Patents by Inventor Jan Jach

Jan Jach 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).

  • Method for manufacturing crosslinked polyetherester resins
    Patent number: 4293685
    Abstract: The invention relates to a method for producing crosslinked polyetherester resins having high heat resistance and mechanical strength, high flexibility and elongation.The aim of the invention is introducing long-chain polyether blocks of the following formula[O--CHR--(CH.sub.2).sub.m --CH.sub.2 ].sub.n .whereR=H, CH.sub.3, or C.sub.2 H.sub.5, n=2-15 and, m=0-4into the chains of polyesters obtained by the reaction of acids or anhydrides, in particular the Diels-Alder adduct of maleic anhydride with 2-naphthol.
    Type: Grant
    Filed: October 25, 1979
    Date of Patent: October 6, 1981
    Assignee: Polska Akademia Nauk Zaklad Polimerow
    Inventors: Zbigniew Jedlinski, Bogdan Thomalla, Antoni Kotas, Stanislaw Jedlinski, Wladyslaw Pilat, Jan Jach