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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.:

US 10919283 B1

PDFFull Text
Date of Patent:
Feb. 16, 2021

Filed:

Sep. 24, 2015

Barrier layers on sealing membranes

Applicant:

Sika Technology Ag, Baar, CH;

Inventors:

Stefan Keiser, Schwarzenberg, CH;

Yannic Pironato, Sachseln, CH;

Assignee:

SIKA TECHNOLOGY AG, Baar, CH;

Attorney:

Oliff PLC

Primary Examiner:

Prashant J Khatri

Assistant Examiner:

Zachary M Davis

Int. Cl.
CPC ...
B32B 7/02 (2019.01); B32B 37/15 (2006.01); B32B 7/12 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 27/30 (2006.01); B32B 5/02 (2006.01); B32B 27/20 (2006.01); B32B 27/18 (2006.01); B32B 27/12 (2006.01); B32B 27/34 (2006.01); B32B 27/10 (2006.01); B32B 27/08 (2006.01); B32B 7/06 (2019.01); B32B 37/06 (2006.01); B32B 37/12 (2006.01);
U.S. Cl.
CPC ...
B32B 37/15 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/10 (2013.01); B32B 27/12 (2013.01); B32B 27/18 (2013.01); B32B 27/20 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 37/06 (2013.01); B32B 37/12 (2013.01); B32B 27/327 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0276 (2013.01); B32B 2270/00 (2013.01); B32B 2307/748 (2013.01); B32B 2309/105 (2013.01); B32B 2419/00 (2013.01);
Abstract

A sealing membrane including: a) a thermoplastic polyolefin membrane and b) a barrier film including b1) a barrier layer including at least one polymer selected from ethylene-vinyl alcohol copolymer, polyamide or polyester and b2) an outer layer, wherein the barrier film is laminated over the full surface area or over part of the surface area onto the polyolefin membrane, and so the outer layer is connected directly to the polyolefin membrane, and the outer layer and the polyolefin membrane are both ethylene-based or the outer layer and the polyolefin membrane are both propylene-based. The sealing membrane can be produced at low cost and has a stable interconnecting bond. It is suitable in particular for sealing in building construction or civil engineering work.

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