Large lightweight gypsum article and a process for the productio

Details Large lightweight gypsum article and a process for the productio Large lightweight gypsum article and a process for the productio

1975-05-20

1977-04-19

Douglas, Winston A.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

106109, 106110, 106111, D04H 1300

Patent

active

040189635

ABSTRACT:
A large lightweight gypsum article comprising anhydrous or hemihydrous gypsum, ettringite, reinforcing members, and, if necessary, fibers and/or light-weight aggregate.

REFERENCES:
patent: 1338117 (1920-04-01), Adamson
patent: 2285098 (1942-06-01), Schoch
patent: 2871134 (1959-01-01), Loechl
patent: 3372040 (1968-03-01), Ware
patent: 3445323 (1969-05-01), Schnabel
patent: 3520708 (1970-07-01), Prytherch
patent: 3616173 (1971-10-01), Green
patent: 3625724 (1971-12-01), Alvero
patent: 3769052 (1973-10-01), Kurtz

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