Patents Represented by Attorney, Agent or Law Firm Van Tassel & VandenHoff
  • Patent number: 6437080
    Abstract: Process for the preparation of a polymer composition comprising at least one aromatic or a mixture thereof, the process comprising: i) obtaining a reaction mixture comprising polymer precursors in a first fluid boiling in excess of 100 C.; ii) subjecting the reaction mixture to a first elevated temperature in excess of 100 C. to generate the alkali metal salts of polymer precursors and the polymer reaction products thereof; and iii) subjecting the reaction product mixture to at least a second temperature and isolating the reaction product in the form of a polymer composition which is substantially insoluble in a second fluid, form the first fluid which is substantially soluble in the second fluid, by contacting with an amount of second fluid; wherein the process is conducted in substantial absence of an effective amount of an azeotrope; novel intermediates thereof, polymer composition obtained thereby; resin formulation thereof; method for manufacture of composites thereof, and uses thereof.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: August 20, 2002
    Assignee: Cytec Technology Corp.
    Inventors: Patrick Terence McGrail, Jeffrey Thomas Carter