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Method for producing soft sheet

A manufacturing method and sheet technology, applied to flat products, applications, household appliances, etc., can solve problems such as multiple calendering times, achieve the effects of reducing calendering times, increasing yield, and promoting fibrosis

Active Publication Date: 2013-05-08
NIPPON VALQUA IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the cut product 122 is folded and then rolled. In order to remove the internal voids and at the same time orient the molecular chains to give strength, that is, to promote the fiberization of the fluorine-containing resin, a large number of rolling times is required.

Method used

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  • Method for producing soft sheet
  • Method for producing soft sheet
  • Method for producing soft sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0058] Hereinafter, examples and comparative examples of the present invention will be described in comparison. In the description below, the figure 1 with figure 2 The manufacturing method of the soft sheet that the present invention relates to shown is embodiment, and with Figure 4 with Figure 5 The production method of the flexible sheet according to the prior art shown is a comparative example.

[0059] In addition, these Examples and a comparative example are an Example and a comparative example for explaining this invention more concretely, and this invention is not limited to the range of an Example.

[0060] (raw material)

[0061] The raw materials of Example material 10 and Comparative example material 110 are shown in Table 1.

[0062] [Table 1]

[0063] project Product name Company Name Example comparative example PTFE Teflon 6-J DuPont-Mitsui Fluorochemicals Corporation 47% by weight 46% by weight clay Crown Clay S...

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PUM

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Abstract

Provided is a method for efficiently producing a soft sheet, especially a method for producing a soft sheet wherein the rolling process is shortened.  The method for producing a soft sheet comprises: an extrusion process wherein a mixture which is the raw material for the soft sheet and a die having a cross-sectional hole for passing the mixture are prepared, and a long object is molded by passing the mixture through the cross-sectional hole of the die; a cutting process wherein the long object molded in the extrusion process is cut to obtain a predetermined cut object; and a rolling process wherein a sheet of uniform properties is formed by rolling the predetermined cut object obtained in the cutting process.  The method is characterized in that a material for the mixture is a composition produced by blending an inorganic filler into a fluororesin, and the long object formed in the extrusion process has an annular cross-sectional shape.

Description

technical field [0001] The present invention relates to a method for producing a flexible sheet such as a gasket, and more particularly to a method for producing a flexible sheet having uniform properties obtained by cutting and rolling a mixture extruded by an extruder. Background technique [0002] The fluorine-containing resin sheet with filler is a fluorine-containing resin sheet processed into a sheet shape by filling the fluorine-containing resin with a filler material. In addition to the chemical resistance, heat resistance, and non-adhesive properties of the fluorine-containing resin, , Low friction, adding the inherent functions and characteristics of fillers, or improving the wear resistance and creep resistance that are disadvantages of fluorine-containing resins, can be used in a large number of sealing materials, etc. [0003] As a method of manufacturing the soft sheet represented by the fluorine-containing resin sheet containing the filler, the following moldi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/00B29C43/14B29C55/18B29D7/00B29C47/20B29K27/18B29K105/16B29L7/00B29C48/32
CPCB29C47/0019B29C47/0021B29C53/18B29C2793/0063B29C47/0066B29K2027/18B29C47/0059B29L2007/002B29K2105/16B29C47/0004B29C48/0019B29C48/0022B29C48/022B29C48/07B29C48/08B29C43/14B29C55/18B29C69/00B29D7/00
Inventor 岩田宪树黑河真也野泽和道
Owner NIPPON VALQUA IND LTD
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