Method of molding fiber reinforced plastic articles

Details Method of molding fiber reinforced plastic articles Method of molding fiber reinforced plastic articles

1988-11-14

1990-05-15

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264258, 2642711, 264322, 264324, 264325, 264275, 264277, B29C 4318

Patent

active

049256157

ABSTRACT:
A process for moulding articles of fibre reinforced plastics material which includes pre-heating a sheet of consolidated thermoplastics material which has dispersed therein from 20% to 70% by weight of reinforcing fibres which have a high modulus of elasticity (as herein defined) and between about 7 and about 50 millimeters long to cause the sheet to expand due to relief of the stresses in the reinforcing fibres, placing the expanded sheet in a compression mould and closing the mould to form an article of predetermined shape having portions of different density.

REFERENCES:
patent: 2715755 (1955-08-01), Jones
patent: 3378613 (1968-04-01), Hampshire
patent: 3621092 (1971-11-01), Hofer
patent: 3705071 (1972-12-01), Gras
patent: 3734985 (1973-05-01), Greenberg
patent: 3785900 (1974-01-01), Gras
patent: 3837986 (1974-09-01), Gorter et al.
patent: 3865661 (1975-02-01), Hata et al.
patent: 3891738 (1975-06-01), Shen
patent: 3957943 (1976-05-01), Ogura
patent: 3975483 (1976-08-01), Rudloff
patent: 4178411 (1979-12-01), Cole et al.
patent: 4234652 (1980-11-01), Vanoni et al.
patent: 4242404 (1980-12-01), Bondoc et al.
patent: 4273981 (1981-06-01), Nopper
patent: 4362778 (1982-12-01), Andersson et al.
patent: 4385955 (1983-05-01), Doerfling et al.
patent: 4386943 (1983-06-01), Gumbel et al.
patent: 4399085 (1983-08-01), Belbin et al.
patent: 4426470 (1984-01-01), Wessling et al.
patent: 4430286 (1984-02-01), Franz
patent: 4440819 (1984-04-01), Rosser et al.
patent: 4489031 (1984-12-01), Ogihara
patent: 4495238 (1985-01-01), Adiletta
patent: 4498957 (1985-02-01), Sasaki et al.
patent: 4508777 (1985-04-01), Yamamoto et al.
patent: 4543288 (1985-09-01), Radvan et al.
patent: 4643940 (1987-02-01), Shaw et al.
patent: 4666645 (1987-05-01), Prewo et al.
"Fibre Foam", Proceedings VIIth International Congress on Rheology (1976), Turner and Cogswell.
McKelvey, Polymer Processing, John Wiley & Sons, Inc., N.Y., 1962, excerpt of pp. 1-5.

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