TW201041971A - Polyester composition for forming thermoset film - Google Patents

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 cros slinking 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 ground.

Description

201041971 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a polyester composition for forming a thermosetting film and a cured film obtained therefrom. More specifically, it is a polyester composition for forming a thermosetting film having high transparency, flatness, liquid crystal alignment energy, high solvent resistance and heat resistance, a cured film thereof, and a method for applying the cured film. The polyester composition for forming a thermosetting film is suitably used as a color filter protective film which has a liquid crystal alignment function in a liquid crystal display. [Prior Art] In general, a light-shielding device such as a liquid crystal display device, an organic EL (electroluminescent) device, or a solid-state imaging device is provided with a protective film for preventing exposure of the surface of the device to a solvent and heat used in the production line. In addition to high adhesion and high solvent resistance to the substrate to be protected, the protective film is required to have properties such as transparency and heat resistance. Q When such a protective film is used as a protective film for a color filter used in a color liquid crystal display device or a solid-state imaging device, it is generally required to have a color filter or a black matrix resin for the underlying substrate. Performance, ie the performance of a flattening film. In particular, when manufacturing color display elements of the STN type and the TFT type, the color filter substrate and the counter substrate need to have a very close bonding precision, so that the cell pitch between the substrates is uniform. Further, in order to maintain the transmittance of light transmitted through the color filter, the planarizing film like the protective film needs to have high transparency. In addition, in recent years, it has been reviewed to introduce a phase difference material into a cell of a liquid crystal display device-5-201041971 to achieve cost reduction and weight reduction, and generally, the material for the difference is coated with a liquid crystal monomer and then re-hardened. The phase difference material is aligned with a material which is required to be honed and aligned to the underlying film. Therefore, after the upper layer of the protective film of the color filter is formed, a phase difference material can be formed (refer to FIG. 2 (a) a layer ( ) having the protective film of the liquid crystal alignment layer and the color filter), which can be reduced in cost. The advantages of reducing the number of steps are due to this type of material. Generally, a transparent acid resin is used as the protective film of the color filter. In terms of safety and handling, these acrylics

Solvent and ester solvent of ethyl lactate and butyl lactate. This grease thermosetting and photocuring impart heat resistance and solvent resistance (2). The conventional thermosetting and photocurable acrylic acid has appropriate transparency and flattening properties, but sufficient alignment properties cannot be obtained for such flat grinding treatment. Further, in general, the liquid crystal alignment layer is made of a solvent-soluble polyamic acid. It has been reported that the solvent resistance can be imparted to the material when the material is completely imidized, and the alignment property by the honing is known (Patent Document 3). However, in the case of color filters, there are problems such as flatness and transparency which are greatly reduced. Although amines and polylysines are soluble in N-methylpyrrolidone and γ_agents, they are solvents and esters of diols. The solubility of the solvent is used to produce a flat film production line. This type of material is used. In order to make the liquid crystal alignment after the treatment). Fig. 2 (b) This is a highly demanding propylene resin. The diol resin is widely used. The resin has a film which is treated with ruthenium and post-bake. The film is formed, and the solution of the polypyrene-butyrolactone is low, and it is difficult to be -6 - 201041971 [Explanation] The problem to be solved by the present invention is to provide a cured film. After forming, it has high solvent resistance, liquid orientation, heat resistance, high transparency, and high flatness, and is soluble in the formation of a cured film. It is suitable for the flat film production line of color filters.材料 方法 Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο Ο ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' It is at least one diester compound represented by the following formula (1) containing the polyester of the component (A), the crosslinking agent of the component (B), and the component (C). [Chemical Formula 1] ❹ hooc-qV〇>"°VQ"cooh,0R, Ο o (2) (wherein 'p is a group formed by an alicyclic group, an alicyclic group or an aliphatic group or a structure represented by the formula (2), and Q is an alicyclic group or an alicyclic group and an aliphatic group The base formed by the base; in the formula (2), R is an alkylene group). The second aspect is a polyester composition for forming a thermosetting film according to the second aspect, wherein the component (C) is the following formula (iii) The diester compound obtained by reacting the diol compound of 201041971 anhydride 1.7 to 2 moles 1 mole to the dicarboxylic acid represented by the following formula (iv). [Chemical 2] HO-P-OH ( Hi) Ο Λ .〇(iv) (2) The radical formed by the aliphatic group or the R contained in the alicyclic group is an alkyl group. The polyester is composed of a hydrogen atom, an ether group, a sulfonate. An acid-substituted carbon atom single bond or a carbon atom thermosetting film is formed (wherein P is an alicyclic group, an alicyclic group, and a base of the moon or a structure represented by the formula (2), and Q is an alicyclic ring 5 and a fat The group formed by the group, P and Q may each be an arbitrary hydrogen atom substituted by an aliphatic group; in the formula (2), the third viewpoint is a thermosetting film of the second aspect, wherein P is a formula The base represented by (1P1). ] —R12-P1-^R11-P1^R13- (1P1) (wherein P1 is a cyclic saturated hydrocarbon group, and the P1 group is independently substituted by an aliphatic group; rm is a single bond, a carbonyl group, and a carbon number of 1 to a saturated hydrocarbon group of 8 or a saturated hydrocarbon group of 1 to 8 in terms of fluorine, R12 and R13 each independently have an alkylene group of 1 to 5, and h is 0 or 1). The fourth viewpoint is related to the second viewpoint or the third viewpoint. a polyester composition, wherein Q is a group represented by the following formula (1Q1): -8- 201041971 [Chemical Formula 4] -Q1 - X - (1Q1) (wherein Q1 is a ring extension of 4 to 8 carbon atoms An alkyl group or a cycloalkenyl group, wherein any hydrogen atom in the Q1 group may be substituted by an aliphatic group or a phenyl group; X is a single bond or an alkylene group having 1 to 3 carbon atoms). The fifth aspect is the polyester composition for forming a thermosetting film according to the first aspect, wherein the component (C) contains at least one polyvalent ester compound represented by the following formula (I-a).化(^γ〇, Pa {〇V|f^Qa, COO^|—Ra-^^Ra)j· (1-a ) ( 2-a) (wherein, Pa is oxygen An alicyclic group or a q-aliphatic alkyl group interrupted by an atom or a nitrogen atom, or a structure represented by the formula (2-a), Qa is an alicyclic group, and t is an integer of 1 to 5; (2-a) Wherein, Ra is an alkyl group). The polyester composition for forming a thermosetting film according to any one of the first aspect to the fifth aspect, wherein the component (A) is a polyester having a structural unit represented by the following formula (3). [化6] / HOOC ^OOH \ 十0_Π〇-Β十 (3)

\ 0 ° I 201041971 (wherein A is an alicyclic group or an aliphatic group bonded to a 4-valent organic group of four bonding bonds, and B is an alicyclic group or an aliphatic group bonding 2 bonding bonds (2) The polyester composition for forming a thermosetting film according to any one of the first aspect to the sixth aspect, wherein the component (A) is a compound represented by the following formula (1) A polyester obtained by reacting a carboxylic acid dianhydride with a diol compound represented by the formula (ii).

(wherein, A is a tetravalent organic group in which an alicyclic group or an aliphatic group is bonded to four bonding bonds, and B is an alicyclic group or a divalent organic group in which an aliphatic group is bonded to two bonding bonds) . According to a sixth aspect of the present invention, in the above formula (3), A is represented by the following formula (A-1) to formula (A-8); At least one selected from the group consisting of at least one selected from the group represented by the following formulas (B-1) to (B-5). -10- 201041971 [Chem. 8] XX Yang \ surgery (A-1, (A-2, (A-/, (between

(A-?)

X (A-5) (A-δ) [Chemistry 9]

