Process for the production of nonwoven cellulose acetate laminat

Details Process for the production of nonwoven cellulose acetate laminat Process for the production of nonwoven cellulose acetate laminat

1975-01-22

1977-02-15

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

With printing or coating of workpiece

Coating or impregnating workpiece before molding or shaping...

264128, B29G 700

Patent

active

040083012

ABSTRACT:
A nonwoven cellulose acetate laminate is made from a base material mainly composed of a cellulose acetate fiber web, in a short time, by the steps of: impregnating a liquid initial condensate of phenol-formaldehyde into the web or spraying a powdery condensate of phenol-formaldehyde onto the web, and then penetrating superheated steam through the resultant cellulose acetate laminate sheet. The sheet possesses good mechanical properties and excellent sound-absorbing and heat-insulating characteristics.

REFERENCES:
patent: 2152901 (1935-04-01), Manning
patent: 2707804 (1955-05-01), Thornburg
patent: 3436304 (1969-04-01), Spence
patent: 3494263 (1970-02-01), Tachibana et al.

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