ALIPHATIC POLYESTER RESIN FOAM, FLOWER ARRANGEMENT HOLDER MADE OF THE FOAM, AND PROCESSES FOR PRODUCTION OF BOTH

• Main Authors: FURUKAWA, TOMONORI, SHINOBU, MASAHIDE, FUKUNAGA, SHINICHI, MIYAGAWA, TOSHIO
• Format: Patent
• Language: English; French; Japanese
• Published: 01.10.2009
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; AGRICULTURE; ANIMAL HUSBANDRY; CHEMISTRY; COFFEE MILLS; COMPOSITIONS BASED THEREON; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; DOMESTIC ARTICLES OR APPLIANCES; FISHING; FORESTRY; FURNITURE; GENERAL PROCESSES OF COMPOUNDING; HORTICULTURE; HOUSEHOLD OR TABLE EQUIPMENT; HUMAN NECESSITIES; HUNTING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SPICE MILLS; SUCTION CLEANERS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TRAPPING; WATERING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

Provided are an aliphatic polyester resin foam which has a compressive stress equal to or below that of 50-fold expanded polystyrol foam and which exhibits excellent degradability and excellent shock absorption performance, a biodegradable flower arrangement holder which has not only such low compression strength as to permit arbitrary insertion of flowers but also supporting power and which is excellent in water permeability and water-holding capacity, and processes for production of both. Aliphatic polyester resin expansion moldings which are produced from expanded aliphatic polyester resin particles and which have weight-average molecular weights of 5000 to 140000 and expansion ratios of 10 or above. L'invention concerne une mousse en résine polyester aliphatique, qui présente une contrainte de compression égale ou inférieure à celle de la mousse de polystyrène expansé 50 fois, et qui présente une excellente aptitude à la dégradation et une excellente performance d'absorption des chocs, un support biodégradable pour composition florale, qui présente non seulement une telle faible contrainte de compression de manière à permettre l'insertion arbitraire des fleurs, mais également, une force de support et qui est excellent au niveau de la perméabilité à l'eau et de la capacité de rétention d'eau. L'invention concerne également des procédés de production de ceux-ci. Les moulages par expansion de la résine polyester aliphatique, qui sont produits à partir de particules expansées de résine polyester aliphatique, ont des poids moléculaires moyens en poids allant de 5000 à 140 000 et des rapports d'expansion de 10 ou d'avantage.