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1. 发明申请

WO2012020335A3 MODIFIED POLYLACTIC ACID FIBERS 审中-公开
标题翻译：改性聚乳酸纤维
公开(公告)号：WO2012020335A3
公开(公告)日：2012-06-07
申请号：PCT/IB2011053009
申请日：2011-07-06
申请人： KIMBERLY CLARK CO , TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01F6/92 , D01D5/08 , D01F1/10 , D01F6/62 , D04H1/42
CPC分类号： D01F6/625 , B29C47/04 , B29K2063/00 , B29K2067/046 , B29K2105/0005 , B29K2995/006 , B29K2995/0088 , C08G63/08 , C08L67/04 , C08L2203/12 , D01D5/38 , D01F1/02 , D01F6/92 , D04H3/011 , D04H3/16 , Y10T428/298 , Y10T442/608 , Y10T442/615 , C08L23/0884
摘要： A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. To minimize premature reaction, the polylactic acid and polyepoxide modifier are first blended together at a relatively low temperature(s). Nevertheless, a relatively high shear rate may be employed during blending to induce chain scission of the polylactic acid backbone, thereby making more hydroxyl and/or carboxyl groups available for subsequent reaction with the polyepoxide modifier. Once blended, the temperature(s) employed during extrusion of the blended composition can be selected to both melt the composition and initiate a reaction of the polyepoxide modifier with hydroxyl and/or carboxyl groups of the polylactic acid. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning.
摘要翻译：提供了一种形成生物可降解纤维的方法。该方法包括将聚乳酸与聚环氧化物改性剂共混以形成热塑性组合物，通过模头挤出热塑性组合物，然后使挤出的组合物通过模头形成纤维。不受理论限制，认为聚环氧化物改性剂与聚乳酸反应并导致其聚合物骨架的支化，由此在纤维纺丝期间改进其熔体强度和稳定性而不显着降低玻璃化转变温度。反应引起的支化也可以增加分子量，这可能导致纤维延展性改善以及在经受拉伸力时更好地耗散能量的能力。为了使过早反应最小化，首先将聚乳酸和聚环氧化物改性剂在相对较低的温度下共混在一起。尽管如此，在共混期间可以使用相对高的剪切速率以诱导聚乳酸骨架的断链，由此使得更多的羟基和/或羧基可用于随后与聚环氧化物改性剂反应。一旦混合，可以选择在共混组合物的挤出过程中使用的温度以既熔化组合物又引发聚环氧化物改性剂与聚乳酸的羟基和/或羧基的反应。通过对该方法的选择性控制，本发明人已经发现，所得到的纤维在熔体纺丝期间和之后均可表现出良好的机械性能。

2. 发明专利

AU2013217352A1 Modified polylactic acid fibers 未知
公开(公告)号：AU2013217352A1
公开(公告)日：2014-07-24
申请号：AU2013217352
申请日：2013-01-22
申请人： KIMBERLY CLARK CO
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01F8/14 , D01D5/34 , D01F1/10 , D04H1/4382
摘要： A multi-component fiber that includes a core component surrounded by a distinct sheath component is provided. The core component is formed primarily from polylactic acid and the sheath component is formed primarily from a polymeric toughening additive. The sheath/core configuration may provide a variety of different benefits to the resulting fiber. For instance, the polymeric toughening additive can help increase the ability of the fiber to absorb energy that arises from stresses imparted during fiber drawing, which increases the overall toughness and strength of the fibers. At the same time, the presence of the toughening additive in the sheath component can enhance the degree of bonding to other fibers (the same or different), such as when employed in a nonwoven web material. Another benefit of the present invention is that the sheath/core configuration may be formed from a thermoplastic composition in which the polylactic acid and polymeric toughening additive are blended together.

