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专利名称：Improvements in or relating to the
production of polymeric foam
发明人：Vreenegoor, Nicholas Cornelius申请号：EP84303325申请日：19840516公开号：EP0127385A3公开日：19860611
摘要：In the production of polymeric foam in particular polyurethane foam slabstock,a mixture of foam reactants is allowed to expand in a closed mould while substantiallyatmospheric pressure is maintained above the upper surface of the foam. After expansionis completed, air is supplied to the foam upper surface and noxious gases in the foam areremoved through one or more apertures in the lower region of the mould. Preferably,the air supplied is dry. Removed gases may be collected for re-cycling. Air may besupplied during foam expansion. Various mould aperture arrangements and means forprogressively covering the mould are described.
申请人：Unifoam AG
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