Polyactic acid resin composition and molded article thereof, and process of producing the molded article
申请人:Asahi Denka Co., Ltd.
公开号:EP1477526A1
公开(公告)日:2004-11-17
A polylactic acid resin composition comprising 100 parts by weight of a polylactic acid, (A) 0 to 10 parts by weight of a phenol antioxidant, and (B) 0.01 to 10 parts by weight of at least one amide compound selected from the group consisting of (b-1) an acyclic amide, (b-2) a cyclic amide, (b-3) an acyclic hydrazide, and (b-4) a cyclic hydrazide or (b-5) a compound represented by formula (P):
wherein Ra and Rb each represent a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms or an aryl group having 6 to 18 carbon atoms, or they are connected to each other to form a ring to make a condensed ring having a total carbon atom number of 10 to 18; R represents a single bond, an n-valent hydrocarbon group having 2 to 30 carbon atoms, an n-valent heterocyclic group or a group of formula:
wherein R' represents an n-valent hydrocarbon group having 1 to 30 carbon atoms or an n-valent heterocyclic group; X represents a single bond or an alkylene group having 1 to 20 carbon atoms; and n represents 1, 2 or 3,
and n represents 1, 2 or 3.
一种聚乳酸树脂组合物,包括 100 重量份的聚乳酸,(A) 0 至 10 重量份的苯酚抗氧剂,和(B) 0.01 至 10 重量份的至少一种酰胺化合物,该酰胺化合物选自(b-1)无环酰胺、(b-2)环酰胺、(b-3)无环酰肼和(b-4)环酰肼或(b-5)式(P)代表的化合物:
其中 Ra 和 Rb 分别代表氢原子、羟基、具有 1 至 8 个碳原子的烷基、具有 1 至 8 个碳原子的烷氧基或具有 6 至 18 个碳原子的芳基,或者它们相互连接形成一个环,以构成总碳原子数为 10 至 18 的缩合环;R 代表单键、具有 2 至 30 个碳原子的正价烃基、正价杂环基团或式(P)所示基团:
其中 R'代表具有 1 至 30 个碳原子的正价烃基或正价杂环基; X 代表单键或具有 1 至 20 个碳原子的亚烷基; n 代表 1、2 或 3、
和 n 代表 1、2 或 3。