Heat-shrinkable polymeric films

The present invention relates to oriented or hot-blown shrink films which may be manufactured from by a number of processes. The oriented films may be manufactured by double bubble, LISIM, tape bubble, trapped bubble or tenter framing processes. The films of the present invention are useful as a shrink film to package and label a variety of products. The films exhibit a high degree of MD shrinkage in a very controlled and consistent manner while providing a number of other positive characteristics such as optical clarity, puncture and abrasion resistance, controlled gauge, and superior web winding and handling characteristics. The shrink control layers of the films of the present invention contain a modifier component selected from plastomers and/or metallocene catalyzed ethylene-propylene copolymers and blends thereof.

Thermoplastic Film Structures With A Low Melting Point Outer Layer

A film structure including at least a base layer containing a thermoplastic polymer and at least an outer layer containing a low melting point polymer. Methods of manufacturing the film structure, including the steps of coextruding melts corresponding to the individual layers of the film structure through a die and thereafter: simultaneously biaxially stretching the coextruded film sheet; or sequentially biaxially stretching the coextruded film sheet, wherein the machine-direction orientation (MDO) is performed with a radiant-heated MDO stretcher. An extrusion-coated film structure exhibiting strong bond adhesion, and a method of manufacturing the same are also provided.

Multilayer Shrink Films, Labels Made Therefrom and Use Thereof

A multilayer heat shrink film including a core layer including one or more alpha-olefin polymer and at least one skin layer including one or more cyclic olefin copolymers (COC), process for its preparation and uses thereof. 117-. (canceled)18. A method of making a film comprising:co-extruding a core layer comprising: (i) at least from 60 to 98 wt. % of at least one polymer selected from a group consisting of propylene-based elastomers, ethylene plastomers, metallocene-catalyzed linear low density polyethylenes, and blends thereof, and (ii) from 40 to 2 wt. % of at least one α-olefin polymer having a melting point higher than the at least one polymer; and at least one skin layer comprising a cyclic olefin polymer (COC).19. The method of claim 18 , further comprising orienting the film in a machine direction.20. The method of claim 18 , further comprising biaxially orienting the film.21. The method of claim 18 , further comprising orienting the film in a transverse direction.22. The method of claim 18 , further comprising biaxially orienting using a simultaneously stretching process.23. The method of claim 18 , wherein the co-extruding comprises through a cast die.24. The method of claim 18 , wherein the co-extruding comprises through an annular die.25. The method of claim 18 , further comprising introducing additives to the core layer.26. The method of claim 18 , further comprising adding one or more film forming polymer resins in the at least one skin layer and in an amount less than the COC.27. The method of claim 26 , wherein the one or more film forming polymer resins have melting points at temperatures within a range of equal to lower than a melting point of the COC.28. The method of claim 26 , wherein the one or more film forming polymer resins have melting points at temperatures higher than a melting point of the COC.29. The method of claim 18 , further comprising introducing additives to the at least one skin layers.30. The method of claim 18 , further ...

Multilayer Polymeric Film

Provided is a film including: (a) an intermediate layer comprising a polymer and an antistatic agent, said intermediate layer having a first side and a second side; (b) a first layer including a polymer, said first layer being on the first side and is printed or printable; and (c) a second layer including a polymer and a non-migratory slip agent, said second layer being on the second side, wherein the film has at least one of (i) a thickness of at least about 30 μm, (ii) a static coefficient of friction of about 0.15 to less than 0.30, and (iii) a kinetic coefficient of friction of about 0.15 to less than 0.30. Also provided are a method for producing such a film, and labels such as cut and stack labels comprising the film. 1. A film comprising:(a) an intermediate layer comprising a polymer and an antistatic agent, said intermediate layer having a first side and a second side;(b) a first layer comprising a polymer, said first layer being on the first side and is printed or printable; and(c) a second layer comprising a polymer and a non-migratory silicon gum slip agent, said second layer being on the second side and being untreated,wherein the film has at least one of (i) a thickness of at least about 30 μm, (ii) a static coefficient of friction (I/O) of about 0.15 to less than 0.30, and (iii) a kinetic coefficient of friction (I/O) of about 0.15 to less than 0.30.2. The film of in the form of a sheet suitable for feeding to a cut-and-stack labeling equipment.3. The film of having a static and/or kinetic coefficient of friction (I/O) of about 0.15 to less than 0.30.4. The film of having a static and/or kinetic coefficient of friction (I/O) of about 0.17 to about 0.25.5. The film of having a thickness of at least about 30 μm claim 1 , a static coefficient of friction of about 0.15 to less than 0.30 claim 1 , and a kinetic coefficient of friction of about 0.15 to less than 0.30.6. The film of having a stiffness of at least about 10 Gurley in MD.7. The film of having a ...

Sealable packaging structures and applications related thereto

Heat-sealable, multi-layer composite packaging structures that are suitable for packaging and having improved sealing properties and simplified construction as compared to prior art composite film constructions are disclosed. The inventive film structure includes a first substrate, such as paper, bonded such as by extrusion lamination, to a sealable, high-barrier film. This inventive “paper-adhesive-polymer” lamination may replace prior art “paper-adhesive-foil-adhesive” foil-based tandem laminations. An improved or comparable polymer film substrate may replace the “foil-adhesive” layer components of the popular incumbent prior art structure.

Porous polyethylene film with an ink jet printed surface

A film with an ink jet printed surface is provided. The film is biaxially stretched and includes a surface layer of high density polyethylene (HDPE) and particles of an incompatible material. This surface layer has a meshed network of HDPE fibers and striations of layers coplanar with the plane of the film. This surface layer is porous in a direction perpendicular to the plane of the film and has a void content of at least about 20%. The surface layer is provided with a coating of a porous ink receiving layer.

Thermoplastic Film Structures with a Low Melting Point Outer Layer

A film structure including at least a base layer containing a thermoplastic polymer and at least an outer layer containing a low melting point polymer. Methods of manufacturing the film structure, including the steps of coextruding melts corresponding to the individual layers of the film structure through a die and thereafter: simultaneously biaxially stretching the coextruded film sheet; or sequentially biaxially stretching the coextruded film sheet, wherein the machine-direction orientation (MDO) is performed with a radiant-heated MDO stretcher. An extrusion-coated film structure exhibiting strong bond adhesion, and a method of manufacturing the same are also provided.

Co-extruded, biaxially oriented, matte, HDPE films

Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising, consisting essentially of, or consisting of low-density polyethylene, optionally linear, and at least about 80 wt. % of high-density polyethylene, as well as a second skin layer comprising either: (i) one or more low-density polyethylenes, any or all of them optionally being linear; or (ii) one or more polypropylene-based copolymers. The multilayer film may be oriented in at least one direction.

Heat-shrinkable polymeric films

The present invention relates to oriented or hot-blown shrink films which may be manufactured from by a number of processes. The oriented films may be manufactured by double bubble, LISIM, tape bubble, trapped bubble or tenter framing processes. The films of the present invention are useful as a shrink film to package and label a variety of products. The films exhibit a high degree of MD shrinkage in a very controlled and consistent manner while providing a number of other positive characteristics such as optical clarity, puncture and abrasion resistance, controlled gauge, and superior web winding and handling characteristics. The shrink control layers of the films of the present invention contain a modifier component selected from plastomers and/or metallocene catalyzed ethylene-propylene copolymers and blends thereof.

Multilayer Shrink Films, Labels Made Therefrom and Use Thereof

A multilayer heat shrink film including a core layer having an alpha-olefin polymer and at least one skin layer having a cyclic olefin copolymer (COC), process for its preparation and uses thereof.

Multi-Layer Films and Articles Made Therefrom

Multi-layer films particularly suited for packaging applications, including a core layer, a tie layer made from at least 10 wt % of a first polymer and where the first polymer preferably is not present in the core layer are provided. Optionally, the multi-layer film may have a skin layer, a second tie layer and/or a second skin layer. Embodiments may have the advantage of improved seal strength, hermeticity, hot tack and reduced-temperature sealability. 1. A multi-layer film , comprising:a) a core layer;{'sup': 3', '3, 'b) a tie layer, said tie layer having at least 10 wt % of a first polymer comprising from about 75 wt % to about 96 wt % propylene and from about 4 wt % to about 25 wt % ethylene, said first polymer having a density in the range of 0.850 g/cmto 0.900 g/cm; and'}c) a skin layer,said tie layer being intermediate said core layer and said skin layer.2. The film of claim 1 , wherein the core layer comprises at least one polymer selected from the group consisting of propylene polymer claim 1 , ethylene polymer claim 1 , isotactic polypropylene (iPP) claim 1 , high crystallinity polypropylene (HCPP) claim 1 , ethylene-propylene (EP) copolymers claim 1 , and combinations thereof.3. The film of claim 1 , wherein said core layer is substantially free of said first polymer.4. The film of claim 1 , wherein said first polymer comprises from about 80 wt % to about 95 wt % propylene and from about 5 wt % to about 20 wt % ethylene claim 1 , and said first polymer has a DSC melting point below 100° C.5. The film of claim 1 , wherein said first polymer comprises from about 84 wt % to about 94 wt % propylene and from about 6 wt % to about 16 wt % ethylene.6. The film of claim 1 , wherein said first polymer comprises from about 85 wt % to about 92 wt % propylene and from about 8 wt % to about 15 wt % ethylene.7. The film of claim 1 , wherein said core layer substantially comprises isotactic polypropylene.8. The film of claim 1 , wherein said first polymer has a ...

