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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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. |
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