Abstract: The present invention deals with a multilayer structure comprising a first polyethylene layer as a first external layer. The first polyethylene layer is oriented in at least machine direction. The structure also comprises a second polyethylene layer as a second external layer. It further comprises a layer made of a copolymer of ethylene and vinyl alcohol (EVOH) between the first external layer and the second external layer and a tie layer on each side of the EVOH layer. Furthermore, the tie layers comprise one or more copolymers of ethylene.

Abstract: Object: To provide a resin composition having excellent oxygen barrier properties and transparency, and high tensile elongation at break; a molded article, a film, and a multilayer film.

Abstract: A multi-layer film includes a skin layer and a seal layer. The multi-layer film may be used to form a package for a food product.

Abstract: Disclosed is a composition that comprises or is produced from a first ethylene ?-olefin copolymer, a modified first ethylene ?-olefin copolymer, and a second ethylene ?-olefin copolymer or propylene ?-olefin copolymer. Also disclosed is a multilayer film or sheet structure containing at least one barrier layer; at least one predominantly propylene-based layer, at least one predominantly ethylene-based layer, or both; and at least one adhesive layer produced from the composition. Further disclosed is a produced for producing a multilayer structure using the composition as adhesive layer.

Abstract: One aspect of the present invention resides in a hot melt adhesive including a thermoplastic polymer and a tackifier, wherein the tackifier includes an acid-modified tackifier that is modified by at least one of maleic acid and maleic anhydride, and by at least one selected from the group consisting of acrylic acid, methacrylic acid, an acrylic acid ester, and a methacrylic acid ester.

Abstract: The invention provides a composition comprising a first composition, comprising at least one ethylene-based polymer, and wherein the first composition comprises a MWCDI value greater than 0.9, and a melt index ratio I10/I2 that meets the following equation: I10/I2?7.0?1.2×log (I2). The invention also provides a process to form a composition comprising at least two ethylene-based polymers, said process comprising the following: polymerizing ethylene, and optionally at least one comonomer, in solution, in the presence of a catalyst system comprising a metal-ligand complex of Structure I, as described herein, to form a first ethylene-based polymer; and polymerizing ethylene, and optionally at least one comonomer, in the presence of a catalyst system comprising a Ziegler/Natta catalyst, to form a second ethylene-based polymer.

Abstract: The present invention provides a hot melt adhesive being highly environmentally-friendly, and as well having sufficient tackiness, adhesion, thermal stability and the like. The present invention relates to a hot melt adhesive comprising (A) a polar functional group-modified conjugated diene-based polymer, (B) an aliphatic polyester-based resin, and (C) a tackifier resin.

Abstract: This invention relates to a biaxially stretched product comprising a copolyamide comprising monomeric units of: aliphatic non-cyclic diamines X and aliphatic non-cyclic dicarboxylic acids Y or aliphatic non-cyclic ?,?-amino acids Z, and diamines M and diacids N in an amount between 0.1 to 2 wt % based on the total amount of copolyamide, and in which M and N are cyclic, and wherein the product has been stretched at a temperature of between the glass transition temperature (Tg) and the melting temperature (Tm). A method of preparation is claimed, as well as a multilayer film comprising the biaxially stretched product.

Abstract: The invention relates to a foil having at least one first layer (1) comprising at least 50% of random heterophasic polypropylene (block) copolymer. The invention further relates to labels and cover membranes comprising the foil.

Abstract: A radio-wave transparent cover is adapted to be arranged on a radio wave path of a radar device. The radio-wave transparent cover includes a transparent member, a decorative layer, a base, and a suppression member. The transparent member is formed of a first resin material. The decorative layer is formed on the rear surface of the transparent member. The base is formed of a second resin material and arranged behind the decorative layer. The suppression member is formed of a third resin material and molded in advance. The suppression member is arranged on the decorative layer to cover the rear surface of the decorative layer. The suppression member suppresses heat transfer to the transparent member when the base is insert-molded.

