Fibrous sheet materials

Details Fibrous sheet materials Fibrous sheet materials

C - Chemistry, Metallurgy

04

B

9/43, 261/43

C04B 30/02 (2006.01) D21H 13/40 (2006.01) D21H 17/68 (2006.01)

Patent

CA 1119206

ABSTRACT Fibrous Sheet Material 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 per cent by weight and 15 to 55 per cent by weight of the product, and its density is at least 500kg/m3. 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 hydrolysable starch, the latter enabling the product to be re-mouldable upon moistening with water.

329640

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