Resin molded structure and manufacturing method thereof
Abstract
Abstract Translated from Japanese (57)【要約】 【目的】 生分解性に優れ、更にガス遮断性、機械的強 度、溶融成形性等に優れた新規多層分布構造の樹脂成形 構造物及びその製法を提供する。 【構成】 (A)ヒドロキシアルカノエート単位を主体 とする飽和ポリエステル樹脂と、(B)ビニルアルコー ル単位を含有する熱成形可能な水酸基含有樹脂とのブレ ンド物から形成され、前記水酸基含有樹脂が内外表面に 比し中心部に優先的に分布した多層分布構造を有する。 溶融温度200℃、剪断速度1×10 3 乃至6×10 3 sec - 1 の範囲で少なくとも上記(A)飽和ポリエス テル樹脂より溶融粘度の低い(B)水酸基含有樹脂を用 い、 A:B=95:5乃至50:50 の重量比で含有し、押出乃至射出する。 (57) [Summary] [PROBLEMS] To provide a resin molded structure having a novel multilayer distribution structure, which is excellent in biodegradability, gas barrier property, mechanical strength, melt moldability and the like, and a method for producing the same. [Structure] Formed from a blend of (A) a saturated polyester resin mainly containing a hydroxyalkanoate unit and (B) a thermoformable hydroxyl group-containing resin containing a vinyl alcohol unit, wherein the hydroxyl group-containing resin has inner and outer surfaces. It has a multi-layered distribution structure that is preferentially distributed in the central portion as compared with. Melting temperature 200 ° C, shear rate 1 × 10 3 to 6 × 10 3 (B) Hydroxyl group-containing resin having a melt viscosity lower than that of the above (A) saturated polyester resin in the range of sec −1 is used, and it is contained at a weight ratio of A: B = 95: 5 to 50:50 and extruded or injected. .
Inventors
- 👤 Takuro Ito
- 👤 卓郎 伊藤
- 👤 Kichiji Maruhashi
- 👤 吉次 丸橋
- 👤 Masao Tanigawa
- 👤 征男 谷川
- 👤 Nobumichi Yamaguchi
- 👤 尹通 山口
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