Patents Represented by Attorney Dennis M. Kozak

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  • Water absorbing polymer compositions and articles prepared therefrom
    Patent number: 4743244
    Abstract: A polymer composition which is water-absorbent upon curing comprising: (a) a copolymer containing from about 25 to about 75 mole percent recurring units of at least one .alpha.,.beta.-unsaturated monomer bearing at least one pendant unit selected from the group consisting of a carboxylic acid unit, a carboxylic acid salt unit, a carboxylic acid anhydride unit, a carboxylic acid imide unit, a carboxylic acid amide unit and a carboxylic acid ester unit and from about 75 to about 25 mole percent recurring units of a copolymerizable monomer; and, (b) a polyether derived from C.sub.2 to C.sub.10 alkylene oxides, wherein from about 20 to about 65 percent of the total pendant units introduced through the .alpha.,.beta.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: May 10, 1988
    Assignee: Arco Chemical Company
    Inventor: Bi LeKhac
  • Automotive trim panel
    Patent number: 4741945
    Abstract: The acoustical performance of automotive trim panels is improved, especially with respect to noise generated by structural vibration of an automobile and synchronous vibration of the trim panel itself, by positioning a dead, vibration-damping, foam material between the automobile frame and a semi-flexible support layer of the trim panel, the trim panel also including an open-celled, flexible, airborne sound-absorbing foam layer bonded to the opposing face of the support layer, and wherein the dead foam material has a substantially lower resilience value and a substantially higher recovery rate than the open-celled foam layer.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: May 3, 1988
    Assignee: Arco Chemical Company
    Inventors: Angela L. Brant, Ahid D. Nashif
  • Molding composition with enhanced weld-line strength
    Patent number: 4740555
    Abstract: A moldable composition produced by incorporating a macromonomer/alkyl acrylate/glycidyl methacrylate terpolymer into a blend of polycarbonate and a styrenic copolymer is disclosed. The macromonomer/alkyl acrylate/glycidyl methacrylate terpolymer is effective in enhancing the weld-line strength of the molded composition.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: April 26, 1988
    Assignee: ARCO Chemical Company
    Inventors: Barry D. Dean, Kathleen A. Geddes
  • Extended shelf life water-absorbing composition which facilitates fiber formation
    Patent number: 4731067
    Abstract: A copolymer of recurring units of at least one .alpha., .beta.-unsaturated monomer and recurring units of at least one copolymerizable comonomer comprising, in its preferred embodiment from about 20 to about 80 percent pendant carboxylic acid units and from about 80 to about 20 percent pendant carboxylate salt units, is blended with at least one monomer containing at least two hydroxyl groups to produce a water-absorbing composition upon curing. The composition is particularly suitable for fiber formation.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: March 15, 1988
    Assignee: ARCO Chemical Company
    Inventor: Bi Le-Khac
  • Diels-Alder graft polymers
    Patent number: 4731418
    Abstract: Graft polymers between glassy polymers and elastomeric polymers prepared using Diels-Alder chemistry are disclosed.
    Type: Grant
    Filed: September 2, 1986
    Date of Patent: March 15, 1988
    Assignee: ARCO Chemical Company
    Inventor: Barry D. Dean
  • Purification of polyols prepared using double metal cyanide complex catalysts
    Patent number: 4721818
    Abstract: A method for removing double metal cyanide complex catalyst residue from polyols using alkali metal hydrides is disclosed. In one embodiment, the catalyst residue is converted into an insoluble ionic metal species and separated by filtration using magnesium or aluminum silicate to facilitate separation.
    Type: Grant
    Filed: March 20, 1987
    Date of Patent: January 26, 1988
    Assignee: Atlantic Richfield Company
    Inventors: Stephen D. Harper, Stephen H. Harris
  • Polymer polyol dispersion from .alpha.,.beta. ethylenically unsaturated dicarboxylic acid anhydrides
    Patent number: 4721733
    Abstract: Stable, fluid polymer polyols made by the free radical polymerization of a monomer mixture of an .alpha.,.beta.-ethylenically unsaturated dicarboxylic acid anhydride and a copolymerizable monomer in an organic polyol medium of secondary hydroxyl terminated polyol are disclosed. In one embodiment, the polymer polyols form stable, acrylonitrile-free dispersions.
    Type: Grant
    Filed: March 9, 1987
    Date of Patent: January 26, 1988
    Assignee: Atlantic Richfield Company
    Inventors: Robert G. Gastinger, John E. Hayes
  • Foam cups with enhanced coffee retention
    Patent number: 4720429
    Abstract: Enhanced coffee retention properties are achieved in thermoplastic polymer foam cups molded from thermoplastic polymer particles by coating at least a portion of the surfaces of the particles before molding with a fluorosurfactant.
