D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 17/01 (2006.01) B32B 5/18 (2006.01) B32B 5/26 (2006.01) D21H 11/14 (2006.01) D21H 13/40 (2006.01) D21H 21/16 (2006.01) D21H 17/16 (2006.01)
Patent
CA 2358627
A non-woven web such as a facer comprises recycled cellulose fiber; recycled glass fiber, and, a sizing agent which provides the mat with decreased liquid penetrability over time. An example suitable sizing agent is alkenyl succinic anhydride (ASA) which has a dry basis add-on rate of from about 0.15% to about 0.4%, and preferably a dry basis add-on rate of from about 0.2% to about 0.3%. The sizing agent provides the mat with decreased liquid penetrability four weeks after mat production. In one aspect of the invention, the mats/facers can be employed as a facer for a rigid cellular foam board.
Blanpied Robert H.
Burkeen Ricky
Bush Philip
Atlas Roofing Corporation
Marks & Clerk
LandOfFree
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