Release film and manufacturing method therefor

A manufacturing method and technology of release film, applied in the direction of film/sheet-like adhesives, coatings, adhesives, etc., can solve the problem of difficult to provide release film, etc., achieve excellent release properties, reduce losses, save money cost effect

Active Publication Date: 2016-06-01
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a need for a release film that minimizes the thickness variation of the green sheet and has high smoothness, but it is difficult to provide a release film that meets this requirement in the present situation

Method used

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  • Release film and manufacturing method therefor
  • Release film and manufacturing method therefor
  • Release film and manufacturing method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0154] (Manufacture of Coating Liquid A)

[0155] A liquid was prepared by mixing 20% ​​by weight of the coating liquid 1, 1.1% by weight of the coating liquid 2, and 1% by weight of the coating liquid 3, and adding water so that the total solid content was 11.55% by weight.

[0156] (manufacturing of release film)

[0157] 1000g of dimethyl terephthalate, 576g of ethylene glycol, 300ppm of magnesium acetate and 400ppm of trimethyl phosphate relative to the content of the polyester resin were put into the reactor, and while methanol was flowing out, it was transesterification reaction. After the transesterification reaction finishes, with respect to the polyester resin of 100 weight parts, calcium carbonate particle A as shown in table 1 is added to ethylene glycol slurry with the content of 1.0 weight part (with the calcium carbonate of 50 weight %, 50 % by weight of ethylene glycol for mixing). Then, polycondensation reaction was carried out at 285° C. under a vacuum envi...

Embodiment 2～6

[0162] The experiment was carried out in the same manner as in Example 1, and as shown in Table 1, the type and content of the particles were changed to manufacture a polyester film.

[0163] In Table 1 below, in Example 3, Particle A and Particle B were used in combination, and in Example 6, Particle C and Particle D were used in combination.

[0164] Table 1 shows the properties of the obtained polyester film.

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Abstract

The present invention relates to a release film. More specifically, the invention relates to an in-line coating release film used for a multi-layer ceramic capacitor (MLCC), protecting a polarizing plate, and electronic materials for an OCA and the like.

Description

technical field [0001] The present invention relates to a release film, and more specifically, relates to an in-line coating (In-LineCoating) release film for electronic materials such as multilayer ceramic capacitors (MLCC), polarizer protection, and OCA. Background technique [0002] In a wide temperature range from low temperature to high temperature, polyester film (Polyesterfilm) has outstanding performance stability. Compared with other polymer resins, it has excellent chemical resistance. In addition, the mechanical strength, surface properties, and thickness uniformity are good, and it can be applied to various uses and process conditions. In this regard, it is suitable for capacitors, photographic films, labels, pressure-sensitive tapes, decorative sheet products, transfer tapes, polarizing plates, and green sheets for ceramic release sheets. With the recent trend of high speed and automation, its demand is increasing . [0003] Among them, due to the recent downt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/20C09J7/02C08J7/043C08J7/046
CPCC09D183/04C09J2467/006C09J2483/005C08J2367/02C08J2483/04B29C33/68C09J7/405C08J7/0427C08J7/043C08J7/046C08J5/18C08L67/00C09D5/20C08J2367/00C08J2483/07C08K3/26C08K2003/265C09D183/06
Inventor 林美笑
Owner KOLON IND INC
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