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Detection of nitrogen blow events during the polymerization process

A nitrogen blowing and event technology, applied in the system field of nitrogen blowing events, can solve problems such as high time and labor costs

Active Publication Date: 2017-11-17
INVISTA TEXTILES (U K) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, high time and labor costs are invested just to achieve the purpose of production process monitoring and timely operation of the autoclave extrusion valve

Method used

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  • Detection of nitrogen blow events during the polymerization process
  • Detection of nitrogen blow events during the polymerization process
  • Detection of nitrogen blow events during the polymerization process

Examples

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Embodiment Construction

[0020] Although the following detailed description contains many details for illustration, those of ordinary skill in the art will appreciate that many changes and substitutions to the following details are within the scope of the embodiments disclosed herein.

[0021] Accordingly, the following examples are set forth without loss of generality and without limitation of any claimed invention. Before the present invention is described in greater detail, it is to be understood that this disclosure is not limited to particular embodiments described herein, as such may vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and not of limitation, since the scope of the present invention will be limited only by the appended claims. Unless otherwise defined, all technical and scientific terms used herein have the meaning commonly understood by one of ordinary skill in the art to which this disclosure belongs. ...

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Abstract

Processes and systems for detection of a nitrogen blow event during a polymer production process, such as a nylon 6,6 polymer production process, are disclosed and described. Processes and systems for arresting a nitrogen blow event during a polymer production process, such as nylon 6,6 polymer production processes, are also disclosed and described.

Description

technical field [0001] The present invention relates to systems and methods for detecting and preventing nitrogen blow events during a polymer casting process using acoustic information. Background technique [0002] In the production process of nylon polymer, the molten nylon polymer is removed from the autoclave based on the autoclave pressure curve, and then extruded through a die plate. After extrusion, the molten nylon polymer is quenched in cold water and cut into flakes or pellets. The pressure profile for extrusion was maintained by using compressed nitrogen in the autoclave. Typical autoclave pressures are 3 to 9 barA. [0003] Nitrogen blowing events can occur if nitrogen gas is allowed to leak through the formwork late in the casting process (i.e., during production), or if large gaps are accidentally created in the flow of molten nylon polymer. It may be undesirable and unsafe if the event is allowed to go unchecked for a long time. Therefore, in order to qui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/92B29C48/92
CPCC08F2/01
Inventor 利恩·曼斯特康纳利斯·M·冯克
Owner INVISTA TEXTILES (U K) LTD