Abstract: Provided is an oriented-film-forming composition that can give a laminated body which has a substrate, an oriented film and an optically anisotropic film and which is excellent in heat resistance and light resistance. The oriented-film-forming composition is a composition including an oriented-film-forming material and an antioxidant. The antioxidant is preferably a phenolic antioxidant. The oriented-film-forming material preferably contains at least one selected from the group consisting of polyimides, polyamides and polyamic acids. The composition preferably satisfies Mw(A)/Mw(B)>0.85 wherein Mw(B) represents the weight-average molecular weight of the oriented-film-forming material after the composition is heated at 100° C. for 1 hour, and Mw(A) represents that of the same material before the heating.

Abstract: Described herein are multilayer polymeric films with enhanced interlayer adhesion, having a gas barrier layer and a seal layer bonded directly to the gas barrier layer, wherein the seal layer is made of a blended polymer material that may aid in increasing adhesion to the gas barrier layer. Also disclosed are converted multilayer films for use in creating inflatable chambers in fluid communication with other chambers, methods of making the multilayer films, and a method of producing inflatable and sealable films for protective packaging having enhanced performance.

Abstract: Decorative ionomeric surfaced film and sheet (e.g., multilayer co-extruded polymer) and articles made therefrom (e.g., automotive panels and parts) exhibiting good weatherability, mar resistance, and surface appearance of a high quality automotive finish (including color, haze, gloss, and DOI) and economical process for making (e.g., co-extrusion) and using (e.g., thermoforming and injection backfilling) the same.

Abstract: Provided is a rubber laminated resin composite comprising a polyamide-based resin molded product and rubber that is vulcanization bonded to the polyamide-based resin molded product; the polyamide-based resin molded product being molded from a polyamide-based resin that is blended with 0 to 70 wt. % of a filler based on the total amount of the filler and the polyamide-based resin, and that comprises an aliphatic amine compound having an amine equivalent of 950 or less in an amount of 0.045 mmol or more, preferably 0.050 to 2.0 mmol, more preferably 0.065 to 1.5 mmol, per g of the polyamide-based resin. The rubber laminated resin composite is produced by molding a polyamide-based resin that is blended or not blended with a filler, after the addition of an aliphatic amine compound thereto, and then vulcanization bonding of fluororubber or acrylic rubber to the obtained polyamide-based resin molded product.

Abstract: A coextrusion film according to a first embodiment of the invention has a monolithic elastic layer of a thermoplastic elastomer having an exposed outer face and an inner face and a support layer lying on, releasably joined to, and separable from the inner face at an interface.

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: The present invention provides a multilayer film having an active oxygen barrier multilayer core comprising at least one of 1) an active oxygen barrier layer is sandwiched between two passive oxygen barrier layers, or 2) a passive oxygen barrier layer is sandwiched between two active oxygen barrier layers. In one embodiment, the active barrier layer comprises a composition that is a blend of a thermoplastic resin (A) having carbon-carbon double bonds substantially in its main chain, a transition metal salt (B), and an oxygen barrier polymer (C). In some embodiments the active barrier layer may also include a compatibilizer (D). The passive oxygen barrier layers help to maintain the oxygen barrier properties of the multilayer film after the oxygen absorbing capacity of the active barrier layer has been exhausted. As a result, the useful shelf life of the film can be extended.

Abstract: Provided are multi-layer antithrombic coatings comprising an outermost layer of an antithrombic agent, such as a heparin conjugate, bound to a penultimate polymeric layer comprising cationic polymer species that is bound alternating polymeric layers comprising anionic polymer species and cationic polymer species, and uses thereof.

Abstract: A conductive fiber reinforced polymer composition may include a composite structure having a longitudinal axis, a lateral axis, and a through axis, the composite structure including a polymer matrix, a conductive filler incorporated into the polymer matrix, and a reinforcing material incorporated into the polymer matrix.

Abstract: Coextruded multilayer blown films are produced comprising: a core layer comprising at least one random polypropylene copolymer; at least one skin or intermediate layer adjacent to said core layer; wherein the coextruded multilayer film has at least about 30% higher machine direction tear, at least about 30% improved tear ratio (machine direction tear divided by transverse direction tear) and at least about 10% lower film haze, relative to a similar multilayer film comprising at least one impact polypropylene copolymer in the core layer.

