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Polyester composition for forming heat-cured film

A technology of thermal curing and composition, applied in instruments, optics, nonlinear optics, etc., can solve the problem of reduced planarization and transparency, difficult to apply to planarized film production lines, and low solubility of glycol-based solvents and ester-based solvents and other problems, to achieve the effect of high heat resistance, high solvent resistance and high transparency

Active Publication Date: 2013-07-17
NISSAN CHEM IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, attempts to create a planarized film for color filters have resulted in problems such as a significant decrease in planarization and transparency.
In addition, although polyimide and polyamic acid are soluble in solvents such as N-methylpyrrolidone and γ-butyrolactone, they have low solubility in glycol-based solvents and ester-based solvents, making it difficult to apply to planarization film production lines

Method used

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  • Polyester composition for forming heat-cured film
  • Polyester composition for forming heat-cured film
  • Polyester composition for forming heat-cured film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0212] The following examples are given to illustrate the present invention in more detail, but the present invention is not limited to these examples.

[0213] [Abbreviated symbols used in Examples]

[0214] The meanings of the abbreviated symbols used in the following examples are as follows.

[0215]

[0216] HBPDA: 3,3'-4,4'-Dicyclohexyltetracarboxylic dianhydride

[0217] BPDA: biphenyltetracarboxylic dianhydride

[0218] BPADA: 4,4'-(4,4'-isopropylidenediphenoxy)bisphthalic anhydride

[0219] HPA: Hexahydrophthalic Anhydride

[0220] CHDO: 1,4-cyclohexanediol

[0221] CHTO: 1,3,5-Cyclohexanetriol

[0222] PE: Pentaerythritol

[0223] HBPA: hydrogenated bisphenol A

[0224] THPA: 1,2,5,6-tetrahydrophthalic anhydride

[0225]

[0226] BTEAC: Benzyltriethylammonium Chloride

[0227]

[0228] CBDA: Cyclohexanetetracarboxylic dianhydride

[0229] pDA: p-phenylenediamine

[0230]

[0231] MAA: methacrylic acid

[0232] MMA: methyl methacrylate

[0233] HEM...

Synthetic example 1

[0251] 18.0 g of HBPDA, 4.54 g of BPDA, 15.9 g of HBPA, 2.01 g of THPA, and 0.19 g of BTEAC were reacted in 95.1 g of PGMEA at 125° C. for 19 hours to obtain a polyester solution (solid content concentration: 30.0% by mass) (P1 ). Mn of the obtained polyester was 1,310, and Mw was 3,270.

Synthetic example 2

[0253] HBPDA 12.0g, HBPA 10.2g, THPA 0.95g, and BTEAC 0.22g were reacted in PGMEA54.48g at 125 degreeC for 19 hours, and the polyester solution (solid content concentration: 30.0 mass %) was obtained (P2). Mn of the obtained polyester was 1,980, and Mw was 3,500.

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Abstract

A material which forms a cured film that has high solvent resistance, the property of aligning liquid crystals, heat resistance, high transparency, and high planarization characteristics and which, when used in forming a cured film, can be dissolved in various solvents usable in a line for producing, for example, a planarization film for color filters. The material is a polyester composition for forming heat-cured films which comprises a polyester as component (A), a crosslinking agent as component (B), and at least one diester compound represented by formula (1) as component (C). (In formula (1), P represents an alicyclic group, a group composed of an alicyclic group and an aliphatic group, or a structure represented by formula (2), and Q represents an alicyclic group or a group composed of an alicyclic group and an aliphatic group. In formula (2), R represents an alkylene group.)

Description

technical field [0001] The present invention relates to a thermosetting film-forming polyester composition and a cured film obtained from the thermosetting film-forming polyester composition. More specifically, the present invention relates to a polyester composition for forming a thermosetting film and a cured film thereof having high transparency, flattening property, liquid crystal orientation capability, high solvent resistance, and heat resistance, and to the cured Membrane application. This polyester composition for thermosetting film formation is suitable especially as a color filter overcoat agent which has a liquid-crystal orientation function in a liquid crystal display. Background technique [0002] In general, optical devices such as liquid crystal display elements, organic EL (electroluminescent) elements, and solid-state imaging elements are provided with a protective film to prevent the element surface from being exposed to solvents and / or heat during the man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/00C08K5/092C08K5/13C08K5/1515C08K5/3415C08K5/5415G02F1/13363G02F1/1337
CPCC08K5/12G02F2001/133519G02F2202/025G02F2001/133715G02F1/133519G02F1/133715C08L67/06C08G59/42C08K5/092C08K5/13C08L67/00G02F1/13363
Inventor 畑中真安达勲
Owner NISSAN CHEM IND LTD
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