Patents by Inventor Buu N. Dao

Buu N. Dao 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).

  • Epoxy resins based on macrocyclic compounds
    Patent number: 5439989
    Abstract: Macrocyclic epoxy resins comprising at least one compound of the formula (I) ##STR1## wherein n is an integer from 3 to 10.R.sup.1 and R.sup.3 are either the same or different and are selected from hydrogen, hydroxyl, alkoxy, allyloxy and epoxypropyloxy (glycidyloxy);R.sup.2 is selected from hydrogen, arylakalkyl optionally substituted with halogen, alkyl optionally substituted with halogen, and aryl optionally substituted with halogen;R.sup.4 is selected from hydrogen, alkyl optionally substituted with halogen, arylalkyl optionally substituted with alkyl or halogen, and aryl optionally substituted with halogen;R.sup.5 is selected from hydrogen, aryl and alkyl; with the proviso that the resin contains on average at least one epoxy group per molecule.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: August 8, 1995
    Assignee: Commonwealth Scientific & Industrial Research Organisation
    Inventors: Trevor C. Morton, Jonathan H. Hodgkin, Buu N. Dao