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Laminated polyethylene resin foaming sheet

A polyethylene resin and foam sheet technology, which is applied in the field of laminated polyethylene resin foam sheets, can solve the visual problems of the packaged objects, the foam sheet is difficult to peel off, and the foam sheet has creases, etc. Excellent work efficiency, improved visibility, dust or dust adhesion prevention effect

Inactive Publication Date: 2013-11-20
JSP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this laminated foam sheet exhibits good antistatic properties, it has a problem of poor sliding
Specifically, when this foam sheet is laminated and stored, the foam sheet forms a state of mutual adhesion and is difficult to peel off, or forms a state of being easy to adhere to packaged objects such as glass substrates and is difficult to peel off. When the foam sheet is used to cover the packaged object, since the foam sheet is difficult to slide, creases are formed on the foam sheet, and the workability may be reduced.
Furthermore, when the object to be packaged is an article that is subject to static electricity such as a glass substrate, there is also a problem that peeling static electricity is generated when the foam sheet is peeled off from the glass substrate.
In addition, when this foam sheet is used as a packaging material, although the cushioning property is excellent, there is a problem in the visibility of the packaged object.

Method used

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  • Laminated polyethylene resin foaming sheet
  • Laminated polyethylene resin foaming sheet
  • Laminated polyethylene resin foaming sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~11

[0129] Examples 1-11, Comparative Examples 1-3

[0130] As the extruder (12) that is used to form polyethylene resin foam sheet, use is that the first extruder that diameter is 90mm and the tandem extruder that diameter is formed of the second extruder of 120mm, is used for forming polythene As the extruder (11) for the vinyl resin layer, a third extruder having a diameter of 50 mm and L / D=50 was used. Furthermore, the respective outlets of the second extruder and the third extruder are connected to the ring die for co-extrusion, and each molten resin can be laminated in the ring die.

[0131] The polyethylene resin and macromolecule antistatic agent compounded as shown in Table 2 are supplied to the third extruder, and heated and kneaded, and the above-mentioned mixed butane shown in Table 2 is pressed in as a volatile plasticizer agent, further kneaded, adjusted to the extruded resin temperature shown in Table 2 to make a resin melt for resin layer formation, the resin melt...

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Abstract

The invention provides a laminated polyethylene resin foaming sheet, which could prevent foaming sheets from mutual attaching or attacking on packaged goods such as a glass substrate, has excellent packaged goods packing operation, avoids peeling static electricity and prevents dusts from attaching on packaged goods. The laminated polyethylene resin foaming sheet is laminated with a polyethylene resin layer including a polymeric antistatic agent on at least one surface and is a laminated sheet having a thickness of 0.2-2.0mm and an apparent density of 0.02-0.1g / cm3. The laminated polyethylene resin foaming sheet is characterized in that the laminated sheet at least meets optionally a requirement in specific conditions (i), (ii) and (iii).

Description

[0001] This application is a divisional application of an invention patent application filed on March 25, 2010 with the title of "Laminated Polyethylene Resin Foam Sheet" and the national application number of 201010149533.8. technical field [0002] The invention relates to a laminated polyethylene resin foam sheet. Background technique [0003] In recent years, in order to prevent damage and damage to glass substrates for displays used in thin televisions, polyethylene resin extruded foam sheets rich in flexibility and cushioning properties have been used as packaging materials. The glass substrate for display is required to have a very high level of surface cleanliness, so a polyethylene resin extruded foam sheet containing a polymer antistatic agent was used as a packaging material. As such a foam seat|seet, the interlayer paper for glass substrates described in patent document 1 is mentioned, for example. [0004] But for the foam sheet that is used as the cushioning m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/18B32B27/32C08L23/06B65D65/40
CPCB32B7/025B32B27/065B32B27/18B32B27/32B32B2266/025B32B2307/21
Inventor 森田和彦后藤兼一
Owner JSP CORP
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