3. 发明公开

EP2812469A4 MODIFIED POLYLACTIC ACID FIBERS 有权
标题翻译：改性的聚乳酸
公开(公告)号：EP2812469A4
公开(公告)日：2015-10-07
申请号：EP13746953
申请日：2013-01-22
申请人： KIMBERLY CLARK CO
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01F8/14 , D01D5/34 , D01F1/10 , D04H1/4382
CPC分类号： D04H1/4326 , D01F1/10 , D01F6/92 , D01F8/14 , D04H1/4382 , D04H3/02

4. 发明公开

EP2603624A4 MODIFIED POLYLACTIC ACID FIBERS 有权
标题翻译：改性聚酯树脂
公开(公告)号：EP2603624A4
公开(公告)日：2014-01-08
申请号：EP11816160
申请日：2011-07-06
申请人： KIMBERLY CLARK CO
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01F6/92 , C08L67/04 , D01D5/08 , D01D5/38 , D01F1/10 , D01F6/62 , D04H1/42
CPC分类号： D01F6/625 , B29C47/04 , B29K2063/00 , B29K2067/046 , B29K2105/0005 , B29K2995/006 , B29K2995/0088 , C08G63/08 , C08L67/04 , C08L2203/12 , D01D5/38 , D01F1/02 , D01F6/92 , D04H3/011 , D04H3/16 , Y10T428/298 , Y10T442/608 , Y10T442/615 , C08L23/0884
摘要： A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. To minimize premature reaction, the polylactic acid and polyepoxide modifier are first blended together at a relatively low temperature(s). Nevertheless, a relatively high shear rate may be employed during blending to induce chain scission of the polylactic acid backbone, thereby making more hydroxyl and/or carboxyl groups available for subsequent reaction with the polyepoxide modifier. Once blended, the temperature(s) employed during extrusion of the blended composition can be selected to both melt the composition and initiate a reaction of the polyepoxide modifier with hydroxyl and/or carboxyl groups of the polylactic acid. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning.
摘要翻译：提供了一种形成可生物降解纤维的方法。该方法包括将聚乳酸与聚环氧化物改性剂混合以形成热塑性组合物，通过模头挤出热塑性组合物，然后使挤出的组合物通过模头形成纤维。不期望受理论的限制，据信聚环氧化物改性剂与聚乳酸反应并导致其聚合物主链的支化，从而在纤维纺丝期间提高其熔体强度和稳定性，而不显着降低玻璃化转变温度。反应诱导的分支也可以增加分子量，这可以导致改善的纤维延展性和当受到伸长力时更好地耗散能量的能力。为了最小化过早反应，首先将聚乳酸和聚环氧化物改性剂在相对较低的温度下共混在一起。然而，在共混期间可以采用相对高的剪切速率来诱导聚乳酸主链的断链，从而使得更多的羟基和/或羧基可用于随后与聚环氧化物改性剂的反应。一旦共混，可以选择在共混组合物的挤出期间使用的温度以使组合物熔融，并引发聚环氧化物改性剂与聚乳酸的羟基和/或羧基的反应。通过对该方法的选择性控制，本发明人已经发现，在熔融纺丝期间和之后，所得纤维可表现出良好的机械性能。

5. 发明专利

MX339287B FIBRAS DE ACIDO POLILACTICO MODIFICADAS. 未知
公开(公告)号：MX339287B
公开(公告)日：2016-05-18
申请号：MX2014009543
申请日：2013-01-22
申请人： KIMBERLY CLARK CO
发明人： MCENEANY RYAN J , TOPOLKARAEV VASILY A , EBY TOM , LARK TYLER J
IPC分类号： D01F11/16 , D01D5/34 , D01F1/10 , D01F8/14 , D04H1/4382
摘要： Se proporciona una fibra multicomponentes que incluye un componente núcleo rodeado por un componente de envoltura distinto. El componente núcleo se forma principalmente de ácido poliláctico y el componente de envoltura se forma principalmente de un aditivo endurecedor polimérico. La configuración envoltura/nucleo puede proporcionar una variedad de diferentes beneficios a la fibra resultante. Por ejemplo, el aditivo endurecedor polimérico puede ayudar a a aumentar la capacidad de la fibra para absorber la energía que surge de las tensiones durante el estiramiento de la fibra. Al mismo tiempo, la presencia del aditivo endurecedor en el componente de envoltura puede mejorar el grado de adherencia a otras fibras (iguales o diferentes), tal como cuando se emplea en un material de trama de tela no tejida. Otro beneficio de la presente invención es que la configuración envoltura/núcleo puede conformarse a partir de una composición termoplástica en la cual el ácido poliláctico y el aditivo endurecedor polimérico se mezclan juntos.