Abstract: Multilayer polymer structure comprising at least one couple of adjacent layers (L1-L2), characterized in that: layer (L1) comprises at least one polymer composition (C1) comprising at least one semi-crystalline polyphthalamide and at least one impact modifier (I1), and layer (L2) comprises at least one polymer composition (C2) comprising at least one functionalized polyolefin (FPO2), said functionalized polyolefin comprising functional groups chosen from carboxylic groups, their esters, their anhydrides and their salts. Process for manufacturing said multilayer structure, which comprises co-extruding polymer compositions (C1) and (C2) so as to obtain couple of adjacent layers (L1-L2). Shaped article comprising the invented multilayer structure and process for manufacturing the shaped article.

Abstract: The present disclosure relates to a laminate comprising: an outer polyethylene layer comprises at least 10% on the weight of polyethylene, a UV radiation blocking agent or a chromophore; a barrier layer with at least 15%-50% of an aromatic polyamide; and a polyethylene sealant layer. The Ultra Violet radiation resistant laminate is an opaque laminate or a transparent laminate. The outer polyethylene layer and the barrier layer with at least one aromatic polyamide is a multilayer film, preferably three layer film. The present disclosure also relates to a process for the preparation of the laminate.

Abstract: A laminated body of rubber layers includes: a resin layer formed from a polyester resin or a polyamide resin; a rubber layer formed from a rubber composition containing a diene rubber; and an adhesive layer disposed between the resin layer and the rubber layer. The adhesive rubber composition contains a modified rubber composition (A) or a modified rubber composition (B) both having a number average molecular weight of 70,000 to 110,000. The modified rubber composition (A) is formed from a modified butyl rubber (1) formed by reacting, with a butyl rubber, a compound having in a molecule a nitroxide free radical that is stable at ambient temperature in the presence of oxygen, a radical initiator, and a co-crosslinking agent. The modified rubber composition (B) is formed by compounding the co-crosslinking agent with a modified butyl rubber (2) formed by reacting the compound and the radical initiator with the butyl rubber.

Abstract: A laminate body includes a base material, a film-like or a membrane-like undercoat layer that is formed in at least a portion of the outer surface of the base material, and an atomic layer deposition film that is formed on a surface opposite to a surface coming into contact with the base material among both surfaces of the undercoat layer in the thickness direction thereof. At least a portion of precursors of the atomic layer deposition film bind to the undercoat layer, and the atomic layer deposition film is formed into a membrane shape covering the undercoat layer.

Abstract: A material that is capable of stopping high-speed projectiles but yet is sufficiently flexible for use in various applications, such as to be used in footwear to protect a person's feet, especially the bottoms thereof is achieved by an enhanced ballistic material formed from interleaving layers of a ballistic material and layers of a gel matrix material that remains relatively soft and flexible. The ballistic material layer may be high tensile strength synthetic or polymeric fibers that are arranged in a mesh weave. Preferably the gel matrix material is capable of investing the ballistic material, e.g., by having the gel matrix material fill the interstices of the fibers, which may be achieved through the use of heat and/or pressure. Furthermore, the combined material, i.e., the enhanced ballistic material, may be shaped, e.g., by molding.

Abstract: The present disclosure relates to a multilayered film comprising: an outer polyethylene layer; a core layer comprising 40% to 49% (w/w) of polypropylene homopolymer, 51% to 55% (w/w) of LLDPE, and 0% to 5% (w/w) of at least one additive; and an inner polyethylene layer. The multilayered film of the present disclosure exhibits good mechanical strength with lower thickness. The present disclosure also relates to a laminate comprising: an outer printing layer; a middle barrier layer; and an inner sealant layer; wherein at least one of the outer printing layer or the inner sealant layer is made up of a multilayered film comprising: an outer polyethylene layer; a core layer comprising 40% to 49% (w/w) of polypropylene homopolymer, 51% to 55% (w/w) of LLDPE, and 0% to 5% (w/w) of at least one additive; and an inner polyethylene layer. The present disclosure further relates to a laminated tube.

Abstract: The presently disclosed subject matter is directed to a polymeric films suitable for use in a wide variety of applications, including (but not limited to) the formation of bioprocessing containers. Particularly, the disclosed films comprise a first barrier layer comprising polyglycolic acid, polyamide, EVOH, and/or an EVOH blend and a second barrier layer comprising EVOH. The dual barrier layers of the film maintain a high gas barrier under a variety of relative humidity conditions. In addition, the disclosed film is biologically inert and free from film surface-modifying additives such that the film does not inhibit the growth of biological cell cultures.