(A-6) The polyester composition for forming a thermosetting film according to any one of the first aspect to the eighth aspect, wherein the weight average molecular weight of the polyester of the component (A) is polystyrene conversion Below 1,000 to 3, hey. The present invention relates to a polyester composition for forming a thermosetting film according to any one of the first aspect to the ninth aspect, which further comprises a phenol compound for an antioxidant of the component (D). The polyester composition for forming a thermosetting film according to any one of the first aspect to the first aspect, further comprising a decane coupling agent for the component (E). The present invention relates to a polyester composition for forming a thermosetting film according to any one of the first aspect to the first aspect, which further comprises a bismaleimide compound for the component (F). The polyester composition for forming a thermosetting film according to any one of the first aspect to the first aspect, wherein the component (B) is contained in an amount of 3 to 50 parts by mass based on 100 parts by mass of the component (A). And (C) ingredients 1 to -11 - 201041971 100 parts by mass. The first aspect is a polyester composition for forming a thermosetting film according to the first aspect, which contains (D) component 〇.〇1 to 5 parts by mass based on 100 parts by mass of the component (A). The fifteenth aspect is the polyester composition for forming a thermosetting film according to the above aspect, wherein the component (E) is contained in an amount of from 0.5 to 30 parts by mass based on 100 parts by mass of the component (A). The present invention relates to a polyester composition for forming a thermosetting film according to the above aspect, wherein the component (F) is contained in an amount of from 0.5 to 50 parts by mass based on 100 parts by mass of the component (A). The seventeenth aspect relates to a cured film which is a polyester composition for forming a thermosetting film according to any one of the first aspect to the sixteenth aspect, wherein the liquid crystal alignment layer is used. The polyester composition for forming a thermosetting film according to any one of the first aspect to the sixteenth aspect. (Effects of the Invention) The polyester composition for forming a thermosetting film of the present invention can form a cured film having a liquid crystal alignment energy in addition to high planarization property, high transparency, high solvent resistance, and high heat resistance. It is a material for forming a liquid crystal alignment film and a planarization film. In particular, the "liquid crystal alignment layer" which combines the characteristics of both the previously formed liquid crystal alignment film and the protective film of the color filter can be formed at one time, so that the manufacturing process can be simplified, the number of steps can be reduced, and the cost can be reduced. -12- 201041971 Further, the polyester composition for forming a thermosetting film of the present invention is soluble in a glycol solvent, and is therefore suitable for use in a flattening film mainly using such a solvent to produce a pipe. (Best Mode for Carrying Out the Invention) As described above, the acrylic resin and the polyimide-based cured film which have been previously proposed cannot sufficiently satisfy the flatness required for the liquid crystal alignment film and the planarizing film, transparency, alignment, and the like. performance. In the prior art, the alignment material of the liquid crystal display device has been proposed to use polyester (see Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. 2002-229039). The film has poor solvent resistance. The present invention is characterized in that 'the thermosetting polyester is used to enhance the properties such as the aforementioned flatness, transparency, and alignment. That is, the present invention is a polyester composition for forming a thermosetting film comprising the polyester for (A) component, the crosslinking agent for (BQ) component, and the following formula (1) for (C) component. The diester compound represented. [10] hooc^qV°"p"°YQnc〇〇h, 0R, Ο O ~R〆〆(1) (2) (wherein P is an alicyclic group, contains an alicyclic group and an aliphatic group) The base of the group formed or the structure represented by the formula (2), Q is an alicyclic group or a group formed by an alicyclic group and an aliphatic group of -13 to 201041971, and in the formula (2), R is a stretching alkyl). Further, in addition to the above components (A) to (C), the polyester composition for forming a thermosetting film may further contain a phenol compound for the antioxidant of the component (D) and a decene couple for the component (E). Mixture, (F) component of the bismaleimide compound. The components will be described in detail below. [(A) component] The polyester of the component (A) is preferably a polyester containing a structural unit represented by the following formula (3), more preferably a polyester formed of a structural unit represented by the formula (3). . [化 12]

HOOC COOH Ο一 C—A—C—O—B II II Ο Ο

(3) In the above formula, A is a tetravalent organic group in which an alicyclic group or an aliphatic group is bonded to four bonding bonds, and B is a divalent organic group in which an alicyclic or aliphatic group is bonded to two bonding bonds. . The above A is preferably a group represented by the following formula (3A1), formula (3A2) or formula (3A3). -14 - 201041971 X >1-R<(3A1) (3A2) (3A3) wherein A1 is a cyclic saturated hydrocarbon group, preferably a cyclic saturated hydrocarbon group having 4 to 8 carbon atoms, more preferably It is a cyclic saturated hydrocarbon group having 4 to 6 carbon atoms. Further, any of the hydrogen atoms contained in the A1 group may be independently substituted with an aliphatic group, and two of the substituents may be bonded to each other to form a 4- to 6-membered ring. The aliphatic group of the substituent at this time is preferably an aliphatic group having 1 to 5 carbon atoms, more preferably an aliphatic group having 1 to 3 carbon atoms. When the substituents are bonded to form a ring, for example, a crosslinked cyclic hydrocarbon group such as a norenyl group or an adamantyl group or a partially or fully hydrogenated condensed polycyclic hydrocarbon group may be formed. In the above formula, R1 is a single bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 8 carbon atoms or a saturated hydrocarbon group having 1 to 8 carbon atoms which is substituted by a fluorine atom. Preferred are a single bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 5 carbon atoms or a saturated hydrocarbon group having 1 to 5 carbon atoms substituted by a fluorine atom. Further, R2 is a saturated hydrocarbon group having 1 to 8 carbon atoms, preferably a saturated hydrocarbon group having 1 to 5 carbon atoms, more preferably a saturated hydrocarbon group having 1 to 3 carbon atoms, and A having a tetravalent organic group in the formula (3) Specific examples are preferably the following formula (A-1) to formula (A-8). Among the groups represented by the following (A-1) to (A-8), A is particularly preferably a group selected from the formula (A-1) or (A-2). -15- 201041971 (A-1) (A-2) (A*3} (A-4) κ (A-δ) (Α-6)

(Α-8) In the above formula (3), fluorene is a divalent organic group in which two bonding bonds are bonded to an alicyclic group or an aliphatic group, and preferably a formula (3Β1) or a formula (3Β2) The base of expression. -r4-b1-^r3-b1^-r5---r6-b2-r7- (3B1) (3B2) wherein B1 is a cyclic saturated hydrocarbon group, preferably having 4 to 8 carbon atoms The cyclic saturated hydrocarbon group is more preferably a cyclic saturated hydrocarbon group having 4 to 6 carbon atoms. Any of the hydrogen atoms contained in the oxime group may be independently substituted with an aliphatic group. The aliphatic group of the substituent at this time is preferably an aliphatic group having 1 to 5 carbon atoms, more preferably an aliphatic group having 1 to 3 carbon atoms. When these substituents are bonded to form a ring, for example, a crosslinked cyclic hydrocarbon group such as a norenyl group or an adamantyl group or a partially or fully hydrogenated condensed polycyclic hydrocarbon group can be formed. Also Β 2 is a stretched phenyl group. Wherein R3 is a single bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 8 carbon atoms or a saturated-16-201041971 hydrocarbon group having 1 to 8 carbon atoms substituted by a fluorine atom, preferably a single A bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 5 carbon atoms or a saturated hydrocarbon group having 1 to 5 carbon atoms which is substituted by a fluorine atom. R4 and R5 are each independently a single bond or a stretch alkyl group having 1 to 5 carbon atoms. A preferred one is a single bond or an alkylene group having 1 to 3 carbon atoms. R6 and R7 each independently represent a stretch alkyl group having 1 to 5 carbon atoms, and preferably a alkylene group having 1 to 3 carbon atoms. Also, k is 0 or 1. Specific examples of B of the divalent organic group in the formula (3) are preferably the following formulas (B-1) to (B-5). Among the groups represented by the following formulas (B-1) to (B-5), B is particularly preferably a group selected from (B-1) to (B-4). [Chemistry 16]

(B-1) (B-2) (B*3> (B-4) (B-5) The polyester of the component (A) is preferably composed of the structural unit represented by the formula (3), and A is a structure of at least one selected from the group consisting of the formulas (3A1) to (3A3), but may contain a structure other than the group represented by the formula (3A1) to the formula (3A3). The structure is not particularly limited, and is preferably a structure selected from at least one of the groups represented by the following formulas (3A4) to (3A5). 201041971 [Chem. 17]

>3C (3A5) (3A4) In the above formula, R8, R9 and R1Q are each independently a single bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 8 carbon atoms or a carbon atom substituted by a fluorine atom. The saturated hydrocarbon group of 1 to 8 is preferably a single bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 5 carbon atoms or a saturated hydrocarbon group having 1 to 5 carbon atoms which is substituted by a fluorine atom. R8 is particularly preferably a single bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 5 carbon atoms or a saturated hydrocarbon group having 1 to 5 carbon atoms substituted by a fluorine atom, and R9 is particularly preferably an ether group or a carbon atom. a saturated hydrocarbon group of 1 to 5 or a saturated hydrocarbon group having 1 to 5 carbon atoms substituted by a fluorine atom '>(> particularly preferably a carbonyl group, an ether group, an acid extension group, a saturated hydrocarbon group having 1 to 5 carbon atoms or The saturated hydrocarbon group having 1 to 5 carbon atoms which is substituted by a fluorine atom, and h is 0 or 1. Specific examples of the above formulas (3A4) to (3A5) are preferably represented by the following formulas (al) to (a7). 18]

In the polyester of the component (A) used in the present invention, in the structural unit represented by the above formula (3), A is preferably at least 60 mol% or more expressed by the above formulas (3A1) to (3A3). At least one structural unit selected from the group of bases. The polyester of the component (A) preferably has a weight average molecular weight of from 000 to 30,000, more preferably from 1,500 to 10,000. When the weight average molecular weight of the polyester of the component (A) is less than the above range, the alignment property and the solvent resistance tend to be lowered, and when it exceeds the above range, the planarization property is lowered. <Production Method of (A) Component> The polyester of the component (A) of the present invention can be obtained, for example, by polymerizing a tetracarboxylic dianhydride and a diol compound. More preferably, a tetracarboxylic dianhydride (hereinafter also referred to as an acid component) containing a tetracarboxylic dianhydride represented by the following formula and a binary compound containing a diol compound represented by the following formula (ii) An alcohol compound (hereinafter also referred to as a glycol component) is obtained by reaction.

