RU2000124330A - BIODEGRADABLE POLYMERS ARE ABLE TO RECOVERY THE FORM - Google Patents

BIODEGRADABLE POLYMERS ARE ABLE TO RECOVERY THE FORM

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Publication number
RU2000124330A
RU2000124330A RU2000124330/14A RU2000124330A RU2000124330A RU 2000124330 A RU2000124330 A RU 2000124330A RU 2000124330/14 A RU2000124330/14 A RU 2000124330/14A RU 2000124330 A RU2000124330 A RU 2000124330A RU 2000124330 A RU2000124330 A RU 2000124330A
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Russia
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polymer
segment
composition according
segments
hard
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RU2000124330/14A
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Russian (ru)
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RU2215542C2 (en
Inventor
Роберт С. ЛЭНДЖЕР
Андреас ЛЕНДЛЯЙН
Аннетте ШМИДТ
Ханс ГРАБЛОВИТЦ
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Массачусетс Инститьют Оф Текнолоджи
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Publication of RU2215542C2 publication Critical patent/RU2215542C2/en

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Claims (26)

1. Разлагающаяся полимерная композиция, способная к восстановлению формы, содержащая (1) жесткие и мягкие сегменты или (2) по меньшей мере, один мягкий сегмент, который является сшитым ковалентно или ионно, или (3) полимерные смеси, в которой первоначальная форма полимера восстанавливается путем изменения температуры или путем использования других факторов, таких как свет.1. A degradable polymer composition capable of restoring shape, containing (1) hard and soft segments or (2) at least one soft segment that is crosslinked covalently or ionically, or (3) polymer mixtures in which the initial polymer form restored by changing temperature or by using other factors, such as light. 2. Композиция по п. 1, содержащая а) по меньшей мере, один жесткий сегмент, который имеет Тперех между -40 и 270oС; в) по меньшей мере, один мягкий сегмент, который имеет Тперех, по меньшей мере, на 10oС ниже, чем жесткий сегмент (сегменты), который связан с, по меньшей мере, одним жестким сегментом, в которой, по меньшей мере, один из жестких или мягких сегментов включает разлагающийся участок, или, по меньшей мере, один из жестких сегментов связан с, по меньшей мере, одним из мягких сегментов посредством разрушающейся связи.2. The composition according to p. 1, containing a) at least one hard segment, which has Tpere between -40 and 270 o C; c) at least one soft segment, which has Tpere at least 10 o With lower than the hard segment (s), which is associated with at least one hard segment, in which at least one of the hard or soft segments includes a decomposable portion, or at least one of the hard segments is connected to at least one of the soft segments via a collapsing bond. 3. Композиция по п. 2, в которой Тперех жесткого сегмента находится в интервале между 30 и 150oС.3. The composition according to p. 2, in which Tpere hard segment is in the range between 30 and 150 o C. 4. Композиция по п. 3, в которой Тперех местного сегмента находится в интервале между 30 и 100oС.4. The composition according to p. 3, in which Terekh local segment is in the range between 30 and 100 o C. 5. Композиция по п. 2, в которой Тперех мягкого сегмента (сегментов) является, по меньшей мере, на 20oС ниже Тперех жесткого сегмента (сегментов).5. The composition according to p. 2, in which Tpere soft segment (s) is at least 20 o below Tpere hard segment (s). 6. Композиция по п. 2, в которой, по меньшей мере, один из жестких и мягких сегментов является термопластичным полимером. 6. The composition according to p. 2, in which at least one of the hard and soft segments is a thermoplastic polymer. 7. Композиция по п. 2, в которой жесткий сегмент содержит циклические участки. 7. The composition according to claim 2, in which the hard segment contains cyclic sections. 8. Композиция по п. 2, в которой массовое соотношение жестких и мягких сегментов находится между примерно 5: 95 и 95: 5. 8. The composition according to p. 2, in which the mass ratio of hard and soft segments is between about 5: 95 and 95: 5. 9. Композиция по п. 1, в которой полимер, способный к восстановлению формы, выбирается из группы, состоящей из привитых полимеров, линейных полимеров и дендримерных полимеров. 9. The composition according to claim 1, in which the polymer, capable of restoring shape, is selected from the group consisting of grafted polymers, linear polymers and dendrimer polymers. 10. Композиция по п. 1, в которой полимер содержит разлагающийся участок, выбранный из группы, состоящей из полигидроксикислот, поли(простой эфир)(сложных эфиров), полиортоэфиров, поли(аминокислот), синтетических поли(аминокислот), полиангидридов, поликарбонатов, поли(гидроксиалканоатов), и поли(ε-капролактонов). 10. The composition of claim 1, wherein the polymer comprises a degradable portion selected from the group consisting of polyhydroxy acids, poly (ether) (esters), polyorthoesters, poly (amino acids), synthetic poly (amino acids), polyanhydrides, polycarbonates, poly (hydroxyalkanoates), and poly (ε-caprolactones). 11. Композиция по п. 1, в которой полимер содержит биоразрушающуюся связь, выбранную из группы, состоящей из сложноэфирных групп, карбонатных групп, амидных групп, ангидридных групп и ортосложноэфирных групп. 11. The composition according to claim 1, in which the polymer contains a biodegradable bond selected from the group consisting of ester groups, carbonate groups, amide groups, anhydride groups and ortho-ester groups. 12. Композиция по п. 1, в которой полимер является полностью биоразлагающимся. 12. The composition of claim 1, wherein the polymer is completely biodegradable. 13. Композиция по п. 1, содержащая разлагающийся термореактивный полимер, который содержит ковалентно сшитый кристаллизующийся мягкий сегмент, имеющий Тпл между 250oС и -40oС, или ковалентно сшитый мягкий сегмент, имеющий Тперех между 250oС и -60oС.13. A composition according to Claim. 