Abstract: The present disclosure relates to a dual barrier laminate structure, particularly suitable for aggressive or moisture containing products. The present disclosure also relates to a plastic based laminate (PBL) or an aluminum based laminate (ABL) comprising the said dual barrier laminate.

Abstract: Disclosed is a multilayer film. The multilayer film has the general structure of A/B/A/C or B/A/B/C, wherein A is a nucleated high density polyethylene (HDPE) layer, B is a single or multilayer structure, and C is a seal layer. Adding a nucleating agent to HDPE improves the water vapor barrier property of the HDPE layer and the multilayer film, but it also causes the multilayer film to curl in the conventional multilayer film structures. The invention provides a multilayer film, which includes at least one layer of nucleated HDPE, with reduced or eliminated curling while retaining high water vapor barrier.

Abstract: A coextruded multilayer structure which can be oriented and a process therefor are disclosed in which the structure comprises a poly(hydroxyalkanoic acid) polymer (PHA) composition layer, a tie layer, and a sealant layer and the process comprises, consists essentially of, or consists of coextruding a PHA composition, a tie layer composition, and a sealant layer composition to produce a tubular multiplayer structure; cooling the multilayer film structure in a first bubble to produce a tubular multilayer structure; orienting the tubular multilayer structure under heating in a second bubble to produce an oriented tubular multilayer structure; and relaxing the oriented tubular multilayer structure under heating in a third bubble. The structure can be used to produce an article such as a packaging article.

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: A tie layer adhesive composition for multilayer structures made up of graft composition compounded with a base resin, such as linear low density polyethylene (LLDPE), and a polyethylene having long chain branching, such as low density polyethylene (LDPE), and optionally one or more additives. The graft composition can be made up of a blend of a grafted polyolefin and an olefin elastomer and/or the reaction product of a live, grafted polyolefin and an olefin elastomer.

Abstract: At least one embodiment provides a multilayered foil (100) having a first outer layer (10) and a second outer layer (30), which each comprise homo polypropylene. A central layer (20) is disposed between the first outer layer (10) and the second outer layer (30) and contains more than 25 wt % of homo polyamide and comprises copolyamide. The first outer layer (10) comprises microspheres (50).

Abstract: An oriented multilayer structure for shrink applications having a polymeric layer, a tie layer adhered to said polymeric layer. The tie layer is made up of the reaction product of a live, grafted polyolefin and an olefin elastomer. The multilayer structure is oriented and the tie layer provides strong adhesion to barrier layers even at high orientation levels.

Abstract: There is provided an adhesive resin composition suitable for a multilayer structure which retains sufficient adhesive strength even when in contact with gasoline or light gas oil, and has excellent long-term durability and durability in high-temperature fuels and excellent adhesive strength at high temperature. The adhesive resin composition of the invention includes a modified ethylene polymer (Al) which is graft-modified with an unsaturated carboxylic acid or a derivative thereof and which has a density of 930 to 980 kg/m3, and an unmodified ethylene polymer (A2) having a density of 910 to 929 kg/m3, wherein the adhesive resin composition has a melt flow rate (MFR) [ASTM 0 1238 (temperature: 190° C., 2160 g load)] of 0.1 to 3 g/10 min and a density of 920 to 930 kg/m3 and has an elution amount of 60 wt % or less at 85° C. or lower as determined by cross-fractionation chromatography. The present invention also relates to a multilayer structure formed by using the adhesion resin composition.

Abstract: An encapsulant for a photovoltaic module, intended to coat a photovoltaic cell, including at least two adjacent thermoplastic layers forming a core-skin assembly, wherein the skin layer consists of a polyamide-grafted polymer including a polyolefin backbone, representing from 50% to 95% by weight of the polyamide-grafted polymer, containing a residue of at least one unsaturated monomer (X) and at least one polyamide graft, representing from 5% to 50% by weight of polyamide-grafted polymer, the core layer including a polyethylene chosen from a homopolymer of ethylene or a copolymer including at least 50 mol % of ethylene and one or more comonomers. Also, a photovoltaic module incorporating such an encapsulant.

