Aromatic polyamide paper-like sheet and processes for producing

Details Aromatic polyamide paper-like sheet and processes for producing Aromatic polyamide paper-like sheet and processes for producing

1983-09-15

1985-02-12

Chin, Peter

Paper making and fiber liberation

Processes and products

Plural fiber containing

1621572, 162182, 162192, 264 6, 264 14, 428288, 428364, 4284744, D21H 512

Patent

active

044989571

ABSTRACT:
An aromatic polyamide paper-like sheet having excellent heat- and chemical- resistances and electric insulating properties, comprises an artificial pulp ingredient comprising a number of amorphous pulp particles consisting of an aromatic polyamide material, and a fiber ingredient consisting of a number of short fibers bonded to each other with the amorphous pulp particles, the ratio in weight of the artificial pulp ingredient to the fiber ingredient being in a range of from 1:9 to 9:1 and the aromatic polyamide molecules contained at least in the amorphous pulp particles being cross-linked with a cross-linking agent.

REFERENCES:
patent: 2940953 (1960-06-01), Belanger
patent: 2947725 (1960-08-01), Cooke
patent: 2999788 (1961-09-01), Morgan
patent: 3409497 (1968-11-01), Roseland
patent: 3676249 (1972-07-01), Lemelson
patent: 3734887 (1973-05-01), Schmitt et al.
patent: 3756908 (1973-09-01), Gross
patent: 3779949 (1973-12-01), Porret et al.
patent: 4230766 (1980-10-01), Gaussens et al.

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