Patents by Inventor Michael A. McLeod

Michael A. McLeod has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7892475
    Abstract: It has been discovered that the properties of sheet or film materials of broad molecular weight distribution ethylene/propylene rubber impact-modified heterophasic copolymer (ICP) can be improved by blending the ICP with a second polyolefin. The second polyolefin may be a syndiotactic polypropylene (sPP), a random copolymer (RCP) of propylene and comonomer (e.g. ethylene and/or butene) made using a Ziegler-Natta or metallocene catalyst, medium density polyethylene (MDPE), linear low density polyethylene (LLDPE), or low crystalline copolymer of propylene/?-olefin. Improvements include, but are not necessarily limited to, reduced motor amps, lower secant modulus, increased dart drop strength, increased gloss, reduced haze, increased elongation to yield, elimination of stress whitening, improved puncture resistance, and decreased seal initiation temperature. This sheet of film materials may be co-extruded with other resins or laminated with other materials after extrusion.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: February 22, 2011
    Assignee: Fina Technology, Inc.
    Inventors: Juan Jose Aguirre, Michael McLeod, Rodolfo Mier, Nguong van Nguyen
  • Publication number: 20100159173
    Abstract: Polymer articles and processes of forming the same are described herein. The processes generally include providing a bimodal ethylene based polymer, blending the bimodal ethylene based polymer with a nucleator to form modified polyethylene and forming the modified polyethylene into a polymer article, wherein the polymer article is selected from pipe articles and blown films.
    Type: Application
    Filed: April 7, 2009
    Publication date: June 24, 2010
    Applicant: Fina Technology, Inc.
    Inventors: John Ashbaugh, Brian B. Cole, David Rauscher, Gerhard Guenther, Michael McLeod, Ruby L. Curtis
  • Publication number: 20100129652
    Abstract: The present invention relates to polyethylene films, and to processes for making films. In particular the invention relates to solid state stretched films that may be monoaxially or biaxially oriented. The processes can tolerate high draw ratios and lower extrusion pressures and amperes while producing films having high tensile strength and modulus as well as low shrinkage. The polyethylene used to make the films has a density of from 0.940 to less than 0.960, a molecular weight distribution of greater than 10, a melt flow index ranging from 0.30 dg.min to 1.00 dg/min and a weight average molecular weight of 300,000 or less.
    Type: Application
    Filed: November 30, 2009
    Publication date: May 27, 2010
    Applicant: Fina Technology, Inc.
    Inventor: Michael McLeod
  • Publication number: 20100081767
    Abstract: Polymer articles and processes of forming the same are described herein. The processes generally include providing an ethylene based polymer, blending the ethylene based polymer with a modifier to form modified polyethylene and forming the modified polyethylene into a polymer article, wherein the polymer article exhibits a haze that is at least about 10% less than a polymer article prepared with a similarly modified polyethylene.
    Type: Application
    Filed: October 1, 2008
    Publication date: April 1, 2010
    Applicant: Fina Technology, Inc.
    Inventors: Michael McLeod, John Ashbaugh, Cyril Chevillard, Gerhard Guenthar, Ruby Curtis, Jay Nguyen, Juan Aguirre, Raleigh McBride, Ben Hicks
  • Publication number: 20090182185
    Abstract: The present invention provides a method and apparatus for removing acetylene from a gasoeus mixture comprising hydrogen, methane, ethane, ethylene, acetylene, propane, propylene, butane, butenes, butadiene, and other C4 or higher hydrocarbons. The method of the invention utilizes a front-end acetylene removal unit (“ARU”) located after a charge gas compressor in which acetylene is selectively reduced. The method of the invention achieves selective reduction of acetylene by using a proprietary Chevron Phillips E series palladium based catalyst. The method of the invention also utilizes a novel startup procedure, a novel emergency shutdown procedure, a novel maximum cool down procedure, and a novel carbon monoxide monitoring procedure.
