Peeling film for green sheet formation

A technology of peeling film and green sheet, applied in ceramic molding machines, synthetic resin layered products, film/sheet release liner, etc. Sufficient antistatic effect

Inactive Publication Date: 2019-10-25
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the rolled release film is released one after another, there is a problem that static electricity is generated on the surface of the release film, and foreign matter such as dust adheres due to the generated static electricity.
In addition, if static electricity is generated when the release film is peeled from the formed green sheet, handling of the green sheet may become difficult, smooth transportation to the subsequent process may not be possible, or product characteristics as a capacitor may be deteriorated due to static electricity.

Method used

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  • Peeling film for green sheet formation
  • Peeling film for green sheet formation
  • Peeling film for green sheet formation

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0035] Hereinafter, the present invention will be described by taking the embodiments as examples. The present invention is not limited to the contents of the embodiments.

[0036] In 1st Embodiment, the case where (A1) energy-beam curable compound was used as (A) curable compound in the material for release agent formation is mentioned as an example and demonstrated.

[0037] The release film 1 for green sheet formation of this embodiment (hereinafter "release film 1") is as follows: figure 1 As shown, base material 11 and release agent layer 12 provided on first surface 11A of base material 11 are provided.

[0038] (Substrate)

[0039] The base material 11 of the present embodiment has a first surface 11A and a second surface 11B.

[0040] The material constituting the substrate 11 is not particularly limited, and examples thereof include polyester resins (polybutylene terephthalate resins, polyethylene terephthalate resins, and polyethylene naphthalate resins). ester r...

no. 2 approach

[0132] Next, a second embodiment of the present invention will be described.

[0133] In 2nd Embodiment, the case where (A2) thermosetting compound was used as (A) curable compound in the material for release agent formation is mentioned as an example and demonstrated.

[0134] In addition, in this embodiment, except using (A2) thermosetting compound as (A) curable compound, it is the same as above-mentioned 1st embodiment, therefore, for the release agent layer containing (A2) thermosetting compound The materials for formation and their usage methods will be described, and other descriptions will be omitted or simplified.

[0135] (Material for release agent layer formation)

[0136] The release agent layer forming material of this embodiment contains (A2) a thermosetting compound and (B) an ionic group-containing organosilicon compound.

[0137] The (B) ionic group-containing organosilicon compound of this embodiment is the same as the (B) ionic group-containing organosili...

Embodiment 1

[0196] First, a polyethylene terephthalate film (trade name "Lumirror U48", manufactured by Toray Co., Ltd., thickness: 50 μm, arithmetic mean roughness Ra (Ra 1 ): 2nm, the maximum protrusion height Rp on the first surface (Rp 1 ): 15nm, the arithmetic mean roughness Ra of the second surface (Ra 2 ): 2nm, the maximum protrusion height Rp on the second surface (Rp 2 ): 15nm).

[0197] Next, 100 parts by mass of an energy ray-curable compound, 5 parts by mass of an ionic group-containing organosilicon compound, and 10.5 parts by mass of a photopolymerization initiator were mixed and diluted with isopropanol to obtain a compound with a solid content of 15% by mass. Material for forming a release agent layer.

[0198] Next, the obtained release agent layer-forming material was applied on the first surface of the substrate with a Meyer rod, dried at 70° C. for 1 minute, and then irradiated with ultraviolet light (cumulative light intensity: 300 mJ / cm2) using a high-pressure mer...

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Abstract

This peeling film (1) for green sheet formation is used to form a green sheet, wherein the peeling film for green sheet formation is characterized in being provided with a base material (11) and a parting agent layer (12) provided on one surface (11A) of the base material (11), and in that the parting agent layer (12) is formed of a cured article of a parting agent formation material containing (A) a curable compound, and (B) an ionic group-containing silicone compound having a group containing a zwitterion represented by a general formula (4).

Description

technical field [0001] The present invention relates to a release film for green sheet formation. Background technique [0002] A release film generally consists of a substrate and a release agent layer. A green sheet can be produced by applying and drying a ceramic slurry obtained by dispersing and dissolving ceramic particles and a binder resin in an organic solvent on such a release film. In addition, the produced green sheet can be used in the production of ceramic capacitors after being peeled from the release film. [0003] In addition, when a release film is used to produce a green sheet, there is a problem that the unevenness on the surface of the release film is transferred to the green sheet, causing pinholes on the surface of the green sheet. Therefore, smoothness with few surface irregularities is required for a release film. On the other hand, as ceramic capacitors have been reduced in size and increased in density in recent years, further thinning of green s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/30B32B27/00C09J7/40
CPCB28B1/30B32B27/00C09J7/00C08J7/00
Inventor 佐藤庆一深谷知巳
Owner LINTEC CORP
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