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    Fitment with propylene-based blend component and flexible container with same
    1.
    发明授权
    Fitment with propylene-based blend component and flexible container with same 有权

    公开(公告)号：US11046494B2

    公开(公告)日：2021-06-29

    申请号：US16332893

    申请日：2017-09-26

    申请人： Dow Global Technologies LLC

    发明人： Sydney E. Hansen ,  Mustafa Bilgen

    IPC分类号： B65D75/58 ,  B32B1/02 ,  B32B1/08 ,  B65D77/06 ,  B32B27/32 ,  B65D81/20 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16

    摘要： The present disclosure provides a fitment. In an embodiment, the fitment includes a top portion, a base, and a channel extending through the top portion and the base for passage of a flowable material. The fitment is composed of a polymeric composition. The polymeric composition comprises: (i) from 60 weight % to 90 weight % of a propylene-based polymer having a density of 0.900 g/cc and a melt flow rate greater than 10.0 g/10 min; and (ii) from 40 weight % to 10 weight % of a propylene-based plastomer or elastomer (“PBPE”) having a density less than 0.900 g/cc, and a melt flow rate (MFR) from 5 g/10 min to 30 g/10 min. The present disclosure also provides a process for sealing multilayer films to the base of the fitment and the resultant flexible container formed from the process.

    Package with peelable and non-peelable heat seals
    2.
    发明授权
    Package with peelable and non-peelable heat seals 有权

    公开(公告)号：US10464729B2

    公开(公告)日：2019-11-05

    申请号：US15781854

    申请日：2016-12-12

    申请人： Dow Global Technologies LLC

    发明人： Claudia Hernandez ,  Mustafa Bilgen

    IPC分类号： B65D75/58 ,  B32B7/12 ,  B32B15/10 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  B32B3/04 ,  B65D30/00 ,  B65D30/08 ,  B65D33/16

    摘要： A package, e.g., a pouch, comprising: (A) An exterior surface comprising oriented-polypropylene (OPP), and (B) An interior surface comprising a blend, in weight percent based on the weight of the blend, of: (1) From 30 to 80 wt % of a propylene-based plastomer or elastomer (PBPE), and (2) From 20 to 70 wt % of low density polyethylene (LDPE); the package further comprising (C) A peelable end seal formed by joining in a heat seal two sections of the interior surface, the heat seal having a seal strength of 1 to 4 pounds per inch (lb/in) (4.48 to 17.9 Newton (N)/25.4 millimeter (mm)), and (D) A lap seal formed by joining in a heat seal a section of the interior surface with a section of the exterior surface, the heat seal having a seal strength of greater than or equal to (≥) 15 lb/in (67.2 N/25.4 mm).

    POLYOLEFIN COMPOSITION
    4.
    发明申请
    POLYOLEFIN COMPOSITION 有权
    聚烯烃组合物

    公开(公告)号：US20150148490A1

    公开(公告)日：2015-05-28

    申请号：US14141835

    申请日：2013-12-27

    申请人： DOW GLOBAL TECHNOLOGIES LLC

    发明人： Mridula Kapur ,  Mehmet Demirors ,  Pradeep Jain ,  Philip P. Fontaine ,  Douglas S. Ginger ,  David T. Gillespie ,  Mustafa Bilgen

    IPC分类号： C08L23/08

    CPC分类号： C08J5/18 ,  B65D51/26 ,  C07F5/00 ,  C07F7/1804 ,  C08F4/64186 ,  C08F210/14 ,  C08F210/16 ,  C08F2500/03 ,  C08J2323/08 ,  C08J2423/08 ,  C08L23/02 ,  C08L23/06 ,  C08L23/08 ,  C08L23/0815 ,  C08L2203/16 ,  C08L2205/02 ,  C08L2205/025 ,  C08L2205/03 ,  Y02P20/582 ,  C08F4/64193 ,  C08F2500/09 ,  C08F2500/12

    摘要： The instant invention provides a polyolefin composition suitable for packaging applications, films, multilayer structures and packaging devices made therefrom. The polyolefin composition according to the present invention comprises: an ethylene/α-olefin interpolymer composition comprising (a) from 50 to 75 percent by weight of a first ethylene/α-olefin copolymer fraction having a density in the range of 0.894 to 0.908 g/cm3, a melt index (I2) in the range of from 0.2 to 1 g/10 minutes, and (b) from 25 to 50 percent by weight of a second ethylene/α-olefin copolymer fraction, and wherein said ethylene/α-olefin interpolymer composition has a density in the range of 0.910 to 0.924 g/cm3, a melt index (I2) in the range of from 0.5 to 2 g/10 minutes, a zero shear viscosity ratio (ZSVR) in the range of from 1.15 to 2.5, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (Mw/Mn) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second and 190° C. in the range of from 6 to 43.

