Expanded biopolymer-based articles and process of production of these

R.F. van Tuil (Inventor), J.J. van Heemst (Inventor)

    Research output: PatentOther research output

    Abstract

    Three-dimensional foam mouldings made of a biodegradable thermoplastic polymer, in particular starch, and preferably a second biodegradable component can be manufactured in a discontinuous process by heating the polymer, in the form of an expandable bead or sheet or the like, in a mould having any desired shape under pressure in the presence of a blowing agent and subsequently depressurising. The second component can be used to enhance the water-resistance or the mould product and can be applied after, or preferably during or before the moulding step.
    Original languageEnglish
    Patent numberWO0220238
    Priority date5/09/00
    Publication statusPublished - 14 Mar 2002

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