Abstract: A packaging material for blood bags includes a laminate film, wherein the laminate film includes a base layer, an inorganic deposited layer formed on top of the base layer, a layer containing a polymer of an unsaturated carboxylic acid compound polyvalent metal salt formed on top of the inorganic deposited layer, and a layer containing a polymer of an unsaturated carboxylic acid compound polyvalent metal salt and a vinyl alcohol based polymer formed on top of the layer, laminating at least two laminate films with the layers on the inside to form a laminate film, and laminating a heat seal layer on top of at least either one of the base layers of the laminate film. The packaging material can exhibit relatively high water vapor permeation resistance and excellent transparency and stability.

Abstract: Described is a multi-layered film comprising a core layer comprising polypropylene; a metalizable skin layer such as a treated HDPE or PETG; and a first tie layer comprising a functionalized polypropylene such as an acid-grafted isotactic polypropylene between the core layer and metalizable skin layer; wherein the metalizable skin layer comprises a polymer having a surface energy (ASTM D2578) of at least 30 dynes/cm, a Young's Modulus (ASTM D790) of at least 1500 MPa, and a melting point (ASTM D3418) of at least 130° C.; and wherein the film as measured on the metalizable skin side has a Haze of less than 1000 Haze Units, and a Gloss of greater than 300 Gloss Units.

Abstract: The presently disclosed subject matter is directed to a polymeric films suitable for use in a wide variety of applications, including (but not limited to) the formation of bioprocessing containers. Particularly, the disclosed films comprise a first barrier layer comprising polyglycolic acid, polyamide, EVOH, and/or an EVOH blend and a second barrier layer comprising EVOH. The dual barrier layers of the film maintain a high gas barrier under a variety of relative humidity conditions. In addition, the disclosed film is biologically inert and free from film surface-modifying additives such that the film does not inhibit the growth of biological cell cultures.

Abstract: The present invention relates generally to optical retardation films. The invention may be used as optical element in liquid crystal display (LCD) devices, particularly as phase-shifting component of LCDs of both reflection and transmission type, and in ant other field of science and technology where optical retardation films are applied such as architecture, automobile industry, decoration arts. The present invention provides an optical film comprising a substrate having front and rear surfaces, and at least one solid optical retardation layer on the front surface of the substrate. The solid optical retardation layer comprises organic rigid rod-like macromolecules based on 2,2?-disulfo-4,4?-benzidine terephthalamide-isophthalamide copolymer or its salt of the general structural formula I. The solid optical retardation layer is a negative C-type or Ac-type plate substantially transparent to electromagnetic radiation in the visible spectral range.

Abstract: The invention provides a film comprising at least two layers, Layer A and Layer B, and wherein Layer A is formed from a Composition A comprising the following: i) an olefin-based polymer, ii) at least one polyalkylene-oxide selected from the group consisting of the following: a) EOxPOyEOz, where x is from 1 to 50; y is from 1 to 100; and z is from 1 to 50; b) POxEOy. POz, where x is from 1 to 100; y is from 1 to 50; and z is from 1 to 100; c) EOxPOy, where x is from 1 to 50; and y is from 1 to 100; and d) combinations thereof; and wherein the Layer B is formed from Composition B comprising an olefin-based polymer. The invention also provides a laminated film comprising a film and a substrate, and wherein the film comprises at least one Layer A formed from a Composition A and wherein the substrate comprises a polyester, a polyamide, an olefin-based polymer, or a combination thereof.

Abstract: The present invention provides a laminate having an environmental cracking resistance for a fuel and a fuel impermeability and, in addition, higher in productivity. The present invention is a laminate including a chlorotrifluoroethylene copolymer layer (C) and a fluorine-free organic material layer (K), wherein the chlorotrifluoroethylene copolymer has a melt flow rate of 15.0 to 40.0 (g/10 minutes) and contains 15.0 to 25.0 mole percent of chlorotrifluoroethylene units relative to all monomer units.

