Patents by Inventor Donald M. Papuga

Donald M. Papuga 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).

  • Amino-terminated poly(aryl ether ketones)
    Patent number: 5137988
    Abstract: Described herein are novel amino-terminated poly(aryl ether ketone) oligomers and methods for their production. These amino-terminated poly(aryl ether ketone) oligomers are used as building blocks for a variety of polymers and copolymers.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: August 11, 1992
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Blends comprising poly(aryl ether ketone co-carbonates)
    Patent number: 4975470
    Abstract: Blends comprising from about 1 to about 99 percent by weight of a poly(aryl ether ketone co-carbonate) and from about 99 to about 1 percent by weight of a thermoplastic polymer selected from the group of a poly(aryl ether ketone), a poly(arylene sulfide), a poly(ether imide) or a poly(aryl ether).
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: December 4, 1990
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Barry D. Dean, Donald M. Papuga
  • Amino-terminated poly(aryl ether ketones)
    Patent number: 4959424
    Abstract: Described herein are novel amino-terminated poly(aryl ether ketone) oligomers and methods for their production. These amino-terminated poly(aryl ether ketone) oligomers are used as building blocks for a variety of polymers and copolymers.
    Type: Grant
    Filed: July 25, 1986
    Date of Patent: September 25, 1990
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Novel poly (etherimide) compositions
    Patent number: 4870155
    Abstract: Described herein are random poly(etherimide) containing ether-imide units and aryl ether and/or aryl ether ketone units. These copolymers are produced by the reaction of the appropriate activated dinitro- and/or dihalobenzenoid aromatic compounds with diphenols, and/or by the self condensation of halophenols and/or nitrophenols, whose halogen atom and nitro group are activated towards nucleophilic substitution reactions.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: September 26, 1989
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Paul A. Winslow, Donald M. Papuga
  • Novel poly(aryl ether ketone)-polyester block copolymers
    Patent number: 4837284
    Abstract: Described herein are novel block copolymers wherein one block is a poly(aryl ether ketone) oligomer and other block is a liquid crystalline polyester oligomer. Processes for the preparation of the subject copolymers are also described. The novel block copolymers display excellent mechanical properties, good high temperatures stability and excellent solvent and chemical resistance.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: June 6, 1989
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Copolymers of polyphenylene oxides and polyarylates
    Patent number: 4746709
    Abstract: Described are novel copolymers of polyphenylene oxides and polyarylates. These copolymers are readily compatible with styrene polymers and copolymers and give tough binary, ternary and quaternary blends.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: May 24, 1988
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Novel poly(aryl ether ketone) polyester block copolymers
    Patent number: 4668744
    Abstract: Described herein are novel block copolymers wherein one block is a poly(aryl ether ketone) oligomer and the other block is a liquid crystalline polyester oligomer. Processes for the preparation of the subject copolymers are also described. The novel block copolymers display excellent mechanical properties, good high temperatures stability and excellent solvent and chemical resistance.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: May 26, 1987
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Novel polyetherimides
    Patent number: 4642327
    Abstract: This invention relates to a novel class of polyetherimides. The subject polyetherimides display a unique combination of high temperature properties, toughness, and melt processability. They are suitable for molding, extrusion, and coating applications. They are also of interest as components of blends, as filled materials, and in composites.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: February 10, 1987
    Assignee: Amoco Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Novel poly(aryl ether)- polyester block copolymers
    Patent number: 4619975
    Abstract: Described herein are novel block copolymers wherein one block is a poly(aryl ether) oligomer and the other block is a liquid crystalline polyester oligomer. Processes for the preparation of the subject copolymers are also described. The novel block copolymers display excellent mechanical properties, good high temperature stability and excellent solvent and chemical resistance.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: October 28, 1986
    Assignee: Union Carbide Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Blends of a polyarylate and a poly(ester carbonate)
    Patent number: 4598130
    Abstract: Described herein are blends comprising a polyarylate and a poly(ester carbonate). These blends have improved light transmission, lower haze, and good mechanical properties.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: July 1, 1986
    Assignee: Union Carbide Corporation
    Inventors: Lloyd M. Robeson, Donald M. Papuga
  • Polyetherimides
    Patent number: 4540748
    Abstract: Described herein are novel polyetherimide produced by the reaction of a dianhydride and a diamine having a molecular weight .gtoreq.1500. These polyetherimides have good melt processability and a good combination of high temperature properties.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: September 10, 1985
    Assignee: Union Carbide Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Copolymers of polyphenylene oxides and poly(aryl ether)s
    Patent number: 4536543
    Abstract: Described are novel copolymers of polyphenylene oxides and poly(aryl ether)s. These copolymers are readily compatible with styrene polymers and copolymers and give tough blends.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: August 20, 1985
    Assignee: Union Carbide Corporation
    Inventors: Markus Matzner, Donald M. Papuga
  • Blends containing copolymers of polyphenylene oxides and poly(aryl ether)s
    Patent number: 4536544
    Abstract: Described are blends of block copolymers of polyphenylene oxides and poly(aryl ether)s, a styrene based polymer or copolymer, and a poly(aryl) ether) and/or a polyphenylene oxide.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: August 20, 1985
    Assignee: Union Carbide Corporation
    Inventors: Markus Matzner, Donald M. Papuga