6. 发明专利

AU2013217352B2 Modified polylactic acid fibers 未知
公开(公告)号：AU2013217352B2
公开(公告)日：2016-12-01
申请号：AU2013217352
申请日：2013-01-22
申请人： KIMBERLY CLARK CO
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01F8/14 , D01D5/34 , D01F1/10 , D04H1/4382
摘要： A multi-component fiber that includes a core component surrounded by a distinct sheath component is provided. The core component is formed primarily from polylactic acid and the sheath component is formed primarily from a polymeric toughening additive. The sheath/core configuration may provide a variety of different benefits to the resulting fiber. For instance, the polymeric toughening additive can help increase the ability of the fiber to absorb energy that arises from stresses imparted during fiber drawing, which increases the overall toughness and strength of the fibers. At the same time, the presence of the toughening additive in the sheath component can enhance the degree of bonding to other fibers (the same or different), such as when employed in a nonwoven web material. Another benefit of the present invention is that the sheath/core configuration may be formed from a thermoplastic composition in which the polylactic acid and polymeric toughening additive are blended together.

7. 发明专利

AU2011288212B2 Modified polylactic acid fibers 未知
公开(公告)号：AU2011288212B2
公开(公告)日：2016-06-23
申请号：AU2011288212
申请日：2011-07-06
申请人： KIMBERLY CLARK CO
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01D5/08 , D01F1/10 , D01F6/62 , D01F6/92 , D04H1/42
摘要： A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. To minimize premature reaction, the polylactic acid and polyepoxide modifier are first blended together at a relatively low temperature(s). Nevertheless, a relatively high shear rate may be employed during blending to induce chain scission of the polylactic acid backbone, thereby making more hydroxyl and/or carboxyl groups available for subsequent reaction with the polyepoxide modifier. Once blended, the temperature(s) employed during extrusion of the blended composition can be selected to both melt the composition and initiate a reaction of the polyepoxide modifier with hydroxyl and/or carboxyl groups of the polylactic acid. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning.

8. 发明专利

AU2011288212A1 Modified polylactic acid fibers 未知
公开(公告)号：AU2011288212A1
公开(公告)日：2013-01-31
申请号：AU2011288212
申请日：2011-07-06
申请人： KIMBERLY CLARK CO
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01D5/08 , D01F1/10 , D01F6/62 , D01F6/92 , D04H1/42
摘要： A method for forming biodegradable fibers is provided. The method includes blending polylactic acid with a polyepoxide modifier to form a thermoplastic composition, extruding the thermoplastic composition through a die, and thereafter passing the extruded composition through a die to form a fiber. Without intending to be limited by theory, it is believed that the polyepoxide modifier reacts with the polylactic acid and results in branching of its polymer backbone, thereby improving its melt strength and stability during fiber spinning without significantly reducing glass transition temperature. The reaction-induced branching can also increase molecular weight, which may lead to improved fiber ductility and the ability to better dissipate energy when subjected to an elongation force. To minimize premature reaction, the polylactic acid and polyepoxide modifier are first blended together at a relatively low temperature(s). Nevertheless, a relatively high shear rate may be employed during blending to induce chain scission of the polylactic acid backbone, thereby making more hydroxyl and/or carboxyl groups available for subsequent reaction with the polyepoxide modifier. Once blended, the temperature(s) employed during extrusion of the blended composition can be selected to both melt the composition and initiate a reaction of the polyepoxide modifier with hydroxyl and/or carboxyl groups of the polylactic acid. Through selective control over this method, the present inventors have discovered that the resulting fibers may exhibit good mechanical properties, both during and after melt spinning.

