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Polymer composition by continuous filler slurry extrusion

A polymer and composition technology, applied in the field of continuous production of polymer compositions, can solve the problems of high cost and discontinuity

Active Publication Date: 2016-09-07
OMYA INT AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, prior art methods often also require a separate and costly mixing step upstream of the mixing device or extruder, and thus may only be performed in a discontinuous manner

Method used

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  • Polymer composition by continuous filler slurry extrusion
  • Polymer composition by continuous filler slurry extrusion
  • Polymer composition by continuous filler slurry extrusion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0260] Example 1 - Production of Polymer Compositions (Comparative Example) :

[0261] LLDPE was supplied to the feed area of ​​an extruder (Coperion ZSK-18, Coperion GmbH, Germany) with the following configuration:

[0262]

[0263] cylinder:

[0264] Numbering

Cartridge type

1

supply

2

solid

3

solid

4

solid

5

solid

6

Composite barrel 18 / 18

7

solid

8

exhaust pipe

9

exhaust pipe (closed)

10

end barrel

[0265] Screw configuration:

[0266] quantity

Types of

1

Conveying element 12 / 12

5

Conveying elements 24 / 24

1

Kneading element KB45 / 5 / 16N-3FE

2

Kneading element KB45 / 5 / 16 3FE

1

Kneading element KB45 / 5 / 16 3FE-N

1

Conveying element 24 / 12

2

Conveying elements 24 / 24

1

Kneading element KB45 / 5 / 16

1

Kneading element KB45 / 5 / 24

2

Conveying elements 24 / 24...

Embodiment 2

[0275] Example 2 - Production of Polymer Compositions (Comparative Example) :

[0276] LLDPE was supplied to the feed zone of an extruder (Coperion ZSK-18, Coperion GmbH, Germany) having the configuration described in Example 1 . By using the side feeder of the extruder, the coated calcium carbonate powder ( 95T-OM) into the extruder and mixed with the polymer melt prior to discharge and pelletization.

[0277] The following samples were obtained as pellets:

[0278] Sample serial number

4

5

6

Filler content [wt%]

10

30

60

FPV[bar·g –1 ]

1.0

0.8

0.9

Ash content[%]

9.6

29.4

58.5

Moisture content [ppm]

n.d.

n.d.

855

extrusion simulation [bar]

n.d.

n.d.

30

[0279] Table 2. Filler Content, Filtration Pressure Value (FPV), Ash Content and Moisture Content of Comparative Samples 4-6.

[0280] For the production of sample 6, the screw speed was reduced to 550min –1 .

Embodiment 3

[0281] Example 3 - Production of polymer compositions (invention) :

[0282] LLDPE was supplied to the feed area of ​​an extruder (Coperion ZSK-18, Coperion GmbH, Germany) with the following configuration:

[0283]

[0284] cylinder:

[0285] Numbering

Cartridge type

1

supply

2

solid

3

solid

4

solid with outgassing

5

solid

6

Composite barrel 18 / 18

7

solid

8

exhaust pipe

9

exhaust pipe (closed)

10

end barrel

[0286] Screw configuration:

[0287] quantity

Types of

1

Conveying element 12 / 12

4

Conveying elements 24 / 24

1

Kneading element KB45 / 5 / 16N-3FE

2

Kneading element KB45 / 5 / 16 3FE

1

Kneading element KB45 / 5 / 16 3FE-N

1

Kneading element 90 / 5 / 16

1

Conveying elements 24 / 24

2

Conveying element 16 / 16

1

spacer / 1

1

ZME 6 / 11

1

spacer / 1

1...

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PUM

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Abstract

An inventive process for the production of a polymer composition is provided, said process comprising the incorporation of a filler into a polymer material, wherein said polymer material during incorporation of the filler is in at least partially molten state and wherein said filler is incorporated as a slurry.

Description

technical field [0001] The invention relates to a method for the continuous production of a polymer composition and the use of said polymer composition. Background technique [0002] Fillers and especially mineral fillers are often used in the production of polymer products from polymers such as polyethylene (PE), polypropylene (PP), polyurethane (PU) or polyvinyl chloride (PVC), e.g. to reduce the consumption, improve material properties or reduce thermal shrinkage. [0003] The increase in the cost of producing polymer products has led to the development of more economical methods of providing polymer compositions. For example, a polymer composition having a high filler content, also known as a polymer masterbatch (sometimes called a polymer concentrate), can be extruded with another polymer material to increase the filler content of the resulting polymer product. content. [0004] Fillers are frequently chosen from natural or synthetic materials, such as calcium carbon...

Claims

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Application Information

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IPC IPC(8): B29C47/00B29C47/10C08J3/205B29C48/405B29C48/41
CPCB29K2509/00B29K2023/00C08J2323/08B29C48/297B29C48/04B29C48/022B29C48/29B29C48/288B29C48/08B29C48/0018C08J3/2056B29C48/41B29C48/405B29B7/94B29B7/60B29B7/42B29B7/48B29B7/007B29B7/90B29B7/845B29C48/40B29B9/065B29B9/12C08J5/18C08K3/26C08K2201/003C08K2003/265C08J2323/06B29K2023/0625B29C48/00
Inventor M·廷克M·布儒纳R·伯克哈特T·福尔纳G·斯基罗西R·普芬德J·巴斯B·蒂尔曼H·道尔瑞
Owner OMYA INT AG
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