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Laminated film

A laminated film and thin film technology, applied in the direction of layered products, synthetic resin layered products, chemical instruments and methods, etc., can solve the problems of dust adhesion, dust adhesion, etc., and achieve the effect of less foreign matter and excellent transparency

Active Publication Date: 2010-01-06
TORAY IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are some problems in that these protective films are peeled off and removed after the assembly of the liquid crystal display etc. is completed, but when the peeling is performed, the so-called peeling electrification phenomenon occurs, dust adheres due to static electricity, or The state is electrified, thereby attaching dust, etc.
[0014] On the other hand, as the speed of the manufacturing process increases, discharge phenomena or sparks are generated due to peeling and electrification at the time of unwinding, or the adhesion of dust becomes a very annoying problem as the pattern becomes more precise.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0186] Slurry containing 45 kg of ethylene glycol relative to 100 kg of high-purity terephthalic acid was sequentially supplied over 4 hours to a tank to which approximately 123 kg of bis(hydroxyethyl) terephthalate had been added and kept at a temperature of 250°C, Pressure 1.2×10 5 In the esterification reaction tank under Pa. After completion of supply, esterification reaction was carried out over another 1 hour, and this esterification reaction product was transferred to a polycondensation tank. Next, 0.01 part by weight of ethyl diethylphosphonoacetate, 0.04 part by weight of magnesium acetate tetrahydrate, and antimony trioxide as a polymerization catalyst were added to the above-mentioned polycondensation reaction tank to which the product of the esterification reaction was transferred. (manufactured by Sumitomo Metal Mining Co., Ltd.), and the obtained polyester was adjusted to 400 ppm in terms of antimony atoms. Furthermore, as an additive, silica particles with an ...

Embodiment 2

[0203] A laminated PET film was obtained in the same manner as in Example 1 except that the following laminated film-forming coating liquid was used instead of the laminated film-forming coating liquid used in Example 1.

[0204] "Laminated Film Formation Coating Solution"

[0205] The coating liquid A1, the coating liquid B1, and the coating liquid C1 used the same coating liquid as Example 1.

[0206] The above-mentioned coating liquid A1 and coating liquid B1 are mixed according to the ratio of solid matter weight ratio of coating liquid A1 / coating liquid B1=25 / 75, and aged at room temperature for 5 days (referred to as aging for short). Coating solution 2). Then, the aged coating solution 2 and the coating solution C1 were mixed according to the solid weight ratio of the mature coating solution 2 / coating solution C1 = 100 / 20, and the resulting mixed solution was used as a laminated film forming coating. cloth liquid. The results are shown in Table 1. It is excellent in...

Embodiment 3

[0208] A laminated PET film was obtained in the same manner as in Example 1 except that the following laminated film-forming coating liquid was used instead of the laminated film-forming coating liquid used in Example 1.

[0209] "Laminated Film Formation Coating Solution"

[0210] The coating liquid A1, the coating liquid B1, and the coating liquid C1 used the same coating liquid as Example 1.

[0211] Coating solution D1:

[0212] Aqueous coating solution of colloidal silica with an average particle diameter of 45 nm.

[0213] The above-mentioned coating solution A1 and coating solution B1 are mixed according to the solid weight ratio of coating solution A1 / coating solution B1=25 / 75, and the mixed solution is aged at room temperature for 5 days (referred to as aging coating cloth liquid 2). Then, the aging coating liquid 2, coating liquid C1 and coating liquid D1 are mixed according to the ratio of solid matter weight ratio of aging coating liquid 2 / coating liquid C1 / coat...

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Abstract

A laminated film including a thermoplastic resin film and an laminated layer that is formed on at least one side of the thermoplastic resin film and comprises (A) a composition, (B) an epoxy crosslinking agent and (C) an acrylic resin having an alkyl chain of 18 to 25 carbon atoms is characterized in that the composition (A) is a composition containing at least a polythiophene and a polyanion and / or a composition containing a polythiophene derivative and a polyanion, the laminated layer contains 15 to 100 parts by weight of the acrylic resin (C) having an alkyl chain of 18 to 25 carbon atoms based on 100 parts by weight of the sum of the composition (A) and the cross-linking agent (B) and / or its reaction product, at least one side of the laminated film has a three-dimensional average surface roughness (SRa) of 3 to 50 nm, and the laminated film contains less than 10 internal contaminant particles with an average particle size of at least 100 mum per 1 m<2>, so that it has high level of electrical conductivity, good releasability and water resistance, and also has oligomer precipitation-preventing properties during heating.

Description

Technical field [0001] The present invention relates to a laminated film, and particularly to a laminated film provided by coating. More specifically, it relates to a laminated film for surface protection during processing and actual installation of polarizing plates used in liquid crystal televisions, car navigation device displays, mobile phone liquid crystal displays, computer monitors, etc. [0002] In addition, the laminated film of the present invention can be used for the hot embossing foil method that directly heat transfers to a molded part, the in-mold transfer method that performs transfer printing simultaneously with injection molding, and the transfer film by combining the transfer film and the molded part. In the vacuum press transfer method, etc., the air in the space is decompressed and then pressurized and heated to transfer printing. Background technique [0003] In recent years, as the display revolution has progressed, the shift from so-called Braun tube...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/30B32B27/36
Inventor 高田育柳桥真人牛岛正人
Owner TORAY IND INC
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