Abstract: A multilayer sheet includes a core layer including a composition including about (60) to about (90) weight percent of polyphenylene, about (0) to about (20) weight percent of polystyrene, about (10) to about (20) weight percent of a hydrogenated block copolymer of an alkenyl aromatic compound and a conjugated diene, and optionally, a flame retardant additive; and a first cap layer disposed on a surface of the core layer, wherein the first cap layer includes polypropylene.

Abstract: A vacuum insulated appliance structure, comprising: a first layer of a first polymer material. A second layer of a second polymer material is molded to (e.g. over) at least a portion of the first layer, and a third layer of a third polymer material is molded to (e.g. over) at least a portion of the second layer to form a first component. At least one of the layers is impervious to one or more gasses. One or more additional components are secured to the first component to form a vacuum cavity. The vacuum cavity is filled with a porous material, and the vacuum cavity is evacuated to form a vacuum.

Abstract: A protective garment containing a composite which has an alternating pattern containing groupings of woven fabric and groupings of biaxially oriented thermoplastic films. The composite has a thickness of greater than about 5 mm. Each grouping of woven fabric contains at least one woven fabric layer, each woven fabric layer containing tape elements having a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. Each grouping of biaxially oriented thermoplastic films contain at least one biaxially oriented thermoplastic film which has a core layer of thermoplastic disposed between covering layers of a thermoplastic able to bond to polypropylene.

Abstract: A method for manufacturing an optical fiber is a method for manufacturing an optical fiber including a glass fiber, and a coating resin layer that coats the glass fiber by being in contact with the glass fiber. The method includes a step of increasing a dissolved oxygen concentration in an ultraviolet ray curable resin composition, a step of applying the ultraviolet ray curable resin composition, in which the dissolved oxygen concentration is increased, onto the glass fiber, and a step of curing the ultraviolet ray curable resin composition by irradiating the ultraviolet ray curable resin composition that is applied onto the glass fiber with an ultraviolet ray.

Abstract: A wearable container containing a composite which has an alternating pattern containing groupings of woven fabric and groupings of biaxially oriented thermoplastic films. The composite has a thickness of less than about 5 mm. Each grouping of woven fabric contains at least one woven fabric layer, each woven fabric layer containing tape elements having a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. Each grouping of biaxially oriented thermoplastic films contain at least one biaxially oriented thermoplastic film which has a core layer of thermoplastic disposed between covering layers of a thermoplastic able to bond to polypropylene.

Abstract: This disclosure relates to a composition comprising (a) a blend; (b) one or more fillers comprising at least one of carbon black, ferrite magnet powder, calcium carbonate, alumina trihydrate, magnesium hydroxide, talc, titanium dioxide, fibers, marble dust, cement dust, clay, feldspar, silica or glass, fumed silica, alumina, magnesium oxide, antimony oxide, zinc oxide, barium sulfate, calcium sulfate, aluminum silicate, calcium silicate, titanium dioxide, titanates, clay, nanoclay, organo-modified clay or nanoclay, glass microspheres, chalk, or any combination thereof. The cross-linking agents comprise organic peroxide, and the coagents comprise at least one of di- and tri-allyl cyanurates and isocyanurates, liquid and metallic multifunctional acrylates and methacrylates, zinc-based dimethacrylates and diacrylates, and functionalized polybutadiene resins and optionally (c) a cross-linking pack including cross-linking agents and coagents.

Abstract: The present disclosure includes a cooling device with a cooling plate for an energy storage unit to be cooled that is arranged or capable of being arranged thereupon and that is in thermal contact with the cooling plate, wherein a thermally conductive foil and a thermally conductive filler layer are arranged between the energy storage unit and the cooling plate.

Abstract: A peelable package is described. The package comprises a first sealant layer comprising low density polyethylene and a first contaminant and a second sealant layer comprising polyethylene polymer, such as high-density polyethylene, low density polyethylene, ethylene alpha-olefin copolymer or blends of such, and a second contaminant. The first contaminant and the second contaminant are selected from the group consisting propylene/ethylene copolymer with ethylene content from about 0.1 mol % to about 5 mol %, polypropylene homopolymer, butene/ethylene copolymer and polybutene homopolymer. The first contaminant of the first sealant layer may be the same as or different than the second contaminant of the second sealant layer. Also described are various embodiments of the first sealant layer, the second sealant layer and the peelable seal that is formed between the first sealant layer and the second sealant layer.

