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1. 发明申请

WO2010044112A1 PROCESS FOR CONTROLLED DEGRADATION OF POLYHYDROXYALKANOATES AND PRODUCTS OBTAINABLE THEREFROM 审中-公开
标题翻译：控制降解聚羟基烷酸酯和可产生的产品的方法
公开(公告)号：WO2010044112A1
公开(公告)日：2010-04-22
申请号：PCT/IT2008/000646
申请日：2008-10-15
申请人： ALMA MATER STUDIORUM , INSTITUTE OF POLYMERS AND CARBON MATERIALS , SCANDOLA, Mariastella , MAZZOCCHETTI, Laura , FOCARETE, Maria, Letizia , KAWALEC, Michal , KURCOK, Piotr , ADAMUS, Grazyna , KOWALCZUK, Marek
发明人： SCANDOLA, Mariastella , MAZZOCCHETTI, Laura , FOCARETE, Maria, Letizia , KAWALEC, Michal , KURCOK, Piotr , ADAMUS, Grazyna , KOWALCZUK, Marek
IPC分类号： C08G63/06 , C08G63/91
CPC分类号： C08G63/912 , C08G63/06
摘要： The present invention relates to a process for producing polyhydroxyalkanoate oligomers and/or polymers of reduced molecular weight, which comprises reacting at least one polyhydroxyalkanoate (PHA) with at least one carbonate salt at a temperature of from 50°C to 300°C, preferably from 120°C to 200°C. The above reaction allows a controlled degradation of the PHA chains which yields oligomers and/or polymers having a controlled molecular weight, which can be modulated in view of the specific application for which the oligomers and/or polymers are intended. Moreover, during the reaction carbon dioxide evolves which produces a foamed material which can be easily processed on an industrial scale. Additionally, the above oligomers and/or polymers, having an end-group bearing a double bond C=C, particularly a crotonate end-group for PHB, can be subjected to subsequent modifications to obtain a wide variety of functional end-groups, for instance carboxyl, carboxylate, hydroxyl, dihydroxyl, oxirane ring, halogen atom. Moreover, the low molecular weight PHAs may be used in the area of controlled delivery systems in agro-chemistry, in the cosmetic industry, in medicine in the form of nano- or microspheres, in household products and in coating systems.
摘要翻译：本发明涉及一种生产降低分子量的聚羟基链烷酸酯低聚物和/或聚合物的方法，该方法包括在50℃至300℃的温度下使至少一种聚羟基链烷酸酯（PHA）与至少一种碳酸盐反应，优选从120℃到200℃。上述反应允许PHA链的受控降解，其产生具有受控分子量的低聚物和/或聚合物，其可以根据预期的低聚物和/或聚合物的具体应用进行调节。此外，在反应过程中，二氧化碳逸出，产生可以以工业规模容易地加工的泡沫材料。此外，具有双键C = C的端基，特别是PHB的巴豆酸酯端基的上述低聚物和/或聚合物可以进行随后的修饰以获得多种功能性端基，对于羧基，羧基，羟基，二羟基，环氧乙烷环，卤素原子。此外，低分子量PHA可用于农业化学，化妆品工业中的控制递送系统，以纳米或微球形式在家用产品和涂料体系中的医药领域。

2. 发明申请

WO2007107808A1 METHOD OF CONTROLLING THERMAL DEGRADATION OF ANIONICALLY TERMINATED POLYMERS AND MATERIALS OBTAINED 审中-公开
标题翻译：控制阳离子终止聚合物和材料的热降解方法
公开(公告)号：WO2007107808A1
公开(公告)日：2007-09-27
申请号：PCT/IB2006/000898
申请日：2006-03-20
申请人： ALMA MATER STUDIORIUM - UNIVERSITA' DI BOLOGNA , INSTITUTE OF POLYMERS AND CARBON MATERIALS , SCANDOLA, Mariastella , FOCARETE, Maria, Letizia , FOLTRAN, Ismaela , KAWALEC, Michal , KURCOK, Piotr , ADAMUS, Grazyna , KOWALCZUK, Marek
发明人： SCANDOLA, Mariastella , FOCARETE, Maria, Letizia , FOLTRAN, Ismaela , KAWALEC, Michal , KURCOK, Piotr , ADAMUS, Grazyna , KOWALCZUK, Marek
IPC分类号： C08G85/00 , C08L67/04
CPC分类号： C08G63/912 , C08G63/78 , C08L67/04 , C08L2666/18
摘要： The present invention relates to a polymer having improved thermal stability and to a method for preparing said polymer that enables control of its thermal degradation and stability via chemical structure of the polymer end groups. Further the present invention relates to a blend comprising said polymer. Finally, the present invention relates to use of said polymer or blend for the preparation of polymeric materials for applications in medical, environmental, agricultural and advance materials.
摘要翻译：本发明涉及一种具有改进的热稳定性的聚合物和一种制备所述聚合物的方法，所述聚合物能够通过聚合物端基的化学结构控制其热降解和稳定性。此外，本发明涉及包含所述聚合物的共混物。最后，本发明涉及所述聚合物或共混物用于制备用于医疗，环境，农业和先进材料的聚合材料的用途。