In the above formula, 'A and B are the same as defined in the above formula (3), and preferred embodiments are also the same as described above. In the polyester of the above (A) component, the total ratio of the tetracarboxylic dianhydride (the total amount of the acid component) to the total amount of the diol compound (the total amount of the diol component is -19 - 201041971), that is, < The total number of moles of the diol compound >/<the total number of moles of the tetracarboxylic dianhydride compound> is preferably from 0.5 to 1.5. In the case of the general polycondensation reaction, the degree of polymerization of the polyester formed when the molar ratio is approximately 1 is large, and the molecular weight can be increased. The polyester of the component (A) is preferably an acid anhydride terminal in order to avoid a decrease in storage stability. The end of the above polyester varies depending on the ratio of addition of the acid component to the glycol component. For example, when the reaction is carried out with an excess of an acid component, the terminal is liable to be an acid anhydride. Further, when the polymerization is carried out in an excess amount of the glycol component, the terminal tends to become a hydroxyl group. At this time, the terminal hydroxyl group is reacted with a carboxylic anhydride, and the terminal hydroxyl group can be blocked with an acid anhydride. Such carboxylic anhydrides such as phthalic anhydride, trimellitic anhydride, maleic anhydride, naphthalic anhydride, hydrogenated phthalic anhydride, itaconic anhydride, tetrahydrophthalic anhydride, 1,2-cyclohexanedicarboxylic anhydride, 4-methyl Base-1,2-cyclohexanedicarboxylic anhydride, 4-phenyl-1,2-cyclohexanedicarboxylic anhydride, methyl-5-norbornene-2,3-dicarboxylic anhydride, tetrahydroanthracene Anhydride, methyltetrahydrophthalic anhydride, bicyclo[2.2.2]octene-2,3-dicarboxylic anhydride, and the like. When the polyester of the above (A) component is produced, the reaction temperature of the acid component and the glycol component may be selected from any temperature of 50 to 200 ° C, preferably 80 to 170 ° C. For example, the reaction temperature is from 10 ° C to 140 ° C, and the reaction time is from 2 to 48 hours to obtain a polyester. Further, the reaction temperature at the time of protecting the terminal hydroxyl group with an acid anhydride may be selected from any temperature of 50 to 200 ° C, preferably 80 to 170 ° C. The reaction of the above acid component with the glycol component is generally carried out in a solvent -20-201041971. The solvent to be used at this time may be one which does not contain a hydroxyl group and an amine group and a functional group which can react with an acid anhydride, and is not particularly limited. For example, N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, N-vinylpyrrolidone, N-methylcaprolactam, dimethylammonium , tetramethyl urea, dimethyl mill, hexamethyl sulfoxide, m-cresol, γ-butyrolactone, cyclohexanone, cyclopentanone, methyl ethyl ketone, methyl isobutyl ketone, 2 -heptanone, propylene glycol monomethyl ether acetate, propylene glycol propyl ether acetate, methyl 3-methoxypropionate, methyl 2-methoxypropionate, 3-methoxypropionic acid Ester, ethyl 2-methoxypropionate, ethyl 3-ethoxypropionate, ethyl 2-ethoxypropionate, and the like. These solvents may be used singly or in combination, but propylene glycol monomethyl ether acetate is more preferable in terms of safety and pipeline suitability for a protective film of a color filter. Further, in the range in which the polyester formed by the polymerization reaction is not precipitated, the solvent may be used in combination with a solvent which does not dissolve the polyester. Further, a catalyst may be used in the reaction of the above acid component (formula (i)) with a glycol component (formula (ii) Q). Specific examples of the catalyst used in polymerizing the polyester are, for example, benzyltrimethylammonium chloride, benzyltrimethylammonium bromide, benzyltriethylammonium chloride, benzyltriethylammonium bromide, benzylidene. a quaternary ammonium salt such as tripropylammonium chloride, benzyltripropylammonium bromide, tetramethylammonium chloride, tetraethylammonium bromide, tetrapropylammonium chloride or tetrapropylammonium bromide, Tetraphenyl squaride chloride, tetraphenyl sulfonium bromide, benzyl triphenyl squaride chloride, benzyl triphenyl squarate bromide, ethyl triphenyl squaride chloride, ethyl triphenyl sulfonium bromide, etc. Quaternary 辚-21 - 201041971 The thus obtained solution containing the polyester of the component (A) can be used as it is for preparing a polyester composition for forming a thermosetting film. Further, the obtained polyester can be precipitated in a weak solvent such as water, methanol, ethanol, diethyl ether or hexane, and recycled. <(B) Component> The component (B) of the present invention is a crosslinking agent. The crosslinking agent is a compound such as an epoxy compound or a methylol compound, but is preferably an epoxy compound having two or more epoxy groups. The compound is, for example, tris(2,3-epoxypropyl)trimeric isocyanate, 1,4-butanediol diglycidyl ether, 1,2-epoxy-4-(epoxyethyl)cyclohexane , glycerol triglycidyl ether, diethylene glycol diglycidyl ether, 2,6-diglycidylphenyl glycidyl ether, 1,1,3-tris[p-(2,3-epoxypropoxy Phenyl]propane, 1,2-cyclohexanedicarboxylic acid diglycidyl ester, 4,4'-methyl bis(N,N-diglycidyl aniline), 3,4-epoxycyclohexyl Methyl-3,4-epoxycyclohexanecarboxylate, trimethylolethane triglycidyl ether, bisphenol A-diglycidyl ether, and pentaerythritol-based polyglycidyl ether. Further, commercially available compounds can be used from the viewpoint of availability. The following is a specific example (trade name), but it is not limited thereto. YH-434, YH434L (Dongdu Chemical Co., Ltd.) and other amine-based epoxy resins; Yepperit GT-401, GT-403, GT-301, GT-3 02, Shiroji 202 1 Epoxy resin with cyclohexene oxide structure, such as Luoji 3000 and Shiluoji P-2021 (made by Taischer Chemical Industry Co., Ltd.); Jupiter 1 11, 1 〇0 2, 10〇 3, 1004, 1007, 1009' 1010, 828 (above is oily shell ring-22- 201041971 oxygen (stock) (now Japan epoxy resin (share))) and other bisphenol A epoxy resin; Kete 807 (oily shell epoxy (stock) (now manufactured by Japan Epoxy Resin Co.)) and other bisphenol F type epoxy resin; yuppiet 152, 154 (above is oily shell epoxy ( Phenolic novolac type epoxy resin such as epoxide phenolic varnish type epoxy resin; EOCN-102, EOCN-103S, EOCN- 104S, EOCN-1020, EOCN-1025, EOCN-1027 (The above is made by Nippon Kayaku (0 shares)), Yippitol I8OS75 (oiled shell epoxy (shares) (now Japanese epoxy resin) Creatin phenol Varnish-type epoxy resin; Danakol EX-252 (Nachet), CY 175, CY 177, CY 179, Airlar CY-182, CY-192, CY-184 (above CIBA- GEIGY, AG), Yepikulung 200, 400 (above DIC (share) system), Yippitol 871, 8 72 (oiled shell epoxy (share) (now Japanese epoxy resin) , ED-5661, ED-5662 (above), alicyclic epoxy resin; Danakol EX-611, EX-612, EX-❹ 614, EX-622, EX -41 1. Aliphatic polyglycidyl ethers such as EX-5 12, EX-522, EX-421, EX-3, EX-3 14, and EX-321 (made by Kaiser). A polymer having an epoxy group having at least a compound having at least 2 epoxy groups may be used. The polymer having such an epoxy group may be used without particular limitation. The above epoxy group-containing polymer may, for example, be used, A polyaddition reaction of an epoxy group-addition monomer, for example, poly-glycidyl acrylate, glycidyl methacrylate and ethyl methacrylate, -23-201041971 polymer, glycidyl group A a polyaddition polymer such as a copolymer of acrylate and a copolymer of styrene and 2-hydroxyethyl methacrylate, and a polycondensation polymer such as an epoxy novolac. Further, the above epoxy group-containing polymer may have a hydroxyl group. The polymer compound is obtained by reacting a compound having an epoxy group such as epichlorohydrin or glycidyl p-toluenesulfonate. The weight average molecular weight of such polymers is, for example, from 300 to 200,000. These epoxy compounds having two or more epoxy groups may be used singly or in combination of two or more kinds. In the polyester composition for forming a thermosetting film of the present invention, the content of the crosslinking agent of the component (B) is preferably from 3 to 50 parts by mass, more preferably from 5 to 50 parts by mass per 100 parts by mass of the polyester of the component (A). 40 parts by mass, particularly preferably 10 to 30 parts by mass. When the ratio is too small, the solvent resistance and heat resistance of the cured film obtained from the polyester composition for forming a thermosetting film are lowered, and when it is too large, solvent resistance and storage stability are lowered. <(C) Component> The component (C) is a diester compound represented by the following formula (1). The diester compound of the component (C) in the present invention may be used alone or in a plurality of compounds represented by the formula (1).

HOOC, Q 丫〇, P〆0丫Q, COOH R. Ο ο(1) -24- (2) 201041971 where p is an alicyclic group, an alicyclic group, and an aliphatic group. a group formed by the formula or the formula (2), Q is a group formed by an alicyclic group or an alicyclic group and an aliphatic group, and each of P and Q may be 'in which any hydrogen atom is replaced by an aliphatic group . Further, in the formula (2), R is a stretching group, and R is preferably an alkyl group having 1 to 6 carbon atoms, more preferably an alkyl group having 1 to 5 carbon atoms, particularly preferably a carbon number. An alkyl group of 1 to 3. In the above formula, a preferred structure of P is represented by the above formula (2) or the following formula (1 P 1 ). __R12_p1^.R11.p1^_R13_ (1P1) wherein P1 is a cyclic saturated hydrocarbon group, preferably a cyclic saturated hydrocarbon group having 4 to 8 carbon atoms, more preferably 4 to 6 carbon atoms. A cyclic saturated hydrocarbon group.

