Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Patent
1975-04-08
1976-06-29
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
156175, 264136, 264229, B29C 2726
Patent
active
039668649
ABSTRACT:
Filament-wound reinforced plastic articles and parts thereof are obtained by wetting and impregnating filaments, rovings, webs, and the like fibrous materials consisting of glass, carbon, graphite, boron, steel, asbestos, temperature resistant organic fibers, and the like with a liquid or liquefied polymerizable organic compound of a high melting point which can be polymerized by addition polymerization, and converting the wetted fibrous material into the desired wound plastic article or part thereof by winding around a mandrel and then subjecting the wound article to addition polymerization. Wetting and winding with the polymerizable organic compound are effected under conditions under which substantially no polymerization takes place. Especially suitable polymerizable organic compounds are bisimides such as the bismaleimides of a melting point which is at least 20.degree. C. below the temperature required for polymerization.
REFERENCES:
patent: 3530212 (1970-09-01), Kienle
patent: 3627780 (1971-12-01), Bonnard
patent: 3629028 (1971-12-01), McLarty
patent: 3654227 (1972-04-01), Dine-Hart
patent: 3743561 (1973-07-01), Koontz
Kucia Richard R.
Radde Erich M. H.
Technochemie GmbH Verfahrenstechnik of Heidelberg
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