Static structures (e.g. – buildings) – Composite prefabricated panel including adjunctive means – Perforate panel having separate attached – elongated edging...
Patent
1992-11-10
1994-04-26
Friedman, Carl D.
Static structures (e.g., buildings)
Composite prefabricated panel including adjunctive means
Perforate panel having separate attached, elongated edging...
52232, 5230917, 52455, 4285377, 428218, E05D 700
Patent
active
053055772
ABSTRACT:
Fire-resistant structures are provided having at least a 20 minute ASTM E-152 fire test rating. The structures include a core having a gypsum-containing composition and a density of at least about 60 lbs/ft, a flexural strength of at least 30 lbs (1/2 inch thick material), and a screw-holding capacity of at least about 400 lbs. The gypsum-containing composition further contains a substantially uniform distribution of solids including about 65 wt. % to about 90 wt. % set gypsum dihydrate, about 7 wt. % to about 30 wt. % paper fiber, and about 1.5 wt. % to about 35 wt. % of one or more performance boosters selected from inorganic fiber, clay, vermiculate, and binder polymer.
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Fowler George F.
Francis Hubert C.
Richards Turner W.
Friedman Carl D.
Georgia-Pacific Corporation
Wood Wynn E.
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