Patents by Inventor Edmond P. Woo

Edmond P. Woo 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).

  • Process for forming arylether polymers
    Patent number: 4794155
    Abstract: A moiety with the formula:A-X-Ar.sup.1 -O-Ar.sup.2reacts in the presence of a catalyst with a moiety of the formula:B-Ar.sup.3 -O-Yto form a linkage of the formula:A-X-Ar.sup.1 -O-Ar.sup.3 -B+Ar.sup.2 -O-Ywherein Ar.sup.1, Ar.sup.2 and Ar.sup.3 are aromatic moieties, X is an activating group, Y is a hydrogen, a trihydrocarbylsilyl, a trihydrocarbyltin, or a carbonyl moiety, and the catalyst is a catalyst capable of abstracting the group Y from the second moiety. The reaction can be used to create a polyarylether polymer.
    Type: Grant
    Filed: August 26, 1987
    Date of Patent: December 27, 1988
    Assignee: The Dow Chemical Company
    Inventors: Edmond P. Woo, Hendrik E. Tuinstra, Michael J. Mullins