Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating
Patent
1988-07-28
1989-12-12
Silverman, Stanley S.
Coating processes
With post-treatment of coating or coating material
Solid treating member or material contacts coating
4273741, 4273744, 4273855, 427386, 4273898, 4273899, 427391, D02G 300
Patent
active
048866849
ABSTRACT:
A process for the production of prepregs having a high fiber weight of 500 to 2500 g/m.sup.2, in which process fiber strands made of glass carbon, aramid, ceramic, metal or other inorganic and/or organic fiber materials, if appropriate together with woven fabrics, laid fabrics, nonwoven fabrics or mats made from one of these materials, are impregnated with duroplastic resins without additional solvents and fed to a twin-belt press, in whose first part, the pressure heating zone, the impregnated fiber material is converted into the B state under the action of pressure and heat, and in whose second part, the integral pressure cooling zone, the fiber material is cooled under pressure, thus stabilizing the B state.
REFERENCES:
patent: Re31670 (1984-09-01), Arco
patent: 3625739 (1971-12-01), Kaspar et al.
patent: 3947615 (1976-03-01), Fry
"GFK im Fahrzeugbau", pp. 37-39 VDI-Gesellschaft Kunstsofftechnik (1978).
Wood, "Modern Plastics International", pp. 86-88, Aug. 1981.
Maier-Lehner Franz
Schnell Peter
Spaun Rudiger
Danutec Werkstoff Gesellschaft m.b.H.
Silverman Stanley S.
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