| 摘要 |
<p>PURPOSE:To provide a biodegradable container, made of a plastic and capable of rapidly advancing degradation when discarded after use even if the container has a thick wall and having structural strength. CONSTITUTION:A container is obtained by blending a biodegradable plastic, e.g. a poly-3-hydroxybutyrate, a poly-4-hydroxybutyrate and a polyhydroxyvalerate copolymer which is a polyester produced by microorganisms, with 10-40% granular filler (e.g. calcium carbonate or hydrous magnesium silicate) having <=20mum average grain diameter.</p> |