Abstract: Disclosed is a laminar shaped article comprising a heterogeneous blend of (a) a composition comprising a vinyl halide or vinylidene halide polymer and optionally an ethylene copolymer containing carboxyl and/or carbon monoxide moieties, and (b) a polyolefin functionalized with a comonomer selected from the group consisting of maleic anhydride, maleic acid diesters, maleic acid monoesters, itaconic anhydride, itaconic acid diesters, itaconic acid monoesters, fumaric acid diesters, fumaric acid monoesters, or combinations thereof as a compatibilizer; and (c) a polyamide wherein the polyamide is present in the vinyl halide or vinylidene halide polymer as a multitude of overlapping layers.

Abstract: A polymeric sheet structure for use in a packaging container. The sheet contains a first layer of oxygen barrier material and a second and optionally third protective layer bonded to the first layer. The oxygen barrier layer material can be saponified ethylene-vinyl acetate copolymer, polyamide, polyvinyl alcohol, modification products thereof, or mixtures thereof, and the second and third protective layer can contain a polymer and an inorganic filler with an aspect ratio distribution in an amount sufficient to further enhance the moisture barrier property of the outer protective layer over what it would be in the absence of the filler. Also a process for protecting an oxygen or moisture sensitive material that includes the step of enclosing the material in a container that is completely or partially constructed of the sheet structure.

Abstract: An adhesive resin composition, including: a base resin which comprises (A) 30-90 parts by weight of a modified ethylene-olefin copolymer, and (B) 70-10 parts by weight of a styrene thermoplastic elastomer, provided that (A)+(B) equals 100 parts by weight; and (C) a tackifier in an amount of 30-60 parts by weight per 100 parts by weight of the base resin, the modified ethylene-olefin copolymer being one which has been graft-modified with (a) an unsaturated carboxylic acid or a derivative thereof and (b) an aromatic vinyl monomer, comprises 0.1%-5% by weight of (a) the unsaturated carboxylic acid or the derivative thereof, and has a melting point peak in a range of 100-150° C. with an enthalpy of crystal fusion of 0.5-10 J/g as determined by DSC.

Abstract: Multilayer films of polyamide and polypropylene which have good layer adhesion and are suitable for a back cover of a solar module are provided. In a first embodiment, the multilayer film contains in the order listed: a) a layer containing at least 35% by weight, of polyamide; c) a layer containing at least 35% by weight of a polypropylene; and e) a layer containing at least 35% by weight, of polyamide; wherein the layer c) further comprises a polypropylene having acid anhydride groups or a polypropylene compatible functionalized polyolefin having functional groups to adhere the layer c) to each of layers a) and e). In a second embodiment adhesion promoter layers are present between the respective polyamide and polypropylene layers.

Abstract: Disclosed herein are coating solutions comprising a reactive monomer, process and compositions for preparing the same that are suitable for a coating and/or reactive coating. More particularly, the present invention relates to monomers comprising a multifunctional N-vinylformamide crosslinking moiety and their use in coatings. Also disclosed are applications and compositions comprising coating solutions of a reactive monomer and its application in printing processes and inks.

Abstract: A laminate and a process for making it are disclosed. The laminate comprises a metal substrate and a polymer layer that adheres to at least one plasma-treated surface of the metal substrate. The polymer layer comprises a blend of a first polyolefin and a grafted polyolefin. The laminate can be prepared by plasma-treating at least one surface of a metal substrate and extruding onto the plasma-treated surface a polymer layer comprising a blend of a first polyolefin and a grafted polyolefin.

Abstract: An object of the present invention is to provide a multilayer film and a package body of which the thickness can be reduced than that of a conventional multilayer film, by having a good impact resistance, flex resistance, and anti-pinhole property. A multilayer film 100 according to the present invention includes a repeatedly laminated part 130. The repeatedly laminated part 130 is formed by alternately and repeatedly laminating a first layer 131 and a second layer 132. The first layer 131 consists mainly of a polyamide resin (excluding elastomers). The second layer 132 consists mainly of a copolymer of an olefin-based hydrocarbon having carbon number of 2 to 4 and a vinyl group-containing monomer.

Abstract: A tie layer adhesive composition for multilayer structures made up of graft composition compounded with a base resin, such as linear low density polyethylene (LLDPE), and a polyethylene having long chain branching, such as low density polyethylene (LDPE), and optionally one or more additives. The graft composition can be made up of a blend of a grafted polyolefin and an olefin elastomer and/or the reaction product of a live, grafted polyolefin and an olefin elastomer.