Method of preparing a sheet-formed product

Details Method of preparing a sheet-formed product Method of preparing a sheet-formed product

1977-06-08

1980-05-13

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264115, 264122, B29J 500

Patent

active

042028515

ABSTRACT:
A new method of preparing a fire-resistant sheet formed product is disclosed involving the following steps: (1) grinding together a particulate inorganic material selected from the group consisting of crystallized blistered glass, crushed cement clinkers and crushed blast furnace slags, a hydraulic binder and from 10 to 2% by weight of an organic thermosetting binder in a ball mill until the particulate inorganic material has sufficiently disintegrated and the particulate inorganic material, the hydraulic binder, and the organic thermosetting binder are homogeneously distributed to form a dry mixture of particles; (2) subjecting the dry mixture of particles to heat treatment, under pressure, to consolidate and bond the dry particles into a unitary structure to form a sheet; and (3) after release of pressure, treating the sheet with water to set and cure the hydraulic binder.

REFERENCES:
patent: 2486050 (1949-10-01), Miller et al.
patent: 3084130 (1963-04-01), Painter
patent: 3905864 (1975-09-01), Curry et al.
patent: 3972972 (1976-08-01), Yano

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