Abstract: A vehicle containing a composite which has an alternating pattern containing groupings of woven fabric and groupings of biaxially oriented thermoplastic films. The composite has a thickness of less than about 5 mm. Each grouping of woven fabric contains at least one woven fabric layer, each woven fabric layer containing tape elements having a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. Each grouping of biaxially oriented thermoplastic films contain at least one biaxially oriented thermoplastic film which has a core layer of thermoplastic disposed between covering layers of a thermoplastic able to bond to polypropylene.

Abstract: A cylinder bore wall thermal insulator includes a base member made of synthetic resin and having a shape conforming to a shape of the groove-like cooling water channel in a setting position of the thermal insulator, an opening for heat-sensitive expanding rubber swelling for heat-sensitive expanding rubber disposed on a rear surface side to pass through a base member during heat-sensitive expansion being formed in a position opposed to an insulating part of a cylinder bore wall, heat-sensitive expanding rubber disposed on the rear surface side of the base member and covering the opening for heat-sensitive expanding rubber swelling, and a rear-surface metal plate covering the rear surface side of the heat-sensitive expanding rubber, fixed to the base member, and holding an outer edge portion of the heat-sensitive expanding rubber between the rear-surface metal plate and the base member to thereby fix the heat-sensitive expanding rubber to the base member.

Abstract: The present invention relates to a polymer blend and to multilayer heat shrinkable films containing at least a layer made of said polymer blend, to flexible containers made of said film, such as bags, pouches and the like, useful for packaging articles, in particular food items. The invention also relates to a process for the manufacturing of such multilayer heat shrinkable films.

Abstract: A vehicle containing a composite which has an alternating pattern containing groupings of woven fabric and groupings of biaxially oriented thermoplastic films. The composite has a thickness of greater than about 5 mm. Each grouping of woven fabric contains at least one woven fabric layer, each woven fabric layer containing tape elements having a base layer of a strain oriented olefin polymer disposed between covering layers of a heat fusible olefin polymer. Each grouping of biaxially oriented thermoplastic films contain at least one biaxially oriented thermoplastic film which has a core layer of thermoplastic disposed between covering layers of a thermoplastic able to bond to polypropylene.

Abstract: Provided herein are membranes including a blend of a propylene-based elastomer and an ethylene copolymer, a thermoplastic resin, a flame retardant, and an ultraviolet stabilizer.

Abstract: The present invention relates to novel polymer compositions, particularly in the form of thermoplastic Vulcanisates, said compositions comprising the reaction product of a first polymer (rubber phase); a second polymer (thermoplastic phase); a carboxylic acid anhydride; either a vinylsilane in combination with a peroxide or a sulphursilane; and whereby said silane is allowed to react with the polymers first. The invention further provides for processes of manufacturing such compositions and for articles comprising such compositions.

Abstract: A pipe sealing gasket is shown which is designed to be received within a raceway provided within a socket end of a female bell plastic pipe end which is assembled with a mating male pipe end to form a plastic pipe joint. The raceway is preformed about the gasket during the pipe belling operation. The gasket has a rubber body portion which is reinforced by a hard plastic band formed as a series of integral, spaced wedges which are interconnected by a flexible ribbon. The hard plastic band acts to prevent extrusion of the gasket during a variety of pressure conditions as well as preventing displacement during field assembly.

Abstract: An improved thermoplastic material for orthoses and prostheses. This material comprises at least one resin layer of polymeric resin, optionally reinforced with multiple layers or internal fibers, designed to be compatible with vacuum thermoforming, with thickness between 3/64 inches and ¾ inches. The material additionally comprises at least one and optionally two extremely thin cap layers with thickness between 2/1000 and 12/1000 inches, at least one of which is intended for improved compatibility with human skin, and the other of which can be configured for various cosmetic or UV protection purposes. Methods of producing this material, and various orthotic and prosthetic devices using this material, are also taught.

Abstract: A composite component made of plastic for decorative elements in the interior of motor vehicles consists of at least one support made of galvanizable plastic and at least one decorative insert made of galvanoresistant plastic, which is undetachably joined to the support. The galvanizable plastic of the support is an acrylonitrile-butadiene-styrene copolymer (ABS); the galvanoresistant plastic of the decorative insert is a cyclo-olefin copolymer (COC) or a polyamide 12 (PA 12).

