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:
Apr. 07, 2020
Filed:
Jan. 26, 2016
Applicant:
Constantia Pirk Gmbh & Co. KG, Pirk, DE;
Inventors:
Assignee:
Constantia Pirk GmbH & Co. KG, Pirk, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D 65/40 (2006.01); B32B 27/32 (2006.01); B32B 3/30 (2006.01); C08J 5/18 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); B65D 75/04 (2006.01); F04B 39/00 (2006.01); F04B 39/12 (2006.01);
U.S. Cl.
CPC ...
B65D 65/40 (2013.01); B32B 3/30 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B65D 75/04 (2013.01); C08J 5/18 (2013.01); F04B 39/0027 (2013.01); F04B 39/0044 (2013.01); F04B 39/127 (2013.01); B32B 2307/31 (2013.01); B32B 2307/746 (2013.01); B32B 2581/00 (2013.01); C08J 2323/04 (2013.01); C08J 2323/06 (2013.01);
Abstract
In order to improve the sealing properties and the sliding properties of a sealing film, it is provided that surface structures are provided on a first side of the sealing film, wherein the largest thickness of the sealing film is at least 10% greater than the smallest thickness of the sealing film, and the largest lateral extension of the surface structures is smaller than 500 μm and a slip additive is added to the sealing film in an amount that yields an S-value of less than 10,000, and preferably less than 5,000.