Method of increasing the freeness of asbestos slurries

Details Method of increasing the freeness of asbestos slurries Method of increasing the freeness of asbestos slurries

1976-08-06

1977-06-28

Lindsay, Jr., Robert L.

Paper making and fiber liberation

Processes and products

Mineral fiber

162168R, 162169, 162183, D21F 1100

Patent

active

040323927

ABSTRACT:
This invention represents an improvement in the method for making beater-saturated products by forming a slurry of asbestos fibers in water, precipitating a synthetic, non-film forming, organic binder in particulate form on said fibers to form a slurry of coated fibers, draining the slurry of coated fibers and forming a product therefrom. The improvement in accordance with this invention comprises controlling the drainage time of the slurry of coated fibers by adding to such slurry a film-forming secondary binder.

REFERENCES:
patent: 2485458 (1949-10-01), Quinn et a.
patent: 2868641 (1959-01-01), Feigley
patent: 3153610 (1964-10-01), Heiser et al.
patent: 3694281 (1972-09-01), Leduc

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