Patents Represented by Attorney James P. O'Sullivan

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  • Thermoplastic bag and thermoplastic bag pack
    Patent number: 4554192
    Abstract: A bag structure of a thermoplastic film material comprising front and rear bag walls connected by side walls and having an open mouth top portion, said open mouth portion being characterized by having handles located at opposite end regions thereof, said handles being of two films as a result of being integral extensions of said front, rear and gusseted side walls; said bag having a bottom wall planarly extensible so as to form a rectangle with at least no substantial excess film outside of the bulk volumetric capacity of said bottom region of said bag.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: November 19, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Gordon L. Benoit
  • Polymer foam, thermoformed shapes thereof and methods of forming same
    Patent number: 4535100
    Abstract: A foam structure having a density of less than about 20 lbs/ft.sup.3. The method of forming the same comprising forming a homogeneous melt blend under pressure of a polymer member selected from the group consisting of polyetherimide resin particles, polycarbonate resin particles, a polymer blend of polyphenylene oxide and polystyrene in particle form imbibed with a blowing agent, followed by extrusion of the same into a lower pressure atmosphere. A composition comprising said particles imbibed with methylene chloride, chloroform, 1,1,2-trichloroethane or mixtures thereof. A method of thermoforming said foam in sheet form.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: August 13, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Charles M. Krutchen, Wen-Pao Wu
  • Expansible polymer molding process and the resultant product
    Patent number: 4532263
    Abstract: A method for forming a molded polymer foam structure comprising expanding solvent imbibed polymer particles selected from the group consisting of a polyetherimide, a polycarbonate and a polyphenylene oxide-polystyrene blend and fusing the expanded particles together in a mold.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: July 30, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Charles M. Krutchen, Wen-Pao Wu
  • Thermoplastic foam molding
    Patent number: 4532094
    Abstract: A method for forming a molded thermoplastic foam structure comprising partially filling a mold with solvent imbibed particles of a thermoplastic resin, pressurizing said mold under conditions such as to prevent vaporization of said blowing agent during subsequent polymer melting, heating said polymer to a flowable state, releasing the mold pressure to permit foaming of the melt and expansion of the foamed polymer within the mold.
    Type: Grant
    Filed: December 12, 1983
    Date of Patent: July 30, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Wen-Pao Wu, Charles M. Krutchen
  • One-sided cling stretch wrap
    Patent number: 4518654
    Abstract: A stretch wrap film having one sided cling comprising a thermoplastic A/B film structure wherein layer A in stretched condition has a comparatively high cling force to layer B and layer B has at least substantially no cling force to a layer of itself.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: May 21, 1985
    Assignee: Mobil Oil Corporation
    Inventors: George N. Eichbauer, Beth A. LeBlanc
  • Low cost, brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails
    Patent number: 4515701
    Abstract: Novel sulfonate and sulfate surfactants which have low interfacial tension at high salinity, and their use in enhanced oil recovery are disclosed. These surfactants may be made from relatively inexpensive intermediates, such as monohydric alcohols and epichlorohydrin. These surfactants have 1,3-dihydrocarboxy-2-propyl hydrophobic tails linked by ethoxy linkages to sulfate or alkyl sulfonate moieties.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: May 7, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Dennis H. Hoskin
  • Block and stringer type lift truck pallet
    Patent number: 4509432
    Abstract: Fork lift truck pallet having a load deck of a plastic stretch wrap film wrapped with tension about a pallet frame.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: April 9, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Michael M. Win
  • Oriented polypropylene with linear low density poly-ethylene copolymer coating
    Patent number: 4505969
    Abstract: The present invention relates to heat sealable laminar thermoplastic films which may be heat sealed over a wide range of temperatures. The resultant heat seals exhibit a high heat seal strength. Such laminar structures comprise at least two layers of thermoplastic film, one of the layers being an oriented base layer and the other layer a heat sealable skin layer. Preferably the base layer is an alpha olefin such as polypropylene or copolymers thereof and the skin layer is preferably a linear, low-density polyethylene copolymer, comprising ethylene which has been copolymerized with another alpha olefin in the presence of a stereospecific catalyst.
    Type: Grant
    Filed: February 9, 1982
    Date of Patent: March 19, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Milton L. Weiner
  • Opaque oriented non-thermoplastic polymer film and method of forming same
    Patent number: 4496620
    Abstract: An opaque oriented non-thermoplastic polymer film containing opacifying voids which opacifying voids contain rigid microspheres therein. The method of preparing such an opaque oriented non-thermoplastic film by incorporating rigid microspheres within the non-thermoplastic polymer forming a film thereof and orienting the same to create opacifying voids therein.
    Type: Grant
    Filed: November 25, 1983
    Date of Patent: January 29, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Hee C. Park, Charles R. Ashcraft
  • Method of making an oriented multilayer heat sealable packaging film
    Patent number: 4495027
    Abstract: An oriented multilayer heat sealable film structure comprising a polyolefin film substrate, a layer of a random copolymer of ethylene and propylene, a primer layer on said copolymer layer and a layer of heat sealable vinylidene chloride polymer on said primer layer. The method of preparing said structure includes aging said structure at a temperature and for a time resulting in increased heat seal strength.