Thermoplastic film structures with a low melting point outer layer

A film structure including at least a base layer containing a thermoplastic polymer and at least an outer layer containing a low melting point polymer. Methods of manufacturing the film structure, including the steps of coextruding melts corresponding to the individual layers of the film structure through a die and thereafter: simultaneously biaxially stretching the coextruded film sheet; or sequentially biaxially stretching the coextruded film sheet, wherein the machine-direction orientation (MDO) is performed with a radiant-heated MDO stretcher. An extrusion-coated film structure exhibiting strong bond adhesion, and a method of manufacturing the same are also provided.

Sealable packaging structures and applications related thereto

Heat-sealable, multi-layer composite packaging structures that are suitable for packaging and having improved sealing properties and simplified construction as compared to prior art composite film constructions are disclosed. The inventive film structure includes a first substrate, such as paper, bonded such as by extrusion lamination, to a sealable, high-barrier film. This inventive “paper-adhesive-polymer” lamination may replace prior art “paper-adhesive-foil-adhesive” foil-based tandem laminations. An improved or comparable polymer film substrate may replace the “foil-adhesive” layer components of the popular incumbent prior art structure.

Antistatic Films and Methods To Manufacture The Same

In embodiments herein, the invention relates to a multilayer printable polymeric film including: (a) at least one layer A including one or more polyolefins and having a first side and a second side; (b) a layer B including one or more polyolefins and having a first side and a second side, where the first side of layer B is located on the second side of layer A; and (c) a printable coating located on the first side of layer A; wherein at least one of layer A or B comprises 0.01 to 50.0 wt. % of at least one polyether-polyolefin block copolymer, based on the weight of the polymers comprising the layer; and wherein the multilayer printable polymeric film has a kinetic coefficient of friction less than 0.65; and a surface tension of greater than about 35 mN/m; on one or both sides of the film. 1. A multilayer printable polymeric film comprising:(a) at least one layer A, comprising one or more polyolefins, having a first side and a second side;(b) a layer B, comprising one or more polyolefins, having a first side and a second side, where the first side of B is located on the second side of layer A; and(c) a printable coating located on the first side of layer A;wherein at least one of layer A or B comprises 0.01 to 50.0 wt. % of at least one polyether-polyolefin block copolymer, based on the weight of the polymers comprising the layer; andwherein the multilayer printable polymeric film has a kinetic coefficient of friction less than about 0.65 and a surface tension of greater than about 35 mN/m on one or both sides of the film.2. The multilayer printable polymeric film of claim 1 , wherein the polyether-polyolefin block copolymer is a non-migratory antistatic agent.3. The multilayer printable polymeric film of claim 1 , wherein the polyether-polyolefin block copolymer is provided as a blend of:(i) 5.0 to 50.0 wt. % of at least one polyether-polyolefin block copolymer;(ii) 50 to 95.0 wt. % of at least one propylene-based polymer; based on the combined weights of (i) and ( ...

Multilayer shrink films, labels made therefrom and use thereof

A multilayer heat shrink film including a core layer having an alpha-olefin polymer and at least one skin layer having a cyclic olefin copolymer (COC), process for its preparation and uses thereof.

Multilayer Shrink Films, Labels Made Therefrom and Use Thereof

A multilayer heat shrink film including a core layer including one or more alpha-olefin polymer and at least one skin layer including one or more cyclic olefin copolymers (COC), process for its preparation and uses thereof.

Multilayer shrink films, labels made therefrom and use thereof

A multilayer heat shrink film including a core layer including one or more alpha-olefin polymer and at least one skin layer including one or more cyclic olefin copolymers (COC), process for its preparation and uses thereof.

Matte surface film

A multi-layered polymeric film comprising a core layer comprising a polyolefin, and a first skin layer comprising a low melting point polyolefin and a matte producing agent, and a method for producing same.

Sealable packaging structures and applications related thereto

Heat-sealable, multi-layer composite packaging structures that are suitable for packaging and having improved sealing properties and simplified construction as compared to prior art composite film constructions are disclosed. The inventive film structure includes a first substrate, such as paper, bonded such as by extrusion lamination, to a sealable, high-barrier film. This inventive “paper-adhesive-polymer” lamination may replace prior art “paper-adhesive-foil-adhesive” foil-based tandem laminations. An improved or comparable polymer film substrate may replace the “foil-adhesive” layer components of the popular incumbent prior art structure.

Uniaxially Shrinkable, Biaxially Oriented Polypropylene Films

Provided is a polypropylene film, and a method of making the film, the film comprising at least one core layer sandwiched between at least two skin layers, the layers comprising a core layer comprising polypropylene and within the range of from 20 wt % to 50 wt %, by weight of the materials in the core layer, of a propylene-α-olefin elastomer having within the range of from 5 wt % to 25 wt % α-olefin derived units, by weight of the copolymer; and skin layers comprising one or more polymers having a melting point within the range of from 125° C. to 160° C., a Shore D Hardness within the range of from 55 to 70, and a Flexural Modulus of at least 600 MPa; wherein the film has a Haze value of less than 10%, the film being biaxially oriented but shrinkable substantially only in the MD. 1. A film comprising at least one core layer sandwiched between at least two skin layers , the layers comprising:(i) a core layer comprising polypropylene and within the range of from 20 wt % to 50 wt %, by weight of the materials in the core layer, of a propylene-α-olefin elastomer having within the range of from 5 wt % to 25 wt % α-olefin derived units, by weight of the copolymer; and(ii) skin layers comprising one or more polymers having a melting point within the range of from 125° C. to 160° C., a Shore D Hardness within the range of from 55 to 70, and a Flexural Modulus (ISO 178) of at least 500 MPa;wherein the film has a Haze value of less than 10%, andwherein the MD dimensional stability value is less than −10% (15 sec at 135° C.), and a TD dimensional stability value within the range of from −2% to 8% (15 sec at 135° C.).2. The film of claim 1 , wherein the polypropylene has a Vicat softening temperature (ISO 306 claim 1 , or ASTM D 1525) of greater than 100° C.; and the propylene-α-olefin elastomer has a Vicat softening temperature of less than 120° C.3. The film of claim 1 , wherein the Vicat softening temperature of the polypropylene is at least 5° C. higher than the Vicat ...

Metallized multi-layer films, methods of manufacture and articles made therefrom

Multi-layer films particularly suited for packaging applications, including a core layer, a seal layer located on one side of the core layer, the seal layer comprising a polyolefin polymer and a silicone gum and a metallized layer located on the opposite side of the core layer from the seal layer are provided. Optionally, the multi-layer film may have a first tie layer located intermediate the core layer and the seal layer and/or a second tie layer located intermediate the core layer and the metallized layer. Embodiments may have the desirable combination of improved metal adhesion and slip properties.

Multi-layer oriented heat sealable film structure of improved machinability

A heat-sealable multilayer film comprising: (a) an upper heat-sealable layer comprising (I) an ethylene polymer, copolymer, or terpolymer and (ii) a particulate, crosslinked hydrocarbyl-substituted polysiloxane having a mean particle size of from about 0.5 μm to about 20.0 μm, as a combined slip agent and antiblocking agent; (b) an intermediate core layer comprising a propylene polymer; and (c) a lower heat-sealable layer consisting essentially of (I) an ethylene polymer, copolymer, or terpolymer, (ii) a particulate, crosslinked hydrocarbyl-substituted polysiloxane having a mean particle size of from about 0.5 μm to about 20.0 μm, as a combined slip agent and antiblocking agent; and (iii) from about 0.15 wt% to about 1.5 wt% of a liquid, hydrocarbyl-substituted polysiloxane. The upper heat-sealable sealable layer does not contain a liquid polysiloxane, but may have a coating of liquid polysiloxane transferred from the lower heat-sealable layer.

Transparent, coated, shrinkable, oriented polypropylene film

A transparent, coated, heat-shrinkable film having controlled shrinkability which includes a biaxially oriented substrate having a polypropylene blend core layer and a water based coating. The shrink during the application on packaging machines is achieved through the balanced MD-TD (machine direction and transverse direction) film retraction in and near the sealed areas. The substrate can also include outer layers of a propylene-ethylene-butylene terpolymer disposed on either side of the polypropylene core layer or on either side of additional intermediate layers that may be disposed between the outer layers and the core layer. The invention also includes a process for making this coated heat-shrinkable film. The coated film is formed under controlled temperature and tension conditions to produce a packaging film having shrinkage within a controlled shrinkability range.

