公开(公告)号：US11352456B2

公开(公告)日：2022-06-07

申请号：US17251006

申请日：2019-06-28

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Niclasina Siberta Johanna Alberdina Gerrits ,  Attilio Scala

IPC: B32B27/02 ,  C08F210/16 ,  B29C48/08 ,  B29C48/00 ,  B29C55/14 ,  B32B27/32 ,  C08J5/18

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.

公开(公告)号：US20210146663A1

公开(公告)日：2021-05-20

申请号：US16622956

申请日：2018-06-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Lucio Baccaro ,  Attilio Scala

IPC: B32B27/08 ,  B32B27/32

Abstract: The present invention relates to a multi-layer film comprising at least three layers, with two outer layers, and one core layer, wherein: the core layer comprises an ethylene copolymer comprising 1-octene and having a density between >0.910 g/cm3 and 0.925 g/cm3, wherein further the first outer layer comprises an ethylene homopolymer having a density of between >0.915 g/cm3 and 0.930 g/cm3, wherein further the second outer layer comprises and optional first ethylene copolymer and a second ethylene copolymer having a density of between 0.850 g/cm3 and

公开(公告)号：US10696014B2

公开(公告)日：2020-06-30

申请号：US16461439

申请日：2017-12-21

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Lucio Baccaro ,  Attilio Scala

IPC: B32B27/08 ,  B32B7/022 ,  B29C48/08 ,  B29C48/21 ,  B29C48/00 ,  A01F25/13 ,  B32B27/32 ,  B29K23/00 ,  B29K105/00

Abstract: The present invention concerns a multi-layer film comprising at least five layers, with two outer layers, two intermediate layers and one core layer, wherein the core layer comprises an ethylene copolymer having a density between ≥0.910 g/cm3 and 0.925 g/cm3, the intermediate layers comprise an ethylene copolymer comprising 1-octene and having a density between >0.915 g/cm3 and 0.925 g/cm3, wherein further the first outer layer comprises between 65 wt. % and 93 wt. % of a first ethylene copolymer comprising 1-octene and having a density between >0.915 g/cm3 and 0.925 g/cm3 and between 7 wt. % and 35 wt. % of a second ethylene copolymer having a density between >0.925 g/cm3 and 0.945 g/cm3 based on the total weight of polymers of the layer, wherein further the second outer layer comprises between 35 wt. % and 65 wt. % of a first ethylene copolymer comprising 1-octene and having a density between >0.915 g/cm3 and 0.925 g/cm3 and between 35 wt. % and 65 wt. % of a second ethylene copolymer having a density between 0.850 g/cm3 and