Patents by Inventor Albert B. Brown

Albert B. Brown 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 producing porous polymer films
    Patent number: 7422879
    Abstract: Porous films are provided which include a blend of a film forming polymer and a non-film forming material, the film having a network of pores or channels throughout the film. The porous polymer films are formed between 0° and 80° C., retain porosity at elevated temperatures and are non-friable. A process for preparing porous polymer films and their applications are disclosed.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: September 9, 2008
    Assignee: Rohm and Haas Company
    Inventors: Matthew S. Gebhard, Patricia M. Lesko, Albert B. Brown, David H. Young
  • Porous films and process
    Publication number: 20040197387
    Abstract: Porous films are provided which include a blend of a film forming polymer and a non-film forming material, the film having a network of pores or channels throughout the film. The porous polymer films are formed between 0° and 80° C., retain porosity at elevated temperatures and are non-friable. A process for preparing porous polymer films and their applications are disclosed.
    Type: Application
    Filed: April 27, 2004
    Publication date: October 7, 2004
    Inventors: Matthew S. Gebhard, Patricia M. Lesko, Albert B. Brown, David H. Young
  • Porous non-friable polymer film
    Patent number: 6750050
    Abstract: Porous films are provided which include a blend of a film forming polymer and a non-film forming material, the film having a network of pores or channels throughout the film. The porous polymer films are formed between 0° and 80° C. retain porosity at elevated temperatures and are non-friable. A process for preparing porous polymer films and their applications are disclosed.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: June 15, 2004
    Assignee: Rohm and Haas Company
    Inventors: Matthew S. Gebhard, Patricia M. Lesko, Albert B. Brown, David H. Young
  • Porous films and process
    Publication number: 20020071867
    Abstract: Porous films are provided which include a blend of a film forming polymer and a non-film forming material, the film having a network of pores or channels throughout the film. The porous polymer films are formed between 0° and 80° C., retain porosity at elevated temperatures and are non-friable. A process for preparing porous polymer films and their applications are disclosed.
    Type: Application
    Filed: September 27, 2001
    Publication date: June 13, 2002
    Inventors: Matthew S. Gebhard, Patricia M. Lesko, Albert B. Brown, David H. Young
  • Polymers comprising alkali-insoluble core/alkali-soluble shell and copositions thereof
    Patent number: 4916171
    Abstract: Disclosed herein are core-shell polymers having an alkali-insoluble, emulsion polymer core and an alkali-soluble, emulsion polymer shell attached or associated with said core so that upon dissolving said shell with alkali, a portion of said shell remains attached or associated with said core. Also disclosed are compositions wherein said shell polymer has been neutralized and substantially, but not totally, dissolved so as to form a blend of neutralized core-shell polymer and an aqueous solution of neutralized shell polymer.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: April 10, 1990
    Assignee: Rohm and Haas Company
    Inventors: Albert B. Brown, Paul H. Gehlhaus, William H. Harrop, Dennis P. Lorah, Thomas G. Madle, Travis E. Stevens, Ted Tysak, Constance A. Lane