Any of the hydrogen atoms in the U group P1 may be independently substituted with an aliphatic group. The aliphatic group of the substituent is preferably an aliphatic group having 1 to 5 carbon atoms, more preferably an aliphatic group having 1 to 3 carbon atoms. In the above formula, R11 is a single bond, a carbonyl group, an ether group, a sulfonic acid group, a saturated hydrocarbon group having 1 to 8 carbon atoms or a saturated hydrocarbon group having 1 to 8 carbon atoms which is substituted by a fluorine atom, preferably a single bond or a carbonyl group. And an ether group 'sulfonic acid group, a saturated hydrocarbon group having 1 to 5 carbon atoms or a saturated hydrocarbon group having 1 to 5 carbon atoms which is substituted by a fluorine atom. -25- 201041971 R12 and R13 are each independently a single bond or a pendant group having 1 to 5 carbon atoms, preferably a single bond and an alkylene group having 1 to 3 carbon atoms. Again h is 0 or 1. Specific examples of p of the above formula (1) are preferably represented by the following formulae (P-1) to (P-5). [化22]

(P-3)

In the above formula (2), Q is a group formed by an alicyclic group or an alicyclic group and an aliphatic group, and is preferably a group represented by the following formula (1Q1). — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — Ring-chain alkenyl. Any hydrogen atom in the group Q1 may be substituted with an aliphatic group. The substituent is an aliphatic group, preferably an aliphatic group having 1 to 6 carbon atoms, more preferably an aliphatic group having 1 to 3 carbon atoms. Further, X is a single bond or an alkylene group having 1 to 3 carbon atoms. Specific examples of Q are preferably, for example, cyclobutane, methylcyclobutane, dimethyl-26-201041971 cyclobutane, cyclopentyl, cyclohexyl, methylcyclohexyl, tetrahydroanthracene Or a methyltetrahydroindenyl group or the like. The diester compound of the component (C) of the present invention may preferably be a diol 1 mole represented by the following formula (iii) and a dicarboxylic anhydride I·7 to 2 mole represented by the formula (iv). 1.8 to 2 moles of reaction. [Chem. 24] 0 : 〇Η ψ (8), 〆, 〇 (2) In the above formula (iii) and formula (iv), P is a group or formula formed by an alicyclic group, an alicyclic group, and an aliphatic group. (2) The structure represented, q is a group formed by an alicyclic group or an alicyclic group and an aliphatic group, wherein 'R is an alkylene group. Further, P, Q and R are the same as defined in the above formulas (1) and (2), and preferred embodiments are also the same as described above. The diol compound represented by the above formula (iii) and the dicarboxylic acid anhydride represented by the formula (iv) of the present invention may each be used alone or in combination with a plurality of diol compounds represented by the above formula (iii). Specifically, for example, hydrogenated bisphenol A, 4,4'-dicyclohexanol, hydrazine, 4_cyclohexanediol, hydrazine, 3_cyclohexanediol, 1,4-cyclohexanedimethanol, 1,3_ Cyclohexanedimethanol, p-xylene glycol, m-xylene glycol, and the like. The component (C) may be a polyvalent ester compound represented by the following formula (i-a). In the present invention, the polyvalent ester compound may be used alone or in a plurality of compounds represented by the formula (e-a) in the range of -27 to 201041971. HOOC^V〇X Pa VQaXC〇〇H| -Ra^Ra^ (1-a) (2-a) where 'Pa is an alicyclic group or a fat which can be interrupted by an oxygen atom or a nitrogen atom A hydrocarbon group or a structure represented by the formula (2-a), Qa is an alicyclic group, t is an integer of 1 to 5, and Pa and (^ may each be an arbitrary hydrogen atom in the group substituted by an aliphatic group. Further, in the formula (2-a), Ra is an alkylene group, and Ra is preferably an alkylene group having 1 to 6 carbon atoms, more preferably an alkylene group having 1 to 5 carbon atoms, particularly preferably a carbon atom number. The above-mentioned polyvalent ester compound can be obtained by reacting a diol represented by the following formula (iii-a) with a dicarboxylic acid anhydride represented by the formula (iv-a). 0 HO-Pa-f OH )t Qa^O (iv-a) (Hi-a) y - Ri0{R Buckle (2-a) In the above formula and formula (iv_a), 'Pa is an oxygen atom or nitrogen The atomic interrupted alicyclic group or the aliphatic steroid group or the structure represented by the formula (2-a) is an integer from 1 to 5' Qa is an alicyclic group 'in the formula (2-a), 113 is Alkyl. also. And 匕 and 1 are the same as defined in the above formula (1-a) and formula (2-a), and the preferred embodiment is also the same as above. -28-201041971 In the present invention, the polyvalent alcohol compound represented by the above formula (iii-a) and the dicarboxylic acid anhydride represented by the formula (iv-a) may be used singly or in plural. The polyvalent alcohol compound represented by the above formula (iii-a) is a compound such as 1,3,5-cyclohexanetriol or pentaerythritol. Specific examples of the polyvalent alcohol compound represented by the above formula (iii-a) are shown below.

[化27]

Specific examples of the dicarboxylic acid anhydride represented by the above formula (iv) are, for example, 1,2-cyclohexanedicarboxylic anhydride, 4-methyl-1,2-cyclohexanedicarboxylic anhydride, tetrahydrophthalic anhydride -29 - 201041971 , methyl tetrahydrophthalic anhydride, hexahydrophthalic anhydride, and the like. When the diester compound (or polyvalent ester compound) of the above component (C) is produced, the reaction temperature of the diol compound (or polyvalent alcohol compound) with the dicarboxylic anhydride may be from 50 to 200 ° C, preferably from 80 to 17. Choose from any temperature of 〇 °C. For example, the reaction temperature is from 1 ° C to 140 ° C, and the reaction time is from 2 to 48 hours to obtain a diacetate compound (or a polyvalent ester compound). The reaction of the above diol compound (or polyvalent alcohol compound) with a dicarboxylic acid anhydride is generally carried out in a solvent. The solvent to be used at this time is not particularly limited as long as it does not contain a functional group capable of reacting with an acid anhydride such as a hydroxyl group #% I f group or an amine group. For example, N,N-dimethylformamide, N,N-dimethylacetamide, N-methylpyrrolidone, N-vinylpyrrolidone, N-methylcaprolactam, dimethyl Kea, tetramethyl urea, dimethyl hydrazine, hexamethyl hydrazine, m-cresol, γ-butyrolactone, cyclohexanone, cycloheptanone, methyl ethyl ketone, methyl isobutyl Ketone, 2-heptanone, propylene glycol monomethyl ether acetate, propylene glycol propyl ether acetate, methyl 3-methoxypropionate, methyl 2-methoxypropionate, 3-methoxypropane Ethyl acetate, ethyl 2-methoxypropionate, ethyl 3-ethoxypropionate, ethyl 2-ethoxypropionate, and the like. These solvents may be used singly or in combination, but propylene glycol monomethyl acetate is more preferable in view of safety and suitability for the line of the protective film of the color filter. Further, in the range in which the diester compound produced by the polymerization reaction is not precipitated, a solvent which does not dissolve the diester compound may be used in combination with the above solvent. Further, the above diol compound (formula (iii)) (or polyvalent alcohol compound (iii-a)) can be used in combination with diacetic anhydride (formula (iv) or formula (iv-a) -30-201041971 Specific examples of the catalyst used at this time are, for example, benzyltrimethylammonium chloride, benzyltrimethylammonium bromide, benzyltriethylammonium chloride, benzyltriethylammonium bromide, benzylidene. a quaternary ammonium salt such as tripropylammonium chloride, benzyltripropylammonium bromide, tetramethylammonium chloride, tetraethylammonium bromide, tetrapropylammonium chloride, tetrapropylammonium bromide, Tetraphenyl squaride chloride, tetraphenyl sulphate bromide, benzyl triphenyl sulfonium chloride, benzyl triphenyl squarate bromide, octyltriphenyl sulphate, ethyl triphenyl sulfonium bromide In the polyester composition for forming a thermosetting film of the present invention, the content of the component (C) is preferably from 1 to 1 part by mass based on 100 parts by mass of the polyester of the component (A). It is preferably from 5 to 60 parts by mass. When the ratio is too small, the alignment and flatness of the cured film obtained from the polyester composition for forming a thermosetting film are lowered, and when it is too large, it is lowered. Light transmittance. (D) Component> Q The present invention may contain an antioxidant of the component (D). The component (D) is effective for preventing the high temperature baking of the present invention in the process of forming a thermosetting film. The film is discolored. The antioxidant of the component (D) is particularly preferably a phenol compound, and specifically, for example, '2,6-di-t-butyl-4-methylphenol, 2,6-di-t-butyl-phenol, 2 , 4,6-tris(3',5'-di-t-butyl-4'-hydroxybenzyl), pentaerythritol tetra[3-( 3',5'-di-t-butyl-4' -hydroxyphenyl)propionate], acetone bis(3,5-di-t-butyl-4-hydroxyphenyl)thiol, 4,4'-extended methyl bis(2,6-di- T-butylphenol), methyl 3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, -31 - 201041971 4,4'-sulfur-(2,6-di- T-butylphenol), tris(3,5,di-t-butyl-4-hydroxybenzyl)trimeric isocyanate, bis(3,5-di-t-butyl-4-hydroxybenzyl) Sulfide, etc. The benzene vinegar compound of these antioxidants is not particularly limited to the above. These may be used alone or in combination of two or more. These antioxidants are also 2,6-di-t-butyl. 4--4-cresol, 2,4,6-three (3' , 5'-di-t-butyl-4'-hydroxybenzyl), 4,4,-extended methylbis(2,6-di-t-butylphenol), etc. do not degrade the orientation and are heat resistant The phenol compound of the antioxidant of the component (D) in the present invention is preferably used in an amount of from 1 to 5 parts by mass based on 1 part by mass of the polyester of the component (A). More preferably, it is 0.1 to 3 parts by mass. When the ratio is too small, sufficient effect of the antioxidant is not obtained, and if it is too large, the alignment property is lowered and the coating film is roughened. <(E) Component> The present invention may contain a decane coupling agent for the component (E). The sand chamber coupling agent of the component (E) can effectively improve the adhesion to the phase difference material formed of the polymerizable liquid crystal. Specific examples of the decane coupling agent such as 'trimethylchlorodecane' dimethylvinyl chloride brothel, methyl diphenyl chlorodecane, chloromethyl dimethyl sand or the like; chloro silanes; trimethyl methoxy Alkoxylates such as decane, dimethyldiethoxylate, methyltrimethoxydecane, dimethylvinylethoxysilane, diphenyldimethoxydecane, phenyltriethoxyhydrazine Base decanes; hexamethyldioxane, N,N,-bis(trimethylsilyl)urea-dimethyltrimethyl sand-32- 201041971 alkylamine, trimethyldecyl imidazole, etc. Indoloxanes; vinyl, γ-aminopropyltriethoxydecane, γ-methylpropoxypropyl decane, γ-methylpropoxypropyltriethoxydecane, γ-propyl a decane such as triethoxy decane or γ-(Ν-piperidinyl)propyltriethyl; benzotriazole, benzimidazole, oxazole, imidazole, imidazole, 2-mercaptobenzothiazole, 2 a heterocyclic compound such as mercaptobenzoxazole, uracil, mercapto imidazole or mercaptopyrimidine, and urea or urea compound such as 0-urea or 1,3-dimethylurea, and one or the like may be used. 2 kinds In combination, the affinity of the decane coupling agent to the phase difference material is preferably γ-methacryloxypropyltriethoxy fluorene. The above decane coupling agent can be used, for example, by Shin-Etsu Chemical Co., Ltd. Commercially available compounds such as the Li (share) system are readily available for sale. The amount of the decane coupling agent added is usually 0.5 to 30 parts by mass, preferably 0.8 to 20 parts by weight of the component (A), and the solvent resistance of the coating film is lowered when used in an amount of 20 parts by mass or more. A sufficient decane coupling agent effect will not be obtained at the time of dispensing. <(F)Component> The bismaleimine compound which can contain the bismaleimide (F) component for the component (F) can be effectively further improved, for example, the following formula (4) Expressed as a compound. These amine compounds are not particularly limited to those described above. These may be mono- or trichlorodecane-trimethoxy-oxypropylene oxy oxane 2-mercaptobenzoxazole, thiourea 1,1-dimethyl decane coupled, and preserved ane. (share) system, and these cities 匕 1 〇〇 quality parts. L does not reach 0.5 compound. Increased flatness More than two types of Malayanyan -33- 201041971 are used. [化 28]

