Abstract:
Embodiments relate to a film comprising a base layer comprising a biaxially oriented polypropylene (BOPP); a coating layer comprising a polyester, an acrylic, and a crosslinker; and a primer; wherein the film has a haze change, measured according to ASTM D1003, before exposure to boiling water for 30 minutes and after exposure to boiling water for 30 minutes of 4 units or less.
Abstract:
Disclosed herein are physically crosslinked, closed cell continuous multilayer foam structures that include a coextruded foam layer containing at least one of polypropylene and polyethylene and a crosslinked, coextruded cap layer containing at least one of polypropylene and polyethylene. The multilayer foam structure can be obtained by coextruding a multilayer structure comprising at least one foam composition layer and at least one cap composition layer, irradiating the coextruded structure with ionizing radiation, and continuously foaming the irradiated structure.
Abstract:
Embodiments relates to a multilayer film comprising a core layer, a first outer layer and second outer layer. In an embodiment, the core layer includes a polypropylene; the first outer layer comprises (a) a polymethylpentene, (b) a butene copolymer, and (c) a polydimethylsiloxane and/or a crosslinked silicone; and the second outer layer comprises (a) a polymethylpentene, (b) a butene copolymer, and (c) a polydimethylsiloxane and/or a crosslinked silicone. Yet, another embodiment relates the core layer comprises polypropylene; the first outer layer comprises a mini random polypropylene resin, wherein the first outer layer comprises a first corona treated surface; and the second outer layer comprises a polymethylpentene copolymer, a crystalline polypropylene, a polydimethylsiloxane, a crosslinked silicone and/or a fluoropolymer.
Abstract:
Embodiments herein relate to a polymer film comprising an anti-blushing composition in a blend comprising polyethylene terephthalate (PET) and polybutylene terephthalate (PBT); wherein the blend contains at least 50 wt.% of PBT; wherein the anti-blushing composition comprises a phosphorus containing compound but excludes certain phosphorus compounds; and wherein the anti-blushing composition is configured to prevent blushing in the polymer film laminated directly to a metal substrate sheet and exposed to steam at a temperature of 260°F for 90 minutes.
Abstract:
Biaxially oriented film and metal laminate composite thereof useful for manufacturing food containers with good resistance to blushing during steam sterilization, comprising a blend of PBT and PET and also incorporating color pigment comprising polar functional groups. The films possess improve resistance to trans-esterification during melt processing, resulting in enhanced crystallinity levels present in the laminated film which leads to little or no blush discoloration during steam sterilization.
Abstract:
A balloon formed from a lamination. The lamination includes a first layer, a second layer, a graphic design and a third layer. The first layer including from about 10 to about 90 wt.% crystalline polyester and from about 10 to about 90 wt.% of a formability enhancer to assist in increasing the polymeric chain flexibility. The formability enhancer has a melting point less than about 230°C. The first layer has a MD and a TD Young's Modulus of at least 10% lower than a crystalline polyester film in the absence of the formability enhancer. The second layer is a metallic barrier layer. The graphic design is printed onto a surface of the metallic barrier layer. The third layer is a sealant layer. The first layer is located between the second and third layers. The balloon contains a gas lighter than air.
Abstract:
A composite barrier film has a base layer of polyester or polyolefin with a barrier layer of modified polyvinyl amine (mPVA). The mPVA is polyvinyl alcohol/polyvinyl amine copolymer crosslinked with citric acid and an optional additional crosslinking agent such as epichlorohydrin. The barrier layer can be applied by depositing a reactive aqueous solution onto the base layer, heating and drying to remove water and crosslink the reactants. Excellent barrier properties of the film are obtained by applying and crosslinking the barrier layer during the transverse stretching steps for continuously fabricating a biaxial oriented polymer film. Superior barrier properties are achieved with transverse stretching by a factor in the range of about 3-10 and depending upon whether the base layer is polyester or polyolefin.
Abstract:
This invention relates to an optically clear film of predominantly thermoplastic polyester base layer and a carbodiimide-crosslinked, polyester and polymethylmethacrylate blend primer layer. The base layer preferably has a particle-free core layer and outer layers containing nonpolyester, organic and/or inorganic particles. The primer layer is preferably applied to the base layer from solution that is organic solvent-free. The primer layer and base layer composite can be laminated with a protective layer of primarily acrylic polymer to form a solar control film. Functional additives, such as UV light blockers, can be present in various layers of the solar control film. Polymethylmethacrylate in the primer, especially in combination with crosslinking by the carbodiimide, provides the acrylic coated polyester base solar control film with notably reduced iridescence. Adhesion between the acrylic layer applied from organic solvent solutions and the polyester layers is durable in moist and warm service conditions.
Abstract:
Described are methods for producing biaxially oriented thermoplastic crystallizable films, such as polyester terephthalate (PET) films, that are easy to handle, have at least one surface that can produce high quality finishes in In-Mold Decoration processes (IMD), and have anti-static properties. The static dissipation properties of the film facilitate the manufacture of IMD parts by reducing buildup of debris in the mold and reducing the risk of fire during processing.
Abstract:
A polyolefin-based heat sealable and peelable lidding film. The peelable seal films comprise from 5 to 95 percent by weight of a polyolefin based plastomer or elastomer and from 5 to 95 percent by weight of a second plastomer or elastomer. The invention also relates to methods of making and using the heat sealable, peelable seal films, having improved low seal initiation temperature.