Patent application number | Description | Published |
20080205800 | TRANSPARENT BIAXIALLY ORIENTED POLYPROPYLENE FILM WITH LOW MOISTURE VAPOR AND OXYGEN TRANSMISSION RATE - A laminate film comprising a polyetheramine resin-containing layer, an adhesion-promoting tie-layer, and a core layer comprising of high crystalline propylene homopolymer and crystalline Fischer-Tropsch wax with an optional amount of hydrocarbon resin which exhibits excellent transparency and oxygen and moisture barrier properties. The laminate film could further have additional layers such as a second polyolefin resin-containing layer, or combinations thereof. | 08-28-2008 |
20090045543 | METHOD OF MAKING BIAXIALLY ORIENTED POLYOLEFIN FILM FOR COLD SEAL APPLICATIONS - The present invention relates to methods of manufacturing multi-layered polyolefin films that provide excellent adhesion to cold seal cohesive formulations. A surface of the film is discharge-treated. It has been found that when the discharge-treated surface has at least 0.3% nitrogen functional groups, it provides an excellent cold seal receptive surface. A biaxially oriented polypropylene film made according the invention may also have a second skin layer, opposite the first layer, which may be used for metallizing, laminating, or printing. | 02-19-2009 |
20090148713 | BIAXIALLY ORIENTED POLYLACTIC ACID FILM WITH HIGH BARRIER - A metallized laminate film exhibiting improved moisture barrier property as well as maintaining a high bio-polymer content and degradability property is disclosed. The laminate film includes a first core layer of polylactic acid polymer and a second skin layer comprising a polyolefin metal receiving layer. The metal receiving layer or the core layer, or both, may be blended with an amount of polar-modified tie-resin to improve bonding. Alternatively, a discrete tie-resin layer may be interposed between the polyolefin metal receiving layer and the crystalline polylactic acid polymer core layer. The polyolefin metal receiving layer may be discharge-treated on the side opposite the core layer and metallized. | 06-11-2009 |
20090311544 | METHOD TO PRODUCE MATTE AND OPAQUE BIAXIALLY ORIENTED POLYLACTIC ACID FILM - A biaxially oriented laminate film including a core layer including a blend of crystalline polylactic acid polymer and an inorganic antiblock particle which is biaxially oriented at low transverse direction orientation temperatures to impart a degree of cavitation around the particles such that a matte or opaque appearance is obtained. The laminate film may further have additional layers such as a heat sealable layer disposed on one side of the core layer including an amorphous polylactic acid resin and/or a polylactic acid resin-containing layer disposed on the side of the core layer opposite the heat sealable layer, a metal layer, or combinations thereof. | 12-17-2009 |
20100040904 | BIAXIALLY ORIENTED POLYLACTIC ACID FILM WITH HIGH BARRIER - A multilayer film including a first layer including a polylactic acid polymer, a second layer of a metal primer, deposited upon one surface of the first polylactic acid polymer layer, and a third metal layer deposited on the second metal primer layer. This metal-primed and metallized polylactic acid film exhibits improved moisture barrier properties versus a non-metal-primed and metallized polylactic acid film and can be used as part of a lamination structure for food packaging applications. | 02-18-2010 |
20100247886 | BIAXIALLY ORIENTED METALLIZED POLYLACTIC ACID FILM WITH HIGH METAL ADHESION AND HIGH BARRIER PROPERTIES - Metallized multi-layer biaxially oriented polylactic acid base polymer (BOPLA) films that exhibits improved barrier properties and metal adhesion. The films include a core layer including crystalline polylactic acid base polymer, a first skin layer consisting essentially of amorphous polylactic acid base polymer, and a metal layer on the first skin layer. The films may include a second skin layer consisting essentially of amorphous polylactic acid base polymer. | 09-30-2010 |
20100323196 | BIAXIALLY ORIENTED POLYLACTIC ACID FILM WITH IMPROVED HEAT SEAL PROPERTIES - Multi-layer biaxially oriented polylactic acid (BOPLA) film with a novel formulation improves the heat seal initiation temperature and heat seal performance of BOPLA films while maintaining good optical clarity. The film may include a core layer including polylactic acid base polymer resin, and a heat sealable layer including amorphous polylactic acid base polymer and a modifier comprising polycaprolactone or poly(butylene-adipate-co-butylene terephthalate). | 12-23-2010 |