In the above formula, Y is an aliphatic group, an organic group selected from a group consisting of a cyclic structure and an aromatic group, or an organic group formed by combining these groups of organic groups. Further, γ may contain a bond such as an ester bond or a urethane bond. Maleic acid imide shirt represented by the above formula (4) 3.3-diphenylmethane bismaleimide, N,N'-(3,3-dimethyl)-4,4-diphenyl - methane bismaleimide, hydrazine, Ν' methane bismaleimide, 3,3-diphenyl maple bismales phenylene fluorene imidazol, hydrazine, Ν'-ρ - Benzophenone double horse? Ν,Ν'-diphenylethane, bismaleimide, hydrazine, Ν'-diphenylimine, hydrazine, Ν'-(methyl bis-ditetrahydrophenyl) bismuth, Ν ,-(3-ethyl)-4,4-diphenylmethane bismaleline 0: 3.3-dimethyl)-4,4-diphenylmethane bismaleimide, diethyl) -4,4-diphenylmethane bismaleimide, hydrazine, Ν')-4,4-diphenylmethane bismaleimide, hydrazine, Ν'-isophorbium imine, hydrazine, Ν'-Triazine bismaleimide, hydrazine, Ν'-diphenyl quinone imine, hydrazine, Ν'-naphthalene bismaleimide, hydrazine, Ν'-m-extension imine, hydrazine , Ν'-5. methoxy-1,3-phenylphenyl bismales selected from the aliphatic group, the ether bond, 醯5, Ν, Ν '-ethyl-5, 5- Bis-4,4·diphenylamine, 4,4-dimethyleneimine, ether, bismaleimide, anthracene, anthracene, Ν'-( Ν,Ν,- ( 3,3-- (3,3-Dichloro-indenyl-bi-maleylpropane-bis-p-phenyl-p-male (amine, 2,2-bis-34- 201041971 double I 2 2 , alkane-propyl phenyl) lysyloxyaniline马 马 马 马 马 马 马 马 马 马 马 马 马 马 马 马 马 马 马 马 马 马Aniline, oxime, horse A, A, 3, B, C, bis, C, bis, bis, s, s, s, s, s, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y, y

