POLYLACTIC ACID COMPOSITION AND METHOD FOR PRODUCING THE SAME, AND PRODUCT

• Main Authors: NOZAKI CHIYOJI, SUGIURA HIDEKI, NEMOTO TAICHI
• Format: Patent
• Language: English; Japanese
• Published: 05.11.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

To provide a polylactic acid composition which has good heat resistance and is excellent in biodegradability.SOLUTION: A polylactic acid composition contains at least a polylactic acid and a filler, in which a content of the filler in the polylactic acid composition is 50 mass% or less, a weight average molecular weight (Mw) of the polylactic acid in the polylactic acid composition is 150,000 or more, and a molecular weight distribution (Mn/Mw) is 1.5 or more and 2.0 or less.SELECTED DRAWING: None 【課題】耐熱性が良好であり、かつ生分解性に優れたポリ乳酸組成物の提供。【解決手段】少なくともポリ乳酸、及びフィラーを含有するポリ乳酸組成物であって、前記ポリ乳酸組成物中の前記フィラーの含有量が５０質量％以下であり、前記ポリ乳酸組成物中におけるポリ乳酸の重量平均分子量（Ｍｗ）が１５０，０００以上であり、かつ分子量分布（Ｍｎ／Ｍｗ）が１．５以上２．０以下であるポリ乳酸組成物である。【選択図】なし