Patents Assigned to Associated Packaging Enterprises
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Publication number: 20050037168Abstract: A continuous process for making a thermoplastic article comprises extruding a sheet of thermoplastic and contacting the sheet with a mold surface while the sheet is in a substantially non-oriented state. The mold surface is selectively heated and/or cooled during thermoforming to maintain the sheet in a molten or thermoformable state. A stripper plate adjacent to the mold surface is maintained at different temperature for inducing a predetermined degree of crystallinity to the sheet, for increasing web stiffness and improving web alignment, and optionally for assisting in the separation of the articles from the mold. A continuous apparatus for making thermoformed articles has co-extruders for extruding at least two distinct layers, which can have dissimilar properties (e.g., polar and non-polar), and a temperature controlled molding surface. Preferred thermoplastic compositions of the present invention have improved toughness and retained intrinsic viscosity.Type: ApplicationFiled: July 26, 2004Publication date: February 17, 2005Applicant: Associated packaging enterprises, Inc.Inventor: Edward Dalgewicz
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Patent number: 6814905Abstract: A continuous process for making a thermoplastic article comprises extruding a sheet of thermoplastic and contacting the sheet with a mold surface while the sheet is in a substantially non-oriented state. The mold surface is selectively heated and/or cooled during thermoforming to maintain the sheet in a molten or thermoformable state. A stripper plate adjacent to the mold surface is maintained at different temperature for inducing a predetermined degree of crystallinity to the sheet, for increasing web stiffness and improving web alignment, and optionally for assisting in the separation of the articles from the mold. A continuous apparatus for making thermoformed articles has co-extruders for extruding at least two distinct layers, which can have dissimilar properties (e.g., polar and non-polar), and a temperature controlled molding surface. Preferred thermoplastic compositions of the present invention have improved toughness and retained intrinsic viscosity.Type: GrantFiled: November 28, 2000Date of Patent: November 9, 2004Assignee: Associated Packaging Enterprises, Inc.Inventors: Edward J. Dalgewicz, John Bond
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Patent number: 6773735Abstract: A thermoplastic container, which is particularly useful for packaging meat, comprises a first polymeric layer, a second intermediate or tie layer, and a third polymeric layer. The first layer comprises an alkylene terephthalate or naphthalate polymer such as polyethylene terephthalate (PET). The first layer can include, in whole or in part, one or more homo-polymers, co-polymers, recycled polymers, or reprocessed polymers. The third layer comprises a non-polar thermoplastic such as high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE), or a blend thereof. The intermediate layer primarily functions as an adhesive and as a compatibilizer/emulsifier/surfactant (CES), and comprises a grafted or backbone-based co-polymer or ter-polymer of ethylene, glycidyl acrylate or maleic anhydride, and optionally an acrylate co-monomer.Type: GrantFiled: November 28, 2000Date of Patent: August 10, 2004Assignee: Associated Packaging Enterprises, Inc.Inventor: Edward J. Dalgewicz, III
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Patent number: 6576309Abstract: Thermoplastic compositions comprising a bulk polymer, an additive, and a compatibilizer/emulsifier/surfactant (CES) are described. The bulk polymer comprises an alkylene terephthalate or naphthalate polyester such as polyethylene terephthalate. The additive comprises an amorphous or substantially amorphous co-polymer of ethylene and a co-monomer that forms polar portions, such as methacrylate, butylacrylate, ethyl acrylate, or ethylhexyl methacrylate. The CES comprises a co-polymer or ter-polymer of ethylene and a glycidyl acrylate or maleic anhydride, and optionally an acrylate such as methacrylate, ethylacrylate, propylacrylate, butylacrylate, ethylhexylacrylate, or mixtures thereof. The thermoplastic compositions of the present invention exhibit improved molding properties, high dimensional stability, high temperature resistance, and are particularly useful in food-grade applications such as dual-ovenable containers.Type: GrantFiled: December 2, 1999Date of Patent: June 10, 2003Assignee: Associated Packaging EnterprisesInventors: Edward J. Dalgewicz, III, John Bond
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Patent number: D602352Type: GrantFiled: April 7, 2008Date of Patent: October 20, 2009Assignee: Associated Packaging Enterprises, Inc.Inventors: William B. Pendergrass, Russell L. Baur
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Patent number: D618998Type: GrantFiled: June 15, 2009Date of Patent: July 6, 2010Assignee: Associated Packaging Enterprises, Inc.Inventors: William B. Pendergrass, Russell L. Bauer
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Patent number: D366211Type: GrantFiled: October 24, 1994Date of Patent: January 16, 1996Assignee: Associated Packaging Enterprises, Inc.Inventors: John C. Buff, Joseph C. Cruz