Q,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ( 4 4 -c C-4 4-4-ylbisbis bis oxymethane, ethyl ethane ethyl phenyl phenyl) &gt; phenyl group &gt; oxy oxy phenoxy amine imidate醯醯亚来来醯马马来4 4马双双基-4 chloro), benzyl benzene phenyl pentene} } } yloxy oxyphenylbenzene phenylamine amide amide Ethyl propyl double C fluorine, 3 1-double six 1, 1 - * 1 Maya 4 double 4-醯-(, 2--(to 4- 4-, 4-methyl C-fluorobromo 4-1 hexa 3,5-Dimethyl-4-(4-maleimidophenoxy)phenyl)propane, ◎ 1,1,1,3,3,3-hexafluoro-2,2-dual ( 3,5-dibromo-4-(4-maleimidophenoxy)phenyl)propyl, N,N'-extended ethyl dimaleimide, n,N,-six-extension Kima lysine, N, N'-dodemethyl methyl bismaleimide, n, N, -m-xylene bismaleimide, N, N'-p-xylene horse醯iimine, \1^'-1,3-bis-extended methylcyclohexane, bismaleimide ;^,;^,-2,4-extended benzyl bismaleimide, hydrazine, Ν'-2,6-extension benzyl bismaleimide, etc., but is not particularly limited to the above. These may be used alone or in combination of two or more. Among these bismaleimides, 2,2_bis(4-(4-maleimidophenoxy)phenyl)propane is preferred. Ν,Ν'-4,4-diphenylmethane Bismale-35- 201041971 Amine, ;^,:^'-(3,3-diethyl-5,5-dimethyl)-4 An aromatic bismaleimide such as 4-diphenyl-methane bismaleimide. Further, in such aromatic bismaleimine, it is preferred to obtain a higher degree of planarization. The content of the (b) component of the bismaleimide compound is preferably 0.5 to 50 parts by mass, more preferably 0.5 to 50 parts by mass, based on the mass of the polyester of the component (a). It is preferably from 2 to 20 parts by mass, particularly preferably from 2 to 20 parts by mass. When the ratio is too small, it is difficult to obtain an effect of flattening the cured film obtained by forming the polyester composition for thermosetting film, and if it is too large, the hardening is lowered. The light transmittance of the film and the roughening of the coating film. &lt;Solvent&gt; The heat hardening of the present invention The polyester composition for formation is mostly dissolved in a solvent and used in a solution state. The solvent used at this time is to dissolve the components (A) to (C), and if necessary, the components (D) to (F) and/or The other additive described later may be a solvent having such a solubility energy, and the type and structure thereof are not particularly limited. Such a solvent is, for example, a solvent for polymerizing (A) component and the following solvent. For example, methyl cellosolve acetate, ethyl cellosolve acetate, methyl cellosolve, ethyl cellosolve, butyl cellosolve, propylene glycol monomethyl ether, propylene glycol propyl ether, ethyl lactate, Butyl lactate, cyclohexanol, ethyl acetate, butyl acetate, ethyl lactate, butyl lactate, and the like. These solvents may be used alone or in combination of two or more. -36-201041971 &lt;Other Additives&gt; Without further impairing the effects of the present invention, the polyester composition for forming a thermosetting film of the present invention may contain a surfacing agent, a pigment, a dye, etc., such as a surfactant and a liquid flow regulator. And storage stabilizers, antifoaming agents, dissolution promoters such as polyvalent phenols and polycarboxylic acids. &lt;Polyester composition for thermosetting film formation&gt; 0 The polyester composition for forming a thermosetting film of the present invention is a polyester containing (A) component, a crosslinking agent of (B) component, and (C) component a diester (or a polyvalent ester, and an antioxidant (phenol compound) according to the desired component (D), a decane coupling agent of the component (E), and a bismaleimide compound of the component (F) Further, one or more of the other additives are contained. Generally, most of these are dissolved in a solvent and used as a solution. The polyester composition for forming a thermosetting film of the present invention is preferably as follows [1]: relative 100 parts by mass of the component (A), the polyester composition for forming a thermosetting film containing 3 to 50 parts by mass of the component (B) and 1 to 1 part by mass of the component (C). [2] : Relative to (A) 1 part by mass of the polyester composition containing 3 to 50 parts by mass of the component (b), 1 to 00 parts by mass of the component (C), and a thermosetting film for forming a solvent. [3] : Relative to the component (A) 100 parts by mass of (b) component 3 to 50 parts by mass, (C) component i to 10 parts by mass, (d) component 0.01 to 5 parts by mass, (E) 5% to 30 parts by mass, from -37 to 201041971 parts, from 0.5 to 50 parts by mass of the polyester composition for forming a thermosetting film. [4]: (B) is contained in an amount of 1 part by mass relative to the component (A). 3 to 50 parts by mass of the component, 3 to 50 parts by mass of the component (C), 1 to 5 parts by mass of the component (D), 0.5 to 30 parts by mass of the component (E), and 〇 5 to 50 parts by mass of the component (F) The polyester composition for forming a thermosetting film of a solvent and a solvent. The addition ratio, the preparation method, and the like when the polyester composition for forming a thermosetting film of the present invention is used in the form of a solution will be described in detail below. The thermosetting film of the present invention is formed. The ratio of the solid content in the polyester composition is not particularly limited, and the component can be uniformly dissolved in the solvent, and may be from 1 to 80% by mass, preferably from 5 to 60% by mass, more preferably from 10 to 50% by mass. The solid content at this time is a method of removing the solvent from all the components of the polyester composition for forming a thermosetting film. The method for preparing the polyester composition for forming a thermosetting film of the present invention is not particularly limited, and a preparation method thereof is as follows. After dissolving the component (A) in a solvent, mixing the solution, the component (B) at a constant ratio, C) a component, and (D) component, (E) component, (F) component to obtain a homogeneous solution, or in a suitable stage of the preparation method, a method of mixing other additives as necessary. When the polyester composition for forming a thermosetting film is used, the polyester solution obtained by polymerization in a solvent can be directly used. In this case, the component (B), the component (C), the component (D), and the (E) may be used as described above. After the component (F) component is added to the solution of the component (A) to form a homogeneous solution, a solvent is additionally added to adjust the concentration. The solvent used in the process of producing the polyester-38-201041971' can be combined with the thermosetting film. When the polyester composition is formed, the adjustments are the same or different. Further, it is preferred to use a solution of a polyester composition for film formation after filtering using a filter having a pore size of 2·2 μm or the like. &lt;Coating film, cured film, and liquid crystal alignment layer&gt; The polyester composition for forming a thermosetting film of the present invention is subjected to 0-coating, roll coating, slit coating, slit coating, and printing to be equal to a substrate (for example, a crucible/cerium oxide-coated substrate, a coated metal such as a substrate quartz substrate such as aluminum, molybdenum or chromium, or a tantalum substrate, or a film (for example, a resin film such as triethyl, polyester film or acrylic film), or the like, or an oven or the like. Prepare to dry (pre-bake), and form a coating film to form a film. The heat treatment conditions may be, for example, from a temperature of from 70 ° C to a temperature of from 0.3 to 60 minutes by a suitable heating temperature. The heating temperature and the heating time are preferably from 80 ° C to 140 ° C for a period of time. Further, the polyester composition for forming a thermosetting film is formed to have a thickness of, for example, 0.1 to 30 μm, and can be appropriately selected in consideration of the substrate step difference property to be used. Post-baking is generally carried out by using a heating temperature of 140 ° C and a heat treatment on a hot plate for 5 to 30 minutes for 30 to 90 minutes. Thermal hardening obtained by dissolving the whole concentration. Rotating coating, flowing cloth, inkjet coating, 1 plate, tantalum nitride, glass substrate, and cellulose film are used, and heat is used. Thereafter, the heating is 1 60 ° C, time and heating time.膜·5 to 10° film thickness, optical properties and electricity to a temperature of 250 ° C or in the oven 39 201041971 After curing the polyester composition for forming a thermosetting film of the present invention under the above conditions, The substrate step can be sufficiently flattened to form a cured film having high transparency. By honing the cured film formed as described above, it is possible to impart a function to a liquid crystal alignment layer even if a layer having a liquid crystal compound is aligned. The conditions of the honing treatment are generally those using a rotation speed of 300 to 1 rpm, a conveying speed of 3 to 200 mm/sec, and a pushing amount of 0.1 to 1 mm. Thereafter, the residue generated by the honing is removed by ultrasonic cleaning using pure water or the like. After the phase difference material is applied to the liquid crystal alignment layer formed as described above, the phase difference material is photocured into a liquid crystal state to form a layer having optical anisotropy. The phase difference material used is, for example, a liquid crystal monomer having a polymerizable group, a composition containing the same, and the like. Further, after the two substrates having the liquid crystal alignment layer formed by the above-described liquid crystal alignment layer are bonded to each other via a liquid crystal alignment layer, liquid crystal is injected between the substrates to obtain a liquid crystal display element in which the liquid crystal is aligned. Further, the substrate on which the liquid crystal alignment layer is formed is formed into a film shape, and can be used as a material for an optically anisotropic film. As described above, the polyester composition for forming a thermosetting film of the present invention is suitable for use in various optically anisotropic films and liquid crystal display elements. Moreover, since the polyester composition for forming a thermosetting film of the present invention has at least a required level of planarization, it is suitable for forming a protective film of various types of displays such as a thin film transistor (TFT) type liquid crystal display element and an organic EL, and flat-40- 201041971 The material of the cured film such as a film or an insulating film is particularly suitable for a protective film of a color filter, an interlayer insulating film of a TFT liquid crystal element, or an insulating film of an organic EL element. [Embodiment] The present invention will now be described in more detail by way of examples, but the invention is not limited thereto. [Codes used in the examples] The following are the meanings of the symbols used in the examples. &lt;Polyester and diester compound raw material&gt; HBPDA: 3,3,-4,4,-dicyclohexyltetradecanoic acid liver BPDA: biphenyltetracarboxylic dianhydride 〇BPADA : 4,4'- ( 4 , 4'-isopropylidenediphenoxy)biphthalic anhydride hydrazine: hexahydrophthalic anhydride CHDO: 1,4-cyclohexanediol (: 111'0:1,3,5-cyclohexanetriol Ρ Ε : pentaerythritol hydrazine: hydrogenated bisphenol A 1 [intrusion: 1,2,5,6-tetrahydrophthalic anhydride &lt;polyester and diester compound polymerization catalyst&gt; -41 - 201041971 BTEAC : benzyltriethylammonium Chloride &lt;polyimine precursor raw material&gt; CBDA: cyclohexanetetracarboxylic dianhydride pDA: p-phenylenediamine &lt;acrylic-based copolymer raw material&gt; MAA: methacrylic acid MMA: methyl Methacrylate HEM A : 2-hydroxyethyl methacrylate CHMI: N-cyclohexylmaleimide AIBN : azobisisobutyronitrile &lt;epoxy compound&gt; CEL: Tachel Chemical Industry ( Co., Ltd. 歇洛吉 P-2〇21 (product name) (Compound name: 3,4-epoxycyclohexenylmethyl-3', 4'-epoxycyclohexene carboxylate) &lt;Prevention Oxidizer &gt; TBHBM: 2,4,6-tris(3,5,-di-t-butyl-4,-hydroxyl group) to MBP: 4,4'- Bis(2,6-di-t-butylphenol) &lt;decane coupling agent&gt; MPS: γ-methacryloxypropyltrimethoxydecane-42- 201041971 &lt;Bismaleimide compound &gt; 8 PCT 11:1^",-(3,3-diethyl-5,5-dimethyl)-4,4-diphenyl-methane bismaleimide &lt;solvent&gt; PGMEA : propylene glycol monomethyl ether acetate 0 PGME : propylene glycol monomethyl ether NMP : N-methylpyrrolidone The number average molecular weight and weight of the polyester, polyimide precursor and acrylic copolymer obtained in the following synthesis examples The average molecular weight was obtained by using a GPC apparatus (Shodex (registered trademark) column KF803 L and KF804L) manufactured by K.K., and the dissolution solvent tetrahydrofuran was flown in the column at a flow rate of 1 ml/min (column temperature 40 ° C). The conditions for the elution were measured. The following number average molecular weight (hereinafter referred to as Μη) and weight average molecular weight (hereinafter referred to as Mw) are expressed in terms of polystyrene &. <Synthesis Example 1> HBPDA 18.0 was made at 125 °C. g, BPDA 4.54g, HBPA 15.9g, THPA 2.01g, BTEAC 0.19 reacted in PGMEA 95.1g for 19 hours to obtain polyester solution (solid content concentration) 30.0% by mass) (PI). The obtained polyester had a Μη of 1,310' Mw of 3,270. &lt;Synthesis Example 2&gt; -43-201041971 12.0 g of HBPDA, 10.3 g of HBPA, 0.95 g of THPA, and 0_22 g of BTEAC were reacted in PGMEA 54.58 g at 125 ° C for 19 hours to obtain a polyester solution (solid content concentration: 30.0% by mass) ) ( P2 ). The obtained polyester had a Μη of 1,980 0 and a Mw of 3,500. &lt;Synthesis Example 3&gt; HBPOS 18.0 g, BPADA 7.37 g, HBPA 17.0 g, THPA 2.15 g, and BTEAC 0.10 g were reacted in PGMEA 104.2 g at 125 ° C for 19 hours to obtain a polyester solution (solid content concentration: 30.0 mass) % ) (P3 ). The obtained polyester had a Μη of 1,440 and a Mw of 3,080. &lt;Synthesis Example 4&gt; HBPA 16.82 g (0.070 mol), THPA 20.85 g (0.137 mol), and BTEAC 0.096 g were reacted in PGMEA 88.13 g at 130 ° C for 16 hours to obtain a diester solution (solid content concentration: 30.0 mass) %) (A1 &lt;Synthesis Example 5 &gt; 130. Next, CHDO 8. 1 3g (0.070 mol ) 'THPA 20.8 5 g (0.1 37 mol) and BTEAC 0.096 g were reacted in PGMEA 67.86 g for 16 hours to obtain a diester. Solution (solid content concentration: 30.0% by mass) (A2 &lt; Synthesis Example 6 &gt; -44 - 201041971 130. (: Lower HBPA 16.82 g (0.070 mol), ΗΡΑ 21.13 g (O.137 mol), BTEAC 0.096 g to PGMEA The reaction was carried out in 88.77 g for 16 hours to obtain a diester solution (solid content concentration: 3 0.0% by mass) (A 3 ) &lt; Synthesis Example CHTO 5.5 〇g (〇.〇42 mol) and THPA 17.08 g (0.112) at 130 °C M〇l), BTEAC 0.057g was reacted in PGMEA 52.83 g for 16 hours to obtain a diester solution (solid content concentration: 3 〇·0 mass%) (A4 &lt; Synthesis Example 8 &gt; 130. Under PE 5.00 g ( 〇.〇37mol), ΤΗΡΑ20.10g (0.132mol), BTEAC 0.050g in PGMEA 5 8.69g for 16 hours to obtain diester solution (solid Part concentration: 30.0% by mass) (A5) ❹ &lt;Synthesis Example 9&gt; 17.7 g of CBDA and 10.2 g of pDA were reacted in NMP 66.4 g at 23 ° C for 24 hours to obtain a polyimine precursor solution (solid concentration) : 30.0% by mass) (P4). The obtained polyamidiamine precursor has a Μη of 5,800 'Mw of 1,2,500. &lt;Synthesis Example 10&gt; -45- 201041971

