RU2012134354A - Полиэтиленовые композиции с высокой прочностью расплава и способы их изготовления - Google Patents
Полиэтиленовые композиции с высокой прочностью расплава и способы их изготовления Download PDFInfo
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Abstract
1. Способ увеличения прочности расплава полиэтиленовой смолы, включающий стадии:a) выбор целевой полиэтиленовой смолы, у которой плотность, при определении согласно стандарту ASTM D792, составляет от 0,900 г/смдо 0,970 г/см, и индекс расплава, при определении согласно стандарту ASTM D1238 (2,16 кг, 190°C), составляет от 0,01 г/10 мин до 30 г/10 мин, причем упомянутая полиэтиленовая смола содержит менее чем 2000 частей на миллион соединений-антиоксидантов;b) получение конвертированной полиэтиленовой смолы посредством взаимодействие указанной полиэтиленовой смолы и генератора свободных радикалов с энергией разложения от -50 кДж/моль до -250 кДж/моль и пиковой температурой разложения, составляющей не менее чем 150°C и не более чем 280°C, предпочтительно не менее чем 160°C и не более чем 250°C, в количестве и в условиях, достаточных для увеличения прочности расплава полиэтиленовой смолы, до величины по меньшей мере на 20% выше, чем у контрольного материала, не реагировавшего с указанным генератором свободных радикалов.2. Способ по п.1, в котором генератор свободных радикалов представляет собой производное алкоксиамина, соответствующее формуле:(R)(R)N-O-R,где каждый из Rи R, независимо друг от друга, представляет собой атом водорода, C-C-алкил или C-C-арил или замещенные углеводородные группы, включающие O и/или N, и где Rи Rмогут вместе образовывать кольцевую структуру; и Rпредставляет собой атом водорода, углеводородную или замещенную углеводородную группу, включающую O и/или N.3. Способ по п.1, в котором производное алкоксиамина представляет собой сложный эфир гидроксиламина.4. Способ по п.3, в котором сложный эфир гидроксиламина представляет собой 9-(ацетилокси)-3,8,10-тр
Claims (16)
1. Способ увеличения прочности расплава полиэтиленовой смолы, включающий стадии:
a) выбор целевой полиэтиленовой смолы, у которой плотность, при определении согласно стандарту ASTM D792, составляет от 0,900 г/см3 до 0,970 г/см3, и индекс расплава, при определении согласно стандарту ASTM D1238 (2,16 кг, 190°C), составляет от 0,01 г/10 мин до 30 г/10 мин, причем упомянутая полиэтиленовая смола содержит менее чем 2000 частей на миллион соединений-антиоксидантов;
b) получение конвертированной полиэтиленовой смолы посредством взаимодействие указанной полиэтиленовой смолы и генератора свободных радикалов с энергией разложения от -50 кДж/моль до -250 кДж/моль и пиковой температурой разложения, составляющей не менее чем 150°C и не более чем 280°C, предпочтительно не менее чем 160°C и не более чем 250°C, в количестве и в условиях, достаточных для увеличения прочности расплава полиэтиленовой смолы, до величины по меньшей мере на 20% выше, чем у контрольного материала, не реагировавшего с указанным генератором свободных радикалов.
2. Способ по п.1, в котором генератор свободных радикалов представляет собой производное алкоксиамина, соответствующее формуле:
(R1)(R2)N-O-R3,
где каждый из R1 и R2, независимо друг от друга, представляет собой атом водорода, C4-C42-алкил или C4-C42-арил или замещенные углеводородные группы, включающие O и/или N, и где R1 и R2 могут вместе образовывать кольцевую структуру; и R3 представляет собой атом водорода, углеводородную или замещенную углеводородную группу, включающую O и/или N.
3. Способ по п.1, в котором производное алкоксиамина представляет собой сложный эфир гидроксиламина.
4. Способ по п.3, в котором сложный эфир гидроксиламина представляет собой 9-(ацетилокси)-3,8,10-триэтил-7,8,10-триметил-1,5-диокса-9-азаспиро[5.5]ундец-3-ил]метилоктадеканоат.
5. Композиция, включающая:
менее чем 100 мас.% полимера, полученного способом по п.1, в смеси с другой полиэтиленовой смолой, где целевой полимер, полученный способом по п.1, дополнительно характеризуется тем, что он содержит менее чем 1000 частей на миллион соединений-антиоксидантов.
6. Способ по любому из пп.1-4, где указанный конвертированный полиэтилен имеет плотность от 0,900 до 0,970 г/см3.
7. Способ по любому из пп.1-4, где указанный конвертированный полиэтилен имеет индекс расплава от 0,01 до 30 г/10 мин.
8. Способ по любому из пп.1-4, где у указанного конвертированного полиэтилена молекулярно-массовое распределение Mw/Mn составляет менее чем приблизительно 5.
9. Способ по любому из пп.1-4, где соотношение индексов расплава I10/I2 для указанного конвертированного полиэтилена составляет более чем 9.
10. Способ по любому из пп.1-4, где для указанного конвертированного полиэтилена соотношение [вязкость при 0,1 рад/с]/[вязкость при 100 рад/с], измеренное при 190°C, составляет более чем 8.
11. Способ по любому из пп.1-4, где у указанного конвертированного полиэтилена величина tgд при 0,1 рад/с, измеренная при 190°C, составляет менее чем 4.
12. Способ по любому из пп.1-4, где прочность расплава для указанного конвертированного полиэтилена, измеренная при 190°C, составляет более чем 5.
13. Способ по любому из пп.1-4, где величина gpcBR для указанного конвертированного полиэтилена составляет более чем 0,03.
14. Пленка, изготовленная из композиции по п.5.
15. Формованное изделие, изготовленное из композиции по п.5.
16. Экструдированное изделие, изготовленное из композиции по п.5.
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US12/685,148 US8653196B2 (en) | 2010-01-11 | 2010-01-11 | Method for preparing polyethylene with high melt strength |
US12/685,148 | 2010-01-11 | ||
PCT/US2011/020853 WO2011085379A1 (en) | 2010-01-11 | 2011-01-11 | High melt strength polyethylene compositions and methods for making the same |
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RU2012134431/04A RU2012134431A (ru) | 2010-01-11 | 2011-01-11 | Полиэтилен с высокой прочностью расплава для использования в пленках |
RU2012134319/04A RU2012134319A (ru) | 2010-01-11 | 2011-01-11 | Способ получения полиэтилена с высокой прочностью расплава |
RU2012134354/04A RU2012134354A (ru) | 2010-01-11 | 2011-01-11 | Полиэтиленовые композиции с высокой прочностью расплава и способы их изготовления |
RU2012134320/05A RU2012134320A (ru) | 2010-01-11 | 2011-01-11 | Толстые пленки, изготовленные экструзией с раздувкой |
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RU2012134319/04A RU2012134319A (ru) | 2010-01-11 | 2011-01-11 | Способ получения полиэтилена с высокой прочностью расплава |
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---|---|---|---|---|
US8653196B2 (en) * | 2010-01-11 | 2014-02-18 | Dow Global Technologies, Llc | Method for preparing polyethylene with high melt strength |
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