Multi-layer films, methods of manufacture and articles made therefrom

Multi-layer films particularly suited for packaging applications, including a core layer, a tie layer made from at least 10 wt % of a first polymer and where the first polymer preferably is not present in the core layer are provided. Optionally, the multi-layer film may have a skin layer, a second tie layer and/or a second skin layer. Embodiments may have the advantage of improved seal strength, hermeticity, hot tack and reduced-temperature sealability.

Antistatic films and methods to manufacture the same

In embodiments herein, the invention relates to a multilayer printable polymeric film including: (a) at least one layer A including one or more polyolefins and having a first side and a second side; (b) a layer B including one or more polyolefins and having a first side and a second side, where the first side of layer B is located on the second side of layer A; and (c) a printable coating located on the first side of layer A; wherein at least one of layer A or B comprises 0.01 to 50.0 wt. % of at least one polyether-polyolefin block copolymer, based on the weight of the polymers comprising the layer; and wherein the multilayer printable polymeric film has a kinetic coefficient of friction less than 0.65; and a surface tension of greater than about 35 mN/m; on one or both sides of the film.

Porous biaxially oriented high density polyethylene film with hydrophilic properties

The present invention relates to a biaxially oriented film having a water wettable surface, the film containing a water wettable porous high density polyethylene (HDPE) surface layer. The water wettable surface layer contains porous HDPE and a silicone glycol coating impregnated in the pore of the HDPE surface layer. The biaxially oriented water wettable film is useful for ink jet printing.

Uniaxially shrinkable, biaxially oriented polypropylene films

Provided is a polypropylene film, and a method of making the film, the film comprising at least one core layer sandwiched between at least two skin layers, the layers comprising a core layer comprising polypropylene and within the range of from 20 wt % to 50 wt %, by weight of the materials in the core layer, of a propylene-α-olefin elastomer having within the range of from 5 wt % to 25 wt % α-olefin derived units, by weight of the copolymer; and skin layers comprising one or more polymers having a melting point within the range of from 125° C. to 160° C., a Shore D Hardness within the range of from 55 to 70, and a Flexural Modulus of at least 600 MPa; wherein the film has a Haze value of less than 10%, the film being biaxially oriented but shrinkable substantially only in the MD.

Porous biaxially oriented high density polyethylene film with hydrophilic properties

The present invention relates to a biaxially oriented film having a water wettable surface, the film containing a water wettable porous high density polyethylene (HDPE) surface layer. The water wettable surface layer contains porous HDPE and a silicone glycol coating impregnated in the pore of the HDPE surface layer. The biaxially oriented water wettable film is useful for ink jet printing.

Thermoplastic film structures with a low melting point outer layer

A film structure including at least a base layer containing a thermoplastic polymer and at least an outer layer containing a low melting point polymer. Methods of manufacturing the film structure, including the steps of coextruding melts corresponding to the individual layers of the film structure through a die and thereafter: simultaneously biaxially stretching the coextruded film sheet; or sequentially biaxially stretching the coextruded film sheet, wherein the machine-direction orientation (MDO) is performed with a radiant-heated MDO stretcher. An extrusion-coated film structure exhibiting strong bond adhesion, and a method of manufacturing the same are also provided.

White, Conformable Films for Pressure-Sensitive-Labeling Applications

A squeezable, white polypropylene film is disclosed having a novel balance of conformability, stiffness, modulus, opacity, and whiteness. The film comprises an ABCBA structure having a core layer of polypropylene resin with an elastomeric copolymer and a cavitating agent. Two intermediate layers of polyproplene resin are present on either side, the intermediate layers optionally comprising an elastomeric copolymer and a pigmenting agent. Two polymer skin layers surround the two intermediate layers. The resins are co-extruded into a biaxially oriented film having a thickness between 40 to 70 μm for use in pressure-sensitive labeling applications. 1. A biaxially oriented , conformable , multilayer film comprising:a core layer comprising polypropylene resin, an elastomeric copolymer, and a cavitating agent, the core layer having a first side and a second side;a first and second intermediate layer located on the first and second side, respectively, of the core layer, the first and second intermediate layers comprising a polypropylene resin; anda first and second skin layer, located on the first and second intermediate layers, respectively, opposite the core layer,wherein the biaxially oriented, conformable, multilayer film is at least 70% opaque and exhibits no creasing after ten cycles of deflation/inflation of a bottle with a label adhered thereto, wherein the label comprises the biaxially oriented, conformable, multilayer film.2. The biaxially oriented claim 1 , conformable claim 1 , multilayer film of claim 1 , wherein at least one of the first intermediate layer or second intermediate layer further comprises an elastomeric copolymer and a pigmenting agent.3. The biaxially oriented claim 2 , conformable claim 2 , multilayer film of claim 2 , wherein the pigmenting agent comprises titanium oxide in a propylene blend.4. The biaxially oriented claim 1 , conformable claim 1 , multilayer film of claim 1 , wherein the biaxially oriented claim 1 , conformable claim 1 , ...

MONOWEB BARRIER FILMS FOR COLD-SEAL APPLICATIONS

Disclosed are compositions, structures, and methods for monoweb barrier films for cold-seal applications. The monoweb barrier film may include a core having a first side and a second side. Further, the monoweb barrier film may include a first skin layer immediate to the first side, wherein the first skin layer comprises an ethylene-vinyl-alcohol-based or a polyvinyl-alcohol-based coating that is receptive to one or more cold-seal adhesives. Further still, the monoweb barrier film may include a second skin layer immediate to the second side, wherein the second skin layer comprises a treated surface, wherein the first skin layer is antiblocking to the second skin layer in a reel. 1. A monoweb barrier film comprising:a core having a first side and a second side;a first skin layer immediate to the first side, wherein the first skin layer comprises an ethylene-vinyl-alcohol-based or a polyvinyl-alcohol-based coating that is receptive to one or more cold-seal adhesives; anda second skin layer immediate to the second side, wherein the second skin layer comprises a treated surface,wherein the first skin layer is antiblocking, without an antiblocking agent, to the second skin layer in a reel.2. The monoweb barrier film of claim 1 , further comprising one or more tie layers between the core and at least member of a group consisting of the first skin layer claim 1 , the second skin layer claim 1 , and both.3. The monoweb barrier film of claim 2 , wherein the one or more tie layers comprises polypropylene polymers claim 2 , polyethylene polymers claim 2 , polymers grated with maleic anhydride claim 2 , or combinations thereof.4. The monoweb barrier film of claim 1 , wherein the core comprises polypropylene claim 1 , polyethylene claim 1 , polyethylene terephthalate claim 1 , or combinations thereof.5. The monoweb barrier film of claim 1 , wherein the core comprises a cavitating agent.6. The monoweb barrier film of claim 1 , wherein the second skin layer comprises one or more ...

METALLIZED, ORIENTED, AND THIN LLDPE FILMS

This disclosure provides compositions and methods for an oriented film that may include a core layer consisting essentially of biaxially oriented linear low-density polyethylene, wherein the core layer has a first side and a second side. Further, the film may include a first sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, and a second sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, wherein the linear low-density polyethylenes in each of the film's layers may be of more than one type/grade, have the same or different densities, or both. Further still, the film is 30 μm or less in thickness, has a water-vapor transmission rate of ≤1 g/m/d at 38° C. and 90% relative humidity, and has an oxygen transmission rate of ≤100 cm/m/d at 23° C. and 0% relative humidity. 1. A film comprising:a core layer consisting of biaxially oriented linear low-density polyethylene and optionally additives, wherein the core layer has a first side and a second side;a first sealant layer consisting of biaxially oriented linear low-density polyethylene, and optionally additives, on the first side; anda second sealant layer consisting of biaxially oriented linear low-density polyethylene, and optionally additives, on the second side,{'sup': 2', '3', '2, 'wherein the film is 30 μm or less in thickness, has a water-vapor transmission rate of ≤1 g/m/d at 38° C. and 90% relative humidity, and has an oxygen transmission rate of ≤100 cm/m/d at 23° C. and 0% relative humidity.)'}2. The film of claim 1 , wherein one or more additives in the core layer claim 1 , the first sealant layer claim 1 , the second sealant layer claim 1 , or combinations thereof.)3. The film of claim 1 , wherein ≤5 wt. % of silicone gum is an additive that is present in the first sealant layer claim 1 , the second sealant layer claim 1 , or both.4. The film of claim 1 , wherein the film further comprises one ...