The monomer components used were MAA l〇.9g, CHMI 35.3g, HEMA 25.5g, MMA 28.3g, and the radical polymerization initiator used was AIBN 5g 'The temperature was 60 ° C to 100 ° C to make this equal to the solvent. The polymerization reaction was carried out in PGMEA 15 0 g to obtain an acrylic-based copolymer solution (solid content concentration: 40.0% by mass) (P 5 ). The solution of the obtained acrylic-based copolymer had a Μη of 3,800 and a Mw of 6,700. &lt;Example 1 to Example 9 and Comparative Example 1 to Comparative Example 3 &gt; Compositions of Examples 1 to 9 and Comparative 1 to Comparative Example 3 were prepared according to the composition shown in Table 1 The flattening property, solvent resistance, alignment property, adhesion, transparency, and heat resistance (light transmittance) of the cured film obtained from the composition. -46- 201041971

(Α戚份* (B part (c) ingredient (D) ingredient (E) ingredient (F) ingredient solvent solution (g) (g) (g) (g) (g) (g) (g) implementation Example 1 P1 CEL A1 TBHBM MPS PGME 14 1.5 6. 0 0. 036 0. 48 4. 0 Example 2 P2 CEL A1 TBHBM MPS PGME 14 1· 5 6. 0 0. 036 0. 48 4. 0 Example 3 P3 CEL A1 TBHBM MPS PGME 14 1· 5 6. 0 0. 036 0. 48 4. 0 Example 4 P2 CEL A1 TBHBM MPS PGME 10 1.5 10 0. 036 0. 48 4. 0 Example 5 P2 CEL A1 MBP MPS PGME 14 1. 5 6. 0 0. 036 0. 48 4. 0 Example 6 P2 CEL A2 TBHBM MPS PGME 16 1.5 4. 0 0. 036 0. 48 4. 0 Example 7 P3 CEL A3 TBHBM MPS BMI1 PGME 14 1. 5 6. 0 0. 036 0. 48 0. 6 5. 8 Example 8 P1 CEL A4 TBHBM MPS PGME 14 1.5 6. 0 0. 036 0. 48 4. 0 Example 9 P1 CEL A5 TBHBM MPS PGME 14 1· 5 6. 0 0. 036 0. 48 4. 0 Comparative Example 1 P2 PGMEA 20 — 2. 22 Comparative Example 2 P4 CEL NMP 20 1.2 _ 2. 97 Comparative Example 3 P5 CEL PGMEA 20 1. 2 2. 80 ※P1~P3: Polyester solution P4: Polyimine precursor P5: Acrylic copolymer 〇 [Evaluation of flatness] Using a spin coater Each of the compositions of Examples 1 to 9 and Comparative Examples 1 to 3 was applied to a step substrate (made of glass) having a height of μμπι, a line width ΙΟΟμχη, and a space between the lines of 40 μπα, and then placed at 100 °. The hot plate of C was pre-baked for 120 seconds to form a coating film having a film thickness of 2.5 μm. The film thickness was measured by F20 manufactured by FILMETRICS Co., Ltd. The film was heated in a hot air circulating oven at a temperature of 23 ° C for 30 minutes. After the baking, a cured film having a film thickness of 2.0 μm was formed. -47- 201041971 Measure the coating film on the stepped substrate line and refer to Figure 1 in the space, and then use the flattening ratio (DOP): Thickness difference (μηΟ / height of the step substrate (Ι.Ομπι) 〇 Confirmed as the condition of the planarizing film In order to at least have a chemical conversion rate. [Evaluation of Solvent Resistance] Each of the compositions of Example 1 to Example 9 Example 3 was applied onto a ruthenium circuit board using a spin coater, and then pre-baked for 120 seconds to form a film thickness. The F20 was measured by FILMETRICS Co., Ltd. at 2.8 μm, and the film was subjected to a curing film of 2.5 μm after 30 minutes in a temperature oven. The cured film was immersed in PGMEA or dried at a temperature of 1 ° C for 60 seconds. The film thickness was measured, or the film having no change in film thickness after NMP was regarded as 〇, and the object was regarded as X. [Evaluation of alignment property] Each of the compositions of Example 1 to Example 9 Example 3 was applied to I using a spin coater. The τ Ο substrate was pre-baked for 120 seconds to form F20 measured by FILMETRICS Co., Ltd. having a film thickness of 2.8 μm. The film thickness difference of the coating film at temperature (10〇x [l-·(film of film]}] A flatness ratio of 60% or more was obtained, and Comparative Example 1 was compared to a hot plate coating film at 100 °C. The film thickness was baked by hot air circulation at 230 ° C, and after forming a film thickness for 60 seconds, each of the films was immersed in PGMEA after immersion reduction and Comparative Example 1 was compared to a hot plate coated at 100 ° C. The film thickness was 230 ° C using a hot air cycle -48 - 201041971. The film was post-baked for 30 minutes in an oven to form a cured film. The rotation speed was 400 rpm, the conveying speed was 30 mm/sec, and the extrusion amount was 0.4 mm. The cured film was subjected to honing treatment, and the substrate after the honing treatment was washed with pure water for 5 minutes. The phase difference material formed of the liquid crystal monomer was applied onto the substrate by a spin coater, and then placed on the substrate (8). The hot plate was pre-baked for 60 seconds to form a coating film having a film thickness of 1.4 μm. The substrate was exposed to light at 1, 〇〇〇mJ under nitrogen, and the obtained substrate was held by biasing the 0-plate, and the alignment was visually confirmed. The object which has a significant change in light transmittance when tilted at 45 degrees and when it is not tilted is regarded as 〇, and the thing which is not changed is regarded as X. [Evaluation of adhesion] Examples 1 to 9 and Comparative Example 1 were applied using a spin coater Each of the compositions of Comparative Example 3 was coated on a quartz substrate and placed at 10 〇 ° C. The hot plate was pre-baked for 120 seconds, and then baked in a hot air circulating oven Q at a temperature of 23 ° C for 30 seconds to form a cured film. The rotation speed was 400 rpm, and the conveying speed was 30 mm/sec. The hardened film was honed at 0.4 mm, and the honed substrate was washed with pure water for 5 minutes. A phase difference material formed of a liquid crystal monomer was applied onto the substrate using a spin coater, and then placed. The hot plate at 80 ° C was pre-baked for 60 seconds to form a coating film having a film thickness of 1. 4 μm. The substrate was exposed to 1, 〇〇〇mJ under nitrogen. An adhesive tape peeling test (using a tape: Cello-tap (registered trademark)) was carried out by cutting 25 1 mm x 1 mm grids on the obtained coating film. The cut 25-49-201041971 lattice completely unpeeled is regarded as 〇, even if one peeled object is regarded as X [evaluation of transparency (light transmittance)] Example 1 to implementation using a spin coater Each of the compositions of Example 9 and Comparative Examples 1 to 3 was applied onto a quartz substrate, and placed on a hot plate at 1 ° C for 12 sec pre-bake to form a coating film having a film thickness of 2.8 μm. The film thickness was measured using F20 manufactured by FILMETRICS. The film was post-baked for 30 minutes in a hot air circulating oven at a temperature of 23 ° C to form a cured film. The light transmittance at a wavelength of 400 nm of the cured film was measured using an ultraviolet visible spectrophotometer (SHIMADSU UV-25 50 model manufactured by Shimadzu Corporation). [Evaluation of heat resistance (light transmittance)] The film was heated in a hot air circulating oven at a temperature of 230 ° C for 3 hours. The cured film was evaluated for transparency, and then an ultraviolet visible spectrophotometer (SHIMADSU UV-made by Shimadzu Corporation) was used. 2550 model), the transmittance at a wavelength of 400 nm was measured. [Evaluation Results] The above evaluation results are shown in Table 2 below. -50- 201041971 [Table 2] Flattening ratio (%) Solvent resistance alignment adhesion transparency (%) Heat resistance (%) PGMEA NMP Example 1 61 〇〇〇〇98 93 Example 2 61 〇〇 〇〇99 97 Example 3 63 〇〇〇〇97 92 Example 4 64 〇〇〇〇99 97 Example 5 61 〇〇〇〇99 94 Example 6 60 〇〇〇〇99 96 Example 7 64 〇〇 〇〇98 95 Example 8 63 〇〇〇〇99 97 Example 9 60 〇〇〇〇97 95 Comparative Example 1 - XX — — — A Comparative Example 2 20 〇〇〇X 85 84 Comparative Example 3 65 〇〇XX 96 95

