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公开(公告)号：US20210253759A1
公开(公告)日：2021-08-19
申请号：US17251006
申请日：2019-06-28
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Abstract: The present invention relates to a polymer comprising moieties derived from ethylene and moieties derived from 1-hexene, wherein the polymer has: (a) a density of ≥910 and ≤930 kg/m3 as determined in accordance with ASTM D1505 (2010); (b) a melt mass-flow rate of ≥0.5 and ≤5.0 g/10 min, as determined in accordance with ASTM D1238 (2013) at a temperature of 190° C. under a load of 2.16 kg; (c) a fraction that is not eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≥30.0° C. of ≥8.0 wt %, with regard to the total weight of the polymer; and (d) a fraction eluted in a-TREF at a temperature ≥94.0° C. of ≥20.0 wt %, with regard to the total weight of the polymer. Such polymer allows for the production of bi-directionally oriented films having a particularly desirable ability to be stretched at a high stretching ratio, in both the machine direction and in the transverse direction, and particularly to be stretched to a high stretching ratio in the machine direction and the transverse direction combined. Further this polymer allows for production of bi-directionally oriented films within a particularly and desirably broad temperature range in which the stretching can be performed without imparting any deficiencies of hampering the film production processes in continuous film production.
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公开(公告)号：US20220080703A1
公开(公告)日：2022-03-17
申请号：US17423292
申请日：2020-01-13
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Niclasina Siberta Johanna Alberdina GERRITS , Attilio SCALA , Priya GARG , Jacobus Christinus Josephus Franciscus TACX
Abstract: The present invention relates to a multilayer film comprising: • an inner layer system comprising a first surface and a second surface; • a first skin layer bound to the inner layer system at the first surface of the inner layer system; and • a second skin layer bound to the inner layer system at the second surface of the inner layer system; wherein • the inner layer system comprises a first ethylene-based polymer; and • at least one of the first or the second skin layer(s) is a sealing layer and comprises a second ethylene-based polymer having a peak melting temperature Tpm of at least 10° C. below the Tpm of the first ethylene-based polymer, Tpm being determined as peak melting temperature in accordance with ASTM D3418 (2008); wherein the multilayer film is a bi-directionally oriented film wherein the orientation is introduced in the solid state. Such film allows for the production of a sealed package having a sufficiently high sealing strength at reduced sealing temperatures, also referred to as the seal initiation temperature.
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公开(公告)号：US20240075716A1
公开(公告)日：2024-03-07
申请号：US17767537
申请日：2020-10-09
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor： Franciscus Petrus Hermanus SCHREURS , Niclasina Siberta Johanna Alberdina GERRITS , Bart VAN DEN ESSCHERT , Attilio SCALA , Lucio BACCARO
CPC classification number: B32B27/08 , B32B27/32 , B32B2250/02 , B32B2250/246 , B32B2307/31 , B32B2307/518 , B32B2307/72 , B32B2307/732 , B32B2307/75 , B32B2323/04 , B32B2439/46
Abstract: The present invention relates to a bag comprising a film, wherein the film comprises at least a first layer, wherein the first layer is a bi-directionally oriented polyethylene film layer, wherein the bag comprises ≥90.0 wt % of polyethylene with regard to the total weight of the film. Such bag may be used for packaging of bulk goods or for packaging of frozen matter. Such bag demonstrates a desirably high retention of mechanical properties and shape under load, at reduced weight as compared to bags of the art, and presents a mono-material solution allowing suitable further processing of the bag via recycling technologies.
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