Co-Extruded, Biaxially Oriented, Matte HDPE Films

Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising at least 80 wt. % of high-density polyethylene, and a second skin layer comprising either: (i) one or more low-density polyethylenes; or (ii) one or more polypropylene-based copolymers. The multilayer film may be oriented in at least one direction. 1. A multilayer film comprising:a core layer comprising at least 50 wt. % of high-density polyethylene;a first skin layer comprising at least 80 wt. % of high-density polyethylene and cyclic olefin copolymer; anda second skin layer comprising either: (i) one or more low-density polyethylenes; or (ii) one or more polypropylene-based copolymers,wherein the multilayer film is oriented in at least one direction.2. The multilayer film of claim 1 , further comprising one or more additives.3. The multilayer film of claim 1 , further comprising one or more tie layers.4. The multilayer film of claim 3 , wherein at least one of the one or more tie layers is matte.5. The multilayer film of claim 3 , wherein at least one of the one or more tie layers comprise at least one olefin block copolymer.6. The multilayer film of claim 3 , wherein at least one of the one or more tie layers comprise at least one low-density polyethylene.7. The multilayer film of claim 3 , wherein the one or more tie layers comprise high-density polyethylene.8. The multilayer film of claim 3 , wherein the one or more tie layers comprise at least 40 wt. % high-density polyethylene.9. The multilayer film of claim 1 , wherein the core layer further comprises 20 wt. % or less of linear claim 1 , low-density polyethylene.10. The multilayer film of claim 1 , wherein the first skin layer further comprises hydrocarbon resin.11. The multilayer film of claim 10 , wherein the first skin layer further comprises wax.12. The multilayer ...

Biaxially Oriented High-Density Polyethylene Films with Improved Sealant Skin

Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt. % of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising an ethylene-propylene polymer, and a second skin layer comprising at least one or more α-olefin copolymers and antiblock. One or more of the at least one or more α-olefin copolymers in the second skin layer, which may be a sealant skin layer, may include at least one ethylene-propylene-butylene polymer in combination with a plastomer and/or elastomer that contain propylene, ethylene, or a combination thereof. 1. A multilayer film comprising:a core layer comprising at least 50 wt. % of high-density polyethylene;a first skin layer comprising an ethylene-propylene polymer; anda second skin layer consisting of: (i) ethylene-propylene-terpolymer, (ii) from about 15 wt. % through about 25 wt. % of one or more α-olefin elastomers, α-olefin block copolymer elastomers, or ethylene α-olefin plastomers, and, (iii) optionally, antiblock,wherein the multilayer film is oriented in at least one direction.2. The multilayer film of claim 1 , further comprising one or more additives.3. The multilayer film of claim 1 , further comprising one or more tie layers.4. The multilayer film of claim 3 , wherein the one or more tie layers comprise at least one olefin block copolymer.5. The multilayer film of claim 1 , wherein the core layer further comprises low-density polyethylene.6. The multilayer film of claim 1 , wherein the core layer further comprises hydrocarbon resin claim 1 , optionally in a masterbatch.7. The multilayer film of claim 1 , wherein the core layer further comprises 20 wt. % or less of linear claim 1 , low-density polyethylene claim 1 , hydrocarbon resin or combination thereof.8. The multilayer film of claim 1 , wherein the core layer comprises at least 80 wt. % of the high-density polyethylene.9. The multilayer film of claim 1 , ...

METALLIZED, ORIENTED, LINEAR, LOW-DENSITY, POLETHYLENE FILMS

Disclosed are compositions, methods and uses for thin multi-layered films that may include a metallizable skin layer that include polyethylene polymer(s), wherein the metallizable skin layer may be treated one or more times. The multi-layered films include a core layer and a sealant layer, wherein each of these layers includes metallocene-catalyzed, linear, low-density polyethylene. The core layer is located between the metallizable skin layer and the sealant layer. These films may include one or more additives in any of the layers and/or include one or more tie layers. The multi-layered films may be biaxially oriented, have a haze equal to or below 5%, and have an elastic modulus equal to or below 350 N/mm. The multi-layered films may also include a metallized layer on the metallizable skin layer, a coated layer on the metallizable skin layer, and/or be laminated to a polyethylene-based polymer, such as polyethylene terephthalate. 1. A multi-layered film comprising:a metallizable skin layer comprising one or more polyethylene polymers, wherein the metallizable skin layer is treated one or more times; anda core layer and a sealant layer, wherein each comprises metallocene-catalyzed, linear, low-density polyethylene(s),wherein the core layer is located between the metallizable skin layer and the sealant layer,{'sup': '2', 'wherein the multi-layered film is biaxially oriented, has a haze equal to or below 5%, and an elastic modulus equal to or below 350 N/mm, and'}wherein the multi-layered film is laminated to a polyethylene-based substrate and has an adhesive bond strength equal to at least 10 g/inch when delaminated.2. The multi-layered film of claim 1 , further comprising a metallized layer on the metallizable skin layer.3. The multi-layered film of claim 2 , further comprising a coated layer on the metallizable skin layer.4. The multi-layered film of claim 2 , wherein the multi-layered film has an optical density equal to or below 2.5.5. The multi-layered film of ...

Bi-Oriented, Cavitated, Linear, Low-Density Films with Good Sealing Properties

Disclosed are methods, compositions, structures and uses for a biaxially oriented, multilayered film that may include a core layer comprising LLDPE, such as mLLDPE, wherein the core layer is flanked by a first skin layer and a second skin layer. This same type (e.g., melting index, density, and/or melting peak) of LLDPE, or different type(s) or blends thereof may be in the first skin layer and/or the second skin layer, wherein the first skin layer is located on a first side of the core layer, and the second skin layer is located on a second of the core layer, wherein the first side is on an opposite side of the core layer as compared to the second side. The biaxially oriented, multilayered film may have a sealing strength of at least 400 g/cm at 100° C. under a pressure of 41 N/cmat a dwell time of 0.75 s. 1. A biaxially oriented , multilayered film comprising:a core layer comprising linear, low-density polyethylene (LLDPE) and one or more cavitation agents, wherein the core layer is flanked by a first side and a second side;a first skin layer comprising LLDPE that is located on the first side; anda second skin layer comprising LLDPE that is located on the second side,{'sup': 2', '3, 'wherein the biaxially oriented, multilayered film is white-opaque and has a sealing strength of at least 400 g/cm at 100° C. under a pressure of 41 N/cmat a dwell time of 0.75 s, light transmission of less than or equal to 50%, and a density at or below 0.8 g/cm.'}2. The biaxially oriented claim 1 , multilayered film of claim 1 , wherein the first skin layer claim 1 , the second skin layer or both comprise barrier additives.321. The biaxially oriented claim 1 , multilayered film of claim claim 1 , wherein the one or more cavitating agents present in the core layer comprise ≤30 wt. %.4. The biaxially oriented claim 1 , multilayered film of claim 1 , further comprising one or more additives.5. The biaxially oriented claim 1 , multilayered film of claim 1 , wherein the LLDPE claim 1 , as ...

Coated, Oriented, Linear, Low-Density, Polyethylene Films

Disclosed are biaxially oriented, multilayered films, wherein said films may include a core layer comprising linear, low-density polyethylene, and the core layer is optionally cavitated. Said films may further include a first skin layer on a first side of the core layer, and a second skin layer on a second side of the core layer, wherein the first skin layer and the second skin layer comprise thin layers of linear, low-density polyethylene of a same or different type. Further, said films may include an aqueous-based primer on an outer surface of the second skin layer, wherein the outer surface faces away from the core layer. Further still, said films may include a sealant coating layer on the first skin layer and a barrier coating layer on the second skin layer, wherein the sealant coating layer and the barrier coating layer are aqueous-based. 1. A biaxially oriented multilayered film comprising:a core layer consisting essentially of linear, low-density polyethylene, wherein the core layer is optionally cavitated;a first skin layer on a first side of the core layer, and a second skin layer on a second side of the core layer, wherein the first skin layer and the second skin layer comprise linear, low-density polyethylene of a same or different type;an aqueous-based primer on an outer surface of the second skin layer, wherein the outer surface faces away from the core layer;a sealant coating layer on the first skin layer; anda barrier coating layer on the aqueous-based primer on the second skin layer,wherein the sealant coating layer and the barrier coating layer are aqueous-based, andwherein the barrier coating layer when laminated to a polymeric substrate has a seal strength of at least 1250 g/cm at temperatures within a range from 130° C. through 150° C. under a pressure of 410 kPa and a dwell time of 0.75 s.2. The biaxially oriented multilayered film of claim 1 , wherein the core layer further comprises 5 wt. % or less of one or more hydrocarbon resins.3. The ...