Abstract: The invention relates to multilayer polymer structures having at least three layers. These layers include a polar capstock layer other than an acrylic, an olefinic substrate layer, and a tie layer. The tie layer is selected from olefinic acrylate copolymers, a block copolymer of vinyl aromatic monomer with an aliphatic conjugated diene or a derivative thereof, a copolymer of olefin and (meth)acrylic acid partially or fully in the salt form, a high impact polystyrene, and/or a vinyl cyanide-containing compound. Each layer could contain multiple sub-layers. The multilayer structure exhibits excellent structural integrity, excellent surface appearance, high impact strength, high scratch resistance, and excellent resistance to UV rays.

Abstract: Disclosed is a weight lifting station floor with a center portion that includes a resilient floor material, a translucent floor material, and a display layer positioned between the resilient floor material and the translucent floor material such that the display layer is visible through the translucent floor material, where the resilient floor material, the translucent floor material and the display layer are integrated together as a unitary structure.

Abstract: An article having a fluid permeation prevention layer, such as a pneumatic tire or hose. A tire for example includes an outer tread layer, intermediate sidewall and carcass layers and an innermost air permeation prevention layer: (i) the air permeation prevention (APP) layer having an upper and a lower surface, the layer having a polymer composition exhibiting an air permeation coefficient (APC) of about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.) or less and a Young's modulus of about 1 MPa to about 500 MPa, the polymer composition comprising: (A) at least 10 wt % of at least one thermoplastic resin component having an APC of about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.) or less and a Young's modulus of more than 500 MPa, which is preferably a polyamide resin or mixture, and (B) at least 10 wt % of at least one elastomer component having an APC of more than about 25×10?12 cc cm/cm2 sec cmHg (at 30° C.

Abstract: The present disclosure is directed to an adhesion promoter composition comprising of a solvent and a functionalized olefin block copolymer, and articles with the adhesion promoter composition applied thereto. The adhesion promoter composition can be halogen-free.

Abstract: A multilayer structure and a method for forming a multilayer structure, the multilayer structure includes: (A) a first polyolefin layer; (B) a styrene polymer layer; (C) a second polyolefin layer; and (D) at least one tie-layer comprising a tie-layer composition. The tie-layer composition includes: (1) 25 to 75 wt. %, based upon the total weight of the tie-layer composition, of a first copolymer, wherein the first copolymer comprises ethylene derived units and units derived from a C4-8 ?-olefin; (2) 5 to 25 wt. %, based upon the total weight of the tie-layer composition, of a polyethylene resin grafted with an ethylenically unsaturated carboxylic acid or acid derivative; (3) 20 to 50 wt. %, based upon the total weight of the tie-layer composition, of a triblock copolymer composition; and (4) optionally, 0.001 to 20 wt. %, based upon the total weight of the tie-layer composition, of a low density polyethylene.

Abstract: A rubber laminate comprises a reinforcing layer and a second rubber layer laminated sequentially on a first rubber layer, at least one outer surface of the first rubber layer and the second rubber layer being covered with an ultra high molecular weight polyethylene layer, wherein the rubber layers covered with the ultra high molecular weight polyethylene layer are formed from a rubber composition comprising from 20 to 40 parts by mass of a softener per 100 parts by mass of a mixed rubber consisting of from 60 to 80% by mass ratio of a diene rubber and 20 to 40% by mass ratio of a ethylene-propylene-diene rubber and/or a butyl rubber.

Abstract: A trim element for the passenger compartment of a motor vehicle, comprising a substrate and a film bonded to it, the film consisting of polypropylene (PP) or a polypropylene copolymer.

Abstract: Disclosed herein is a film having an outer layer A in surface contact with a core layer, wherein the outer layer A includes a plastomer, and wherein the outer layer A contains no more than 0.1 wt. % of a C4-C10-based polymer having an Mw<about 5.00×104 g/mol. A method of controlling the peel cling force of a multilayer blown film, a method to produce a multilayer blown film, a method of wrapping an article, a method of reducing the noise associated with wrapping an article, a roll of stretch wrap film, and a multilayer blown surface protection film are also disclosed.

