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公开(公告)号：US20080039579A1
公开(公告)日：2008-02-14
申请号：US11658093
申请日：2005-07-20
申请人： Yoshiharu Kimura , Zhen Tang , Kazuki Fukushima , Kiyotsuna Toyohara , Ryuji Nonokawa , Yasuhito Maeda , Masayuki Takada , Yuka Komazawa , Tsuyoshi Aoki
发明人： Yoshiharu Kimura , Zhen Tang , Kazuki Fukushima , Kiyotsuna Toyohara , Ryuji Nonokawa , Yasuhito Maeda , Masayuki Takada , Yuka Komazawa , Tsuyoshi Aoki
CPC分类号： C08G63/08 , C08G63/06 , C08J5/045 , C08J2367/04
摘要： It is an object of the present invention to provide polylactic acid containing a stereocomplex crystal and having excellent moldability, a high molecular weight, high crystallinity and a high melting point and a process for manufacturing the same. It is another object of the present invention to provide a composition comprising the polylactic acid and a molded product of the polylactic acid. The present invention is characterized from polylactic acid having a weight average molecular weight of 80,000 to 500,000 and a melting peak at 195° C. or higher which accounts for 80% or more of the total of melting peaks in the temperature elevation step when measured by a differential scanning calorimeter (DSC) and a process for manufacturing the same.
摘要翻译： 本发明的目的是提供含有立体络合物晶体的聚乳酸，并且具有优异的成型性，高分子量，高结晶度和高熔点及其制造方法。 本发明的另一个目的是提供包含聚乳酸和聚乳酸的模塑产品的组合物。 本发明的特征在于重均分子量为80,000〜500,000的聚乳酸和195℃以上的熔融峰，当温度升高步骤中的熔融峰的总量为80％以上时，其通过 差示扫描量热计（DSC）及其制造方法。
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公开(公告)号：US08304490B2
公开(公告)日：2012-11-06
申请号：US11658093
申请日：2005-07-20
申请人： Yoshiharu Kimura , Zhen Tang , Kazuki Fukushima , Kiyotsuna Toyohara , Ryuji Nonokawa , Yasuhito Maeda , Masayuki Takada , Yuka Komazawa , Tsuyoshi Aoki
发明人： Yoshiharu Kimura , Zhen Tang , Kazuki Fukushima , Kiyotsuna Toyohara , Ryuji Nonokawa , Yasuhito Maeda , Masayuki Takada , Yuka Komazawa , Tsuyoshi Aoki
CPC分类号： C08G63/08 , C08G63/06 , C08J5/045 , C08J2367/04
摘要： It is an object of the present invention to provide polylactic acid containing a stereocomplex crystal and having excellent moldability, a high molecular weight, high crystallinity and a high melting point and a process for manufacturing the same. It is another object of the present invention to provide a composition comprising the polylactic acid and a molded product of the polylactic acid. The present invention is characterized from polylactic acid having a weight average molecular weight of 80,000 to 500,000 and a melting peak at 195° C. or higher which accounts for 80% or more of the total of melting peaks in the temperature elevation step when measured by a differential scanning calorimeter (DSC) and a process for manufacturing the same.
摘要翻译： 本发明的目的是提供含有立体络合物晶体的聚乳酸，并且具有优异的成型性，高分子量，高结晶度和高熔点及其制造方法。 本发明的另一个目的是提供包含聚乳酸和聚乳酸的模塑产品的组合物。 本发明的特征在于重均分子量为80,000〜500,000，熔点在195℃以上的聚乳酸，当温度升高步骤中的熔融峰的总量为80％以上时，其通过 差示扫描量热计（DSC）及其制造方法。
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公开(公告)号：US08263690B2
公开(公告)日：2012-09-11
申请号：US12294549
申请日：2007-03-28
IPC分类号： C07F9/40
CPC分类号： C08K5/0091 , C08J3/005 , C08J2367/04 , C08K5/5333 , C08L67/04 , C08L2205/02 , C08L2666/18
摘要： It is an object of the present invention to provide a composition which contains polylactic acid and has excellent heat stability, mechanical strength and color. The composition contains 0.001 to 0.1 part by weight of a metal catalyst and 0.001 to 0.5 part by weight of a phosphono-fatty acid ester based on 100 parts by weight of polylactic acid.
