RU2012154327A - Композиция, подходящая для стретч-худ пленки, способ ее получения и изготовленные из нее изделия - Google Patents

Композиция, подходящая для стретч-худ пленки, способ ее получения и изготовленные из нее изделия Download PDF

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RU2012154327A
RU2012154327A RU2012154327/05A RU2012154327A RU2012154327A RU 2012154327 A RU2012154327 A RU 2012154327A RU 2012154327/05 A RU2012154327/05 A RU 2012154327/05A RU 2012154327 A RU2012154327 A RU 2012154327A RU 2012154327 A RU2012154327 A RU 2012154327A
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multilayer film
inner layer
less
polyethylene copolymer
film according
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Прашант МАНДАРЕ
Грегори БАНКЕР
Раджен М. ПАТЕЛ
И Цзинь
Селим БЕНСЭСОН
Мехмет ДЕМИРОРС
Тереза Дж. ХЕРМЕЛ-ДЭВИДОК
Сара М. ХЕЙН
Хосе Е. РУИС
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ДАУ ГЛОБАЛ ТЕКНОЛОДЖИЗ ЭлЭлСи
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    • C08L23/08—Copolymers of ethene
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

1. Многослойная пленка, у которой толщина составляет, по меньшей мере, 3 мил (76,2 мкм), включая, по меньшей мере, один внутренний слой и два внешних слоя, где внутренний слой содержит, по меньшей мере, 50 масс.% полиэтиленового сополимера, у которого индекс текучести расплава составляет менее чем 2 г/10 мин, плотность составляет менее чем или равна 0,910 г/см, полная теплота плавления составляет менее чем 120 Дж/г, и теплота плавления выше 115°C составляет менее чем 5 Дж/г, причем полная теплота плавления внутреннего слоя меньше, чем теплота плавления любого из двух внешних слоев, и многослойная пленка имеет упругое восстановление, составляющее, по меньшей мере, 40% при растяжении до 100% удлинения.2. Многослойная пленка по п. 1, в которой внешние слои составляют менее чем 50% суммарной массы пленки.3. Многослойная пленка по п. 1, которая содержит 3 слоя и изготовлена методом экструзии с раздувом.4. Структура стретч-худ пленки, полученная из пленки по пп. 1, 2 или 3.5. Многослойная пленка по п. 1, в которой полиэтиленовый сополимер внутреннего слоя имеет значение M/M, составляющее, по меньшей мере, 2,5.6. Многослойная пленка по п. 1, в которой полиэтиленовый сополимер внутреннего слоя имеет константу распределения сомономера, составляющую более чем приблизительно 45 и вплоть до 400, и в которой полиэтиленовый сополимер содержит в сумме менее чем 120 ненасыщенных звеньев на 1 млн атомов углерода.7. Многослойная пленка по п. 1, в которой полиэтиленовый сополимер внутреннего слоя содержит вплоть до приблизительно 3 длинноцепочечных ветвей на 1000 атомов углерода.8. Многослойная пленка по п. 6, в которой полиэтиленовый сополимер внутреннего слоя также содержит ме�

Claims (9)

1. Многослойная пленка, у которой толщина составляет, по меньшей мере, 3 мил (76,2 мкм), включая, по меньшей мере, один внутренний слой и два внешних слоя, где внутренний слой содержит, по меньшей мере, 50 масс.% полиэтиленового сополимера, у которого индекс текучести расплава составляет менее чем 2 г/10 мин, плотность составляет менее чем или равна 0,910 г/см3, полная теплота плавления составляет менее чем 120 Дж/г, и теплота плавления выше 115°C составляет менее чем 5 Дж/г, причем полная теплота плавления внутреннего слоя меньше, чем теплота плавления любого из двух внешних слоев, и многослойная пленка имеет упругое восстановление, составляющее, по меньшей мере, 40% при растяжении до 100% удлинения.
2. Многослойная пленка по п. 1, в которой внешние слои составляют менее чем 50% суммарной массы пленки.
3. Многослойная пленка по п. 1, которая содержит 3 слоя и изготовлена методом экструзии с раздувом.
4. Структура стретч-худ пленки, полученная из пленки по пп. 1, 2 или 3.
5. Многослойная пленка по п. 1, в которой полиэтиленовый сополимер внутреннего слоя имеет значение Mw/Mn, составляющее, по меньшей мере, 2,5.
6. Многослойная пленка по п. 1, в которой полиэтиленовый сополимер внутреннего слоя имеет константу распределения сомономера, составляющую более чем приблизительно 45 и вплоть до 400, и в которой полиэтиленовый сополимер содержит в сумме менее чем 120 ненасыщенных звеньев на 1 млн атомов углерода.
7. Многослойная пленка по п. 1, в которой полиэтиленовый сополимер внутреннего слоя содержит вплоть до приблизительно 3 длинноцепочечных ветвей на 1000 атомов углерода.
8. Многослойная пленка по п. 6, в которой полиэтиленовый сополимер внутреннего слоя также содержит менее чем 20 винилиденовых ненасыщенных звеньев на 1 млн атомов углерода.
9. Многослойная пленка по п. 1, в которой полиэтиленовый сополимер внутреннего слоя включает один пик плавления на кривой ДСК.
RU2012154327/05A 2010-05-17 2011-05-17 Композиция, подходящая для стретч-худ пленки, способ ее получения и изготовленные из нее изделия RU2012154327A (ru)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/781,247 2010-05-17
US12/781,247 US8173232B2 (en) 2009-07-01 2010-05-17 Stretch hood films
PCT/US2011/036788 WO2011146468A1 (en) 2010-05-17 2011-05-17 A composition suitable for stretch hood, method of producing the same, and articles made therefrom

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MX2012013340A (es) 2013-05-01
US8173232B2 (en) 2012-05-08
CN103003068A (zh) 2013-03-27
CN103003068B (zh) 2016-01-20
AR081916A1 (es) 2012-10-31
US20110003129A1 (en) 2011-01-06
JP2013532077A (ja) 2013-08-15
MY181926A (en) 2021-01-14
KR20130113942A (ko) 2013-10-16
EP2571690A1 (en) 2013-03-27
EP2571690B1 (en) 2014-01-01
WO2011146468A1 (en) 2011-11-24
BR112012029165A2 (pt) 2017-02-21
EP2571690B2 (en) 2024-01-03
JP5824512B2 (ja) 2015-11-25
TW201144069A (en) 2011-12-16
ES2453115T3 (es) 2014-04-04

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