Patents by Inventor Paul J. Mayska

Paul J. Mayska 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).

  • Aromatic ethers
    Patent number: 5105004
    Abstract: The new aromatic ethers of the formulae ##STR1## can be used for the preparation of plastics which, in turn, can be processed further to give moulded articles, films, foils and filaments. The plastics prepared from the new aromatic ethers are distinguished by exceptional dimensional stability under heat.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: April 14, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Knud Reuter, Dieter Freitag, Gunther Weymans, Rolf Dhein, Paul J. Mayska, Karsten-Josef Idel, Volker Eckhardt, Uwe Westeppe
  • Process for the production of bifunctional OH-terminated polyphenylene oxides with dipolar aprotic solvent
    Patent number: 5021543
    Abstract: The invention relates to a new process for the production of bifunctional polyphenylene oxides bearing OH groups as functional groups at both ends of the chain.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: June 4, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul J. Mayska, Volker Eckhardt, Dieter Freitag, Karsten-Josef Idel
  • End capped thermally stable polyphenylene oxide (PPO)
    Patent number: 4981919
    Abstract: This invention relates to a new thermally stable polyphenylene oxide (PPO) and to its use as thermoplastic material.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: January 1, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul J. Mayska, Ludwig Bottenbruch, Hans-Rudolf Dicke
  • Process for holding and foaming thermoplastic polyphenylene sulphide articles and the resultant products
    Patent number: 4804689
    Abstract: The present invention relates to a process for molding a foamed article comprising mixing a polyphenylene sulfide resin with about 0.1 to 10% of an oligomeric sulfone carbonate as a foaming agent and with 0.1 to 2% of a basic catalyst at a temperature of about 150.degree. to 180.degree. C. and then heating the resulting mixture at a temperature of 280.degree.-350.degree. C. to affect a reaction mixture and introducing the reaction mixture into a suitable mold for producing a foamed article.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: February 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul J. Mayska, Erhard Tresper
  • Process for the preparation of polyether-sulphones
    Patent number: 4775738
    Abstract: The present invention relates to the preparation of polyether-sulphones from polycarbonates.
    Type: Grant
    Filed: August 27, 1986
    Date of Patent: October 4, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul J. Mayska, Erhard Tresper
  • Polyphosphates and the production thereof
    Patent number: 4482693
    Abstract: This invention relates to new polyphosphates, and to the production and use thereof.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: November 13, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Volker Serini, Paul J. Mayska, Hans-Dieter Block, Dieter Freitag