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    • 11. 发明申请
    • READILY DEGRADABLE RESIN COMPOSITION AND BIODEGRADABLE CONTAINER USING THE SAME
    • 可使用的可降解树脂组合物和可生物降解的容器
    • US20100086718A1
    • 2010-04-08
    • US12442583
    • 2007-09-26
    • Seishi YoshikawaMitsuhiro YoshidaMasahito Kogure
    • Seishi YoshikawaMitsuhiro YoshidaMasahito Kogure
    • C08K5/03B32B1/00
    • B65D65/466C08L67/02C08L67/04C08L2201/06Y02W90/13Y10S220/30Y10T428/1352Y10T428/139Y10T428/1397C08L2666/18
    • Disclosed is a readily degradable resin composition having excellent biodegradability. Specifically disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B) which has a solution viscosity (η inh) of 0.25 dl/g or less as measured in a mixed solvent composed of m-chlorophenol and 1,2,4-trichlorobenzene at a weight-based ratio of 4:1 at a concentration of 0.4 g/dl and at a temperature of 30° C. and a melt viscosity of 50 Pa S or less as measured at 190° C. at a shear rate of 1 rad/s and is capable of biodegraded at a more rapid degradation rate than the aliphatic polyester (A). Also disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B′) which, when hydrolyzed, can release an acid showing a pH value of 2.0 or less when dissolved in water at a concentration of 0.005 g/ml and is capable of biodegraded at a more rapid degradation rate than the aliphatic polyester (A). Further disclosed is a biodegradable container comprising the readily degradable resin composition.
    • 公开了具有优异生物降解性的易降解树脂组合物。 具体公开了一种易降解树脂组合物,其包含:具有生物降解性的脂肪族聚酯(A) 和在由间氯苯酚和1,2,4-三氯苯组成的混合溶剂中测定的溶液粘度(&egr。inh)为0.25dl / g以下的脂肪族聚酯(B),其重量比为 4:1,浓度为0.4g / dl,温度为30℃,熔体粘度为50Pa·s以下,在190℃,1rad / s的剪切速率下测定,能够 以比脂肪族聚酯(A)更快的降解速率生物降解。 还公开了一种易降解树脂组合物,其包含:具有生物降解性的脂肪族聚酯(A) 和脂肪族聚酯(B'),当被水解时,当溶解在0.005g / ml浓度的水中时,可以释放显示出pH值为2.0以下的酸的酸,并能以比 脂肪族聚酯(A)。 进一步公开的是包含易降解树脂组合物的可生物降解的容器。
    • 18. 发明授权
    • Readily degradable resin composition and biodegradable container using the same
    • 易于降解的树脂组合物和使用其的可生物降解的容器
    • US08048502B2
    • 2011-11-01
    • US12442583
    • 2007-09-26
    • Seishi YoshikawaMitsuhiro YoshidaMasahito Kogure
    • Seishi YoshikawaMitsuhiro YoshidaMasahito Kogure
    • B29D22/00B29D23/00B32B1/08
    • B65D65/466C08L67/02C08L67/04C08L2201/06Y02W90/13Y10S220/30Y10T428/1352Y10T428/139Y10T428/1397C08L2666/18
    • Disclosed is a readily degradable resin composition having excellent biodegradability. Specifically disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B) which has a solution viscosity (η inh) of 0.25 dl/g or less as measured in a mixed solvent composed of m-chlorophenol and 1,2,4-trichlorobenzene at a weight-based ratio of 4:1 at a concentration of 0.4 g/dl and at a temperature of 30° C. and a melt viscosity of 50 Pa S or less as measured at 190° C. at a shear rate of 1 rad/s and is capable of biodegraded at a more rapid degradation rate than the aliphatic polyester (A). Also disclosed is a readily degradable resin composition comprising: an aliphatic polyester (A) which has biodegradability; and an aliphatic polyester (B′) which, when hydrolyzed, can release an acid showing a pH value of 2.0 or less when dissolved in water at a concentration of 0.005 g/ml and is capable of biodegraded at a more rapid degradation rate than the aliphatic polyester (A). Further disclosed is a biodegradable container comprising the readily degradable resin composition.
    • 公开了具有优异生物降解性的易降解树脂组合物。 具体公开了一种易降解树脂组合物,其包含:具有生物降解性的脂肪族聚酯(A) 和在由间氯苯酚和1,2,4-三氯苯组成的混合溶剂中测定的溶液粘度(&egr。inh)为0.25dl / g以下的脂肪族聚酯(B),其重量比为 4:1,浓度为0.4g / dl,温度为30℃,熔体粘度为50Pa·s以下,在190℃,1rad / s的剪切速率下测定,能够 以比脂肪族聚酯(A)更快的降解速率生物降解。 还公开了一种易降解树脂组合物,其包含:具有生物降解性的脂肪族聚酯(A) 和脂肪族聚酯(B'),当被水解时,当溶解在0.005g / ml浓度的水中时,可以释放显示出pH值为2.0以下的酸的酸,并能以比 脂肪族聚酯(A)。 进一步公开的是包含易降解树脂组合物的可生物降解的容器。