公开(公告)号：US20230151164A1

公开(公告)日：2023-05-18

申请号：US17917698

申请日：2021-04-06

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Ling FAN ,  Lanya CHENG ,  Qiang WANG ,  Hongtao SHI ,  Maria SOLIMAN ,  Jun ZHOU

IPC: C08J5/18 ,  B32B27/32 ,  C08L23/08

CPC classification number: C08J5/18 ,  B32B27/32 ,  C08L23/0815 ,  B32B2250/40 ,  B32B2270/00 ,  B32B2307/732 ,  B32B2307/31 ,  B32B2439/70 ,  C08J2323/08 ,  C08J2423/08 ,  C08L2203/162 ,  C08L2205/025

Abstract: A film includes a sealing layer containing a polyethylene A having moieties derived from ethylene and moieties derived from an α-olefin comprising 4 to 10 carbon atoms, the polyethylene A having a density of ≥870 and ≤920 kg/m3, wherein the polyethylene A has: a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤30.0° C. of ≥5.0 wt % and ≤15.0 wt %, with regard to the total weight of the polyethylene; and two distinct peaks in the a-TREF curve in the elution temperature range of between 50.0 and 90.0° C., wherein the elution temperature gap between the two peaks is ≤17.5° C. The film can be sealed at a desirably low temperature, whilst still having a desirable seal strength. Furthermore, the film demonstrates a desirably high heat stability.

公开(公告)号：US20220204711A1

公开(公告)日：2022-06-30

申请号：US17606946

申请日：2020-04-16

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Daniela MENOZZI ,  Estelle Julie Mathilde POULET ,  Maria SOLIMAN ,  Enrico DALCANALE ,  Roberta PINALLI ,  Ilaria ALFIERI ,  Andrea LORENZI ,  Jerome VACHON

IPC: C08J7/048 ,  C08J7/04 ,  C08J7/12 ,  B05D3/14

Abstract: The invention relates to a process for the preparation of an oxygen barrier film having an oxygen barrier layer and a treated substrate, comprising the steps of: a) subjecting a polyolefin substrate to a surface treatment to obtain the treated substrate wherein the surface under the parts of the curves corresponding to the C—O, C—N and C═O groups is at least 10% based on the total surface under the curve as obtained by X-ray photoelectron spectroscopy (XPS), b) applying an aqueous or hydroalcoholic coating composition comprising 0.1 to 25 wt % of polyvinyl alcohol, 0.1 to 30 wt % of a metal alkoxide and optional silicate minerals on the treated substrate obtained by step a) and c) drying the coating composition to obtain the oxygen barrier layer resulting in the oxygen barrier film, wherein the amount of the optional silicate minerals in the coating composition is less than 10 parts by weight per 100 parts by weight of the polyvinyl alcohol in the coating composition.

公开(公告)号：US20220064389A1

公开(公告)日：2022-03-03

申请号：US17423242

申请日：2020-01-13

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Priya GARG ,  Maria SOLIMAN

IPC: C08J5/18 ,  C08F2/06 ,  C08F110/02 ,  B29C65/02

Abstract: The present invention relates to a film comprising at least one sealing layer wherein at least one layer A of the sealing layer(s) comprises a polyethylene comprising moieties derived from ethylene and moieties derived from an α-olefin comprising 4 to 10 carbon atoms, the polyethylene having a density of ≥870 and ≤920 kg/m3 as determined in accordance with ASTM D792 (2013), wherein the polyethylene has: x a fraction of material that is eluted in analytical temperature rising elution fractionation (a-TREF) at a temperature ≤30.0° C. of ≥5.0 wt %, preferably ≥10.0 wt %, with regard to the total weight of the polyethylene; x a shear storage modulus G determined at a shear loss modulus G″=5000 Pa of >700 Pa, G′ and G″ being determined in accordance with ISO 6721-10 (2015) at 190° C.; x a melt mass-flow rate, determined at 190° C. under a load of 2.16 kg in accordance with ASTM D1238 (2013) of ≥2.60 and ≤4.90 g/10 min; and x a chemical composition distribution broadness (CCDB) of ≥15.0, preferably ≥20.0. Such film allows for sealing of the film at a reduced temperature, whilst still providing a desirable seal strength, and a desirable hot-tack strength.

公开(公告)号：US20210388189A1

公开(公告)日：2021-12-16

申请号：US17291037

申请日：2019-11-04

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Anantharaman DHANABALAN ,  Shaneesh VADAKE KULANGARA ,  Maria SOLIMAN ,  Radha KAMALAKARAN ,  Anshita SUDARSHAN ,  Sadasivam GOPALAKRISHNAN ,  Anirban GANGULY

IPC: C08L23/06 ,  C08G77/448 ,  C08L83/10

Abstract: A polyethylene composition having increased environmental stress crack resistance comprises a polymer blend of a multimodal high density polyethylene (HDPE) and an additive of at least one of a polycarbonate-siloxane copolymer, a polyethylene glycol (PEG) having an average molecular weight (Mw) of at least 2000, and a random block copolymer comprising two different saturated alkane blocks between two aromatic hydrocarbon blocks. The additive is present in the polymer blend in an amount of from 1 wt. % or less by weight of the polymer blend.