Abstract: Provided is a transmission sheet constituting a transmission unit used for a non-contact power transmission system, wherein the transmission sheet comprises a functional composite material layer wherein the functional composite material layer is obtained by dispersing conductive filler in a polymer material, wherein an amount of the conductive filler added in the functional composite material layer is 90 parts by mass or less with respect to 100 parts by mass of the polymer material, and wherein a conductivity of the functional composite material layer is 10 S/m or higher.

Abstract: Coextruded films provide cross directional zoned multiple components side-by-side to one another. Systems and methods relate to coextruding such films. During coextrusion, a first polymer conjoins with a second polymer while a temperature differential is maintained between the first and second polymers. This temperature differential is selected to reduce a difference between the viscosities of the first and second polymers making the viscosity of the first polymer close enough to the viscosity of the second polymer to avoid separation upon coextrusion. Further, the films may form a layer in subsequent lamination to other material layers.

Abstract: In one aspect, the disclosure relates to multilayer polymeric films comprising: at least one layer A, and at least one layer B; wherein at least one of layers A and B further comprises at least one copolymer of propylene derived units and one or more C2, and C4 to C10 alpha-olefin derived units, the copolymer having: (a) a C2, and/or C4 to C10 alpha-olefin derived unit content in the range of about 5 to 30 weight %; (b) an intermolecular composition distribution of greater than or equal to 75%; (c) a Tm in the range of from about 25° C. to about 110° C.; (d) a Hf in the range of from about 0.5 to about 70 J/g; (e) a Mw/Mn in the range of from about 1.2 to about 4.5; and (f) a MFR in the range of from about 0.1 to about 40 g/10 min; and wherein the multilayer polymeric film has a seal strength greater than 6.25 N/cm, at a dwell time of 0.75 seconds.

Abstract: A plastic articles is provided. The plastic article includes a base formed by injecting molted resin into a cavity of a female mold, and a film attached to the base. The base includes a first edge, the film comprises a second edge level to the first edge of the base.

Abstract: Disclosed herein are various exemplary embodiments of electromagnetic interference (EMI) shielding heat shrinkable materials and articles (e.g., tapes, etc.). In an exemplary embodiment, an EMI shielding heat shrinkable tape includes a heat shrinkable layer and an EMI shielding layer. When heated to a shrink temperature of the heat shrinkable layer, the tape may shrink lengthwise.

Abstract: Provided is a resin article having a layer-separated structure. The resin article may include a first resin layer and a second resin layer formed on the first resin layer. Also, the component of the first resin layer is detected on a surface of the second resin layer by infrared spectrometer. The resin article may have improved mechanical and surface characteristics. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased.

Abstract: A laminate is disclosed comprising a polyolefin layer of a composition comprising a blend of 90-99.7 wt % of a copolymer of propylene and at least one ?-olefin, and 0.3-10 wt % of a polyethylene having a density of 940 kg/m3 or less, adhered to a base layer comprising a propylene homopolymer or a copolymer of propylene and up to 5 w % of C2-C10 alpha-olefin units other than propylene. The laminate may optionally be metallised.

Abstract: Graft compositions, useful for tie-layer adhesives, are disclosed. The graft compositions comprise the reaction product of a live, grafted polyolefin and an olefin elastomer. The grafted polyolefin is first made by heating a polyolefin and an unsaturated monomer. Further reaction of the live, grafted polyolefin with an olefin elastomer provides the graft composition. Grafting efficiency is boosted dramatically by the presence of the olefin elastomer and use of the additional reaction step. The graft composition, when formulated into a tie-layer adhesive at low concentration, affords multilayer structures with good adhesion and high clarity.

Abstract: The present invention provides a multilayer heat shrinkable film incorporating an oxygen barrier material and layer containing a styrene polymer or blend of styrene polymers, where the shrinkage of the film in at least one of MD, TD is at least 30% at 90° C. The invention is further directed to a method of manufacturing a bag from said multilayer heat shrinkable film.

