Patents by Inventor George T. Kwiatkowski

George T. Kwiatkowski 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: 5159028
    Abstract: The invention describes a novel process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers). The process is comprised of the steps:(a) the reaction of a dihydroxy-terminated poly(aryl ether) oligomer with a high molecular weight polycarbonate, or a high molecular weight polyarylate, or a high molecular weight poly(arylate-carbonate) to yield a block copolymer; followed by(b) the coupling of the material obtained in step (a) to the required molecular weight, using a diaryl ester of carbonic acid or of a dicarboxylic acid.Both steps are performed in the presence of a catalyst. The copolymerizations can be run in bulk under vacuum in a single or twin screw extruder. Using the above conditions high molecular weight, high quality block copolymers having a combination of excellent properties are obtained in a matter of minutes.
    Type: Grant
    Filed: May 15, 1991
    Date of Patent: October 27, 1992
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, George T. Kwiatkowski, Robert A. Clendinning, Selvaraj Savariar, Mohammad J. El-Hibri, Charles N. Merriam, Robert J. Cotter
  • Patent number: 5077351
    Abstract: The invention describes a novel process for the preparation of polycarbonate and/or polyarylate block copolymers with poly(aryl ethers). The process is comprised of the steps:(a) the reaction of a dihydroxy-terminated poly(aryl ether) oligomer with a high molecular weight polycarbonate, or a high molecular weight polyarylate, or a high molecular weight poly(arylate-carbonate) to yield a block copolymer; followed by(b) the coupling of the material obtained in step (a) to the required molecular weight, using a diaryl ester of carbonic acid or of a dicarboxylic acid.Both steps are performed in the presence of a catalyst. The copolymerizations can be run in bulk under vacuum in a single or twin screw extruder. Using the above conditions high molecular weight, high quality block copolymers having a combination of excellent properties are obtained in a matter of minutes.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: December 31, 1991
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, George T. Kwiatkowski, Robert A. Clendinning, Selvaraj Savariar, Mohammad J. El-Hibri, Charles N. Merriam, Robert J. Cotter
  • Patent number: 5037936
    Abstract: Described are crystalline block copolymers displaying high glass transition temperatures, excellent mechanical properties, excellent chemical and thermal stability, and good melt processability. These block polymers contain segments of crystalline poly(aryl ether ketones).
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: August 6, 1991
    Assignee: Amoco Corporation
    Inventors: Robert A. Clendinning, James E. Harris, George T. Kwiatkowski, Lee P. McMaster, Markus Matzner, Paul A. Winslow
  • Patent number: 4977199
    Abstract: Photopolymerizable compositions, based on 2-methoxytetrahydropyran and 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexane carboxylate, which can be applied as coatings on substrates and photocured at high speeds.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: December 11, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Joseph V. Koleske, George T. Kwiatkowski
  • Patent number: 4874798
    Abstract: This invention is directed to photocopolymerizable compositions comprising an epoxide containing two or more epoxy groups, a poly (active hydrogen) organic compound, a photoinitiator and, as a reactive diluent, a substituted cycloaliphatic monoepoxide. The photocopolymerizable compositions have low viscosity and can be applied to suitable substrates by conventional methods and, after being cured to dry coating films, can have utility as automotive finishes, can finishes, appliance finishes, general metal finishes, adhesives, printing inks and the like.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: October 17, 1989
    Assignee: Union Carbide Corporation
    Inventors: Joseph V. Koleske, George T. Kwiatkowski
  • Patent number: 4870153
    Abstract: Described herein are novel poly(aryl ether) polymers that contain naphthalene, terephenylene and/or anthracenylene units within their chains. Representative polymers are tough materials having excellent high temperature, oxidative and chemical resistance, and easy melt fabricability.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: September 26, 1989
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, George T. Kwiatkowski, Lloyd M. Robeson
  • Patent number: 4861915
    Abstract: Described are crystalline block copolymers displaying high glass transition temperatures, excellent mechanical properties, excellent chemical and thermal stability, and good melt processability. These block polymers contain segments of crystalline poly(aryl ether ketones).
    Type: Grant
    Filed: March 29, 1988
    Date of Patent: August 29, 1989
    Assignee: Amoco Corporation
    Inventors: Robert A. Clendinning, James E. Harris, George T. Kwiatkowski, Lee P. McMaster, Markus Matzner, Paul A. Winslow
  • Patent number: 4849503
    Abstract: Described herein are novel poly(aryl ethers) based on 2,5-di-t-butylhydroquinone. These poly(aryl ethers) have excellent high temperature, oxidative and chemical resistance, as well as good melt-fabricability.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: July 18, 1989
    Assignee: Amoco Corporation
    Inventors: Robert J. Cotter, Stephen B. Rimsa, Robert Barclay, Jr., George T. Kwiatkowski, James E. Harris
  • Patent number: 4840978
    Abstract: Described herein are compositions suitable for photocopolymerization comprising a cyclic vinyl ether containing compound and an epoxide. These compositions can be cured to give coatings with improved flexibility and impact resistant properties.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: June 20, 1989
    Assignee: Union Carbide Corporation
    Inventors: Joseph V. Koleske, George T. Kwiatkowski
  • Patent number: 4812488
    Abstract: This invention is directed to photocopolymerizable compositions comprising a poly (active hydrogen) organic compound, a photoinitiator and, as a reactive diluent, a substituted cycloaliphatic monoepoxide. The photocopolymerizable compositions have low viscosity and can be applied to suitable substrates by conventional methods and, after curing, provide excellent pressure sensitive and heat-activated adhesive coatings.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: March 14, 1989
    Assignee: Union Carbide Corporation
    Inventors: Joseph V. Koleske, George T. Kwiatkowski
  • Patent number: 4786749
    Abstract: Lactone acrylates and organic anhydrides are condensed to form carboxyl-terminated lactone acrylates. These can be homopolymerized or copolymerized with ethylenically unsaturated monomers by means of radiation.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: November 22, 1988
    Assignee: Union Carbide Corporation
    Inventors: Joseph V. Koleske, George T. Kwiatkowski
  • Patent number: 4786694
    Abstract: Described are crystalline block copolymers displaying high glass transition temperatures, excellent mechanical properties, excellent chemical and thermal stability, and good melt processability. These block polymers contain segments of crystalline poly(aryl ether ketones).
