Method of manufacturing an inorganic board

Details Method of manufacturing an inorganic board Method of manufacturing an inorganic board

1996-02-07

1997-10-28

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-uniform, irregular or configured web or sheet

162119, 162120, 162128, 162132, 162133, 162145, 162146, 162152, 162154, 1621816, 162222, 162223, 162225, D21F 1306

Patent

active

056814283

ABSTRACT:
An inorganic board consisting of a cured base mat and a cured surface mat is manufactured by forming a surface mat by the dry method on a base mat formed by a paper making method, embossing the composite mat, and curing the embossed composite mat. Ridges each having an enlarged top are formed on the surface of the base mat when a plural number of single mats formed by the paper making method are rolled and laminated around a making roll having a surface on which a plural number of ring grooves are formed. The ridges of the base mat engage the surface mat since each ridge has an enlarged top to improve the interlaminate strength between a cured base mat and a cured surface mat of the resulting inorganic board.

REFERENCES:
patent: 1500209 (1924-07-01), Shaw
patent: 2171155 (1939-08-01), Wright, Jr.
patent: 2738713 (1956-03-01), Buczkowski et al.
patent: 2818824 (1958-01-01), Read et al.

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