Methods of manufacturing water-repellent fluffy batts of wood pu

Details Methods of manufacturing water-repellent fluffy batts of wood pu Methods of manufacturing water-repellent fluffy batts of wood pu

1975-06-10

1977-05-10

Bashore, S. Leon

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

With liberating or forming of particles

162100, 162183, 162213, 264 91, 264121, D04H 316

Patent

active

040228614

ABSTRACT:
A method of manufacturing a water-repellent, fluffy lightweight batt of wood pulp fibers comprising applying a water-repellent material to a surface of a dry wood pulp board so that the water-repellent penetrates through only a portion of the board. The treated board is ground to individualize the fibers, and the ground fibers are collected in a batt with the water-repellent treated fibers distributed uniformly throughout to produce a fluffy, water-repellent batt of wood pulp fibers.

REFERENCES:
patent: 3554863 (1971-01-01), Hervey et al.
patent: 3677886 (1972-07-01), Forssblad et al.
patent: 3756913 (1973-09-01), Wodka
Casey, "Pulp & Paper", vol. II (1960), 2nd ed., p. 947.

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