B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 13/02 (2006.01) B28B 19/00 (2006.01) B28B 23/00 (2006.01) B32B 5/06 (2006.01) B32B 5/08 (2006.01) B32B 13/00 (2006.01) B32B 13/14 (2006.01) D04H 1/00 (2006.01) D04H 3/00 (2006.01) D04H 13/00 (2006.01) E04C 2/04 (2006.01)
Patent
CA 2517606
A moisture-tolerant structural panel comprising a gypsum board which comprises a set gypsum core sandwiched between and faced with fibrous mats, wherein a free surface of one of said mats is pre-coated with a combination of a mineral pigment, optionally an inorganic adhesive binder and a hydrophobic, UV resistant polymer latex adhesive binder applied to said surface as an aqueous coating composition, said aqueous coating composition upon drying and setting, covering said mat to the extent that substantially none of the fibers of said mat can be seen portruding from said coating.
L'invention concerne un panneau de structure résistant à l'humidité. Ledit panneau comprend une plaque de plâtre qui comprend une âme de plâtre durci prise en sandwich entre et faisant face à des mats de fibres, une surface libre d'un desdits mats étant préalablement revêtue à l'aide d'une combinaison d'un pigment minéral, éventuellement d'un liant adhésif inorganique et d'un liant adhésif en latex polymère résistant aux UV, hydrophobe, appliquée sur ladite surface sous forme d'une composition de revêtement aqueuse, ladite composition de revêtement aqueuse, lors du séchage et du durcissement, recouvrant ledit mat de telle sorte que sensiblement aucune des fibres dudit mat ne fait saillie à partir dudit revêtement.
Randall Brian G.
Smith Russell S.
G-P Gypsum Corporation
Georgia-Pacific Gypsum Llc
Smart & Biggar
LandOfFree
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