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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 12012352 B1

PDFFull Text
Date of Patent:
Jun. 18, 2024

Filed:

Oct. 06, 2015

Mat and gypsum boards suitable for wet or humid areas

Applicant:

Ahlstrom Oyj, Helsinki, FI;

Inventors:

Emmanuel Faynot, Vif, FR;

Marc Berlioz, Froges, FR;

Samuel Merlet, Vaulnaveys-le-Haut, FR;

Claude Leclercq, Pernes les Fontaines, FR;

Assignee:

AHLSTROM OYJ, Helsinki, FI;

Attorney:

CANTOR COLBURN LLP

Primary Examiner:

John Vincent Lawler

Int. Cl.
CPC ...
C03C 13/00 (2006.01); B32B 5/02 (2006.01); B32B 5/08 (2006.01); B32B 5/22 (2006.01); B32B 5/24 (2006.01); B32B 5/26 (2006.01); B32B 7/12 (2006.01); B32B 13/00 (2006.01); B32B 13/14 (2006.01); C03C 13/06 (2006.01); C04B 28/14 (2006.01); D04H 1/00 (2006.01); D04H 1/587 (2012.01); D04H 13/00 (2006.01); D21H 11/00 (2006.01); D21H 11/12 (2006.01); D21H 13/00 (2006.01); D21H 13/14 (2006.01); D21H 13/24 (2006.01); D21H 13/26 (2006.01); D21H 17/33 (2006.01); D21H 17/37 (2006.01); E04C 2/04 (2006.01); C03C 25/1025 (2018.01); C03C 25/28 (2018.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C03C 13/00 (2013.01); B32B 5/022 (2013.01); B32B 5/08 (2013.01); B32B 5/22 (2013.01); B32B 5/24 (2013.01); B32B 5/26 (2013.01); B32B 7/12 (2013.01); B32B 13/00 (2013.01); B32B 13/14 (2013.01); C03C 13/06 (2013.01); C04B 28/14 (2013.01); D04H 1/00 (2013.01); D04H 1/587 (2013.01); D04H 13/00 (2013.01); D21H 11/00 (2013.01); D21H 11/12 (2013.01); D21H 13/00 (2013.01); D21H 13/14 (2013.01); D21H 13/24 (2013.01); D21H 13/26 (2013.01); D21H 17/33 (2013.01); D21H 17/37 (2013.01); E04C 2/04 (2013.01); E04C 2/043 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0261 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/04 (2013.01); B32B 2262/06 (2013.01); B32B 2262/062 (2013.01); B32B 2262/065 (2013.01); B32B 2262/067 (2013.01); B32B 2262/10 (2013.01); B32B 2262/101 (2013.01); B32B 2262/14 (2013.01); B32B 2307/538 (2013.01); B32B 2307/546 (2013.01); B32B 2307/718 (2013.01); B32B 2419/00 (2013.01); C03C 25/103 (2013.01); C03C 25/28 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/00629 (2013.01);
Abstract

The invention relates to a fibrous mat facer for preparing a gypsum board, to a gypsum board comprising said mat facer and to a system comprising said gypsum board. The fibrous mat comprises at least one ply of a non-woven fabric, and a binder composition, wherein the binder composition represents from 10 to 40 wt % of the total weight of the mat. The binder composition comprises a copolymer comprising a co-monomer unit of a vinyl ester of an alpha branched aliphatic monocarboxylic acid, said copolymer being present in an amount from 25 to 100 wt % of the binder composition weight.

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