Patents by Inventor Alan F. Burmester

Alan F. Burmester 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).

  • Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
    Patent number: 5837032
    Abstract: This invention relates to a method of an apparatus and method for separating component gases in a gas mixture employing a glassy polymer membrane at temperatures at or slightly above the freezing point of any liquid present so as to achieve superior separator of gas components. The composition of certain monomers and polymers are claimed.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: November 17, 1998
    Assignee: The Cynara Company
    Inventors: David J. Moll, Alan F. Burmester, Thomas C. Young, Kent B. McReynolds, James E. Clark, Charles Z. Hotz, Ritchie A. Wessling, George J. Quarderer, Ronald M. Lacher, Thomas O. Jeanes, Henry N. Beck, Stephen E. Bales, Bethanne L. Smith
  • Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
    Patent number: 5679133
    Abstract: This invention relates to a method of and apparatus for separating component gases in a gas mixture employing a glassy polymer membrane at temperatures of 5.degree. C. or less so as to achieve superior separation of gas components.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: October 21, 1997
    Assignee: Dow Chemical Co.
    Inventors: David J. Moll, Alan F. Burmester, Thomas C. Young, Kent B. McReynolds, James E. Clark, Charles Z. Hotz, Ritchie A. Wessling, George J. Quarderer, Ronald M. Lacher, Stephen E. Bales, Henry Nelson Beck, Thomas O. Jeanes, Bethanne L. Smith
  • Gas separations utilizing glassy polymer membranes at sub-ambient temperatures
    Patent number: 5352272
    Abstract: This invention relates to a method of and apparatus for separating component gases in a gas mixture employing a glassy polymer membrane at temperatures of 5.degree. C. or less so as to achieve superior separation of gas components.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: October 4, 1994
    Assignee: The Dow Chemical Company
    Inventors: David J. Moll, Alan F. Burmester, Thomas C. Young, Kent B. McReynolds, James E. Clark, Charles Z. Hotz, Ritchie A. Wessling, George J. Quarderer, Ronald M. Lacher, Stephen E. Bales, Henry N. Beck, Thomas O. Jeanes, Bethanne L. Smith
  • Porous filter media and membrane support means
    Patent number: 4904385
    Abstract: A method for filtering liquid or gaseous materials where the filtration is conducted with a porous filter media prepared from an aqueous wet-laid, lofted fiber-reinforced composite sheet, the composite sheet comprising a heat fusible polymer, reinforcing fibers and a binder. The random fiber composite sheet can be selectively lofted or recompressed to form filter media having variable porosity. Also, a membrane support means prepared by applying or treating the fiber-reinforced composite sheet with a discriminating membrane layer.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: February 27, 1990
    Assignee: The Dow Chemical Company
    Inventors: Ritchie A. Wessling, Larry D. Yats, Alan F. Burmester
  • Microporous membranes of syndiotactic vinylaromatic polymers
    Patent number: 4859339
    Abstract: Microporous, asymmetric membranes comprising syndiotactic vinylaromatic polymers having utility as membranes for ultrafiltration or reverse osmosis and a process for their production.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: August 22, 1989
    Assignee: The Dow Chemical Company
    Inventors: Ritchie A. Wessling, Chieh-Chun Chau, Alan F. Burmester
  • In-mold polymerization of vinyl aromatic compound
    Patent number: 4666987
    Abstract: A process for in mold polymerization and a composition for use therein comprising a polymerizable vinyl aromatic monomer and a particulated, semicrystalline nonmiscible polymer.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: May 19, 1987
    Assignee: The Dow Chemical Company
    Inventors: Alan F. Burmester, John S. Trent
  • Method of forming blanks for the solid-phase forming of thermoplastic articles
    Patent number: 4510108
    Abstract: An improved, essentially scrap-free, solid-phase process for making thermoplastic articles directly from resinous powder. The process can be particularly advantageous to forming large parts from thermoplastic resinous powders. The method essentially comprises taking resinous powder, briquetting the powder, sintering the briquette, repressing the powder in a warm state and then shaping the briquette into a preform or a blank which can then be thermoformed into a resulting container or other product, assuming the blank itself is not the desired end product. Alternatively, sintering can take place after repressing with preheating of the briquette prior to the repressing step.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: April 9, 1985
    Assignee: The Dow Chemical Company
    Inventors: Kenneth J. Cleereman, O. Carl Raspor, Alan F. Burmester