20100330382 | BIAXIALLY ORIENTED POLYLACTIC ACID FILM WITH IMPROVED MOISTURE BARRIER - A biaxially oriented multilayer film comprising a skin layer of polyhydroxyalkanoate, a core layer of polylactic acid polymer and a sealant layer with a metal deposited upon one surface of the skin layer of polyhydroxyalkanoate polymer. This metallized, polyhydroxyalkanoate-coextruded polylactic acid film exhibits improved moisture barrier property versus a metallized, non-polyhydroxyalkanoate-coextruded polylactic acid film. | 12-30-2010 |
20110081543 | BIODEGRADABLE COMPOSITE BARRIER FILM - The present invention is directed to a multilayer film having, as its main component, a hydroxy acid polymer with improved gas barrier and optional heat sealability. The oriented film of predominately hydroxy acid polymer having controlled shrink can be produced by melting and coextruding a hydroxy acid polymer with a much thinner layer of an amorphous aromatic copolyester to form a multilayer film that is quench cooled, then biaxially stretched at a process temperature above the glass transition and below the cold crystallization temperature of the hydroxy acid polymer. A heat-setting treatment with a controlled relaxation of the film above the hydroxy acid polymer glass transition temperature and below its melt temperature may be used to control shrinkage. The films thus obtained are vacuum metallized on the aromatic copolyester surface to produce environmentally friendly packaging from predominately renewable resources having improved gas barrier properties. | 04-07-2011 |
20110171489 | MULTI-LAYER HIGH MOISTURE BARRIER POLYLACTIC ACID FILM - A laminate film including a first polylactic acid layer; a second metal-receiving layer including PVOH, EVOH, or a blend thereof on a side of the first polylactic acid layer; and a metal layer deposited on a side of the metal-receiving layer opposite the polylactic acid layer. The metal-receiving layer may be coextruded with the polylactic acid first layer or may be a coating applied to one side of the polylactic acid first layer. This laminate film exhibits excellent gas and moisture barrier properties, appearance, and metal adhesion. It may also include a heat sealable or winding improving layer on the side opposite the metal receiving-layer of the first polylactic acid layer. | 07-14-2011 |
20110244185 | BIAXIALLY ORIENTED POLYLACTIC ACID FILM WITH REDUCED NOISE LEVEL - Described are biaxially oriented polylactic acid (BOPLA) films with a novel formulation that exhibits a softer feel and quieter sound, without jeopardizing film making stability. The films can be used, for example, in packaging applications. The films can be metallized, or combined with barrier coatings or layers, for improved gas barrier properties particularly for moisture vapor transmission barrier desired in packaging applications. The films can also be printing films for packaging applications and may be transparent or matte in appearance. The films have characteristics that are beneficial to converting processes, are economical, and maintain bio-compostability similar to typical BOPLA films. | 10-06-2011 |
20110244186 | BIAXIALLY ORIENTED POLYLACTIC ACID FILM WITH REDUCED NOISE LEVEL AND IMPROVED MOISTURE BARRIER - Described are metallized biaxially oriented polylactic acid (BOPLA) films with a novel formulation that exhibits a softer feel and quieter sound, without jeopardizing film making stability. It has been found that when these films are metallized, moisture barrier properties are surprisingly improved compared to conventional metallized BOPLA films. Specifically, the moisture barrier of the films may be 2.0 g/m | 10-06-2011 |
20110274892 | BIAXIALLY ORIENTED BIO-BASED POLYOLEFIN FILMS AND LAMINATES - A laminate film including at least one bio-based polyolefin layer including at least 53 pMC of radiocarbon ( | 11-10-2011 |
20120128973 | METHOD TO PRODUCE MATTE AND OPAQUE BIAXIALLY ORIENTED POLYLACTIC ACID FILM - A biaxially oriented laminate film including a core layer including a blend of crystalline polylactic acid polymer and an inorganic antiblock particle which is biaxially oriented at low transverse direction orientation temperatures to impart a degree of cavitation around the particles such that a matte or opaque appearance is obtained. The laminate film may further have additional layers such as a heat sealable layer disposed on one side of the core layer including an amorphous polylactic acid resin and/or a polylactic acid resin-containing layer disposed on the side of the core layer opposite the heat sealable layer, a metal layer, or combinations thereof. | 05-24-2012 |
