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:
Jan. 19, 2016
Filed:
Jan. 28, 2011
Applicants:
Achim Grefenstein, Altrip, DE;
Florian Brandmaier, Kolbenmoor, DE;
Leonhard Maier, Babensham, DE;
Inventors:
Assignee:
RKW SE, Frankenthal, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 27/32 (2006.01); B29C 43/22 (2006.01); B29C 59/04 (2006.01); B29K 23/00 (2006.01); B32B 37/15 (2006.01); B32B 38/06 (2006.01);
U.S. Cl.
CPC ...
B29C 43/222 (2013.01); B32B 27/32 (2013.01); B29C 59/04 (2013.01); B29K 2023/06 (2013.01); B29K 2023/12 (2013.01); B32B 37/153 (2013.01); B32B 38/06 (2013.01); B32B 2323/04 (2013.01); B32B 2323/10 (2013.01); B32B 2553/00 (2013.01); Y10T 428/24967 (2015.01); Y10T 428/31913 (2015.04);
Abstract
The present invention relates to a film and a method for the production thereof, wherein a starting film web comprising at least one layer having a polypropylene content of at least 45% by weight and a polyethylene content in the same layer or in a further layer is produced, the starting film web is heated to the molten state of the polyethylene, yet to below the molten state of the polypropylene and the heated starting film web is passed through a cooled roller nip.