Bi-Oriented, Linear, Low-Density Polyethylene Film with Improved Sealing Properties

Disclosed are compositions, methods, and uses for multi-layered films which are intended to provide high quality sealants having sufficient sealing strength for use in packaging and other applications while being more cost-effective and higher-yield than traditional combinations of unoriented polyolefin films and web materials. The film comprises a multilayer structure of LLDPE having a core layer, a surface skin layer, and a sealant skin layer. The core layer further comprises a slip agent, while the skin layers further comprise antiblock agents. Optional embodiments may include tie layers between the core layer and the skin layers, or may include pigments in one or more of the core layer or tie layers. The surface skin layer may be subjected to a surface treatment (e.g., corona treatment) to improve suitability for coating or metallization. 1. A biaxially oriented , multilayer film comprising:a core layer;a surface skin layer comprising a first anti-block agent;a sealant skin layer comprising either a second anti-block agent or the first anti-block agent at a greater concentration than the surface skin layer,a first tie layer between the surface skin layer and the core layer; anda second tie layer between the sealant skin layer and the core layer,wherein the core layer, the first tie layer, and the surface skin layer comprise one or more linear, low-density polyethylenes, and the second tie layer and the sealant skin layer also comprise linear, low density polyethylene(s), and wherein the one or more linear, low-density polyethylenes have lower melt indices and greater densities than the linear, low-density polyethylene(s).2. The biaxially oriented claim 1 , multilayer film of claim 1 , wherein the biaxially oriented claim 1 , multilayer film has a total thickness between 10 μm and 120 μm.3. The biaxially oriented claim 1 , multilayer film of claim 1 , wherein the core layer claim 1 , the sealant skin layer claim 1 , the second tie layer claim 1 , or combinations ...

Laminated Films

Disclosed are methods, compositions and structures for laminated films. In one example embodiment, disclosed is a structure and composition, which includes a printable coating receptive to electrophotographic ink, an optionally oriented film having a coating side and a laminating side, wherein the printable coating is applied to the coating side, and a substrate dry-laminated to the laminating side. 1. A composition comprising:a printable coating receptive to electrophotographic ink;an optionally oriented film having a coating side and a laminating side, wherein the printable coating is applied to the coating side; anda substrate dry-laminated to the laminating side.2. The composition of claim 1 , wherein the optionally oriented film comprises a coated film.3. The composition of claim 1 , further comprising primer(s) on the coating side claim 1 , the laminating side claim 1 , or both.4. The composition of claim 1 , further comprising one or more coatings comprising a sealant claim 1 , barrier coating claim 1 , machinability coating claim 1 , the printable coating claim 1 , another printable coating claim 1 , and combinations thereof claim 1 , wherein the one or more coatings are applied to the laminating side.5. The composition of claim 4 , wherein the one or more coatings comprise a polyolefin dispersion or a polyurethane-based polymer.6. The composition of claim 4 , wherein the printable coating has a coating weight in a range from 0.5 to 15 g/m.7. The composition of claim 1 , further comprising a primer and a sealable coating on the coating side.8. The composition of claim 1 , wherein lamination of the substrate dry-laminated to the laminating side has sealing activating temperatures in a range from 80° C. to 90° C. for 300 g/inch seal strengths.9. The composition of claim 1 , further comprising a seal strength of 200 g/inch or more at a pressure of 250 kPa for a 0.2 s dwell time at 150° C.10. The composition of claim 1 , wherein the optionally oriented film is ...

POLYETHYLENE FILM COMPOSITIONS, LAMINATES, AND METHODS FOR MAKING THE SAME

Disclosed are transparent films having a core comprising at least 50 wt. % high-density polyethylene and, optionally, 50 wt. % or less of linear low-density polyethylene. Further, the transparent films may have a printable skin layer adjacent to a first side of the core, wherein the printable skin layer may comprise, consists essentially of or consists of linear low-density polyethylene or ethylene-propylene copolymer. Further, the transparent films may have a skin layer adjacent to a second side of the core, wherein the skin layer may comprise, consists essentially of or consists of linear low-density polyethylene or ethylene-propylene copolymer. Further still, the transparent films may be oriented in at least one direction and have a directional modulus of at least 1200 MPa. Such transparent films may be laminated to a laminating substrate, such as a biaxially oriented polyethylene single or multilayer film, to produce a laminated film with remarkable sealing and integrity. 1. A transparent film comprising:a core comprising at least 50 wt. % high-density polyethylene;a printable skin layer adjacent to a first side of the core;a skin layer adjacent to a second side of the core,wherein the transparent film is oriented in at least one direction, a directional modulus of at least 1200 MPa, and has a haze of 10% or less.2. The transparent film of claim 1 , wherein the printable skin layer consists essentially of linear low-density polyethylene or ethylene-propylene copolymer.3. The transparent film of claim 1 , wherein the skin layer consists essentially of linear low-density polyethylene or ethylene-propylene copolymer.4. The transparent film of claim 1 , further comprising 50 wt. % or less of linear low-density polyethylene.5. The transparent film of claim 1 , further comprising one or more additives.6. The transparent film of claim 1 , further comprising one or more tie layers.7. The transparent film of claim 1 , wherein the transparent film has a thickness of 20 μm ...

Multi-layered, oriented, weldable film structure wit a better processability

Multilayer shrink films, labels made therefrom and use thereof

A multilayer heat shrink film including a core layer including one or more alpha-olefin polymer and at least one skin layer including one or more cyclic olefin copolymers (COC), process for its preparation and uses thereof.

Heat weldable film structure consisting of several layers

Tepelně svařovatelná několikavrstvá filmová struktura se zlepšenou strojní zpracovatelností obsahuje vrchní tepelně svařovatelnou vrstvu, obsahující olefinický homopolymer, kopolymer nebo terpolymer, jejíž vnější povrch, který je postikovatelný, svařovatelný a strojně zpracovatelný, je upraven, přičemž tato vrstva obsahuje jako kombinované kluzné a protiblokovací činidlo částicový zesíťovaný hydrokarbylsubstituovaný polysiloxan, dále mezivrstvu, obsahující olefinický polymer, a spodní tepelně svařovatelnou vrstvu, obsahující olefinický homopolymer, kopolymer nebo terpolymer, jejíž vnější povrch je svařovatelný a strojně zpracovatelný, přičemž tato vrstva obsahuje jako kombinované kluzné a protiblokovací činidlo částicový zesíťovaný hydrokarbylsubstituovaný polysiloxan a kapalný hydrokarbylsubstituovaný polysiloxan. ŕ The thermally weldable multilayer film structure with improved machine workability comprises a top heat sealable layer comprising an olefinic homopolymer, a copolymer or a terpolymer, the outer surface of which can be welded and machinable, wherein the layer comprises a combined slip and anti-lock agent. a cross-linked hydrocarbyl-substituted polysiloxane, an intermediate layer comprising an olefinic polymer, and a lower heat-sealable layer comprising an olefinic homopolymer, a copolymer or a terpolymer, the outer surface of which is weldable and machinable, the layer comprising a crosslinked hydrocarbyl-substituted polysiloxane and a liquid as a combined slip and anti-lock agent hydrocarbyl-substituted polysiloxane. ŕ

Metallized, oriented and thin lldpe films

This disclosure provides compositions and methods for an oriented film that may include a core layer consisting essentially of biaxially oriented linear low-density polyethylene, wherein the core layer has a first side and a second side. Further, the film may include a first sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, and a second sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, wherein the linear low-density polyethylenes in each of the film's layers may be of more than one type/grade, have the same or different densities, or both. Further still, the film is 30 μm or less in thickness, has a water-vapor transmission rate of < 1 g/m2/d at 38°C and 90% relative humidity, and has an oxygen transmission rate of < 100 cm3/m2/d at 23 °C and 0% relative humidity.

Heat-shrinkable polymeric films

The present invention relates to oriented or hot-blown shrink films which may be manufactured from by a number of processes. The oriented films may be manufactured by double bubble, LISIM, tape bubble, trapped bubble or tenter framing processes. The films of the present invention are useful as a shrink film to package and label a variety of products. The films exhibit a high degree of MD shrinkage in a very controlled and consistent manner while providing a number of other positive characteristics such as optical clarity, puncture and abrasion resistance, controlled gauge, and superior web winding and handling characteristics. The shrink control layers of the films of the present invention contain a modifier component selected from plastomers and/or metallocene catalyzed ethylene-propylene copolymers and blends thereof.

Heat-shrinkable polymeric films

The present invention relates to oriented or hot-blown shrink films which may be manufactured from by a number of processes. The oriented films may be manufactured by double bubble, LISIM, tape bubble, trapped bubble or tenter framing processes. The films of the present invention are useful as a shrink film to package and label a variety of products. The films exhibit a high degree of MD shrinkage in a very controlled and consistent manner while providing a number of other positive characteristics such as optical clarity, puncture and abrasion resistance, controlled gauge, and superior web winding and handling characteristics. The shrink control layers of the films of the present invention contain a modifier component selected from plastomers and/or metallocene catalyzed ethylene-propylene copolymers and blends thereof.

RETRACTIBLE POLYMERIC FILMS WITH HEAT.

