COMPOSITE MOLDED ARTICLE, LAMINATE, AND METHOD FOR PRODUCING COMPOSITE MOLDED ARTICLE

• Main Author: SASAKI, HIDEHIRO
• Format: Patent
• Language: English; French; Japanese
• Published: 21.01.2016
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The present invention provides a composite molded article and a laminate, said composite molded article: being formed by fixing and unifying aliphatic polyester resin foam particles and a thermosetting resin cured product that is formed between the foam particles and includes a reinforcement fiber; being characterized in that the aliphatic polyester resin is a polylactic acid resin, and the flexural modulus E (MPa) of the composite molded article and the density ρ (kg/m3) of the composite molded article satisfy formula (1), E1/3/ρ ≥ 0.02 [(MPa)1/3(kg/m3)-1] (1); and having improved strength. L'invention concerne un corps moulé composite dans lequel des particules expansées de résine à base de polyester aliphatique, et un article durci en résine thermodurcissable formé entre les particules expansées et contenant des fibres de renforcement, sont solidarisés par mise en adhésion. Ladite résine à base de polyester aliphatique consiste en une résine à base d'acide polylactique. Le corps moulé composite de l'invention est caractéristique en ce que son module de courbure E(MPa) et sa densité ρ(kg/m3) satisfont la formule (1) suivante. E1/3/ρ≥0,02[(MPa)1/3(kg/m3)-1] (1) L'invention fournit ainsi un corps moulé composite ainsi qu'un stratifié dont la solidité est améliorée. 　本発明は脂肪族ポリエステル系樹脂発泡粒子と、該発泡粒子間に形成された、強化繊維を含む熱硬化性樹脂硬化物とが固着一体化された複合成形体であって、 前記脂肪族ポリエステル系樹脂がポリ乳酸系樹脂であり、前記複合成形体の曲げ弾性率Ｅ（ＭＰａ）と複合成形体の密度ρ（ｋｇ／ｍ３）が下式（１）を満足することを特徴とする複合成形体であり、　Ｅ１／３／ρ　≧　０．０２　[（ＭＰａ）１／３（ｋｇ／ｍ３）－１]　（１） 強度のより改良された複合成形体および積層体を提供する。