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multimodal polymer

A polymer, polyethylene polymer technology, used in blow molding applications, manufacturing multi-modal high-density polyethylene, multi-modal high-density polyethylene, can solve the problems of sacrifice, increased energy consumption, etc., to achieve high tensile strength The effect of elongation modulus and high ESCR

Active Publication Date: 2018-09-14
ABU DHABI POLYMERS CO LTD BOROUGE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, LCB increases processing temperature and thus increases energy consumption, i.e. production cost
Therefore, LCB sacrifices ESCR performance which is important for many molding applications

Method used

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Embodiment Construction

[0045] It has now been found that the PE composition according to the invention provides an improved material for pipe or molding applications, especially for molding applications, preferably blow molding applications, especially for making containers such as bottles. The PE polymers of the invention combine very good mechanical properties in terms of stress crack resistance, stiffness, impact strength with excellent processability. Therefore, the die swell and melt strength of PE polymers are sufficiently high for demanding molding applications.

[0046] The PE polymers of the present invention are multimodal high density ethylene polymers and may be ethylene homopolymers or ethylene copolymers. Ethylene copolymer means a polymer the majority by weight of which is derived from ethylene monomer units. The comonomer distribution in the PE polymer is preferably up to 10% by mole, more preferably up to 5% by mole. Ideally, however, comonomers are present in the PE polymers of t...

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Abstract

A polyethylene composition comprising a multimodal polyethylene polymer having an MFR2 of 0.01 to 0.5 g / 10min, a density of at least 954 kg / m3, a Mw / Mn of 12 to 22, Mz / Mw of 6 to 8, and wherein Mz / Mw>10.75-[0.25*(Mw / Mn)].

Description

technical field [0001] The present invention relates to a multimodal polyethylene polymer suitable for use in molding applications or in the manufacture of pipes, in particular blow molding applications, and a method for the manufacture of the multimodal ethylene polymer. In particular, the present invention relates to a multimodal high density polyethylene having a broad molecular weight distribution, which has an ideal balance of stiffness, ESCR, impact force and processability. The invention also encompasses a process for producing multimodal high density polyethylene in a multistage polymerization cascade. Background technique [0002] The use of polyethylene in the manufacture of shaped articles or pipes is well known. Innumerable forms of polyethylene are disclosed for use in the manufacture of these important products. To be useful in the manufacture of such manufactured goods, the polymer in question needs to have specific properties. [0003] For example, in orde...

Claims

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Application Information

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IPC IPC(8): C08L23/06
CPCC08L23/06C08L23/0815C08L2203/10C08L2203/18C08L2205/025C08L2314/02
Inventor 安德烈·布里亚克罗杰·戈里斯阿施施·库马尔
Owner ABU DHABI POLYMERS CO LTD BOROUGE
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