    Type: Grant
    Filed: April 16, 1987
    Date of Patent: November 22, 1988
    Assignee: Amoco Corporation
    Inventors: Robert A. Clendinning, James E. Harris, George T. Kwiatkowski, Lee P. McMaster, Markus Matzner, Paul A. Winslow
  • Patent number: 4783520
    Abstract: The method of preparing a thermoplastic polyarylether polymer which comprises reacting a first monomer composition comprising an activated dihalobenzenoid compound and a dihydroxydiphenyl aliphatic monomer in a molar ratio of dihalobenzenoid compound to dihydroxybenzenoid compound of at least 1.2 to 1, adding to the product a second monomer composition comprising a dihydroxybenzenoid compound comprising at least one compound which is free of aliphatic moieties and polymerizing.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: November 8, 1988
    Assignee: Amoco Corporation
    Inventors: Donald R. Kelsey, Bernard Cooker, Robert A. Clendinning, Robert Barclay, Jr., George T. Kwiatkowski
  • Patent number: 4777235
    Abstract: The method of preparing a thermoplastic polyarylether polymer which comprises reacting a first monomer composition comprising an activated dihalobenzenoid compound and dihydroxybenzenoid composition comprising hydroquinone, adding to the product a second monomer composition comprising a dihydroxybenzenoid composition consisting essentially of Bis-(hydroxyphenyl) compounds in a concentration of at least 50 mole percent of the total Bis-(hydroxyphenyl) compounds added in the monomer compositions and polymerizing.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: October 11, 1988
    Assignee: Amoco Corporation
    Inventors: Donald R. Kelsey, Robert A. Clendinning, George T. Kwiatkowski
  • Patent number: 4767838
    Abstract: Described herein are novel crystalline chain extended poly(aryl ether ketones) which display excellent toughness, fabricability and very good high temperature and solvent resistance.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: August 30, 1988
    Assignee: Amoco Corporation
    Inventors: Robert A. Clendinning, George T. Kwiatkowski
  • Patent number: 4756862
    Abstract: Prosthetic devices, such as orthopedic, dental and maxillofacial prostheses, are provided which are composed of an inner load bearing, functional component and an outer foamed or sintered porous coating of selected bioengineering thermoplastics. The bioengineering thermoplastic coating is provided in regions where long-term bone fixation is desired by tissue ingrowth. The coatings offer substantial biomechanical advantages over any material system previously reported. Also provided, are anatomically shaped devices comprised totally of bioengineering thermoplastics with select porous areas; these devices include bone gap bridges, bone caps, and alveolar ridge augmentation implants.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: July 12, 1988
    Assignee: Amoco Corporation
    Inventors: Myron Spector, George T. Kwiatkowski, Walter H. Smarook, Michael J. Michno, Jr.
  • Patent number: 4687833
    Abstract: Described herein are novel crystalline chain extended poly(aryl ether ketones) which display excellent toughness, fabricability and very good high temperature and solvent resistance.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: August 18, 1987
    Assignee: Amoco Corporation
    Inventors: Robert A. Clendinning, George T. Kwiatkowski
  • Patent number: 4645781
    Abstract: Described herein are compositions suitable for photocopolymerization comprising a cyclic vinyl ether containing compound and an epoxide. These compositions can be cured to give coatings with improved flexibility and impact resistant properties.
    Type: Grant
    Filed: March 29, 1983
    Date of Patent: February 24, 1987
    Assignee: Union Carbide Corporation
    Inventors: Joseph V. Koleske, George T. Kwiatkowski
  • Patent number: 4579885
    Abstract: Described herein is a composition comprising a select group of substituted diamine hardeners and an expoxy resin containing two or more 1,2-epoxide groups per molecule. These compositions exhibit reduced moisture absorption, and controlled reactivity which comprises the processing characteristics of the composition.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: April 1, 1986
    Assignee: Union Carbide Corporation
    Inventors: Linda A. Domeier, Hugh C. Gardner, George T. Kwiatkowski
  • Patent number: 4555449
    Abstract: Described herein is a magnetic recording medium comprising a substrate and a magnetic recording layer thereon comprising a cured binder and magnetic particles, the binder containing a blend of a thermoplastic polymer or polymers and a polyfunctional acrylate derivatives of a caprolactone-polyol or a polyester polyol.
    Type: Grant
    Filed: February 9, 1984
    Date of Patent: November 26, 1985
    Assignee: Union Carbide Corporation
    Inventors: Joseph V. Koleske, Glenn S. Peacock, George T. Kwiatkowski