Process of producing fibre-reinforced shaped articles

Details Process of producing fibre-reinforced shaped articles Process of producing fibre-reinforced shaped articles

1982-01-20

1983-08-16

Foelak, Morton

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

264 453, 264 455, 264 461, 425325, 521 79, 521 80, 521 91, 521143, 521182, B29D 2700, B29H 720

Patent

active

043990851

ABSTRACT:
A process of producing a fibre-reinforced shaped article comprising extruding a composition comprising a settable fluid as a carrier for fibres at least 5 mm in length through a die so that relaxation of the fibres causes the extrudate to expand to form an open fibrous structure with randomly dispersed fibres as the extrudate leaves the die characterized in that the porous extrudate is compressed while the carrier is in a fluid condition into a shaped article. The process enables moulded articles to be formed having a random distribution of fibres the majority of which are at least 5 mm long.

REFERENCES:
patent: 3474048 (1969-10-01), Chappelear et al.
patent: 3474049 (1969-10-01), Chappelear et al.
patent: 3474050 (1969-10-01), Chappelear et al.
patent: 3474051 (1969-10-01), Chappelear et al.
patent: 3476698 (1969-11-01), Chappelear et al.
patent: 3480569 (1969-11-01), Chappelear et al.
patent: 3742106 (1973-06-01), Price
patent: 3765998 (1973-10-01), Oswald et al.
patent: 4058581 (1977-11-01), Park
patent: 4178411 (1979-12-01), Cole et al.

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