| 摘要 |
Article producible by thermoforming or injection molding, comprises: (i) biodegradable polyester comprising succinic acid, at least one dicarboxylic acid, 1,3-propanediol or 1,4-butanediol, and a chain extender or a branching agent, (ii) polylactic acid, (iii) at least one mineral filler, and (iv) a nutrient salt-mixture comprising at least two components containing nitrogen-containing cations or anions, sulfur-containing anions, or phosphorus-containing anions and cations, preferably potassium ions, sodium ions, calcium ions, magnesium ions or iron ions. Article producible by thermoforming or injection molding, comprises (in wt.%): (i) biodegradable polyester (50-85, based on the total weight of the components (i) and (ii)) comprising (in mole%) (a) succinic acid (90-99.5, based on the components (a) and (b)), (b) at least one 8-20C dicarboxylic acid (0.5-10, based on the components (a) and (b)), (c) 1,3-propanediol or 1,4-butanediol (98-102, based on the components (a) and (b)), and (d) a chain extender or a branching agent (0-1, based on the components (a)-(c)); (ii) polylactic acid (15-50, based on the total weight of the components (i) and (ii)); (iii) at least one mineral filler (10-50, based on the total weight of the components (i)-(iv)), and (iv) a nutrient salt-mixture (0-2, based on the total weight of the components (i)-(iv)) comprising at least two components containing nitrogen-containing cations or anions, sulfur-containing anions, or phosphorus-containing anions or cations, preferably potassium ions, sodium ions, calcium ions, magnesium ions or iron ions. |