摘要翻译： 本发明的目的是提供含有聚乳酸并且具有优异的热稳定性，机械强度和颜色的组合物。 基于100重量份的聚乳酸，该组合物含有0.001〜0.1重量份的金属催化剂和0.001〜0.5重量份的膦酰基脂肪酸酯。
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公开(公告)号：US20090062437A1
公开(公告)日：2009-03-05
申请号：US12294549
申请日：2007-03-28
IPC分类号： C08K5/5333
CPC分类号： C08K5/0091 , C08J3/005 , C08J2367/04 , C08K5/5333 , C08L67/04 , C08L2205/02 , C08L2666/18
摘要： It is an object of the present invention to provide a composition which contains polylactic acid and has excellent heat stability, mechanical strength and color.The composition contains 0.001 to 0.1 part by weight of a metal catalyst and 0.001 to 0.5 part by weight of a phosphono-fatty acid ester based on 100 parts by weight of polylactic acid.
摘要翻译： 本发明的目的是提供含有聚乳酸并且具有优异的热稳定性，机械强度和颜色的组合物。 基于100重量份的聚乳酸，该组合物含有0.001〜0.1重量份的金属催化剂和0.001〜0.5重量份的膦酰基脂肪酸酯。
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公开(公告)号：US08211986B2
公开(公告)日：2012-07-03
申请号：US12521725
申请日：2007-08-10
申请人： Yuka Komazawa , Zhen Tang
发明人： Yuka Komazawa , Zhen Tang
IPC分类号： C08G63/91
CPC分类号： C08G63/08 , C08L2666/02 , C08L2666/14 , C09J153/00
摘要： It is an object of the present invention to provide a method for producing a polylactic acid block copolymer having high molecular weight, and in lower cost, wherein only a stereo-complex crystal is capable of growing, even when heat melting process is repeated. The present invention relates to a method for producing a polylactic acid block copolymer characterized in that (i) ring-opening polymerization of D-lactide (D component) is carried out in the presence of poly-L-lactic acid (L component), or (ii) ring-opening polymerization of L-lactide (L component) is carried out in the presence of poly-D-lactic acid (D component), and mass ratio of the D component and the L component is the D component/the L component=60/40 to 91/9, or the L component/the D component=60/40 to 91/9.
摘要翻译： 本发明的目的是提供一种制备具有高分子量的聚乳酸嵌段共聚物的方法，并且即使在重复加热熔融过程时，也只需立体络合物晶体即可生长。 聚乳酸嵌段共聚物的制造方法技术领域本发明涉及聚乳酸嵌段共聚物的制造方法，其特征在于，（I）D-乳酸（D成分）的开环聚合在聚-L-乳酸（L成分）的存在下进行， 或（ii）在聚-D-乳酸（D成分）的存在下进行L-丙交酯（L成分）的开环聚合，D成分和L成分的质量比为D成分/ L成分= 60/40〜91/9，L成分/ D成分= 60/40〜91/9。
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公开(公告)号：US20100324229A1
公开(公告)日：2010-12-23
申请号：US12521725
申请日：2004-08-10
申请人： Yuka Komazawa , Zhen Tang
发明人： Yuka Komazawa , Zhen Tang
IPC分类号： C08G63/08
CPC分类号： C08G63/08 , C08L2666/02 , C08L2666/14 , C09J153/00
摘要： It is an object of the present invention to provide a method for producing a polylactic acid block copolymer having high molecular weight, and in lower cost, wherein only a stereo-complex crystal is capable of growing, even when heat melting process is repeated. The present invention relates to a method for producing a polylactic acid block copolymer characterized in that (i) ring-opening polymerization of D-lactide (D component) is carried out in the presence of poly-L-lactic acid (L component), or (ii) ring-opening polymerization of L-lactide (L component) is carried out in the presence of poly-D-lactic acid (D component), and mass ratio of the D component and the L component is the D component/the L component=60/40 to 91/9, or the L component/the D component=60/40 to 91/9.
摘要翻译： 本发明的目的是提供一种制备具有高分子量的聚乳酸嵌段共聚物的方法，并且即使在重复加热熔融过程时，也只需立体络合物晶体即可生长。 聚乳酸嵌段共聚物的制造方法技术领域本发明涉及聚乳酸嵌段共聚物的制造方法，其特征在于，（I）D-乳酸（D成分）的开环聚合在聚-L-乳酸（L成分）的存在下进行， 或（ii）在聚-D-乳酸（D成分）的存在下进行L-丙交酯（L成分）的开环聚合，D成分和L成分的质量比为D成分/ L成分= 60/40〜91/9，L成分/ D成分= 60/40〜91/9。
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