3. 发明申请

WO2010044112A8 PROCESS FOR CONTROLLED DEGRADATION OF POLYHYDROXYALKANOATES AND PRODUCTS OBTAINABLE THEREFROM 审中-公开
标题翻译：控制降解聚羟基烷酸酯的方法及由此得到的产品
公开(公告)号：WO2010044112A8
公开(公告)日：2010-06-24
申请号：PCT/IT2008000646
申请日：2008-10-15
申请人： UNIV BOLOGNA ALMA MATER , INST OF POLYMERS AND CARBON MA , SCANDOLA MARIASTELLA , MAZZOCCHETTI LAURA , FOCARETE MARIA LETIZIA , KAWALEC MICHAL , KURCOK PIOTR , ADAMUS GRAZYNA , KOWALCZUK MAREK
发明人： SCANDOLA MARIASTELLA , MAZZOCCHETTI LAURA , FOCARETE MARIA LETIZIA , KAWALEC MICHAL , KURCOK PIOTR , ADAMUS GRAZYNA , KOWALCZUK MAREK
IPC分类号： C08G63/06 , C08G63/91
CPC分类号： C08G63/912 , C08G63/06
摘要： The present invention relates to a process for producing polyhydroxyalkanoate oligomers and/or polymers of reduced molecular weight, which comprises reacting at least one polyhydroxyalkanoate (PHA) with at least one carbonate salt at a temperature of from 50°C to 300°C, preferably from 120°C to 200°C. The above reaction allows a controlled degradation of the PHA chains which yields oligomers and/or polymers having a controlled molecular weight, which can be modulated in view of the specific application for which the oligomers and/or polymers are intended. Moreover, during the reaction carbon dioxide evolves which produces a foamed material which can be easily processed on an industrial scale. Additionally, the above oligomers and/or polymers, having an end-group bearing a double bond C=C, particularly a crotonate end-group for PHB, can be subjected to subsequent modifications to obtain a wide variety of functional end-groups, for instance carboxyl, carboxylate, hydroxyl, dihydroxyl, oxirane ring, halogen atom. Moreover, the low molecular weight PHAs may be used in the area of controlled delivery systems in agro-chemistry, in the cosmetic industry, in medicine in the form of nano- or microspheres, in household products and in coating systems.
摘要翻译：本发明涉及生产聚羟基链烷酸酯低聚物和/或分子量降低的聚合物的方法，其包括使至少一种聚羟基链烷酸酯（PHA）与至少一种碳酸盐在50℃至300℃的温度下反应，优选从120℃到200℃。上述反应允许PHA链的受控降解，其产生具有可控分子量的低聚物和/或聚合物，考虑到低聚物和/或聚合物预期的特定应用，可调节该分子量和/或聚合物。而且，在反应过程中产生二氧化碳，产生易于在工业规模上加工的发泡材料。另外，具有带有双键C = C的端基，特别是PHB的巴豆酸酯端基的上述低聚物和/或聚合物可以进行后续修饰以获得各种各样的官能端基，用于例如羧基，羧酸酯，羟基，二羟基，环氧乙烷环，卤素原子。此外，低分子量PHA可用于农业化学，化妆品工业中的控制递送系统，纳米或微球体形式的药物，家用产品和涂布系统中。

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