Building board of fiber and asphalt coated perlite
United States Patent 2626864

Inventors:
Jack, Miscall
Rahr, Chester E.
Publication Date:
01/27/1953
View Patent Images:
Assignee:
GREAT LAKES CARBON CORP
Primary Class:
Other Classes:
162/145, 252/378P, 162/153, 162/157.100, 162/156, 106/287.350, 106/282, 106/122, 106/2, 162/159, 106/284.030
International Classes:
C04B26/26; C08J9/00; D21J1/08; C04B26/00; D21J1/00
US Patent References:
1978923Composition board
2051423Insulated conductor
2388060Ceramic composition
2395218Felted wood fiber machinable corksubstitute material
2501698Thermal expansion and vesiculation process for siliceous materials
2501962Process for expanding earth materials
2542721Fire retardant waterproof coating