Abstract: A film for a backlight unit including a semiconductor nanocrystal-polymer composite film including a semiconductor nanocrystal and a matrix polymer in which the semiconductor nanocrystal is dispersed, wherein the matrix polymer is a polymer produced by a polymerization of a multifunctional photo-curable oligomer, a mono-functional photo-curable monomer, and a multifunctional photo-curable cross-linking agent, the multifunctional photo-curable oligomer has an acid value of less than or equal to about 0.1 mg of KOH/g, and a content (A1) of a first structural unit derived from the multifunctional photo-curable oligomer, a content (A2) of a second structural unit derived from the mono-functional photo-curable monomer, and a content (A3) of a third structural unit derived from the multifunctional photo-curable cross-linking agent satisfy Equation 1: A1<(A2+A3).

Abstract: Films especially suitable for the packaging of fresh foodstuff, like salad and vegetables, due to their valuable balance of high permeability to oxygen and optimal permeability to water vapour, comprising at least one layer A) and at least one layer B), wherein the layer A) comprises a copolymer of propylene with hexene-1 containing from 3 to 9% by weight of recurring units derived from hexene-1, said copolymer having a melting temperature from 125° C. to 143° C., and the layer B) comprises a polyolefin composition containing (all percentages being by weight): a) 10-40% of one or more propylene homopolymers or copolymers containing over 85% of propylene and having a fraction insoluble in xylene at room temperature greater than 80%; and b) 60-90 of one or more copolymers of ethylene with ?-olefin(s), containing ethylene in a quantity from 20 to 80%, and having solubility in xylene at room temperature greater than 70%.

Abstract: Multilayer films of the present disclosure may be connected to a photovoltaic component and laminated to a building surface. The multilayer film may include a compatibilizing layer made of a first material and a barrier layer made of second material and connected to a first external surface of the compatibilizing layer. In an embodiment, the first material, the second material, and the building material may all be different materials. The multilayer film may further include an adhesive layer for bonding with the building surface, and the compatibilizing layer may be disposed between the adhesive layer and the barrier layer.

Abstract: A multilayer light reflective self assembly film or coating which reflects light of a desired wavelength is obtained by blending block copolymer fractions of different molecular weight. The colour of light reflected by the film or coating depends on the relative amounts of the block copolymers in the blend. Thus, the colour of the reflected light is selectable by varying the relative amounts of the block copolymers in the blend. The polymers may be cross-linked by means of a suitable cross-linking agent. Applications of the film or coating include anti-counterfeiting devices.

Abstract: Disclosed is an electronic component packaging sheet including a surface conductive layer formed on the surface of at least one side of a substrate sheet. The substrate sheet includes 80,000 to 220,000 Mw of a styrene-conjugated diene block copolymer; 200,000 to 400,000 Mw of a polystyrene resin; and 150,000 to 210,000 Mw of an impact resistant polystyrene resin. The surface conductive layer includes an acrylic copolymer resin; and carbon nanotubes. The electronic component packaging sheet is a transparent conductive sheet having excellent thermoforming properties, good transparency after thermoforming, and sufficient electrostatic diffusion performance to maintain a low surface resistance value. The electronic component packaging sheet is particularly suited for the manufacture of embossed carrier tape.

Abstract: The present invention relates to a multilayer film for medical solution container and a container comprising the same, more particularly, to the multilayer film for medical solution comprising an outer layer comprising polypropylene, polypropylene copolymer or a mixture thereof; an intermediate layer comprising a mixture of 30˜70% by weight of propylene-based polymer including polypropylene, polypropylene copolymer or a mixture thereof, and 30˜70% by weight of a thermoplastic elastomer; and an inner layer comprising a mixture of 50˜70% by weight of propylene-based polymer including polypropylene, polypropylene copolymer or a mixture thereof, 5˜20% by weight of polyethylene, and 10˜45% by weight of a thermoplastic elastomer.

Abstract: A surface treatment for polymeric part adhesion and a treated part is provided. In one aspect, a method for adhesively securing a part to a polymeric substrate is provided comprising providing an adhesive layer having a bonding surface having a first oxygen composition, a part having a bondable surface, and a polymeric substrate having a mating surface. Spray from an air plasma device is directed onto at least a portion of the bonding surface of the adhesive to provide a second oxygen composition on the bonding surface of the adhesive layer, with the second oxygen composition being greater than the first oxygen composition. The adhesive layer is secured between the bondable surface of the part and the mating surface of the polymeric substrate.

