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Heat-decomposable fluororesin, resist composition, composition for color-filter protective film, resist film, and color-filter protective film

A thermally decomposable, resin-based technology, applied in instruments, optical filters, and photosensitive materials used in optomechanical equipment, can solve problems such as fluorine-containing resin segregation, insufficient smoothness, and deterioration of color filter yields.

Active Publication Date: 2017-08-29
DIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the coating film of the composition containing a fluorine atom-containing resin described in Patent Document 1, the fluorine-containing resin segregates on the surface.
As a result, there is a problem that coating unevenness and repelling tend to occur during recoating, and the smoothness of the recoated coating film cannot be sufficiently guaranteed.
If such a coating film with insufficient smoothness is directly used to manufacture a color filter, it will become a color filter with poor display quality
In order to avoid this problem, if the color filter is manufactured avoiding the area where the coating unevenness and repulsion on the coating film occur, it will cause the deterioration of the yield in the color filter manufacturing and the increase of the production cost.

Method used

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  • Heat-decomposable fluororesin, resist composition, composition for color-filter protective film, resist film, and color-filter protective film
  • Heat-decomposable fluororesin, resist composition, composition for color-filter protective film, resist film, and color-filter protective film
  • Heat-decomposable fluororesin, resist composition, composition for color-filter protective film, resist film, and color-filter protective film

Examples

Experimental program
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preparation example Construction

[0160] Examples of the method for preparing the pigment dispersion include a method of (5) kneading and dispersing the colorant and a fine dispersion step, a method of only the fine dispersion step, and the like. In the above-mentioned kneading and dispersing step, (5) a colorant, (1) part of the alkali-soluble resin, and if necessary, the above-mentioned dispersant are mixed and kneaded. Examples of equipment used in kneading include two-roll mills, three-roll mills, ball mills, trommels, dispersers, kneaders, co-kneaders, homogenizers, mixers, single-screw or two-screw extruders, etc. Extruders, etc., can disperse the colorant by using these kneaders to disperse while applying a strong shear force. In addition, it is preferable that (5) the particle size of the coloring agent be reduced in advance by a salt milling method or the like before the above-mentioned kneading.

[0161] On the other hand, in the microdispersing step, by using a disperser, a solvent is added to the ...

Embodiment 1

[0191] Example 1 (fluorine-containing pyrolytic resin of the present invention)

[0192] Put 26.8g of acrylic acid and 3,3,4,4,5,5,6,6,7,7,8,8,8-10 into a glass flask equipped with stirring device, thermometer, cooling tube, and dropping device 30.0 g of trifluoro-1-vinyloxyoctane was stirred at room temperature for 21 hours under a stream of dry air. Next, 0.003 g of p-hydroxyanisole and 107.6 g of diisopropyl ether were added, and 161.4 g of saturated aqueous sodium carbonate solution and 161.4 g of ion-exchanged water were added for liquid separation. Next, after taking out the upper layer, 161.4 g of ion-exchanged water was added and liquid-separated. Furthermore, after the upper layer was taken out, the solvent was removed to obtain a polymerizable monomer having a blocked carboxyl group represented by the aforementioned general formula (1).

[0193] Into a glass flask equipped with a stirring device, a thermometer, a cooling tube, and a dropping device, 50 g of propyle...

Embodiment 2

[0194] Embodiment 2 (same as above)

[0195] Put 32.0g of methacrylic acid and 3,3,4,4,5,5,6,6,7,7,8,8,8 into a glass flask equipped with a stirring device, a thermometer, a cooling tube, and a dropping device - 30.0 g of tridecafluoro-1-vinyloxyoctane was stirred at 60° C. for 20 hours under a stream of dry air. Next, 0.003 g of p-hydroxyanisole and 97.8 g of diisopropyl ether were added, and 146.7 g of a saturated aqueous sodium carbonate solution and 146.7 g of ion-exchanged water were added for liquid separation. Next, after taking out the upper layer, 146.7 g of ion-exchanged water was added and liquid-separated. Furthermore, after the upper layer was taken out, the solvent was removed to obtain a polymerizable monomer having a blocked carboxyl group represented by the aforementioned general formula (1).

[0196] Into a glass flask equipped with a stirring device, a thermometer, a cooling tube, and a dropping device, 50 g of propylene glycol monomethyl ether acetate was...

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Abstract

The purpose of the present invention is to provide a resin which imparts high smoothness to the pixels of a color filter or to a protective film for the pixels and which, in the case of forming a protective film on pixels or in the case of further applying a coating material on a protective film, is capable of providing either a composition for forming the protective film or a composition that enables the coating material to be satisfactorily applied. The resin is a heat-decomposable fluororesin which comprises a main chain (a) having the structure of a polymer of a polymerizable monomer and a side chain (b) having a functional group represented by the following general formula (1): [wherein R1, R2, and R3 are each a hydrogen atom or a C1-18 organic group; R4 is a fluoroalkyl group or a poly(perfluoroalkylene ether) chain; and Y1 is an oxygen atom or a sulfur atom].

Description

technical field [0001] The present invention relates to a resin, a resist composition containing the resin, a composition for a color filter protective film, and a resist film and a color filter protective film obtained by using these compositions. Each pixel and the protective film used to protect the color filter provide high smoothness, and it is possible to provide a coating film with various functions when forming a protective film on the pixel, coating a coating material on the protective film, and laminating A composition for forming the aforementioned protective film in the case of a case, and a composition capable of coating the aforementioned coating material well. Background technique [0002] Color filters used in color liquid crystal display devices and organic EL display devices generally have color pixels such as red (R), green (G), and blue (B), and black pixels are formed between them for the purpose of improving display contrast. Basic composition of matri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F20/24C08F8/14G02B5/20G03F7/004
CPCC08F20/24C08F8/14G03F7/004G02B5/20G02B1/14C08F8/18
Inventor 笹本慎高野启
Owner DIC CORP