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:
Aug. 01, 2017
Filed:
Feb. 27, 2013
Applicant:
Saint-gobain Isover, Courbevoie, FR;
Inventors:
Devang Khariwala, Marlborough, MA (US);
Valerio Massara, Redavalle, IT;
Assignee:
SAINT-GOBAIN ISOVER, Courbevoie, FR;
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/22 (2006.01); E04B 1/66 (2006.01); C08L 77/06 (2006.01); E04B 1/62 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01); B01D 71/56 (2006.01);
U.S. Cl.
CPC ...
E04B 1/665 (2013.01); B01D 53/228 (2013.01); B01D 67/002 (2013.01); B01D 69/12 (2013.01); B01D 71/56 (2013.01); C08L 77/06 (2013.01); E04B 1/625 (2013.01); B01D 2323/08 (2013.01); B01D 2325/00 (2013.01);
Abstract
The invention relates to a vapor retarder membrane, intended to be used for improving the airtightness of a building or of a room, comprising at least one active layer having a water vapor permeability which increases with the surrounding relative humidity, said active layer comprising at least 90% by weight of a blend of ethylene/vinyl alcohol (EVOH) copolymer and of a copolyamide 6-6.6 (PA666), the latter having a melting point below 210° C.