Abstract: A laser-engravable composition comprises one or more EPDM elastomeric rubbers, at least one of which comprises at least 8 weight % polyene recurring units. This laser-engravable composition of elastomeric rubbers can be quickly crosslinked using sulfur-containing vulcanizing compositions to provide laser-engravable compositions and layers in flexographic printing plate precursors. These precursors can be laser-engraved to provide relief images for flexographic printing.

Abstract: An oriented monolayer or multilayer film, wherein the monolayer film comprises a copolymer (A1) of propylene with hexene-1 containing from 4 to 10% by weight of hexene-1 and having MFR from 0.5 to 10 g/10 min., and the multilayer film comprises at least 30% by weight of said copolymer (A1), both the monolayer and the multilayer film being obtainable with a process comprising a drawing step wherein the film is drawn with a draw ratio of at least 3, in at least one direction.

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: Disclosed is a surface conductive laminated sheet which comprises a base material layer containing an ABS resin as a main component, and a surface layer laminated on the surface of at least one side of the base material layer. In the laminated sheet, the ABS resin in the base material layer includes a composition made of 5-15 mass % of vinyl cyanide monomer, 45-65 mass % of diene-based rubber, and 50-20 mass % of aromatic vinyl monomer, and includes a graft rubber having a graft rate of 50-80%. The graft rubber has a mass average molecular weight (Mw) of a graft chain of 18,000-56,000, and/or has a volume average particle diameter of 0.3 to 2.0 ?m. By using the laminated sheet, it is possible to obtain an electronic part packaging container, such as carrier tape etc., which has extremely few punch burrs regardless of the type of forming apparatus when punched by means of a slit method or embossing.

Abstract: Disclosed in one aspect is an anti-skid sheet comprising at least one contact layer selected from the group consisting of dynamically vulcanized alloys, propylene-?-olefin copolymers, and blends thereof; and at least one substrate layer comprising polyethylene having a density of from greater than 0.935 g/cm3. In one embodiment, the dynamically vulcanized alloy comprises a blend of one or more polyolefins and an at least partially vulcanized rubber. Disclosed in another aspect is a method of forming the anti-skid sheet comprising providing a melt-blending extruder for each of the sheet layers, at least one substrate layer as disclosed herein and at least one contact layer as disclosed herein, and co-extruding a melt of each component to form a co-extruded sheet. In a particular embodiment, the anti-skid sheet is thermoformed to form an article.

Abstract: A multilayer barrier structure includes a plurality of relatively thin nanocomposite layers separated by one or more relatively thick intermediate layers selected from synthetic elastomers or non-elastomeric polymers. The composites exhibit remarkably long breakthrough and lag-times and are useful for packaging or protective apparel.

Abstract: Latent photoactivatable precatalysts are provided for metathesis polymerization and has the general formula (Ru(NHC)n(X1)m(L)0p+((X2)?)p. Wherein NHC is an N-heterocyclic carbene, n=1 or 2; X1 is a C1-C18 mono or polyhalogenized carbolic acid or trifluoromethane sulfate; X2 is a C1-C18 mono or polyhalogenized carbolic acid, trifluoromethane sulfate, tetrafluoroborate, hexafluorophosphate, or hexafluoroantimonate; m=0, 1, or 2 and L=a C4-C18 carbolic acid nitrile or a C4-C18 carbolic acid di or trinitrile; o=6?n?m or 5?n?m and p=2?m.

Abstract: A multilayer stretch film having a high slip surface and an aggressive cling surface for wrapping items or loads for ease of transport is disclosed. In one embodiment, there is disclosed a multilayer film comprises a first surface having a coefficient of friction at least less than about 0.9, comprising at least polypropylene and high-density polyethylene, a second surface having a cling force to the first surface at least greater than about 5 g/in, comprising at least a styrenic block copolymer, and a core layer, positioned between the first surface and the second surface, comprising at least linear low-density polyethylene or its blend.

Abstract: A coextruded annealed gas-barrier heat-shrinkable packaging film suitable for flowpack or tray-lidding applications comprises a core EVOH layer (A), first and second outer polyolefin layers (B) and (C), and at least one inner layer (D) of a copolymer of propylene with butene and optionally also with ethylene, and is characterized by a maximum shrink force in the transverse direction £ 0.35 N/cm and by a residual shrink force in the range 0.11 to 0.22 N/cm. The film is obtained by coextrusion, optional irradiation, orientation and annealing at a temperature of from 70 to 90° C.