Method of composite part fabrication

Details Method of composite part fabrication Method of composite part fabrication

1988-03-18

1989-08-15

Lusignan, Michael

Paper making and fiber liberation

Processes and products

Mineral fiber

1621573, 1621681, 528392, D21F 1100, D21H 518, D21H 340, D21B 300

Patent

active

048571474

ABSTRACT:
A method is disclosed for the formation of three dimensional composite articles by use of an aqueous slurry containing thermoplastic powder. The slurry is retained by a rotating wheel that is capable of dewatering and drying the slurry sufficiently within molds carried by the wheel so as to dimensionally stabilize the three dimensional composite prior to its release from the wheel. The thermoplastic powder used in the process of the present invention has a specific gravity greater than 1, and therefore mixes homogeneously with the other components of the aqueous slurry so as to yield a composite having similar mechanical properties across its entire cross section.

REFERENCES:
patent: 1623631 (1927-04-01), Mattison
patent: 3157566 (1964-11-01), Brafford
patent: 3271239 (1966-08-01), Hornbostel
patent: 3661707 (1972-05-01), Emery et al.
patent: 4426470 (1984-01-01), Wessling et al.
patent: 4448640 (1984-05-01), Brault et al.
patent: 4599476 (1986-07-01), Drent
patent: 4612251 (1986-09-01), Fredenucci et al.
patent: 4645565 (1987-02-01), Vallee et al.
patent: 4740625 (1988-04-01), Drent

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