1, comprising a degradable thermoset polymer that comprises a covalently crosslinked crystallizable soft segment having a Tm between 250 o C and -40 o C, or a covalently crosslinked soft segment having a Ttrans between 250 o C and -60 o C. . 14. Композиция по п. 13, в которой разлагающийся термореактивный полимер содержит ковалентно сшитый кристаллизующийся мягкий сегмент, имеющий Тпл между 200oС и 0oС, или ковалентно сшитый мягкий сегмент, имеющий Тперех между 200oС и 0oС.14. The composition according to claim. 13 wherein the degradable thermoset polymer comprises a covalently crosslinked crystallizable soft segment having a Tm between 200 o C and 0 o C or a covalently cross-linked soft segment having a Ttrans between 200 o C and 0 o C. 15. Композиция по п. 1, содержащая а) по меньшей мере, один первый сегмент, который имеет Тперех между -40 и 270oС, в) по меньшей мере, один второй сегмент, который связан с, по меньшей мере, одним первым сегментом, и который содержит ионные взаимодействия достаточной прочности, чтобы второй сегмент был способен образовать физическую сшивку, иную, чем точка плавления или стеклование, в которой, по меньшей мере, один из первых или вторых сегментов включает разлагающийся участок, или, по меньшей мере, один из первых сегментов связан с, по меньшей мере, одним из вторых сегментов посредством биоразрушающейся связи.15. The composition according to p. 1, containing a) at least one first segment, which has Tpere between -40 and 270 o C, c) at least one second segment, which is associated with at least one first segment, and which contains ionic interactions of sufficient strength so that the second segment is able to form physical crosslinking other than the melting point or glass transition, in which at least one of the first or second segments includes a decomposable section, or at least one of the first segments is associated with at least about one of the second segments through a biodegradable bond. 16. Композиция по п. 15, в которой ионное взаимодействие содержит полиэлектролитные сегменты, или полиэлектролитные сегменты и ионы, или полианионный сегмент и поликатионный сегмент, или надмолекулярные эффекты на основе высокоорганизованных водородных связей. 16. The composition of claim 15, wherein the ionic interaction comprises polyelectrolyte segments, or polyelectrolyte segments and ions, or a polyanionic segment and a polycationic segment, or supramolecular effects based on highly organized hydrogen bonds. 17. Композиция по п. 1, в которой полимер имеет обратный температурный эффект, где композиция восстанавливает свою форму при охлаждении ниже ее температуры восстановления формы. 17. The composition according to p. 1, in which the polymer has an inverse temperature effect, where the composition restores its shape upon cooling below its temperature of restoration of the form. 18. Композиция по п. 1, в которой полимер изменяет форму под действием света. 18. The composition according to p. 1, in which the polymer changes shape under the influence of light. 19. Композиция по п. 1, в которой полимер является полимерной смесью. 19. The composition of claim 1, wherein the polymer is a polymer mixture. 20. Композиция по п. 19, в которой полимерная смесь выбирается из группы, состоящей из физических смесей полимера, смесей полимеров, содержащих жесткие сегменты с различными Тперех и мягкие сегменты, имеющие такие же Тперех, смесей многоблочных сополимеров, в которых, по меньшей мере, один из сегментов первого сополимера является смешивающимся с, по меньшей мере, одним из сегментов второго сополимера, и смесей, по меньшей мере, одного многоблочного сополимера и, по меньшей мере, одного гомополимера или сополимера. 20. The composition according to p. 19, in which the polymer mixture is selected from the group consisting of physical polymer mixtures, polymer blends containing hard segments with different Tpere and soft segments having the same Tpere, multiblock copolymer mixtures in which at least , one of the segments of the first copolymer is miscible with at least one of the segments of the second copolymer, and mixtures of at least one multiblock copolymer and at least one homopolymer or copolymer. 21. Композиция по п. 1, содержащая покрытие, изменяющее разложение полимера, способного к восстановлению формы. 21. The composition according to p. 1, containing a coating that modifies the decomposition of the polymer, capable of restoring shape. 22. Изделие, содержащее разлагающуюся полимерную композицию, способную к восстановлению формы, по любому из пп. 1-21. 22. The product containing a decomposable polymer composition capable of restoring shape, according to any one of paragraphs. 1-21. 23. Изделие по п. 22, содержащее агент, выбранный из группы, состоящей из терапевтических, диагностических и профилактических агентов. 23. The product according to p. 22, containing an agent selected from the group consisting of therapeutic, diagnostic and prophylactic agents. 24. Изделие по п. 22, в котором изделие является имплантируемым, а биоразлагающийся полимер, способный к восстановлению формы, является биосовместимым. 24. The product of claim 22, wherein the product is implantable and the biodegradable polymer capable of restoring shape is biocompatible. 25. Изделие по п. 24, в котором полимер, способный к восстановлению формы, не содержит ароматических групп. 25. The product according to p. 24, in which the polymer, capable of restoring shape, does not contain aromatic groups. 26. Изделие по п. 22, в котором изделие является медицинским устройством, выбранным из группы, состоящей из стентов, катетеров, протезов, трансплантатов, винтов, штифтов, насосов и сеток. 26. The product according to p. 22, in which the product is a medical device selected from the group consisting of stents, catheters, prostheses, grafts, screws, pins, pumps and nets.
RU2000124330/14A 1998-02-23 1999-02-23 Biodecomposing polymers able recovery of form RU2215542C2 (en)

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US60/075,523 1998-02-23

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