METHOD FOR THE VACUUM-SUPPORTED MANUFACTURE OF A PUR/PIR FOAM BODY

The method involves providing a mold which is adjusted for applying a negative pressure to the interior of the mold, where a reaction mixture with an isocyanate-reactive composition and an isocyanate is filled into the mold. The negative pressure is applied on the interior of the mold, so that the n...

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Bibliographische Detailangaben
Hauptverfasser:	VOGEL, Stephanie, ALBERS, Reinhard, KLASEN, Patrick
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS 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:	The method involves providing a mold which is adjusted for applying a negative pressure to the interior of the mold, where a reaction mixture with an isocyanate-reactive composition and an isocyanate is filled into the mold. The negative pressure is applied on the interior of the mold, so that the negative pressure acts on the filled reaction mixture. The negative pressure is applied no latter than time to the interior of the mold. The ratio of the reaction mixture carries greater than or equal to 300. An independent claim is included for a polyurethane or polyisocyanurate-foam body that is an insulation panel.