申请人:Kaneka Corporation
公开号:EP1826241A1
公开(公告)日:2007-08-29
The present invention has its object to provide a resin composition excellent in impact resistance, tensile properties and transparency using a plant-derived biodegradable polymer obtained by positive fixation of carbon dioxide on the earth and, moldings thereof, and, further, provide a resin composition and moldings thereof improved in processability and thermal stability.
The present invention relates to
a resin composition
which comprises
(A), an aliphatic polyester type biodegradable polymer and
(B) at least one copolymer selected from the group consisting of composite rubber graft copolymers (b1) and core-shell type graft copolymers (b2); or,
a resin composition
which comprises
(A) an aliphatic polyester type biodegradable polymer and
(C) at least one compound selected from the group consisting of sorbitol compounds (c1) having a particular chemical structure and urea bond-containing substituted urea compounds (c2).
本发明的目的是提供一种具有优异抗冲击性、拉伸性能和透明度的树脂组合物,该树脂组合物使用了一种通过二氧化碳在地球上的正固定作用而获得的植物源生物可降解聚合物及其模塑件,此外,还提供了一种在加工性和热稳定性方面均有所改善的树脂组合物及其模塑件。
本发明涉及
一种树脂组合物
它包括
(A) 脂肪族聚酯型可生物降解聚合物和
(B) 至少一种选自复合橡胶接枝共聚物 (b1) 和芯壳型接枝共聚物 (b2) 组的共聚物;或
树脂组合物
其中包括
(A) 脂肪族聚酯型可生物降解聚合物和
(C) 至少一种选自具有特定化学结构的山梨醇化合物(c1)和含脲键的取代脲化合物 (c2)的化合物。