Each of Examples 1 to 9 has a high flattening rate and is resistant to PGMEA 'NMP. They all have good alignment properties, and high light transmittance (transparency) can be achieved after high-temperature Q baking and after high-temperature baking, and heat resistance is provided. Further, any of the examples has good adhesion to the phase difference material. However, Comparative Example 1 did not form a cured film. Further, in Comparative Example 2, although the solvent resistance, heat resistance, and alignment property were good, the problem of transparency remained, and the flattening ratio was extremely low, and the adhesion was inferior. In Comparative Example 3, although it had a good flatness, solvent resistance, and transparency, the alignment property and the adhesion were inferior. As described above, when the polyester composition for forming a thermosetting film of the present invention forms a cured film at -51 - 201041971, a glycol solvent such as propylene glycol monomethyl ether acetate can be used, and the obtained cured film has excellent properties. Any property of light transmittance, solvent resistance, heat resistance, flatness, adhesion, and alignment. [Industrial Applicability] The polyester composition for forming a thermosetting film of the present invention is very suitable for use in a liquid crystal alignment layer of an optically anisotropic film and a liquid crystal display, and is also suitable for forming a thin film transistor (TFT) type liquid crystal. A material for a cured film such as a protective film, a flattening film or an insulating film of various displays such as a display element or an organic EL element, in particular, an interlayer insulating film for forming a TFT-type liquid crystal element, a protective film for a color filter, and an insulating of an organic EL element. A material such as a film. [Prior Art Document] [Patent Document 1] Patent Document 1: JP-A-2000- 1 0 3 9 3 Patent Document 2: JP-A-2000-1-17491 Patent Document 3: JP-A-2005-03 793 0. Brief Description of the Drawings Fig. 1 is a schematic view showing a cured film formed when a thermosetting polyester composition is applied to a step substrate. Fig. 2 is a view showing a comparison of a liquid crystal cell (a) for forming a liquid crystal alignment film by a prior art and a liquid crystal cell (b) for forming a planarization film using the polyester composition for forming a thermosetting film of the present invention. -52-

Claims (1)

Ο 201041971 VII. Patent application scope: i A polyester composition for forming a thermosetting film, comprising: (A) a polyester component, (B) a crosslinking agent, and (at least one of the two represented by the formula (1) Ester compound, [chemical 1] hooc-qy〇&gt;-°yq-cooh, r0R (υ (2) (wherein ρ is an alicyclic group, an alicyclic group and a lipid group or a formula (2) The structure indicated, Q is a group formed by an alicyclic group and an aliphatic group; and in the formula (2), R is a stretch 2; as in the thermosetting film of the first aspect of the patent application, wherein the component (C) is a diester compound obtained by reacting a compound 1 molar of the following formula (in) with a dicarboxy Q mole represented by the following formula (iv), [Chemical 2] HO-P-OH qA〇(.ν) 0 (Hi) Π R 〇(2) (wherein p is an alicyclic group of an alicyclic group and a lipid group or a structure represented by the formula (2), and Q is an alicyclic group 3 and an aliphatic group. The groups '' and Q' which are formed may each be, "any hydrogen atom is replaced by an aliphatic group; in the formula (2), characterized by containing a group formed by a group or an alicyclic group). Polyol group 1.7 to 2 group of glycol anhydride The R contained in the alicyclic group or the alicyclic group is an alkyl group-53 - 201041971. The polyester composition for forming a thermosetting film according to the second aspect of the patent application' wherein P is the following formula (1P1) The group represented, [Chem. 3] -r12-p1-(r11-p1^r13- (1P1) (wherein P1 is a cyclic saturated hydrocarbon group, and any hydrogen atom in the P1 group may be independently bonded by an aliphatic group Substituting; R11 is a single bond, a carbonyl group, an ether group, an acid extension group, a saturated hydrocarbon group having 1 to 8 carbon atoms or a saturated hydrocarbon group having 1 to 8 carbon atoms substituted by a fluorine atom, and R12 and R13 are each independently a single bond or The alkyl group having a carbon number of 1 to 5, h is 0 or 1). 4. The polyester composition for forming a thermosetting film according to claim 2 or 3, wherein Q is a formula (1Q1) The base of the formula, [Chemical 4] ~Q1 -X-(1Q1) (wherein, Q1 is a cycloalkyl group having 4 to 8 carbon atoms or a cycloalkenyl group, and any hydrogen atom in the Q1 group may be fat. The group of the (C) component contains the following polyester composition, which is a single bond or a C 1 to 3 alkyl group. Type (Ι-a) At least one polyvalent ester compound represented, -54- 201041971 [Chemical 5] HOOC*&quot;Qa 丫.,Pa {〇Vg^Qa,COOH)-Ra^(Ra)j· (1a) (2-a) (In the formula, Pa is an alicyclic group or an aliphatic alkyl group interrupted by an oxygen atom or a nitrogen atom, or a structure represented by the formula (2-a), Qa is an alicyclic group, and 1 is 1 to 5 An integer; in the formula (2-0, Ra is an alkylene group). The polyester composition for forming a thermosetting film according to any one of claims 1 to 5, wherein the component (A) is a polyester having a structural unit represented by the following formula (3), [Chemical 6] Q (wherein, A is a tetravalent organic group in which an alicyclic group or an aliphatic group is bonded to four bonding bonds, and B is an alicyclic group or a divalent organic group in which an aliphatic group is bonded to two bonding bonds; ). 7. The polyester composition for forming a thermosetting film according to any one of claims 1 to 6, wherein the component (A) is a tetracarboxylic dianhydride represented by the following formula (i) and a formula (聚酯) The polyester obtained by reacting the diol compound represented, -55- 201041971 (wherein, A is a tetravalent organic group in which an alicyclic group or an aliphatic group is bonded to four bonding bonds, and B is an alicyclic group or a divalent organic group in which an aliphatic group is bonded to two bonding bonds) . 8. The polyester composition for forming a thermosetting film according to claim 6 or 7, wherein in the above formula (3), A is represented by the following formula (A-1) to formula (A-8). At least one group selected from the group, B is at least one selected from the group represented by the following formulas (B-1) to (B-5), [Chem. 8] XX w (A-1 ) (A-2 ) (A-3) (A-4) (A-7) (A-5) (A-6) (A-8) [Chem. 9] (B-1) (B-2) (B-3) (B-4) (B-5) 9. The polyester composition for forming a thermosetting film according to any one of claims 1 to 8 'The weight average molecular weight of the polyester of the component (A) is 1,000 to 30,000 in terms of polystyrene. 1 热. Thermal hardening according to any one of claims 1 to 9 - 56- 201041971 Film formation A polyester composition for forming a thermosetting film for use in any one of the first to tenth aspects of the invention, wherein the polyester composition is a polyester composition for forming a thermosetting film. Further, the decane coupling agent for the component (E) is used. The polyester composition for forming a thermosetting film according to any one of claims 1 to 1 wherein the (F) component is additionally used. The polyester composition for forming a thermosetting film according to any one of the items 1 to 12, wherein the (A) component is contained in an amount of 100 parts by mass (B) The component is 3 to 50 parts by mass, and the component (C) is 1 to 100 parts by mass. 14. The polyester composition for forming a thermosetting film according to claim 10 of the patent application scope It is contained in an amount of 0.01 to 5 parts by mass based on 100 parts by mass of the component (A). Q 1 5. The polyester composition for forming a thermosetting film according to item 11 of the patent application, wherein (A) The component (10) is contained in an amount of from 0.5 to 30 parts by mass of the component (E). The polyester composition for forming a thermosetting film according to claim 12, wherein the component (A) is contained in an amount of 100 parts by mass. (F) Component: 0.5 to 50 parts by mass. 17. A cured film obtained by using the polyester composition for forming a thermosetting film according to any one of claims 1 to 16. 1 8 A liquid crystal alignment layer which is obtained by using a polyester composition for forming a thermosetting film as disclosed in any one of claims 1 to 7 to 4, 2010 to 1971.