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Apparatus for producing water and solvent-free polymers

A kneader and extruder technology, applied in the field of polymers, can solve problems such as the content of volatile compounds that are not recorded

Active Publication Date: 2015-03-04
ARLANXEO DEUT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this document does not record the content of volatile compounds in the final product

Method used

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  • Apparatus for producing water and solvent-free polymers
  • Apparatus for producing water and solvent-free polymers
  • Apparatus for producing water and solvent-free polymers

Examples

Experimental program
Comparison scheme
Effect test

example

[0157] Analytical method

[0158] Water Content of Fluid F: The sample was placed in a centrifuge and spun at 4000 rpm for 5 minutes at room temperature. Water was then collected at the bottom of the vial and weighed.

[0159] Total Volatile Concentration: Rubber samples were cut into 2x 2mm pieces. About 30 g of rubber flakes were placed in an alumina crucible. Determine the weight of the crucible and rubber. The crucible containing the rubber sample was then placed in a vacuum furnace at a temperature of 105°C and a vacuum of 130 hPa for 60 minutes. After drying, the crucible was placed in a desiccator and allowed to cool for 30 minutes. The crucible is then weighed again. Determine weight loss.

[0160] Residual solvent concentration in product P: The residual solvent concentration of this product was determined by headspace gas chromatography. A weighed portion of the sample (0.5+-0.005 g) was placed in a headspace bottle and a measured amount of solvent (1,2 dichlo...

example 1

[0178] A sample of Fluid (A) was placed in the stirred vessel and stirred at 58°C for 10 minutes. The stirrer was then stopped and the sample was left to settle. After 30 minutes the organic phase was separated from the aqueous phase and the residual water content was measured in a centrifuge. The residual amount of water was 35 vol%.

example 2

[0180] 160ml of fluid (A) was placed in the container and 240ml of water was added. The mixture was stirred at 58°C for 10 minutes. The stirrer was then stopped and the mixture was left to settle. After 30 minutes the organic phase was separated from the aqueous phase and the residual water content was measured in a centrifuge. The residual amount of water in the organic phase was 10.0 vol%.

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Abstract

The present invention relates to water and solvent-free polymers, in particular water and solvent-free synthetic rubber products like non-halogenated and halogenated butyl rubber products as well as a process for the production thereof. The invention further relates to a device suitable to accomplish said process.

Description

[0001] The present invention is a divisional application of the parent application with the application number 200980139308.1, the filing date is September 17, 2009, and the title of the invention is "Method for producing polymer without water and solvent". technical field [0002] The present invention relates to water- and solvent-free polymers, in particular water- and solvent-free synthetic rubber products, like non-halogenated and halogenated butyl rubber products, and processes for their production. The invention further relates to a device suitable for carrying out said method. Background technique [0003] Synthetic rubbers have important industrial uses and are typically produced by (co)polymerization of monomers, typically via slurry, solution or dissolution processes. Examples of synthetic rubbers include butyl and halobutyl rubbers, polyisobutylene, ethylene propylene diene M-type rubbers (EPDM), nitrile butadiene rubbers (NBR), and styrene-butadiene rubbers (SBR...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B7/74B29C47/36B29C47/38B29C47/60B29C47/62C01B5/00C08C2/00C08F6/00B29C48/395B29C48/64B29C48/76
CPCB29C47/38B29C47/6056B29C47/62C01B5/00B29C47/364C08F6/003C08C2/00B29B7/7485B29C48/37B29C48/57B29C48/64B29C48/395B29B7/845B29B7/86B29B7/7495B29B7/60C08L23/283C08F10/10C08L9/00C08L23/22
Inventor 约尔格·基希霍夫维尔纳·贝克尔罗尔夫·费尔勒保尔·瓦格纳约翰·洛夫格罗夫汉斯-因戈尔夫·保罗
Owner ARLANXEO DEUT GMBH