    Type: Application
    Filed: March 27, 2009
    Publication date: July 16, 2009
    Applicant: Eastman Chemical Company
    Inventors: James Michael Jordan, Kevin Hunter McGuire, Daryl Bitting, Randall Lloyd Lamirand, James Joseph Cerrato, Ronnie Paul Pertuit, George Michael McLeod, Yao-Ching Liu
  • Publication number: 20090155614
    Abstract: A polypropylene material may be prepared from a blend of heterophasic propylene copolymers and propylene homopolymers. The material may be prepared by blending the polymers while they are in a molten state, and forming a film or sheet from the polymer blend. The materials may also be formed as coextruded materials or as ternary blends with a polyethylene or a single phase random propylene copolymer. The blends and neat polymers have particular application to forming slit film tapes and similar materials. The resultant materials may exhibit increased tenacity, elongation and toughness and greater surface roughness as compared to those materials prepared solely from propylene homopolymers.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 18, 2009
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Michael A. McLeod, John Ashbaugh, Michael Musgrave
  • Publication number: 20090101701
    Abstract: A plurality of cartons, preferably fabricated from paper, paperboard and/or corrugated paperboard, and particularly of tray or wrapper-style construction, are provided, having integral lid constructions, and outer overlap panels, operably associated with the at least one top panel, to enable articulation of the carton into a substantially completed structure, without interfering with the subsequent articulation of the at least one top panel to enable loading of the carton subsequent to articulation and affixation of the outer overlap panels.
    Type: Application
    Filed: November 7, 2008
    Publication date: April 23, 2009
    Inventor: Michael McLeod
  • Publication number: 20090035546
    Abstract: The present invention relates to polyethylene films, and to processes for making films. In particular the invention relates to solid state stretched films that may be monoaxially or biaxially oriented. The processes can tolerate high draw ratios and lower extrusion pressures and amperes while producing films having high tensile strength and modulus as well as low shrinkage. The polyethylene used to make the films has a density of from 0.940 to less than 0.960, a molecular weight distribution of greater than 10, a melt flow index ranging from 0.30 dg.min to 1.00 dg/min and a weight average molecular weight of 300,000 or less.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 5, 2009
    Applicant: FINA TECHNOLOGY, INC.
    Inventor: Michael McLeod
  • Patent number: 7484655
    Abstract: A plurality of cartons, preferably fabricated from paper, paperboard and/or corrugated paperboard, and particularly of tray or wrapper-style construction, are provided, having integral lid constructions, and outer overlap panels, operably associated with the at least one top panel, to enable articulation of the carton into a substantially completed structure, without interfering with the subsequent articulation of the at least one top panel to enable loading of the carton subsequent to articulation and affixation of the outer overlap panels.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: February 3, 2009
    Assignee: Smurfit-Stone Container Enterprises, Inc.
    Inventor: Michael McLeod
  • Patent number: 7451878
    Abstract: A shipping container for facilitating the conversion of the shipping container into a dispensing or all-around display container from formed an outer blank (10) having a centrally positioned bottom wall (12), front and rear walls (18, 26), top panels (32, 38), side flaps (14, 16, 22, 24, 28, 30, 34, 36, 40, 42) and an interior divider structure (50) for structural stacking support both during shipping and display modes.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: November 18, 2008
    Assignee: Smurfit-Stone Container Enterprises, Inc.
    Inventors: Oscar Rochefort, Michael McLeod
  • Publication number: 20080118692
    Abstract: Applicants have discovered that certain polyethylene (PE) homopolymers or copolymers of ethylene and C3 to C10 alpha-olefin monomers are more suitable for oriented processes than other polyethylene resins In an aspect, the PE has a MFI of 0.3 g/10 min. to 5.0 g/10 min., a melting point of from 110° C. to 140° C., a density of from 0.912 g/cm3 to 0.965 g/cm3(%), a haze of 10% or less, a clarity of at least 90, and a gloss of at least 60. The polyethylene is heated and formed into an article, cooled, and then the article is stretch oriented. In an embodiment, the film, tape, the melt extruded, injection blow molded, injection stretch blow molded, cast, and thermoformed articles that can be produced with this polyethylene has a thickness of 0.1 mil to 100 mils. The polyethylene exhibits excellent elasticity, toughness, stretch and optical properties for such applications.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 22, 2008
    Applicant: FINA TECHNOLOGY, INC.
    Inventors: Michael McLeod, Gerhard Guenther, Shannon B. Hoesing
  • Publication number: 20080067224
    Abstract: Containers of the wraparound and tray style are provided, having enhanced stacking strength and general robustness, through the provision of internal and external reinforcing panels and flanges. Variations of the basic invention are provided with closure flaps of varying configuration and placement; end walls and minor flaps with angled side edges to provide for containers having inclined sides; regions of weakness, removable portions of panels and/or preformed apertures to permit conversion of the containers to display/merchandising modes; gusseted corner structures to provide for containment of fluent materials; and enhanced transverse support structures.
