Gypsum wallboard

Gypsum wallboard

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

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WESTERMAN, IRA JOHN, HARDY, PAUL A, ZORSKA, ROMAN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ARTIFICIAL STONE
BUILDING
BUILDING MATERIALS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FIXED CONSTRUCTIONS
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
STRUCTURAL ELEMENTS
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:Gypsum wallboard can be made lighter and less dense, without sacrificing strength, by adding to the gypsum slurry used in making the board a styrene butadiene polymer latex substantially stable against divalent ions in which the styrene butadiene polymer includes at least 0.25 wt.% of an ionic monomer.