Linear metallocene PE modified compound additive

A metallocene polyethylene and composite additive technology, applied in the field of linear metallocene polyethylene modified composite additives, can solve the problems of unstable operation of the device, blocked delivery pipeline, low melting point, etc., and achieve the goal of overcoming pipeline blockage and continuous and stable production Effect

Inactive Publication Date: 2010-05-05
李庆民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In 2007, Daqing Petrochemical Company produced metallocene linear low density polyethylene in China for the first time and succeeded in a test run, which filled the blank of domestic metallocene ethylene production. Transported to the metering scale and added to the powder, due to the low melting point of some necessary additives, the pipeline is blocked, resulting in multiple shutdowns, resulting in unstable operation of the device and a large amount of powder packaging

Method used

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  • Linear metallocene PE modified compound additive
  • Linear metallocene PE modified compound additive
  • Linear metallocene PE modified compound additive

Examples

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Effect test

Embodiment 1

[0025] The linear metallocene polyethylene modified composite additive of the present invention is composed of the following components in parts by weight: 10 parts of hindered phenol primary antioxidant CA, 45 parts of phosphate auxiliary antioxidant 626, and plastic processing aid PPA FX -5920 20 copies.

Embodiment 2

[0027] The linear metallocene polyethylene modified composite additive of the present invention is composed of the following components in parts by weight: 20 parts of hindered phenol primary antioxidant 425, 60 parts of phosphate auxiliary antioxidant 618, plastic processing aid FX- 9366 PPA 30 copies.

Embodiment 3

[0029] The linear metallocene polyethylene modified composite additive of the present invention is composed of the following components in parts by weight: 15 parts of hindered phenol primary antioxidant 1076, 45 parts of phosphate auxiliary antioxidant 168, plastic processing aid PPA FX -5911 25 copies.

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Abstract

The invention relates to a linear metallocene PE modified compound additive, which consists of the following components in parts by weight: 10-20 parts of hindered phenol antioxidant, 45-60 parts of phosphate auxiliary antioxidant and 20-30 parts of plastic processing aid (PPA). The linear metallocene PE modified compound additive in the invention is applied in linear low-density PE devices and has the advantages of satisfying production requirement of metallocene PE, overcoming the problem of pipeline blocking in current devices and realizing continuous and stable production of devices.

Description

technical field [0001] The invention relates to a linear metallocene polyethylene modified composite additive. Background technique [0002] At present, the domestic linear low density polyethylene plant is designed and manufactured by the UNIPOL low-pressure gas phase fluidized bed process patented by United Carbon Corporation, using ethylene as raw material, butene-1 or hexene-1 as comonomer, and hydrogen as molecular weight regulator. Use titanium or chromium catalysts to produce granular or powdered linear low-density polyethylene resins by ion polymerization mechanism. The whole set of equipment is composed of raw material purification, catalyst preparation, polymerization, resin degassing and discharge recovery, granulation, air delivery, homogenization, storage and packaging. Metallocene linear low density polyethylene can be produced using metallocene catalysts. In 2007, Daqing Petrochemical Company produced metallocene linear low density polyethylene in China for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/526C08K5/524C08K5/134C08K5/13C08L27/12C08L23/08
Inventor 李庆民姜兴伟
Owner 李庆民
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