Una película polimérica retráctil con el calor orientada biaxialmente que comprende una capa de control de retracción formada por una mezcla de 60% en peso a 90% en peso de un componente polimérico principal y de 10% en peso a 40% en peso de un componente de modificación, en la que el componente de modificación se escoge en el grupo formado por un plastómero de etileno, un plastómero de propileno, un copolímero de etileno/propileno catalizado por metaloceno y sus mezclas, y en la que la película presenta una retracción en la dirección de la máquina de 30% a 50% a 135ºC y una retracción en la dirección transversal menor que 5% a 135ºC. A biaxially oriented heat shrinkable polymeric film comprising a retraction control layer formed by a mixture of 60% by weight to 90% by weight of a main polymer component and from 10% by weight to 40% by weight of a component of modification, in which the modification component is chosen in the group consisting of an ethylene plastomer, a propylene plastomer, an ethylene / propylene copolymer catalyzed by metallocene and mixtures thereof, and in which the film exhibits shrinkage in the machine direction from 30% to 50% at 135 ° C and a retraction in the transverse direction less than 5% at 135 ° C.

Heat-shrinkable polymeric films

HEAT SHRINKABLE POLYMER FOILS

Heat-shrinkable polymeric films

The present invention relates to oriented or hot-blown shrink films which may be manufactured from by a number of processes. The oriented films may be manufactured by double bubble, LISIM, tape bubble, trapped bubble or tenter framing processes. The films of the present invention are useful as a shrink film to package and label a variety of products. The films exhibit a high degree of MD shrinkage in a very controlled and consistent manner while providing a number of other positive characteristics such as optical clarity, puncture and abrasion resistance, controlled gauge, and superior web winding and handling characteristics. The shrink control layers of the films of the present invention contain a modifier component selected from plastomers and/or metallocene catalyzed ethylene-propylene copolymers and blends thereof.

Sealable packaging structures and applications related thereto

Heat-sealable, multi-layer composite packaging structures that are suitable for packaging and having improved sealing properties and simplified construction as compared to prior art composite film constructions are disclosed. The inventive film structure includes a first substrate, such as paper, bonded such as by extrusion lamination, to a sealable, high-barrier film including in this order : (1) a core layer comprising from about 5 wt% to about 40 wt % of a first polymer wherein the first polymer includes a density in the range of 0,850g/cm3 to 0,920 gfcm3, a DSC melting point in the range of 40°c to 160°c, and a melt flow rate in the range of 2 dg/min to 100 dg/min; (2) a tie layer comprising said first polymer; and (3) a sealant layer, the tie layer being on a side of the core layer opposite the first substrate. This inventive 'paper-adhesive- polymer' lamination may replace prior art 'paper-adhesive-foil-adhesive' foil- based tandem laminations. An improved or comparable polymer film substrate may replace the 'foil-adhesive' layer components of the popular incumbent prior art structure.

Polyethylene film compositions, laminates, and methods for making the same

Disclosed are transparent films having a core comprising at least 50 wt.% high-density polyethylene and, optionally, 50 wt.% or less of linear low-density polyethylene. Further, the transparent films may have a printable skin layer adjacent to a first side of the core, wherein the printable skin layer may comprise, consists essentially of or consists of linear low-density polyethylene or ethylene-propylene copolymer. Further, the transparent films may have a skin layer adjacent to a second side of the core, wherein the skin layer may comprise, consists essentially of or consists of linear low-density polyethylene or ethylene-propylene copolymer. Further still, the transparent films may be oriented in at least one direction and have a directional modulus of at least 1200 MPa. Such transparent films may be laminated to a laminating substrate, such as a biaxially oriented polyethylene single or multilayer film, to produce a laminated film with remarkable sealing and integrity.

Coated, oriented, linear, low-density, polethylene films

Matte surface film

A multi-layered polymeric film comprising a core layer comprising a polyolefin, and a first skin layer comprising a low melting point polyolefin and a matte producing agent, and a method for producing same.

Bi-oriented, cavitated, linear, low-density film with good sealing properties

Disclosed are methods, compositions, structures and uses for a biaxially oriented, multilayered film that may include a core layer comprising LLDPE, such as mLLDPE, wherein the core layer is flanked by a first skin layer and a second skin layer. This same type (e.g., melting index, density, and/or melting peak) of LLDPE, or different type(s) or blends thereof, may be in the first skin layer and/or the second skin layer, wherein the first skin layer is located on a first side of the core layer, and the second skin layer is located on a second of the core layer, wherein the first side is on an opposite side of the core layer as compared to the second side. The biaxially oriented, multilayered film may have a sealing strength of at least 400 g/cm at 100 °C under a pressure of 41 N/cm 2 at a dwell time of 0.75 s.

Biaxially oriented high-density polyethylene films with improved sealant skin

Disclosed are compositions and methods for multilayer films, which, in one embodiment may comprise a core layer comprising at least 50 wt.% of high-density polyethylene. Further, the multilayer film may include a first skin layer comprising an ethylene-propylene polymer, and a second skin layer comprising at least one or more a-olefin copolymers and antiblock. One or more of the at least one or more a-olefin copolymers in the second skin layer, which may be a sealant skin layer, may include at least one ethylene-propylene-butylene polymer in combination with a plastomer and/or elastomer that contain propylene, ethylene, or a combination thereof.

Metallized, oriented and thin lldpe films

Metallized, oriented and thin lldpe films

This disclosure provides compositions and methods for an oriented film that may include a core layer consisting essentially of biaxially oriented linear low-density polyethylene, wherein the core layer has a first side and a second side. Further, the film may include a first sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, and a second sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, wherein the linear low-density polyethylenes in each of the film's layers may be of more than one type/grade, have the same or different densities, or both. Further still, the film is 30 μm or less in thickness, has a water-vapor transmission rate of < 1 g/m 2 /d at 38°C and 90% relative humidity, and has an oxygen transmission rate of < 100 cm 3 /m 2 /d at 23 °C and 0% relative humidity.

Uniaxially shrinkable, biaxially oriented polypropylene films

Metallized, oriented, linear, low-density, polethylene films

White, conformable films for pressure-sensitive-labeling applications

A squeezable, white polypropylene film is disclosed having a novel balance of conformability, stiffness, modulus, opacity, and whiteness. The film comprises an ABCBA structure having a core layer of polypropylene resin with an elastomeric copolymer and a cavitating agent. Two intermediate layers of polypropylene resin are present on either side, the intermediate layers optionally comprising an elastomeric copolymer and a pigmenting agent. Two polymer skin layers surround the two intermediate layers. The resins are co-extruded into a biaxially oriented film having a thickness between 40 to 70 μm for use in pressure-sensitive labeling applications.

Linear, bioriented, low-density polyethylene film with improved sealing properties

Una película de múltiples capas biaxialmente orientada que comprende: una capa núcleo; una capa de revestimiento superficial que comprende un primer agente antibloqueo; una capa de revestimiento sellante que comprende ya sea un segundo agente antibloqueo o el primer agente antibloqueo a una concentración mayor que la capa de revestimiento superficial; una primera capa de adhesión entre la capa de revestimiento superficial y la capa núcleo; y una segunda capa de adhesión entre la capa de revestimiento sellante y la capa núcleo, en donde la capa núcleo, la primera capa de adhesión y la capa de revestimiento superficial comprenden uno o más polietilenos lineales de baja densidad, y la segunda capa de adhesión y la capa de revestimiento sellante también comprenden polietileno(s) lineal(es) de baja densidad, y en donde el uno o más polietilenos lineales de baja densidad de la capa núcleo, la primera capa de adhesión y la capa de revestimiento superficial tienen índices de fusión más bajos y mayores densidades que el(los) polietileno(s) lineal(es) de baja densidad de la segunda capa de adhesión y la capa de revestimiento sellante. A biaxially oriented multilayer film comprising: a core layer; a surface coating layer comprising a first anti-blocking agent; a sealant coating layer comprising either a second antiblocking agent or the first antiblocking agent at a higher concentration than the surface coating layer; a first layer of adhesion between the surface coating layer and the core layer; and a second adhesion layer between the sealant coating layer and the core layer, wherein the core layer, the first adhesion layer and the surface coating layer comprise one or more linear low-density polyethylenes, and the second adhesion layer and the sealant coating layer also comprise linear low-density polyethylene (s), and wherein the one or more linear low-density polyethylenes of the core layer, the first adhesion layer and the surface coating layer have indices lower melt ...

Metallized, oriented, linear, low-density, polethylene films

Disclosed are compositions, methods and uses for thin multi-layered films that may include a metallizable skin layer that include polyethylene polyrner(s), wherein the metallizable skin layer may be treated one or more times. The multi-layered films include a core layer and a sealant layer, wherein each of these layers includes metallocene-catalyzed, linear, low-density polyethylene. The core layer is located between the metallizable skin layer and the sealant layer. These films may include one or more additives in any of the layers and/or include one or more tie layers. The multi-layered films may be biaxially oriented, have a haze equal to or below 5%, and have an elastic modulus equal to or below 350 N/mm2. The multi-layered films may also include a metallized layer on the metallizable skin layer, a coated layer on the metallizable skin layer, and/or be laminated to a polyethylene-based polymer, such as polyethylene terephthalate.