    摘要翻译： 本发明提供一种适用于包装应用，薄膜，多层结构和由其制成的包装装置的聚烯烃组合物。 根据本发明的聚烯烃组合物包含：乙烯/α-烯烃互聚物组合物，其包含（a）50至75重量％的密度在0.894至0.908g范围内的第一乙烯/α-烯烃共聚物部分 / cm 3，熔体指数（I 2）在0.2〜1g / 10分钟的范围内，和（b）25〜50重量％的第二乙烯/α-烯烃共聚物部分，其中所述乙烯/ α-烯烃互聚物组合物的密度范围为0.910〜0.924g / cm3，熔体指数（I2）为0.5〜2g / 10分钟，零剪切粘度比（ZSVR）为 1.15至2.5，分子量分布表示为重均分子量与数均分子量（Mw / Mn）的比值在2.0至4.0的范围内，tanδ在0.1弧度/秒和190℃ 在6到43的范围内。

    Methods of preparing a peelable seal layer
    7.
    发明授权
    Methods of preparing a peelable seal layer 有权

    公开(公告)号：US10717833B2

    公开(公告)日：2020-07-21

    申请号：US15564276

    申请日：2016-05-09

    申请人： Dow Global Technologies LLC

    发明人： Mustafa Bilgen ,  Claudia Hernandez ,  Marcello Tognola

    IPC分类号： C08J5/18 ,  B32B27/32 ,  C08L23/06 ,  B32B7/06 ,  B32B27/08 ,  B32B27/30 ,  B32B27/36 ,  B32B7/12 ,  B32B27/16 ,  B29C48/23 ,  B32B37/15 ,  B29C48/21 ,  B29C48/08 ,  B29K23/00

    摘要： The present invention provides methods of preparing peelable seal layers, methods of preparing multilayer films, peelable seal layers made therefrom, and multilayer films made therefrom. In one aspect, a method of preparing a peelable seal layer comprises (a) providing a first blend comprising (i) from 5 to 98 percent by weight of a reactor grade propylene based plastomer or elastomer having a molecular weight distribution of less than 3.5 and a density of less than 0.89 g/cc and (ii) from 2 to 95 percent by weight of a second polymer selected from the group consisting of polyethylene, polybutylene, and styrenic polymer and mixtures thereof; (b) providing at least one linear low density polyethylene; (c) blending the first blend with the at least one linear low density polyethylene to obtain a second blend; and (d) extruding the second blend to form a peelable seal layer, wherein the peelable seal layer has a heat seal initiation temperature less than 120° C. when sealed at a bar pressure of 40 psi with a dwell time of 0.5 seconds.

    Fitment with Propylene-Based Blend Component and Flexible Container with Same
    8.
    发明申请
    Fitment with Propylene-Based Blend Component and Flexible Container with Same 审中-公开

    公开(公告)号：US20190256268A1

    公开(公告)日：2019-08-22

    申请号：US16332893

    申请日：2017-09-26

    申请人： Dow Global Technologies LLC

    发明人： Sydney E. Brown ,  Mustafa Bilgen

    IPC分类号： B65D75/58 ,  B32B27/32 ,  C08L23/14 ,  C08L23/12 ,  C08L23/16 ,  B65D81/20

    摘要： The present disclosure provides a fitment. In an embodiment, the fitment includes a top portion, a base, and a channel extending through the top portion and the base for passage of a flowable material. The fitment is composed of a polymeric composition. The polymeric composition comprises: (i) from 60 weight % to 90 weight % of a propylene-based polymer having a density of 0.900 g/cc and a melt flow rate greater than 10.0 g/10 min; and (ii) from 40 weight % to 10 weight % of a propylene-based plastomer or elastomer (“PBPE”) having a density less than 0.900 g/cc, and a melt flow rate (MFR) from 5 g/10 min to 30 g/10 min. The present disclosure also provides a process for sealing multilayer films to the base of the fitment and the resultant flexible container formed from the process.