The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2008
Filed:
Apr. 27, 2004
Applicants:
Matthew S. Gebhard, New Britain, PA (US);
Patricia M. Lesko, Ottsville, PA (US);
Albert B. Brown, Buckingham, PA (US);
David H. Young, Ambler, PA (US);
Inventors:
Matthew S. Gebhard, New Britain, PA (US);
Patricia M. Lesko, Ottsville, PA (US);
Albert B. Brown, Buckingham, PA (US);
David H. Young, Ambler, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12N 11/04 (2006.01); C12N 11/08 (2006.01); B23B 9/04 (2006.01); C08F 2/00 (2006.01);
U.S. Cl.
CPC ...
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.