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. 15, 2022
Filed:
Sep. 25, 2019
Ewald Dörken Ag, Herdecke, DE;
Thomas Bachon, Düsseldorf, DE;
EWALD DÖRKEN AG, Herdecke, DE;
Abstract
The invention relates to a composite film (), preferably intended for use in the construction industry and/or preferably for use as a construction film, having at least one functional layer (), at least one outer protective layer () and at least one inner protective layer (), the functional layer () being arranged between the outer protective layer () and the inner protective layer (). According to the invention, it is provided that the functional layer () is formed as at least a single-layer membrane layer, that the outer protective layer () and the inner protective layer () are formed as a nonwoven layer comprising a polyolefin, and that the outer protective layer () and/or the inner protective layer () comprises at least one bicomponent fiber () having a first component () and a second component (), the first component () comprising a first polymer and the second component () comprising a second polymer as constituent.