20120251749 | HEAT SEALABLE MONOAXIALLY ORIENTED PROPYLENE-BASED FILM WITH DIRECTIONAL TEAR - A monoaxially oriented film including an ethylene-propylene impact copolymer and 3-15 wt % of a metallocene-catalyzed propylene-butene elastomer and 30-60 wt % of a crystalline propylene homopolymer which is oriented at least 3 times in the machine direction and exhibits excellent linear directional tear properties in the machine direction for retort pouch applications and has excellent heat seal performance both pre- and post-retorting. This film formulation and orientation is suitable for pouch applications requiring an “easy-tear” linear tear feature and excellent hermetic seal properties, particularly for retort pouches. | 10-04-2012 |
20130011631 | BIAXIALLY ORIENTED BIO-BASED POLYESTER FILMS AND LAMINATES - A laminate film including at least one bio-based polyester layer. The polyester layer has a radiocarbon ( | 01-10-2013 |
20130344345 | BIAXIALLY ORIENTED BIO-BASED POLYESTER WINDOW FILMS AND LAMINATES - A bio-based polyester window film optionally including a a UV light absorbing layer including a bio-based polyester and a UV light absorber. The bio-based polyester window film has a radiocarbon content of at least 19 pMC. The film exhibits excellent clarity and light stability, substantially equivalent to petroleum-based counterparts, while being derived wholly or partly from non-petroleum sources. | 12-26-2013 |
20140004286 | LIGHTER THAN AIR BALLOONS FROM LAMINATES COMPRISING BIO-BASED POLYESTER FILMS AND BIO-BASED POLYETHYLENE FILMS | 01-02-2014 |
20140017489 | BIODEGRADABLE COMPOSITE BARRIER FILM - The present invention is directed to a multilayer film having, as its main component, a hydroxy acid polymer with improved gas barrier and optional heat sealability. The oriented film of predominately hydroxy acid polymer having controlled shrink can be produced by melting and coextruding a hydroxy acid polymer with a much thinner layer of an amorphous aromatic copolyester to form a multilayer film that is quench cooled, then biaxially stretched at a process temperature above the glass transition and below the cold crystallization temperature of the hydroxy acid polymer. A heat-setting treatment with a controlled relaxation of the film above the hydroxy acid polymer glass transition temperature and below its melt temperature may be used to control shrinkage. The films thus obtained are vacuum metallized on the aromatic copolyester surface to produce environmentally friendly packaging from predominately renewable resources having improved gas barrier properties. | 01-16-2014 |
20140065315 | BIAXIALLY ORIENTED BIO-BASED POLYOLEFIN FILM THAT HAS BEEN EXTRUSION COATED WITH BIO-BASED SEALANT FOR LIDDING APPLICATIONS - A lidding film including a polyester film including a bio-based polyester, and an extrusion coated heat seal layer including a bio-based polymer. The polyester film may include a biaxially oriented core layer including bio-based polyester and an amorphous copolyester skin layer. The heat seal layer may include a low density polyethylene. | 03-06-2014 |
20140065398 | BIAXIALLY ORIENTED BIO-BASED POLYOLEFIN FILM THAT HAS BEEN EXTRUSION COATED WITH BIO-BASED SEALANT FOR LIDDING APPLICATIONS - A lidding film including a polyester film including a bio-based polyester, and an extrusion coated heat seal layer including a bio-based polymer. The polyester film may include a biaxially oriented core layer including bio-based polyester and an amorphous copolyester skin layer. The heat seal layer may include a low density polyethylene. | 03-06-2014 |
20150037556 | BIAXIALLY ORIENTED MATTE POLYPROPYLENE FILM - A multi-layer biaxially oriented polypropylene (BOPP) film with a novel formulation which exhibits matte appearance is disclosed. This improved formulation comprises a blend of high density polyethylene (HDPE), medium density polyethylene (MDPE), low density polyethylene (LDPE) or linear low density polyethylene (LLDPE) with polypropylene (PP) used in the core layer to achieve a matte appearance low gloss PP-based film that still exhibits typical properties of BOPP films with significantly lower haze than conventional matte films. The multi-layer BOPP film has additional layers such as a second polyolefin resin-containing layer, a metal layer, or combinations thereof. | 02-05-2015 |