Fire door core

Details Fire door core Fire door core

2005-01-25

2005-01-25

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C106S675000, C106S698000, C106SDIG002, C052S309150, C052S309170, C052S784110, C156S039000, C264S333000, C428S294700, C428S537700, C428S703000, C428S921000

Reexamination Certificate

active

06846358

ABSTRACT:
The present invention describes an improved building material composition, useful for example as a fire door core and to improved methods of making this composition. The building material of the present invention is prepared from an aqueous mixture of expanded perlite and a fast setting, cementitious composition consisting essentially of a hydraulic cement having (1) a Portland cement and (2) a calcium aluminate cement, which composition can be molded and shaped into a fire door core.

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