GYPSUM WALLBOARD

Gypsum wallboard can be made lighter and less dense, without sacrificing strength, by adding to the gypsum slurry used in making the boar d a styrene butadiene polymer latex substantially stable against divalent ions i n which the styrene butadiene polymer includes at least 0.25 wt.% of an ionic mon...

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Bibliographische Detailangaben
Hauptverfasser: ZORSKA, ROMAN, HARDY, PAUL A, WESTERMAN, I. JOHN
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:Gypsum wallboard can be made lighter and less dense, without sacrificing strength, by adding to the gypsum slurry used in making the boar d a styrene butadiene polymer latex substantially stable against divalent ions i n which the styrene butadiene polymer includes at least 0.25 wt.% of an ionic monomer.