9. 发明专利

MX2014009543A FIBRAS DE ACIDO POLILACTICO MODIFICADAS. 未知
公开(公告)号：MX2014009543A
公开(公告)日：2014-11-12
申请号：MX2014009543
申请日：2013-01-22
申请人： KIMBERLY CLARK CO
发明人： MCENEANY RYAN J , TOPOLKARAEV VASILY A , EBY TOM , LARK TYLER J
IPC分类号： D01F8/14 , D01D5/34 , D01F1/10 , D04H1/4382
摘要： Se proporciona una fibra multicomponentes que incluye un componente núcleo rodeado por un componente de envoltura distinto. El componente núcleo se forma principalmente de ácido poliláctico y el componente de envoltura se forma principalmente de un aditivo endurecedor polimérico. La configuración envoltura/nucleo puede proporcionar una variedad de diferentes beneficios a la fibra resultante. Por ejemplo, el aditivo endurecedor polimérico puede ayudar a a aumentar la capacidad de la fibra para absorber la energía que surge de las tensiones durante el estiramiento de la fibra. Al mismo tiempo, la presencia del aditivo endurecedor en el componente de envoltura puede mejorar el grado de adherencia a otras fibras (iguales o diferentes), tal como cuando se emplea en un material de trama de tela no tejida. Otro beneficio de la presente invención es que la configuración envoltura/núcleo puede conformarse a partir de una composición termoplástica en la cual el ácido poliláctico y el aditivo endurecedor polimérico se mezclan juntos.

10. 发明专利

MX2013001758A FIBRAS DE ACIDO POLILACTICO MODIFICADAS. 未知
公开(公告)号：MX2013001758A
公开(公告)日：2013-04-03
申请号：MX2013001758
申请日：2011-07-06
申请人： KIMBERLY CLARK CO
发明人： TOPOLKARAEV VASILY A , MCENEANY RYAN J , EBY TOM , LARK TYLER J
IPC分类号： D01F6/92 , D01D5/08 , D01F1/10 , D01F6/62 , D04H1/42
摘要： Se proporciona un método para formar fibras biodegradables. El método incluye el mezclar el pacido poliláctico con un modificador de poliepóxido para formar una composición termoplástica, extrudir la composición termoplástica a través de una matriz, y después pasar la composición extrudida a través de una matriz para formar una fibra. Sin intentar el estar limitado por la teoría, se cree que el modificador de poliepóxido reacciona con el ácido poliláctico y resulta en la ramificación de su columna de polímero, mejorando por tanto su resistencia de derretido y estabilidad durante el hilado de la fibra sin significativamente reducir la temperatura de transición del vidrio. La ramificación inducida por reacción también puede aumentar el peso molecular, lo cual puede llevar a una ductilidad de fibra mejorada y a una habilidad para disipar mejor la energía cuando se somete a una fuerza de alargamiento. Para minimizar la reacción prematura, el ácido poliláctico y el modificador de poliepóxido son primero mezclados juntos a una temperatura o temperaturas relativamente bajas. No obstante, una tasa de corte relativamente alto puede ser empleada durante el mezclado para inducir la escisión de cadena de la columna de ácido poliláctico, haciendo por tanto disponibles más grupos de carboxilo y/o de hidroxilo para una reacción subsecuente con el modificador de poliepóxido. Una vez mezclada, la temperatura o temperaturas empleadas durante la extrusión de la composición mezclada pueden ser seleccionadas para ambos derretir la composición e iniciar la reacción del modificador de poliepóxido con los grupos de hidroxilo y/o de carboxilo del ácido poliláctico. A través del control selectivo sobre este método, los presentes inventores han descubierto que las fibras resultantes pueden exhibir buenas propiedades mecánicas, tanto durante el hilado con derretido como después de este.

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