the thermoplastic layer is opaque. The release liner comprising a release material formed by irradiating a release material precursor. Additionally, this application is directed to a method of forming a composite film comprising providing a release liner, coating a hardcoat composition onto the release liner to form a hardcoat layer, and curing the hardcoat layer to form a cured hardcoat layer. A thermoplastic layer is disposed onto the cured hardcoat layer to form a hardcoat composite film, and the hardcoat composite film is attached to an adhesive layer opposite the cured hardcoat layer.

Abstract: Pressure sensitive adhesive composition and multilayer easy peel re-closable structures thereof, comprising a butene-1 (co)polymer (A) having a content of butene-1 derived units of 80 wt % or more; a flexural modulus (MEF) of 80 MPa or less; a melting temperature DSC (TmI) lower than 110° C., and optionally a tackifier (B).

Abstract: A release liner formed of a polypropylene resin sheet that can be highly recyclable and that can provide an excellent performance in a wide range of operating temperature is provided. A release-lined pressure-sensitive adhesive (PSA) sheet constituted with the release liner is also provided. A release-lined PSA sheet 1 according to the present invention comprises a PSA sheet 20 having a support 22 and a PSA layer 24; and a release liner 10 placed on the PSA layer 24. The release liner 10 has a layered configuration formed of a layer A 12 formed of a polypropylene resin composition containing a nucleating agent; and a layer B 14 formed of a polypropylene resin composition containing no nucleating agent; wherein the two layers stacked to form the thickness of the liner.

Abstract: A film transfer sheet including a sheet substrate provided with a layer via a resin layer and a peelable transparent sheet provided with an adhesive layer. The sheet substrate and the peelable transparent sheet are laminated together such that the layer is overlapped on the peelable transparent sheet and peeling is designed to occur between the layer and the peelable transparent sheet so as to transfer the peelable transparent sheet provided with the adhesive layer to a transfer-receiving member. The resin layer includes as an essential component a pressure-sensitive adhesive having a storage elastic modulus of 3.0 ×105 Pa to 1.2 ×106 Pa at a temperature of 130° C. to 150° C. Also provided is an intermediate transfer recording medium including a sheet substrate provided with a layer via resin layer and a peelable transparent sheet provided with a dye receptive layer, in which the sheet substrate and the peelable transparent sheet are laminated together.

Abstract: A laminated tape includes: an adhesive material layer; a first polyolefin layer provided on one side of the adhesive material layer; and a second polyolefin layer provided on the other side of the adhesive material layer. The laminated tape is sandwiched between opposing base films of a packaging body to be welded. The polyolefin used for the first polyolefin layer and the second polyolefin layer is of the same type. The thickness of the respective layers of the laminated tape is preferably defined so that the thickness of the first polyolefin layer and the adhesive material layer is 30 ?m or more and the thickness of the second polyolefin layer is less than 30 ?m.

Abstract: The present application is directed to a multilayer film The film comprises a thermoplastic receptor layer comprising a polyurethane, a thermoplastic core layer on the receptor layer comprising an acidic group or an anhydride group, and a thermoplastic primer layer on the core layer opposite the receptor layer comprising a nitrogen containing polymer. In some embodiments, the multilayer film includes additional layers. For example, an adhesive layer may be on the primer layer opposite the core layer. In another embodiment, a release layer is on the adhesive layer opposite the primer layer. In another embodiment, a liner layer is on the release layer opposite the adhesive layer.

Abstract: A decorative laminate includes a laminate substrate coated with an adhesive layer. The adhesive layer is a layer of a physically setting, solvent-free adhesive material including an acrylic polymer. The adhesive layer is self-adhesive at room temperature. The adhesive-coated laminate substrate has a peeling-off force of at least 0.2 N/mm2, after application on a carrier. A method for the production of the adhesive-coated laminate substrate, its use as a coating material, and a composite of the adhesive-coated laminate substrate and a carrier material are also provided.

Abstract: Provided is a PSA sheet formed by co-extrusion of a PSA layer and a layer (release layer) releasable from the PSA layer, wherein the PSA layer comprises an acrylic polymer as its base polymer. A PSA sheet 10 comprises a middle layer 12 that comprises an acrylic block copolymer as its base polymer and is adhesive at 23° C., a release layer 14 that is laminated on a first face 12A of the middle layer 12 and is releasable from the middle layer, and a non-releasing layer 16 that is laminated on a second face 12B of the middle layer 12 and is non-releasable relative to the middle layer. The non-releasing layer 16 may be adhesive or non-adhesive at 23° C.

Abstract: Provided is a PSA sheet formed by co-extrusion of a PSA layer and layers (release layers) releasable from the PSA layer. A PSA sheet 10 comprising a PSA layer 12 comprising an acrylic block copolymer as its base polymer, an RA layer 14 laminated on a first face 12A of the PSA layer 12, an RB layer 16 laminated on a second face 12B of the PSA layer 12, with these layers having been co-extruded. Both the RA layer 14 and the RB layer 16 are releasable from the PSA layer 12.

