Patents by Inventor Lana S. Spencer

Lana S. Spencer 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).

  • Glass-filled propylene polymer composition
    Patent number: 7235606
    Abstract: Disclosed is a glass-filled coupled impact propylene copolymer composition having an improved combination of strength, stiffness, impact properties and melt strength; articles made therefrom; and a process to prepare said articles.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: June 26, 2007
    Assignee: Dow Global Technologies Inc.
    Inventors: Lana S. Spencer, Michael Plaver, Sam Crabtree
  • Mono(cyclobutarene)/polymaleimide copolymers
    Patent number: 5247037
    Abstract: Copolymers of a mono(cyclobutarene) comonomer and a polymaleimide comonomer are described. These copolymers have higher thermal stability and lower water absorption than polymaleimide homopolymers. They are useful in applications such as electronics, membranes, composities, coatings, and adhesives. Examples of such copolymers are those formed from the comonomers 1,1'-(methylenedi-4,1-phenylene)bismaleimide, and 3-(1-(4-methylphenyl)ethenyl)-bicyclo(4.2.0)octa-1,3,5-triene or 3-(2-(4-methylphenyl)ethenyl)-bicyclo(4.2.0)octa-1,3,5-triene.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: September 21, 1993
    Assignee: The Dow Chemical Company
    Inventors: Robert A. Kirchhoff, Lana S. Spencer, Kenneth J. Bruza