characterised by mechanical pre- or post-treatments

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Foams characterised by the foaming process > characterised by mechanical pre- or post-treatments

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• C08J 2201/022 premixing or pre-blending a part of the components of a foamable composition, e.g. premixing the polyol with the blowing agent, surfactant and catalyst and only adding the isocyanate at the time of foaming
• C08J 2201/024 Preparation or use of a blowing agent concentrate, i.e. masterbatch in a foamable composition
• C08J 2201/026 Crosslinking before of after foaming
• C08J 2201/028 Foaming by preparing of a high internal phase emulsion
• C08J 2201/03 Extrusion of the foamable blend
• C08J 2201/032 Impregnation of a formed object with a gas
• C08J 2201/034 Post-expanding of foam beads or sheets
• C08J 2201/036 Use of an organic, non-polymeric compound to impregnate, bind or coat a foam, e.g. fatty acid ester
• C08J 2201/038 Use of an inorganic compound to impregnate, bind or coat a foam, e.g. waterglass