초록

The material can be used as a loose filler or for other foamed articles.

대표청구항 ▼

[ We claim:] [1.] Biodegradable foamed plastic material having a bulk density value comprised within the range of from 5 to 13 kg/m.sup.3, and a corresponding specific density equal or lower than 32 kg/m.sup.3, comprising:from 30 to 99.5% by weight of a polysaccharide containing a level higher than

[ We claim:] [1.] Biodegradable foamed plastic material having a bulk density value comprised within the range of from 5 to 13 kg/m.sup.3, and a corresponding specific density equal or lower than 32 kg/m.sup.3, comprising:from 30 to 99.5% by weight of a polysaccharide containing a level higher than 50%, of thermoplastic starch or starch complexed with natural or synthetic polymeric structures, wherein said starch has:an intrinsic viscosity lower than 1.3 dl/g;an ethanol soluble fraction at 25.degree. C. lower than 20% by weight;from 0.5 to 70% by weight of one or more thermoplastic polymers, wherein at least 10% of this fraction is constituted by a thermoplastic polymer (A) which is soluble in starch, or (B) is capable of complexing starch; andfrom 0 to 20% by weight of water.