Thermoplastic film structures with a low melting point outer layer

Bi-oriented, linear, low-density, polyetheylene film with improved sealing properties

Transparent, coated, heat-shrinkable, oriented polypropylene film

A transparent, coated, heat-shrinkable film having controlled shrinkability which includes a biaxially oriented substrate having a polypropylene blend core layer and a water based coating. The shrink during the application on packaging machines is achieved through the balanced MD-TD (machine direction and transverse direction) film retraction in and near the sealed areas. The substrate can also include outer layers of a propylene-ethylene-butylene terpolymer disposed on either side of the polypropylene core layer or on either side of additional intermediate layers that may be disposed between the outer layers and the core layer. The invention also includes a process for making this coated heat-shrinkable film. The coated film is formed under controlled temperature and tension conditions to produce a packaging film having shrinkable within a controlled shrinkability range.

Uniaxially shrinkable, biaxially oriented polypropylene films

Provided is a polypropylene film, and a method of making the film, the film comprising at least one core layer sandwiched between at least two skin layers, the layers comprising a core layer comprising polypropylene and within the range of from 20 wt% to 50 wt%, by weight of the materials in the core layer, of a propylene-a-olefin elastomer having within the range of from 5 wt% to 25 wt% a-olefin derived units, by weight of the copolymer; and skin layers comprising one or more polymers having a melting point within the range of from 125°C to 160°C, a Shore D Hardness within the range of from 55 to 70, and a Flexural Modulus of at least 600 MPa; wherein the film has a Haze value of less than 10%, the film being biaxially oriented but shrinkable substantially only in the MD.

Metallized, oriented, linear, low-density, polethylene films

Disclosed are compositions, methods and uses for thin multi-layered films that may include a metallizable skin layer that include polyethylene polyrner(s), wherein the metallizable skin layer may be treated one or more times. The multi-layered films include a core layer and a sealant layer, wherein each of these layers includes metallocene-catalyzed, linear, low-density polyethylene. The core layer is located between the metallizable skin layer and the sealant layer. These films may include one or more additives in any of the layers and/or include one or more tie layers. The multi-layered films may be biaxially oriented, have a haze equal to or below 5%, and have an elastic modulus equal to or below 350 N/mm2. The multi-layered films may also include a metallized layer on the metallizable skin layer, a coated layer on the metallizable skin layer, and/or be laminated to a polyethylene-based polymer, such as polyethylene terephthalate.

White, conformable films for pressure-sensitive-labeling applications

Multilayer oriented heat sealable film

A film structure which includes at least one layer of an olefin homo-, co- or ter-polymer having a surface-treated external surface which is printable, sealable and machinable, the layer containing, as combined slip agent and antiblock, a particulate cross-linked hydrocarbyl-substituted polysiloxane, preferably a cross-linked polymonoalkylsiloxane, and/or liquid polydimethyl siloxane. A method of producing a heat sealable multilayer film structure of improved machinability is also provided.

Metallized multi-layer films, methods of manufacture and articles made therefrom

Multi-layer films particularly suited for packaging applications, including a core layer, a seal layer located on one side of the core layer, the seal layer comprising a polyolefin polymer and a silicone gum and a metallized layer located on the opposite side of the core layer from the seal layer are provided. Optionally, the multi-layer film may have a first tie layer located intermediate the core layer and the seal layer and/or a second tie layer located intermediate the core layer and the metallized layer. Embodiments may have the desirable combination of improved metal adhesion and slip properties.

Multilayer shrink, films, labels made therefrom and use thereof

A multilayer heat shrink film including a core layer having an alpha-olefin polymer and at least one skin layer having a cyclic olefin copolymer (COC), process for its preparation and uses thereof.

Laminated films

Disclosed are methods, compositions and structures for laminated films. In one example embodiment, disclosed is a structure and composition, which includes a printable coating receptive to electrophotographic ink, an optionally oriented film having a coating side and a laminating side, wherein the printable coating is applied to the coating side, and a substrate dry-laminated to the laminating side.

Metallized, oriented, linear, low-density, polethylene films

Disclosed are compositions, methods and uses for thin multi-layered films that may include a metallizable skin layer that include polyethylene polyrner(s), wherein the metallizable skin layer may be treated one or more times. The multi-layered films include a core layer and a sealant layer, wherein each of these layers includes metallocene-catalyzed, linear, low-density polyethylene. The core layer is located between the metallizable skin layer and the sealant layer. These films may include one or more additives in any of the layers and/or include one or more tie layers. The multi-layered films may be biaxially oriented, have a haze equal to or below 5%, and have an elastic modulus equal to or below 350 N/mm2. The multi-layered films may also include a metallized layer on the metallizable skin layer, a coated layer on the metallizable skin layer, and/or be laminated to a polyethylene-based polymer, such as polyethylene terephthalate.

Sealable packaging structures and applications related thereto

Heat-sealable, multi-layer composite packaging structures that are suitable for packaging and having improved sealing properties and simplified construction as compared to prior art composite film constructions are disclosed. The inventive film structure includes a first substrate, such as paper, bonded such as by extrusion lamination, to a sealable, high-barrier film including in this order : (1) a core layer comprising from about 5 wt% to about 40 wt % of a first polymer wherein the first polymer includes a density in the range of 0,850g/cm3 to 0,920 gfcm3, a DSC melting point in the range of 40~c to 160~c, and a melt flow rate in the range of 2 dg/min to 100 dg/min; (2) a tie layer comprising said first polymer; and (3) a sealant layer, the tie layer being on a side of the core layer opposite the first substrate. This inventive "paper-adhesive- polymer" lamination may replace prior art "paper-adhesive-foil-adhesive" foil- based tandem laminations. An improved or comparable polymer film substrate may replace the "foil-adhesive" layer components of the popular incumbent prior art structure.

Coated, oriented, linear, low-density, polyethylene films

Disclosed are biaxially oriented, multilayered films, wherein said films may include a core layer comprising linear, low-density polyethylene, and the core layer is optionally cavitated. Said films may further include a first skin layer on a first side of the core layer, and a second skin layer on a second side of the core layer, wherein the first skin layer and the second skin layer comprise thin layers of linear, low-density polyethylene of a same or different type. Further, said films may include an aqueous-based primer on an outer surface of the second skin layer, wherein the outer surface faces away from the core layer. Further still, said films may include a sealant coating layer on the first skin layer and a barrier coating layer on the second skin layer, wherein the sealant coating layer and the barrier coating layer are aqueous-based.

Multilayer shrink, films, labels made therefrom and use thereof

A multilayer heat shrink film including a core layer having an alpha-olefin polymer and at least one skin layer having a cyclic olefin copolymer (COC), process for its preparation and uses thereof.

Bi-oriented, linear, low-density, polyetheylene film with improved sealing properties.

Se divulgan composiciones, métodos y usos para películas multicapas que están destinadas a proveer selladores de alta calidad que tienen una resistencia de sellado suficiente para su uso en el envasado y otras aplicaciones, mientras que son más efectivas de costo y tienen un rendimiento más alto que las combinaciones tradicionales de películas de poliolefina y materiales de tramas no orientados. La película comprende una estructura multicapa de LLDPE que tiene una capa central, una capa exterior de superficie y una capa exterior selladora. La capa central además comprende un agente de deslizamiento, mientras que las capas exteriores además comprenden agentes antibloqueo. Las realizaciones opcionales pueden incluir capas de unión entre la capa central y las capas exteriores, o pueden incluir pigmentos en una o más de la capa central o las capas de unión. Las capas exteriores de superficie se pueden someter a un tratamiento de la superficie (por ejemplo, tratamiento en corona) para mejorar la adecuación para el recubrimiento o la metalización.

Peelable film structure

A film structure (10) which comprises a core layer (12) comprising an olefin polymer; and a heat sealable layer (14) on the core layer (12) comprising a blend of LDPE (low density polyethylene) and a material incompatible with LDPE.

Sealable packaging structures and applications related thereto

Heat-sealable, multi-layer composite packaging structures that are suitable for packaging and having improved sealing properties and simplified construction as compared to prior art composite film constructions are disclosed. The inventive film structure includes a first substrate, such as paper, bonded such as by extrusion lamination, to a sealable, high-barrier film including in this order : (1) a core layer comprising from about 5 wt% to about 40 wt % of a first polymer wherein the first polymer includes a density in the range of 0,850g/cm3 to 0,920 gfcm3, a DSC melting point in the range of 40°c to 160°c, and a melt flow rate in the range of 2 dg/min to 100 dg/min; (2) a tie layer comprising said first polymer; and (3) a sealant layer, the tie layer being on a side of the core layer opposite the first substrate. This inventive 'paper-adhesive- polymer' lamination may replace prior art 'paper-adhesive-foil-adhesive' foil- based tandem laminations. An improved or comparable polymer film substrate may replace the 'foil-adhesive' layer components of the popular incumbent prior art structure.

