USE OF PRE-COATED MAT FOR PREPARING GYPSUM BOARD
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United States of America Patent
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app pub date -
May 17, 2010
filing date -
Mar 12, 2004
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Abandoned
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Abstract
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 an organic binder, preferably 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 providing a pre-coated mat satisfying certain morphology requirements.
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