| 摘要 |
This invention relates to a polymer composition that is particularly suitable for use in the manufacture of thermoformed articles, which can be biodegraded in industrial composting. This invention also relates to a process for the production of the said composition and articles obtained thereby. The polymer composition comprises, with respect to the sum of components i.-iv.: i) 20 - 60 % by weight of at least one polyester comprising: a) a dicarboxylic component comprising with respect to the total dicarboxylic component: a1) 0 - 20% in moles of units deriving from at least one aromatic dicarboxylic acid, a2) 80 - 100% in moles of units deriving from at least one saturated aliphatic dicarboxylic acid, a3) 0 - 5% in moles of units deriving from at least one unsaturated aliphatic dicarboxylic acid; b) a diol component comprising, with respect to the total diol component,: b1) 95 - 100% in moles of units deriving from at least one saturated aliphatic diol; b2) 0 - 5% in moles of units deriving from at least one unsaturated aliphatic diol; ii) 5 - 35 % by weight of at least one polyhydroxyalkanoate; iii) 0.01 - 5% by weight of at least one hydrolysis stabilizer comprising at least one compound having di- and/or multiple functional groups comprising carbodiimide groups; iv) 5 - 50% by weight of at least one filler agent. |