    Type: Grant
    Filed: February 3, 1984
    Date of Patent: January 22, 1985
    Assignee: Mobil Oil Corporation
    Inventors: John R. Wagner, Jr., Carl C. Hein
  • Thermoplastic bag and bag pack
    Patent number: 4493419
    Abstract: A bag pack of a plurality of stacked thermoplastic bag structures each bag comprising a front and rear bag wall and an open mouth top portion. Handles are integral extensions of the bag walls. The bags are bonded together via bonding means in association with said handles. Individual bags may have stress relief curves in the handles and the bag mouth opening.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: January 15, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Randolph D. Prader, Gordon L. Benoit, Robert T. Maddock
  • Method of sealing laminar thermoplastic films and bags
    Patent number: 4488924
    Abstract: A heat sealable film laminate having a first layer of a major amount of a high density polyolefin, a minor proportion of an adhesion promoting ionomer and a heat seal promoting proportion of a metal salt of a fatty acid; and a second layer adhering to the first layer, said layer comprising a polyamide. A food storage and heating bag formed from said laminate and a method of heat sealing said laminate.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: December 18, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Donald J. Krieg
  • Method of forming crosslinked styrenic polymer articles and the articles
    Patent number: 4489020
    Abstract: A microwave energy treated cross-linked styrenic polymer shaped article and method of forming the same.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: December 18, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Daniel J. Dibiasi
  • Polymer foam thermoformation process and apparatus therefor
    Patent number: 4485059
    Abstract: A method of thermoforming comprising providing a continuous sheet of thermoplastic polymeric foam, transporting said sheet through an atmosphere of at least predominantly steam at a temperature of at least 215.degree. F. maintaining said sheet in said atmosphere for a time sufficient to cause a decrease in the density thereof; thereafter while under the influence of said temperature, deforming at least a portion of said sheet to a predetermined shape and while so deformed, cooling the same to cause retention of said shape and a system for carrying out said method.
    Type: Grant
    Filed: April 28, 1983
    Date of Patent: November 27, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Charles M. Krutchen, Wen-Pao Wu
  • Thermoplastic bag pack
    Patent number: 4476979
    Abstract: A bag pack and individual bags characterized by having handles which are integral extensions of the front and rear of said bag. The bags have a bag mouth which includes stress relief curves on both sides of an upwardly extending tab. The tab includes at least one orifice which is positioned to create comparatively narrow webs which serve to be the tear-off points severing individual bags from the pack. The bags are bonded together via said tab at areas adjacent said orifice.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: October 16, 1984
    Assignee: Mobil Oil Corporation
    Inventors: George J. Reimann, Gordon L. Benoit, James R. Gavin, Michael A. Schneider
  • Process for preparing a poly(p-methylstyrene) foam
    Patent number: 4476077
    Abstract: A process for preparing a poly(p-methylstyrene) polymer foam including extruding a poly(p-methylstyrene) foam structure from a melt at a temperature which will yield an open cell percentage less than that formed in general purpose polystyrene foamed under the same general conditions. It also includes performing the extrusion from a melt at a rate which will yield a foam structure at least comparable to that of general purpose polystyrene foam, wherein the extrusion rate is greater than the extrusion rate for said polystyrene foam.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: October 9, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Edward M. Bullard, Daniel J. DiBiasi, Frank J. Feeney
  • Carton loader
    Patent number: 4472923
    Abstract: A novel method and apparatus is disclosed for the loading of a carton with a full complement of plastic bags and a cardboard insert. A plunger descends and contacts an insert which, in turn, forces a stack of plastic bags into an empty carton disposed directly below. A pair of intermeshing rollers are also provided to further guide the bags into the carton. Both gusseted and non-gusseted bags can easily be loaded pursuant to the teachings of the present invention.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: September 25, 1984
    Assignee: Mobil Oil Corporation
    Inventor: F. John Herrington
  • System and process for simultaneously orienting the films of a film laminate
    Patent number: 4472330
    Abstract: A method and system are disclosed for orienting a multilayer polymeric film structure by differentially heating different film layers thereof by dielectric heating and then molecular orienting the film layers at their respective optimal orientation temperatures.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: September 18, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Charles R. Ashcraft
  • Branched alkylpolyethoxypropane sulfonates and their use in enhanced oil recovery
    Patent number: 4468335
    Abstract: Novel branched alkylpolyethoxypropane sulfonate surfactants which have low interfacial tension at high salinity, and their use in enhanced oil recovery are disclosed. The surfactants have the formulaRO(C.sub.2 H.sub.4).sub.x CH.sub.2 CH.sub.2 CH.sub.2 SO.sub.3 Nain which R is a branched aliphatic radical of 10 to 30 carbon atoms, and x is 2 to 6.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: August 28, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Catherine S. H. Chen, Albert L. Williams
  • Method of preparing a thermoplastic bag having reinforced handles
    Patent number: 4464157
    Abstract: The present invention relates to thermoplastic bag structures which are characterized by having a pair of carrying handles formed integrally with the bag walls and extending upwardly from opposite sides of the open mouth portion of the bag. Specifically, such handled bags are particularly characterized in having reinforced handle members where the handles comprise at least two layers of thermoplastic material, one of the layers imparting tensile strength to the individual layer and the other layer particularly employed to provide the requisite puncture and tear resistance necessary in such a bag structure.
    Type: Grant
    Filed: January 11, 1984
    Date of Patent: August 7, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Gordon L. Benoit, Jack J. Donaldson, Paul D. Heilman