Polyethylene film compositions, laminates, and methods for making the same

Disclosed are transparent films having a core comprising at least 50 wt.% high-density polyethylene and, optionally, 50 wt.% or less of linear low-density polyethylene. Further, the transparent films may have a printable skin layer adjacent to a first side of the core, wherein the printable skin layer may comprise, consists essentially of or consists of linear low-density polyethylene or ethylene-propylene copolymer. Further, the transparent films may have a skin layer adjacent to a second side of the core, wherein the skin layer may comprise, consists essentially of or consists of linear low-density polyethylene or ethylene-propylene copolymer. Further still, the transparent films may be oriented in at least one direction and have a directional modulus of at least 1200 MPa. Such transparent films may be laminated to a laminating substrate, such as a biaxially oriented polyethylene single or multilayer film, to produce a laminated film with remarkable sealing and integrity.

Mixture used for preparing polymeric films

ORIENTED, MULTILAYER MULTILAYER

Multilayer oriented heat sealable film structure of improved machinability

A film structure which includes at least one layer of an olefin homo-, co- or ter-polymer having a surface-treated external surface which is printable, sealable and machinable, the layer containing, as combined slip agent and antiblock, a particulate cross-linked hydrocarbyl-substituted polysiloxane, preferably a cross-linked polymonoalkylsiloxane, and/or liquid polydimethyl siloxane. A method of producing a heat sealable multilayer film structure of improved machinability is also provided.

Coated, oriented, linear, low-density, polethylene films.

Se divulgan películas multicapas, orientadas biaxialmente, en donde dichas películas pueden incluir una capa central que comprende polietileno de baja densidad, lineal y la capa central está opcionalmente cavitada. Dichas películas pueden incluir además una primera capa exterior sobre un primer lado de la capa central y una segunda capa exterior sobre un segundo lado dela capa central, en donde la primera capa exterior y la segunda capa exterior comprenden capas delgadas de polietileno de baja densidad, lineal de un mismo tipo o de un tipo diferente. Además dichas películas pueden incluir un cebador de base acuosa sobre una superficie exterior de la segunda capa exterior, en donde la superficie exterior no mira hacia la capa central. Más aún, dichas películas pueden incluir una capa de recubrimiento sellador sobre una primera capa exterior y una capa de recubrimiento de barra sobre la segunda capa exterior, en donde la capa de recubrimiento sellador y la capa de recubrimiento de barrera tienen una base acuosa.

Peelable film and method of making a peelable film

A peelable film comprising: (A) a core layer comprising an olefin polymer; (B) a skin layer on at least one surface of the core layer, the skin layer comprising: (i) a blend of a butylene polymer with another olefin polymer; or (ii) a polymer of butylene and at least one other olefin; and (C) a coating layer on the skin layer.

Multi-layer films, methods of manufacture and articles made therefrom

Multi-layer films particularly suited for packaging applications, including a core layer, a tie layer made from at least 10 wt% of a first polymer and where the first polymer preferably is not present in the core layer are provided. Optionally, the multi-layer film may have a skin layer, a second tie layer and/or a second skin layer. Embodiments may have the advantage of improved seal strength, hermeticity, hot tack and reduced-temperature sealability.

Adhesive film

A thermoplastic polymeric film structure comprises a support which is coated with a pressure sensitive adhesive on a first surface thereof. A second surface of the support, opposite to the first surface, comprises medium density polyethylene (MDPE) or low density polyethylene (LDPE).

Multi-layer shrink films, labels made from them and use of them

Una pelicula termorrectractil de multiples capas que comprende: a) una capa central que comprende mas de un polimero de a-olefina; y b) al menos una capa superficial que comprende un copolimero de olefina ciclica (COC), en donde la pelicula termorrectractil de multiples capas esta orientada, caracterizado porque la capa central comprende: (i) del 50 al 95 % en peso de uno o mas elastomeros basados en propileno que comprenden del 8 al 12 % en peso de etileno, y (ii) del 50 al 5 % en peso de un copolimero de etileno y propileno, un terpolimero de etileno, propileno y buteno, o ambos; en donde mas de un polimero de a-olefina comprende diferentes polimeros. A multilayer heat-shrinking film comprising: a) a core layer comprising more than one α-olefin polymer; and b) at least one surface layer comprising a cyclic olefin copolymer (COC), wherein the multilayer thermorectile film is oriented, characterized in that the central layer comprises: (i) 50 to 95% by weight of one or more propylene-based elastomers comprising 8 to 12% by weight of ethylene, and (ii) 50 to 5% by weight of a copolymer of ethylene and propylene, a terpolymer of ethylene, propylene and butene, or both; wherein more than one α-olefin polymer comprises different polymers.

Thermoplastic film structures with a low melting point outer layer

Peelable film and method of making a peelable film

A peelable film comprising: (A) a core layer comprising an olefin polymer; (B) a skin layer on at least one surface of the core layer, the skin layer comprising: (i) a blend of a butylene polymer with another olefin polymer; or (ii) a polymer of butylene and at least one other olefin; and (C) a coating layer on the skin layer.

Abziehbare filmstruktur

White, conformable films for pressure-sensitive-labeling applications

A squeezable, white polypropylene film is disclosed having a novel balance of conformability, stiffness, modulus, opacity, and whiteness. The film includes an ABCBA structure having a core layer of polypropylene resin with an elastomeric copolymer and a cavitating agent. Two intermediate layers of polypropylene resin are present on either side, the intermediate layers optionally including an elastomeric copolymer and a pigmenting agent. Two polymer skin layers surround the two intermediate layers. The resins are co-extruded into a biaxially oriented film having a thickness between 40 to 70 pm for use in pressure-sensitive labeling applications.

Porous polyethyliene film with an ink jet printed surface

Bi-oriented, linear, low-density polyethylene film with improved sealing properties

Disclosed are compositions, methods, and uses for multi-layered films which are intended to provide high quality sealants having sufficient sealing strength for use in packaging and other applications while being more cost-effective and higher-yield than traditional combinations of unoriented polyolefin films and web materials. The film comprises a multilayer structure of LLDPE having a core layer, a surface skin layer, and a sealant skin layer. The core layer further comprises a slip agent, while the skin layers further comprise antiblock agents. Optional embodiments may include tie layers between the core layer and the skin layers, or may include pigments in one or more of the core layer or tie layers. The surface skin layer may be subjected to a surface treatment (e.g., corona treatment) to improve suitability for coating or metallization.

Bi-oriented, cavitated, linear, low-density film with good sealing properties

Metallized, Oriented, and Thin LLDPE Films

This disclosure provides compositions and methods for an oriented film that may include a core layer consisting essentially of biaxially oriented linear low-density polyethylene, wherein the core layer has a first side and a second side. Further, the film may include a first sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, and a second sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, wherein the linear low-density polyethylenes in each of the film's layers may be of more than one type/grade, have the same or different densities, or both. Further still, the film is 30 μm or less in thickness, has a water-vapor transmission rate of ≤1 g/m2/d at 38° C. and 90% relative humidity, and has an oxygen transmission rate of ≤100 cm3/m2/d at 23° C. and 0% relative humidity.

Metallized, Oriented, and Thin LLDPE Films

This disclosure provides compositions and methods for an oriented film that may include a core layer consisting essentially of biaxially oriented linear low-density polyethylene, wherein the core layer has a first side and a second side. Further, the film may include a first sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, and a second sealant layer consisting essentially of biaxially oriented linear low-density polyethylene on the first side, wherein the linear low-density polyethylenes in each of the film's layers may be of more than one type/grade, have the same or different densities, or both. Further still, the film is 30 μm or less in thickness, has a water-vapor transmission rate of ≤1 g/m 2 /d at 38° C. and 90% relative humidity, and has an oxygen transmission rate of ≤100 cm 3 /m 2 /d at 23° C. and 0% relative humidity.

Abziehbare folie und verfahren zu deren herstellung

Coated, oriented, linear, low-density, polyethylene films

Disclosed are biaxially oriented, multilayered films, wherein said films may include a core layer comprising linear, low-density polyethylene, and the core layer is optionally cavitated. Said films may further include a first skin layer on a first side of the core layer, and a second skin layer on a second side of the core layer, wherein the first skin layer and the second skin layer comprise thin layers of linear, low-density polyethylene of a same or different type. Further, said films may include an aqueous-based primer on an outer surface of the second skin layer, wherein the outer surface faces away from the core layer. Further still, said films may include a sealant coating layer on the first skin layer and a barrier coating layer on the second skin layer, wherein the sealant coating layer and the barrier coating layer are aqueous-based.

Metallized, oriented and thin lldpe films