    Type: Grant
    Filed: May 15, 1987
    Date of Patent: January 19, 1988
    Assignee: Atlantic Richfield Company
    Inventor: Fred M. Sonnenberg
  • Methylmethacrylate/phenylmaleimide copolymer and styrene/maleic anhydride copolymer containing polymer alloys
    Patent number: 4720525
    Abstract: Polymer alloys containing copolymers of methylmethacrylate/N-phenylmaleimide are disclosed. In one embodiment the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride. In another embodiment, the polymer alloy is an alloy of methylmethacrylate/N-phenylmaleimide and styrene/maleic anhydride/N-phenylmaleimide.
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: January 19, 1988
    Assignee: Atlantic Richfield Company
    Inventor: Barry D. Dean
  • Flame-retardant molded composition which incorporates a poly(styrene-co-maleic anhydride-co-dibromostyrene) copolymer
    Patent number: 4711941
    Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer, a thermoplastic resin, preferably polycarbonate and a flame retardant synergist is disclosed. The molded composition exhibits at least a 94 V-1 classification when tested in accordance with Underwriters Laboratories Inc. Test Method UL94.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: December 8, 1987
    Assignee: Atlantic Richfield Co.
    Inventor: Usama E. Younes
  • Water absorbent polymer composition
    Patent number: 4705773
    Abstract: Water-insoluble, water swellable polymer compositions are disclosed. In one embodiment, the polymer composition comprises a copolymer of styrene and meleic anhydride and a multi arm block copolymer of styrene and ethylene oxide. In a preferred embodiment, the maleic anhydride groups of the anhydride-containing copolymer are treated with a strong base to further enhance absorption capacity.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: November 10, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Bi Le-Khac
  • Foam cups with enhanced coffee retention
    Patent number: 4703065
    Abstract: Enhanced coffee retention properties are achieved in thermoplastic polymer foam cups molded from thermoplastic polymer particles by coating at least a portion of the surfaces of the particles before molding with a fluorosurfactant.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: October 27, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Fred M. Sonnenberg
  • Impact modifier for imide containing copolymers
    Patent number: 4703085
    Abstract: An A-B-A triblock copolymer particularly suitable for use as an impact modifier for thermoplastic molding compositions containing an imide containing copolymer is disclosed. Molded compositions of the invention exhibit excellent impact strength and heat resistance and are transparent.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: October 27, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Barry D. Dean
  • Acrylic modified N-arylmaleimide copolymer molding composition
    Patent number: 4701493
    Abstract: An acrylic modified styrenic/N-arylmaleimide copolymer containing composition which exhibits excellent melt flow properties, impact strength and gloss upon molding is disclosed.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: October 20, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Barry D. Dean
  • Modified acrylic polymers
    Patent number: 4696978
    Abstract: An extrudable acrylic composition which incorporates an interpolymer produced by the polymerization of methyl methacrylate monomer, an N-substituted maleimide monomer, an alkyl acrylate monomer, and a difunctional reactive monomer is disclosed.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: September 29, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Barry D. Dean
  • Polymeric molding composition containing styrenic copolymer, polycarbonate and MBS polymer
    Patent number: 4696972
    Abstract: A polymeric molding composition containing a polycarbonate resin, a styrenic copolymer and a methylmethacrylate-butadiene-styrene polymer is disclosed. The molding compositions of this invention exhibit excellent impact strength and can be molded over a wide range of processing conditions.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: September 29, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland
  • Flame-retardant molded composition which incorporates a poly(styrene-CO-N-phenylmaleimide-CO-dibromostyrene) copolymer
    Patent number: 4684692
    Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriters' Laboratories Inc. Test Method UL94.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: August 4, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Usama E. Younes
  • Composition comprising a matrix resin, a flame retarding synergist, and an alternating copolymer of brominated styrene and N-brominated phenyl maleimide
    Patent number: 4683084
    Abstract: A flame retarding additive comprising an alternating copolymer of a brominated styrene and N-brominated phenylmaleimide, is blended with a matrix resin to produce molding compositions which when molded exhibit improved flame retarding characteristics. The flame retarding additives of this invention also exhibit non-blooming characteristics.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: July 28, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Usama E. Younes
  • Flame-retardant molded composition which incorporates a poly(styrene-co-N-phenylmaleimide-co-dibromostyrene) copolymer
    Patent number: 4668750
    Abstract: A moldable composition which comprises a novel random bromostyrene-containing copolymer and a flame-retardant synergist is disclosed. The molded composition exhibits at least a 94V-1 classification when tested in accordance with Underwriters' Laboratories Inc. Test Method UL94.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: May 26, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Usama E. Younes
  • Processing additive for vinyl compounds
    Patent number: 4665118
    Abstract: A vinyl molding compound having a high melt flow rate propylene-based polymer and calcium stearate incorporated thereinto exhibits reduced processing energy upon molding.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: May 12, 1987
    Assignee: Atlantic Richfield Company
    Inventor: Larry G. Bourland