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:
Oct. 09, 2012
Filed:
Dec. 07, 2009
Gregory K. Jones, Lebanon, OH (US);
Larry Hughey Mcamish, Marietta, GA (US);
Pai-chuan Wu, Cincinnati, OH (US);
Kenneth L. Lilly, Johnson City, TN (US);
Christopher Aaron Shelley, Lebanon, OH (US);
Mark Andrew Wendorf, Crown Point, IN (US);
Gregory K. Jones, Lebanon, OH (US);
Larry Hughey McAmish, Marietta, GA (US);
Pai-Chuan Wu, Cincinnati, OH (US);
Kenneth L. Lilly, Johnson City, TN (US);
Christopher Aaron Shelley, Lebanon, OH (US);
Mark Andrew Wendorf, Crown Point, IN (US);
Clopay Plastic Products Company, Inc., Mason, OH (US);
Abstract
Embodiments of a breathable multilayer microporous film comprise a first outer film layer, a second inner film layer, and a third outer film layer, wherein each film layer comprises at least one pore-forming filler and one thermoplastic polymer. Each film layer is rendered microporous and breathable by stretching each film layer having the pore-forming filler therein, wherein the first and third outer film layers have first and third maximum pore sizes, respectively, and the second inner film layer has a second maximum pore size different than the respective maximum pore sizes of the first and third outer film layers of the multilayer film. The multilayer microporous film passes ASTM F 1671-03 test.