Abstract: A release liner formed of a highly recyclable polypropylene-based resin sheet and capable of assuring excellent operability over a wide range of environmental temperature is provided. A pressure-sensitive adhesive (PSA) sheet with release liner is also provided. A PSA sheet with release liner according to the present invention comprises a PSA sheet including a support and a PSA layer; and a release liner formed of a polypropylene-based resin sheet which is obtained by molding into a sheet a polypropylene-based resin composition containing a nucleating agent. The PSA sheet with release liner provides excellent operability even in a high temperature environment of, for example, about 35° C. The PSA sheet with release liner is preferably applicable in an attachment operation wherein the PSA sheet is attached to an adherend while the liner is released from the PSA sheet.

Abstract: A double-sided adhesive tape rolled on a cylindrical roll core includes a polyethylene terephthalate film having a first surface and a second surface opposite to the first surface, a first adhesive layer applied on the first surface of the polyethylene terephthalate film, a release sheet laminated on the first surface of the polyethylene terephthalate film through the first adhesive layer, the release sheet being laminated so as to turn exterior to the polyethylene terephthalate film, and a second adhesive layer applied on the second surface of the polyethylene terephthalate film. In the double-sided adhesive tape, 100 N/m or larger of tensile force is applied to the polyethylene terephthalate film when the release sheet is laminated onto the first adhesive layer applied on the first surface of the polyethylene terephthalate film.

Abstract: According to various embodiments, a film assembly may include a protective film, first and second removable opposing tabs, an adhesive, and a split release liner. The first and second opposing tabs may be configured to facilitate the alignment of the protective film with respect to a surface of a portable electronic device. Once aligned, a minority portion of the split release liner may be removed exposing a minority portion of the protective film coated with the adhesive. The minority portion of the protective film may then be adhered to the surface of the portable electronic device. Subsequently, the remaining sections of the split release liner may be removed and the protective film may be fully adhered to the surface of the portable electronic device. Once fully adhered, the first and second opposing tabs may be removed.

Abstract: An adhesive stack may comprise a shear layer positioned between two adhesive layers, wherein the shear layer is designed to fail upon application of a deliberate and appropriate shear force and before the failure of the adhesive layers. The adhesive stack may aid in securing components within an electronic device to prevent movement of the component when the device is dropped, hit, or bumped. The adhesive stack may occupy minimal space within the device, and reduce the cost of securing the component within the device's interior. The adhesive stack may allow for replacement of the component by an authorized person applying an appropriate and deliberate force. The adhesive stack may aid in identifying components replaced by an unauthorized person.

Abstract: The present invention provides a double-sided adhesive tape in which the adhesive strength between a substrate and each adhesive layer is high and the rupture of the substrate is unlikely to occur. Also, the present invention is a method for producing a double-sided adhesive tape having a polytetrafluoroethylene porous film substrate and adhesive layers formed respectively on both sides of the substrate. The method includes the following steps (1) to (4) in order: (1) the step of putting an adhesive composition on a first release liner; (2) the step of bonding the first release liner on which the adhesive composition has been put to one main surface of the polytetrafluoroethylene porous film substrate; (3) the step of forming a first adhesive layer by heating the substrate to which the first release liner has been bonded; and (4) the step of providing a second adhesive layer on another main surface of the substrate, a part of an adhesive in the second adhesive layer being penetrated into the substrate.

Abstract: A label including a plastic base layer (e.g. polypropylene), an overlaminate layer made of an engineering plastic, bonded to the base layer with a pressure-sensitive adhesive, the overlaminate layer having a thickness of between 30 and 40 microns, and a release liner placed over a self-adhesive surface of the base layer.

Abstract: A label including a plastic base layer (e.g. polypropylene), an overlaminate layer made of an engineering plastic, bonded to the base layer with a pressure-sensitive adhesive, the overlaminate layer having a thickness of between 30 and 40 microns, and a release liner placed over a self-adhesive surface of the base layer.

Abstract: A label assembly and method of using the same to label articles durably, yet removably. In one embodiment, the label assembly is used to label fabric articles, such as clothing, and comprises (a) an image forming laminate for forming an image on the fabric article, the image forming laminate comprising an ink layer, the ink layer being bondable to the fabric article; and (b) an image removing laminate for removing the image from the fabric article, the image removing laminate comprising a remover layer, the remover layer, upon being activated by heat and/or light, being bondable to the ink layer of the image forming laminate; (c) whereby, upon bonding of the image removing laminate to the ink layer, the bonding between the image removing laminate and the ink layer is stronger than the bonding between the ink layer and the fabric article.

Abstract: Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB)n type.

Abstract: The present invention provides a polyolefin-based release agent containing liquid hydrocarbon with viscosity at 38° C. of 5-1500 Pa·s as measured according to JIS K7117-1.

