Method for preparing a fibrous sheet

Details Method for preparing a fibrous sheet Method for preparing a fibrous sheet

1981-07-02

1984-12-11

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621641, 1621681, 162169, 162175, 162183, D21H 300

Patent

active

044876572

ABSTRACT:
The present invention relates to a method for preparing a fibrous sheet by paper-making means, according to which the flocculating agent is introduced in the aqueous suspension containing the basic mixture chosen from the group constituted by (i) the fibers alone when there is no non-binding mineral filler, and (ii) the fibers and the non-binding mineral filler when said latter is present, before and after the introduction of the organic binder. It also concerns, as new industrial product, the sheet obtained according to this method. Finally, it relates to the application of said sheet particularly in the domain of coverings (as a replacement for asbestos) and printing-writing supports.

REFERENCES:
patent: 2133694 (1938-10-01), Greider et al.
patent: 2635045 (1953-04-01), Bixler et al.
patent: 3300372 (1967-01-01), Bauer
patent: 3549485 (1970-12-01), Eckert
patent: 4011130 (1977-03-01), Worden
patent: 4121966 (1978-10-01), Amano et al.
patent: 4225383 (1980-09-01), McReynolds
patent: 4245689 (1981-01-01), Grard et al.
Casey, Pulp and Paper, vol. II, (1960), pp. 950, 951.

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