Sabic Global Technologies B.v.

Saudi Basic Industries Corporation

Sabic Sk Nexlene Company Pte. Ltd.

Yparex B.v.

Priya Garg

Nicolaas Hendrika Friederichs

Maria Soliman

Tom Schoffelen

Aurora Alexandra Batinas-Geurts

Jan Nicolaas Eddy Duchateau

Dae Ho Shin

Franciscus Petrus Hermanus Schreurs

Choon Sik Shim

Attilio Scala

Hyeong Taek Ham

Jacobus Christinus Josephus Franciscus Tacx

Min Ho Jeon

Erik Zuidema

Sang Bae Cheong

Shengming Cui

Ling Fan

Eric Johannes Cornelia Janssen

Ana Luisa Vaz

Ji Hyun Bae

Hongtao Shi

Shan Qin

Wouter Van Den Berg

Franciscus Antoinet Maria Huijnen

Jorgen Jacobus Hendricus Gerardus Kemps

Li Yuan

Gerrit-Jan Bekink

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 Tof at least 10° C. below the Tof the first ethylene-based polymer, Tbeing 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.

Bi-directionally oriented multilayer film

The present invention related to a film comprising multiple co-extruded film layers, the film having a length and a width, and a thickness defined as the dimension of the film perpendicular to the plane defined by the length and the width, wherein the film is a bi-axially oriented film comprising at least a core layer A, having a first and a second surface, and one or two sealing layer(s) B, wherein the core layer A comprises a polypropylene, and wherein the sealing layer B comprises >50.0 wt % of 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/mas determined in accordance with ASTM D1505 (2010), with regard to the total weight of the sealing layer B, wherein the sealing layer B directly adheres to one of the first or second surface of the core layer A. 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.

Biaxially oriented polypropylene film for heat sealing

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.

Polyethylene film for heat sealing

The invention relates to a composition comprising: a) 30-90 wt % of a polyamide and b) 10-40 wt % of a polyethylene elastomer (POE) composition, wherein the amounts of a) and b) are with respect to the total composition, wherein the total of a) and b) is at least 60 wt % with respect to the total composition, wherein the POE composition consists of: b1) 20-95 wt % of a non-functionalized polyethylene elastomer and b2) 5-80 wt % of a functionalized polyethylene elastomer, wherein the amounts of b1) and b2) are with respect to the POE composition.

Impact-resistant polymer composition

Provided are an ethylene polymer mixture, a method of preparing the same, and a molded article using the same. More specifically, an ethylene polymer mixture in which two ethylene polymers having different densities are mixed, a method of preparing the same, and a molded article having a low haze and a low heat sealing temperature using the ethylene polymer mixture, are provided.

Ethylene polymer mixture, method of preparing the same, and molded article using the same

The invention is directed to polyethylene having a density in the range&#x2265;940 and &#x2264;960 kg/m, Melt Flow Rate 190/21.6&#x2265;1.5 and &#x2264;4.0 g/10 min at 190 degrees Celsius and MWD&#x2265;3 and &#x2264;12. The polyethylene is applied in the production of pipes.

High density polyethylene for the production of pipes

The present invention relates to a use or process for the reduction of gels in polyethylene materials comprising at least one ethylene copolymer with a density &#x2265;850 kg/m3 and &#x3c;905 kg/m3 wherein a polyethylene material is subjected to melt processing in the presence of a free radical initiator composition characterized in that the free radical initiator composition may for example be added in quantities &#x2264;0.050 wt. % compared to the total weight of the polyethylene material, wherein further the melt processing is performed in a melt processing unit, wherein the free radical initiator composition is dosed to the melt processing unit in a stage where the polyethylene material is in a molten condition and melt processing is conducted at a temperature of &#x2265;160&#xb0; C. and &#x2264;240&#xb0; C.

Use of a free radical initiator composition for the production of polyethylene materials having a reduced gel content

The invention is directed to bimodal polyethylene having a flow ratio FRR ranging between &#x2265;30 and &#x2264;40, a density ranging between &#x2265;949.0 and &#x2264;952.0 kg/m3, an MFRranging between &#x2265;0.1 and &#x2264;0.2 g/10 min and comprising from 50 to 54% by weight of an ethylene homopolymer A and from 46-50% by weight of an ethylene-butene copolymer B, where all percentages are based on the total weight of the composition and wherein ethylene homopolymer A has a viscosity number &#x2265;70 and &#x2264;100 cm3/g and a density between &#x2265;968 and &#x2264;972 kg/m3. The polyethylene is suitable to be applied in the production of pipes.

Bimodal high density polyethylene

The invention is directed to a multimodal polyethylene having a flow ratio FRR ranging between &#x2265;25 and &#x2264;35, a density ranging between &#x2265;948.0 kg/mand &#x2264;953.0 kg/m, an MFRranging between &#x2265;0.1 and &#x2264;0.4 g/10 min and comprising from 50-54% by weight of an ethylene homopolymer A and from 46-50% by weight of an ethylene-hexene copolymer B, where ah percentages are based on the total weight of the composition and wherein ethylene homopolymer A has a viscosity number &#x2265;110 cm/g and &#x2264;130 cm/g and a density between &#x2265;960.0 kg/mand &#x2264;969.0 kg/m. The polyethylene is suitable to be applied in the production of pipes.

Multimodal high density polyethylene

The invention relates to a process for the production of bimodal polyethylene in a two-step polymerization process in the presence of a catalyst system comprising: (I) the solid reaction product obtained by reacting of: a) a hydrocarbon solution containing 1) an organic oxygen containing magnesium compound or a halogen containing magnesium compound and 2) an organic oxygen containing titanium compound and b) an aluminum halogenide having the formula AIRXin which R is a hydrocarbon radical containing 1-10 carbon atoms, X is halogen and 0&#x3c;n&#x3c;3 (II) an aluminum compound having the formula AIRin which R is a hydrocarbon radical containing 1-10 carbon atom and (III) an electron donor selected from the group of 1,2-dialkoxyalkanes and 1,2-dialkoxyalkenes wherein in the first step a low molecular weight polyethylene is produced which has a MFIis between 1 and 200 dg/min, and in the second step a high molecular weight ethylene copolymer is produced in which the MFIof the total product is between 0.1 and 5 dg/min, and the weight fraction of the material produced in the first step is between 40 wt % and 60 wt % of the total product.

Process for the production of bimodal polyethylene in the presence of this catalyst system

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Vaals, Netherlands

Priya Garg