Cured film

A curing film, thermal curing technology, used in coatings, instruments, optics, etc., can solve problems such as low solubility, reduced planarization and transparency, and difficulty in applying planarization film production lines to achieve high planarization, The effect of high transparency and high solvent resistance

Inactive Publication Date: 2014-04-09
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of a flattening film used as a color filter, there are problems such as a significant decrease in flattening properties and transparency.
In addition, although polyimide or polyamic acid is soluble in solvents such as N-methylpyrrolidone or γ-butyrolactone, it has low solubility in glycol solvents or ester solvents, so it is difficult to apply to flat surfaces. Chemical film production line

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0043]

[0044] The polyester polymer of the formula (1) used in the present invention is obtained by making tetracarboxylic dianhydride (acid component) represented by the following formula (i) and the diol compound (diol) represented by the following formula (ii) Alcohol component) is reacted, and then glycidyl methacrylate is added to the generated partial carboxyl groups.

[0045]

[0046] In the above formula, A and B have the same definitions as in the aforementioned formula (1).

[0047] More specifically, the above formula (i) is reacted with formula (ii) to form a polymer (hereinafter also referred to as a specific polymer) comprising a structural unit represented by the following formula (iii), and then glycidyl methacrylate Esters are obtained by appending some of the carboxyl groups of the polymer.

[0048]

[0049] In the above formula, A and B have the same definitions as in the aforementioned formula (1).

[0050]

[0051] In a polyester polymer (herei...

Embodiment

[0100] The following examples are given to illustrate the present invention in more detail, but the present invention is not limited to these examples.

[0101] [Abbreviated symbols used in Examples]

[0102] The meanings of the abbreviations used in the following examples are as follows.

[0103]

[0104] BPDA: biphenyltetracarboxylic dianhydride

[0105] 6FDA: 4,4'-(hexafluoroisopropylidene)phthalic dianhydride

[0106] HBPA: hydrogenated bisphenol A

[0107] HBPDA: hydrogenated biphenyltetracarboxylic dianhydride

[0108] CHDO: 1,4-cyclohexanediol

[0109] GMA: Glycidyl methacrylate

[0110] THPA: 1,2,5,6-tetrahydroxyphthalic anhydride

[0111] BTEAC: Benzyltriethylammonium Chloride

[0112] TPPB: tetraphenyl bromide

[0113] TBC: 3,5-di-tert-butylcresol

[0114]

[0115] CBDA: cyclohexanetetracarboxylic dianhydride

[0116] pDA: p-phenylenediamine

[0117]

[0118] MAA: methacrylic acid

[0119] MMA: methyl methacrylate

[0120] HEMA: 2-Hydroxyethyl me...

Synthetic example 1

[0130] A solution of a specific polymer was obtained by reacting 40.0 g of BPDA, 35.3 g of HBPA, and 0.77 g of BTEAC in 175.7 g of PGMEA at 120°C for 1 hour, then adding 3.31 g of THPA and reacting for 19 hours (solid concentration: 30.0% by mass) (P1). The obtained specific polymer had Mn of 1,100 and Mw of 2,580.

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Abstract

To provide a material which can be formed into a cured film having high solvent resistance, liquid crystal-aligning properties, high transparency and high planarization, and which can be dissolved in a glycol-type solvent and is therefore applicable in the production line for a planarized film of a color filter when used in the formation of a cured film from the material. Disclosed are: a polyester resin solution for the production of a thermally cured film, which comprises a polyester polymer having a structural unit represented by the formula (1); and a cured film, a liquid crystal alignment layer and a planarized film each of which is produced from the polyester resin solution. (1) wherein A and B independently represent an organic group containing a ring structure.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of October 16, 2008, an application number of 200880109757.7, and an invention title of "Polyester Resin Solution for Thermal Curing Film Formation". technical field [0002] The present invention relates to a thermosetting film-forming polyester resin solution and a cured film obtained from the thermosetting film-forming polyester resin solution. More specifically, the present invention relates to a polyester resin solution for forming a thermosetting film, the cured film, and uses of the cured film for forming a thermosetting film having high transparency, planarization, and liquid crystal orientation ability . This resin solution for thermosetting film formation is especially suitable for the color filter overcoating agent which has the function of the liquid crystal alignment in a liquid crystal display. Background technique [0003] Generally, in optical devices...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/06C09D7/12G02F1/1333G02F1/1337C08G63/123C08G63/91C08F299/04
CPCG02F2202/025C08F299/04C08F299/00G02F2001/133519C08G63/21C08G63/123G02F1/133711G02F1/133519
Inventor 畑中真安达勲
Owner NISSAN CHEM IND LTD
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