Fibrous sheet materials

Details Fibrous sheet materials Fibrous sheet materials

1979-06-13

1981-02-03

Chin, Peter

Paper making and fiber liberation

Processes and products

Plural fiber containing

162152, 162156, 162181R, 162181D, D21H 518

Patent

active

042486645

ABSTRACT:
A board product containing glassy inorganic fibre such as mineral wool, in a matrix of a plastic clay such as ball clay. The amounts of clay and inorganic fibre are in the respective ranges 29 to 80 percent by weight and 15 to 55 percent by weight of the product, and its density is at least 500 kg/m.sup.3.
The board can replace asbestos millboard and has the advantage of being asbestos-free. It can be made by the standard paper and board-making techniques, when preferred ingredients are pulp fibres e.g. cellulose pulp, and a complementary binder, particularly hydrolyzable starch, the latter enabling the product to be re-mouldable upon moistening with water.

REFERENCES:
patent: 2773763 (1956-12-01), Scott
patent: 3470062 (1969-09-01), Ollinger
patent: 3510394 (1970-05-01), Cadotte
patent: 3549485 (1970-12-01), Eckert

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