Biodisintegrable thermoplastic resin foam and a process for...

Details Biodisintegrable thermoplastic resin foam and a process for... Biodisintegrable thermoplastic resin foam and a process for...

C - Chemistry, Metallurgy

08

L

18/637

C08L 101/00 (2006.01) C08J 9/00 (2006.01)

Patent

CA 2032822

- 1 - Title: A Biodisintegrable Thermoplastic Resin Foam and a Process for Producing Same ABSTRACT OF THE DISCLOSURE A biodisintegrable thermoplastic resin foam and a process for producing same are disclosed, the biodisintegrable thermoplastic resin foam being comprised as a substrate thereof a mixed resin comprising 5-40 weight % of a thermoplastic resin decomposable by microorganisms and 95-60 weight % of a thermoplastic resin not decomposable by microorganisms and being characterized in that the individual aerial cells constituting the foam have an average cell wall thickness of 1-100 µm and an apparent density of 0.5 g/cm3 or less than 0.5 g/cm3. The biodisintegrable thermoplastic resin foam is easily disintegrable after disposal in an environment where microorganisms exist so that it can be reduced in bulkness and gives no harmful effect on the life of natural plants and animals. The foam incorporated with a filler can be promoted in disintegration by microorganisms. Thus the present invention affords an effective means for solving various problems in the treatment of disposed materials.

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