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:
Jun. 24, 2008
Filed:
Jul. 03, 2002
Applicants:
Mathias Muth, Wiesbaden, DE;
Joachim Bauer, Seuzach, CH;
Henning Roettger, Braunschweig, DE;
Inventors:
Assignee:
Fiberweb Corovin GmbH, Peine, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a perforated thermoplastic structure comprising at least a first layer () and a plurality of perforations, which extend through the first layer (). The perforations have a three-dimensional, preferably approximately conical or cylindrical shape (). A second layer forms an inner surface () of the shape (), whereas the first layer forms an outer surface () of the shape (). The first layer contains a thermoplastic material, whose melting point is lower than a melting point of the thermoplastic material of the second layer.