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:
Nov. 18, 2014
Filed:
Apr. 20, 2011
Applicants:
Detlef Busch, Saarlouis, DE;
Bertram Schmitz, Sarreguemines, FR;
Dominic Klein, Bexbach, DE;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/18 (2006.01); B32B 3/26 (2006.01); B32B 27/32 (2006.01); B29D 7/00 (2006.01); C08J 5/18 (2006.01); C08L 23/12 (2006.01); B29C 55/14 (2006.01); B29C 55/00 (2006.01); C08K 5/098 (2006.01); H01G 9/02 (2006.01); H01G 9/00 (2006.01); B29K 23/00 (2006.01); B29K 105/04 (2006.01); B29K 105/16 (2006.01); H01M 2/14 (2006.01); H01M 10/052 (2010.01); H01M 2/16 (2006.01);
U.S. Cl.
CPC ...
B29C 55/143 (2013.01); B29K 2023/12 (2013.01); C08L 2205/24 (2013.01); C08J 5/18 (2013.01); C08L 2205/242 (2013.01); B29K 2105/04 (2013.01); Y02E 60/12 (2013.01); C08L 23/12 (2013.01); B29K 2105/16 (2013.01); Y02E 60/13 (2013.01); H01M 2/145 (2013.01); B29C 55/005 (2013.01); C08K 5/098 (2013.01); C08L 2203/16 (2013.01); H01G 9/02 (2013.01); C08J 2323/10 (2013.01); H01G 9/155 (2013.01); H01M 10/052 (2013.01); H01M 2/1686 (2013.01); H01M 2/1653 (2013.01);
Abstract
The invention relates to a biaxially oriented single- or multilayer porous foil, the porosity of which is generated by transformation of ss-crystalline polypropylene during orientation of the foil. The Gurley value of the foil is <250 s. The invention also relates to a process for producing the foil by using a low transverse stretching velocity for the transverse orientation process.