    Type: Application
    Filed: November 20, 2007
    Publication date: March 20, 2008
    Inventors: Oscar Rochefort, Michael McLeod
  • Publication number: 20080061468
    Abstract: A method of processing a high ethylene random copolymer comprising nucleating a high ethylene random copolymer to form a high ethylene polymeric composition, melting and extruding a high ethylene polymeric composition, spinning a high ethylene polymeric composition to form a fiber, cooling the fiber, guiding the fiber with an aspirator, and recovering the fiber.
    Type: Application
    Filed: September 7, 2006
    Publication date: March 13, 2008
    Inventors: Frank Li, John Ashbaugh, Wyman Stephens, Michael A. McLeod
  • Publication number: 20080057295
    Abstract: This invention relates to engraved boards that are suitable for use in displays and exhibits including all types of signage, frames and artistic representations. The board is composed of at least two layers. One layer is made essentially entirely of, or includes, high impact polystyrene foam. The other layer can be made of, or include, any thermoplastic polymer.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 6, 2008
    Inventors: Kenneth S. Laverdure, Michael McLeod
  • Publication number: 20080057294
    Abstract: This invention relates to tiles that are suitable directly for use in flooring, on bathroom and other walls, kitchen and bath countertops, table tops etc. The tile is composed of at least two layers. One layer is made essentially entirely of, or includes, high impact polystyrene foam. The other layer can be made of, or include, any thermoplastic polymer.
    Type: Application
    Filed: September 1, 2006
    Publication date: March 6, 2008
    Inventors: Kenneth S. Laverdure, Michael McLeod
  • Publication number: 20070235896
    Abstract: A biaxially oriented polypropylene film having a 1% secant modulus of from 500 MPa to 5000 MPa and a shrinkage greater than or equal to 9%. A method of producing a biaxially oriented film comprising providing a metallocene catalyzed polypropylene homopolymer, casting said polypropylene homopolymer into a film, stretching said film on a batch line, at a temperature of 120° C. to 140° C. or stretching said film in the machine direction on a continuous line at a temperature of from 90° C. to 160° C., and stretching said film in the transverse direction on a continuous line at a temperature of from 130° C. to 180° C.
    Type: Application
    Filed: April 6, 2006
    Publication date: October 11, 2007
    Inventors: Michael McLeod, David Smith
  • Publication number: 20070194095
    Abstract: A container for packaging a product includes a blank of sheet material having an interior surface and an opposing exterior surface. The container has a bottom panel, opposing side walls and opposing end walls constructed to define a cavity. At least one end wall is movable between an open configuration and a closed configuration.
    Type: Application
    Filed: February 22, 2006
    Publication date: August 23, 2007
    Inventors: David Brundage, Michael McLeod
  • Publication number: 20070116911
    Abstract: A film having a seal strength of at least 100 grams force/inch and a seal initiation temperature of less than about 100 ° C. A polymeric composition comprising a metallocene catalyzed random ethylene-propylene copolymer and a propylene/alpha olefin copolymer or ethylene/alpha olefin copolymer. An article comprised of a film having a seal strength of at least 100 grams force/inch and a seal initiation temperature of less than about 100 ° C.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 24, 2007
    Inventors: Mark Miller, Juan Aguirre, David Turner, Michael McLeod, David Young
  • Publication number: 20070045894
    Abstract: Process for producing an oriented polyolefin film using a multi-component polymer composition provided by a primary polymer component comprising an isotactic propylene homopolymer produced by the polymerization of propylene in the presence of a Ziegler-Natta catalyst and a secondary polymer component comprising a metallocene polymerized isotactic propylene polymer having a xylene solubles content which is less than that of the primary polymer component. The secondary polymer component is a propylene homopolymer or an ethylene-propylene random copolymer having an ethylene content of about 0.5 wt. % or less. The polymer components are separately co-extruded to form a multilayer co-extrudate in which the primary polymer component is present in an amount greater than the secondary polymer component. The multilayer co-extrudate is oriented in at least one direction to form an oriented film.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 1, 2007
    Inventor: Michael McLeod
  • Publication number: 20060231603
    Abstract: Shipping containers having stacking support structures are provided. The shipping containers or cartons, are provided with three-panel inner support structures, in which the three panels form either triangular- (delta-) shaped cross-sections or L shaped cross-sections. In addition, the shipping containers or cartons, are provided with first outer support panels, and one or two second outer support panels. The shipping containers or cartons may be provided with no lid, one lid panel with closure panels for affixation to the end panels, or two lid panels, each with closure panels for affixation to the end panels.
    Type: Application
    Filed: June 9, 2005
    Publication date: October 19, 2006
    Inventor: Michael McLeod