Abstract: A part having foam tape integrated into a base component. The base component of the part is a body side molding which is attached to a vehicle using an adhesive. More specifically, the part includes a foam layer integrally formed with the body side molding such that a first side of the foam layer is formed with the body side molding, and an adhesive layer attached to a second side of the foam layer. A release film material is selectively attached to the adhesive layer such that the adhesive layer is disposed between the release film material and the foam layer. The release film material is able to be removed from the adhesive layer, and the body side molding is attached to a vehicle using the adhesive layer. The body side molding is used to protect the vehicle, as well as provide an improvement in the appearance of the vehicle.

Abstract: Provided is a release agent capable of maintaining the inherent detachability of polyolefin and showing good adhesion to the substrate and a release material using the release agent, and an adhesive tape having such release material. A release agent containing at least a polyolefin, an aromatic isocyanate having three or more isocyanate groups in one molecule, and a polyolefin polyol having a number-average molecular weight of 1500 to 5000.

Abstract: A double-sided pressure-sensitive adhesive tape 10 according to an embodiment of the present invention includes: a first pressure-sensitive layer 30 that serves as a pressure-sensitive adhesive surface to a surface plate; a second pressure-sensitive adhesive layer 40 that serves as a pressure-sensitive adhesive surface to a polishing member; and a substrate 20 between the first pressure-sensitive adhesive layer 30 and the second pressure-sensitive adhesive layer 40. In the double-sided pressure-sensitive adhesive layer 10 having such a layer structure, the loop tack adhesive strength of the first pressure-sensitive adhesive layer 30 is 16 N/50 mm or less.

Abstract: The invention regards a water-base acrylic premanufactured waterproofing material and the procedure for obtaining the same. The material includes a substrate, base or support to give it a continuous structure adapted to receive on its top side a first layer of a water-base acrylic waterproofing composition forming a waterproof film and at least one second layer forming a waterproof film on this first layer, of a water-base acrylic waterproofing composition, equal to or different from the composition of the first layer, having, in addition, opposite the side where the at least two layers of an acrylic waterproofing composition are applied, a layer or film of an adhesive.

Abstract: Disclosed herein is a release sheet including: a base material; and a release agent layer provided on the base material, wherein the release agent layer is formed by curing a material mainly constituted of a diene-based polymer and contains substantially no silicone compound, and wherein Mooney viscosity (ML1+4 (100° C.)) of the diene-based polymer before curing which is measured according to JIS K6300 at a temperature of 100° C. is in the range of 40 to 70. It is preferred that the material before curing is mainly constituted of one or two or more diene-based polymers having a cis-1,4 bond content of 90 to 99%.

Abstract: A multilayer laminate including a liner, a film, and an adhesive layer between the liner and film layers is described. The laminate includes a first release layer between the film layer and the adhesive layer, and a second release layer between the liner and the adhesive layer. The release characteristics of the two release layers are controlled to thereby enable the film layer, after receiving printed designs and/or text, to be removed from the remaining portion of the laminate, re-oriented, and then re-applied to the remaining portion of the laminate. Related methods associated with reconfiguring the laminate and application to articles or other receiving surfaces are also described.

Abstract: A reclosable film structure for a package is disclosed, in particular a reclosable lap seal, comprising a multiple layer film with an interior pressure sensitive adhesive layer, and methods of manufacture thereof. The pressure sensitive adhesive layer is positioned between a first and a third layer on either side of the pressure sensitive adhesive layer and is continuous throughout the package. The package is heat sealed at an open end to initially close the package by folding over an outer lap seal segment onto an inner lap seal segment and heat-sealing together. Upon opening the package at the lap seal, the package delaminates between the first and second layers along one of the lap seal segments, thus exposing the pressure sensitive adhesive layer to facilitate reclosing the package, oriented away from the package interior and away from the food removal path to maintain the adhesion strength by avoiding food contact.

Abstract: The double-faced adhesive tape has a substrate, an acrylic pressure-sensitive adhesive layer, a rubber pressure-sensitive adhesive layer, and a first release liner that is formed on an external side of the rubber pressure-sensitive adhesive layer, and a second release liner that is formed on an external side of the acrylic pressure-sensitive adhesive layer. The first release liner each has a polymer layer and a paper substrate layer. Further, the second release liner each has a polymer layer and a paper substrate layer. Dynamic friction coefficient on the surface of each polymer layer is less than 1.0, when the coefficient is measured according to JIS K7125.

Abstract: The present invention provides a double-sided pressure-sensitive adhesive tape or sheet including a bubble-containing pressure-sensitive adhesive layer; and a releasable liner protecting a pressure-sensitive adhesive surface of the bubble-containing pressure-sensitive adhesive layer, said releasable liner comprising at least a releasably treated layer formed by an ionizing radiation-curable silicone type releasing agent, in which the releasably treated layer formed by the ionizing radiation-curable silicone type releasing agent is employed onto a pressure-sensitive adhesive surface on the heavier releasable side. The double-sided pressure-sensitive adhesive tape or sheet may employ a bubble-containing pressure-sensitive adhesive layer formed by a bubble-containing pressure-sensitive adhesive composition in the form in which a gas component is mixed in a pressure-sensitive adhesive composition.