METHOD FOR PRODUCING CANVAS-LAYERED HOLLOW BODIES PROVIDED WITH VALVE

Hollow bodies contg. fabric insertions and complete with valve are prepd. with the aid of a core. The core comprises a (un)satd. hydrocarbon which has a higher than room temp. softening pt. and is of a high mol.wt. The size of a core is precalculated to correspond to the dimensions of the required c...

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Bibliographische Detailangaben
Hauptverfasser:	DARVAS,JANOS,HU, SARA,ISTVAN,HU, TOTH,ISTVAN,HU, LACZY,ANTAL,HU, RAFAS,MATENE,HU, GYEBNAR,LASZLO,HU, BENKE,JANOS,HU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Hollow bodies contg. fabric insertions and complete with valve are prepd. with the aid of a core. The core comprises a (un)satd. hydrocarbon which has a higher than room temp. softening pt. and is of a high mol.wt. The size of a core is precalculated to correspond to the dimensions of the required cavity. - The core is cast and a valve is placed in position and closed. The prod. is built up on the solid core and cured. The molten core is removed through the valve. Finally the mould is opened and the prod. is removed.