Biodegradable foamed plastic materials

Details Biodegradable foamed plastic materials Biodegradable foamed plastic materials

C - Chemistry, Metallurgy

08

L

C08L 3/02 (2006.01) C08J 9/12 (2006.01) C08J 9/228 (2006.01)

Patent

CA 2155594

Biodegradable foamed plastic material having a bulk den-sity comprised within the range of from 5 to 13 kg/m3, comprising: -- 30-99.5 by weight of polisaccharide containing more than 50% of thermoplastic starch or starch complexed by polimeric structures, having an intrinsic viscosity (in DMSO) lower than 1.3 dl/g and less than 20% by weight of soluble fraction in ethanol; -- 0.5-70% by weight of a thermoplastic polymer which is soluble in starch, or is capable of complexing it; -- 0-20% by weight of water. The material can be used as a loose filler or for other foamed articles.

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