Processing method and electronic device

Abstract

To provide a new surface treatment method for a display panel provided to an electronic device.SOLUTION: This treatment method for a display panel provided to an electronic device comprises: irradiating, with plasma, at least a partial area of the surface of the display panel; and applying a surface treatment agent to at least the area irradiated with the plasma to form a first surface treated layer. The surface treatment agent contains a fluorine-containing silane compound.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present disclosure relates to a method for treating a display panel provided in an electronic device, and the electronic device. [Background technology]

[0002] Various coatings are applied to substrates in order to impart different properties to the substrate.

[0003] US Pat. Nos. 5,993,333 and 5,363,633 describe methods for removing a coating from a coated substrate using plasma in preparation of a substrate requiring an at least partially coating-free surface.

[0004] Patent document 3 describes that when a substrate to be treated has a film, which includes a portion to be left and a portion to be peeled off, attached to the surface to be treated via an adhesive, the process gas is converted into plasma and brought into contact with the non-treated surface when the film is subjected to surface treatment before attachment. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2011-82184 A [Patent Document 2] Special Publication No. 2007-527093 [Patent Document 3] JP 2019-73399 A Summary of the Invention [Problem to be solved by the invention]

[0006] An object of the present disclosure is to provide a new surface treatment method for a display panel provided in an electronic device. [Means for solving the problem]

[0007] The present disclosure provides the following aspects. [1] A method for treating a display panel of an electronic device, comprising the steps of: Irradiating at least a partial area of ​​a surface of the display panel with plasma; applying a surface treatment agent to at least the area irradiated with the plasma to form a first surface treatment layer; The surface treatment method, wherein the surface treatment agent contains a fluorine-containing silane compound. [2] The processing method according to [1], wherein the plasma is a low-temperature plasma. [3] The treatment method according to [1] or [2], wherein, before the plasma is irradiated, a water contact angle in at least a part of the region to be irradiated with the plasma is less than 100°. [4] The plasma irradiation had an irradiation intensity of 1 W / cm 2 More than 100W / cm 2 The processing method according to any one of [1] to [3] below, which is carried out under conditions of an irradiation distance of 1 mm or more and 300 mm or less. [5] The method according to any one of [1] to [4], wherein the plasma irradiation is carried out under conditions of a plasma irradiation speed of 1 mm / sec or more and 50 mm / sec or less. [6] The treatment method according to any one of [1] to [5], wherein the surface treatment agent is applied within 60 minutes after the plasma irradiation is finished. [7] The treatment method according to any one of [1] to [6], wherein the plasma irradiation is carried out at a plasma temperature of 60° C. or less. [8] The method according to any one of [1] to [7], wherein after forming the first surface treatment layer, the water contact angle of the surface of the display panel in the area having the first surface treatment layer is 100° or more. [9] The fluorine-containing silane compound is represented by the following formula (1) or (2): [ka] [In formula: R F1 Each occurrence independently represents Rf 1 -R F -O q - or a fluoroalkyl group; R F2 is -Rf 2 p -R F -O q - or a fluoroalkylene group; Rf 1 C, which may be substituted by one or more fluorine atoms, independently at each occurrence; 1-16 is an alkyl group; Rf 2 C may be substituted with one or more fluorine atoms. 1-6 is an alkylene group; R F is independently at each occurrence a divalent fluoropolyether group; p is 0 or 1; q, independently at each occurrence, is 0 or 1; R Si is independently in each occurrence a monovalent group containing a silicon atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent organic group is bonded; At least one R Si is a monovalent group containing a Si atom having a hydroxyl group or a hydrolyzable group bonded thereto; X A each independently represents a single bond or a divalent to decavalent organic group; α is an integer from 1 to 9; β is an integer from 1 to 9; Each γ is independently an integer from 1 to 9. The treatment method according to any one of [1] to [8], comprising at least one fluorine-containing silane compound represented by the following formula:

[10] An electronic device comprising a display panel, the display panel includes a glass substrate, a first layer covering a portion of a surface of the glass substrate, and a second layer covering another portion of the surface of the glass substrate; the first layer is a layer formed from a surface treatment agent containing a fluorine-containing silane compound, The first layer and the second layer have different compositions.

[11] The electronic device according to

[10] , wherein the kinetic friction coefficient of the surface of the first layer is smaller than the kinetic friction coefficient of the surface of the second layer.

[12] The electronic device according to

[10] or

[11] , wherein the maximum value of the dynamic friction coefficient of the surface of the display panel is 1.1 times or more the minimum value of the dynamic friction coefficient of the surface of the display panel.

[13] The electronic device according to any one of

[10] to

[12] , wherein an average water contact angle on the surface of the display panel is 108° or more.

[14] An electronic device comprising a display panel, the display panel includes a glass substrate, a first layer covering a portion of a surface of the glass substrate, and a second layer covering another portion of the surface of the glass substrate; The first layer is formed by irradiating at least a part of a surface of a glass substrate with plasma; applying a surface treatment agent to the area irradiated with the plasma to form a first surface treatment layer; The surface treatment agent for an electronic device comprises a fluorine-containing silane compound. Effect of the Invention

[0008] The present disclosure can provide a new surface treatment method for a display panel provided in an electronic device. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a schematic diagram showing positions on a display panel where the dynamic friction coefficient was measured in the examples. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] (First embodiment: Processing method) A method for treating a display panel of an electronic device, comprising the steps of: Irradiating at least a partial area of ​​a surface of the display panel with plasma; applying a surface treatment agent to at least the area irradiated with the plasma to form a first surface treatment layer; The surface treatment agent includes a fluorine-containing silane compound.

[0011] According to the present disclosure, a new surface treatment method for a display panel provided in an electronic device can be provided. A display panel provided in an electronic device may come into contact with the human body, fibers, chemicals, etc., during use of the electronic device, and thus the surface properties (e.g., water repellency, oil repellency, slipperiness, fingerprint adhesion, antifouling, antireflection, antifogging, etc.) may be deteriorated. In the treatment method of the present disclosure, even a display panel with deteriorated surface properties can be restored by irradiating the surface with plasma and performing surface treatment using a surface treatment agent containing a fluorine-containing silane compound. Although the present disclosure should not be interpreted as being limited to a particular theory, the reason why the surface properties can be restored by the treatment method of the present disclosure is considered to be as follows.

[0012] A coating may be provided on the surface of a display panel provided in an electronic device from the viewpoints of visibility, operability, antifouling, and the like. Such a coating may be partially damaged or removed by use. It is believed that components such as sebum are removed from the portion where the coating is removed and the substrate is exposed by irradiating with plasma, and the damaged coating is also removed. It is also believed that the surface of the display panel is activated by irradiating with plasma. It is also believed that the fluorine-containing silane compound reacts with the substrate surface by further performing a surface treatment on the region irradiated with plasma, and water repellency is imparted to the surface of the display panel. The use of the fluorine-containing silane compound can further impart oil repellency, slipperiness, and the like, and is also expected to have the effect of recovering surface properties such as fingerprint prevention and antireflection.

[0013] The display panel is provided in an electronic device. That is, the treatment method of the present disclosure is used for a display panel incorporated in an electronic device. Since the treatment method of the present disclosure uses plasma, even when applied to a display panel incorporated in an electronic device, it is possible to form a surface treatment layer on the display panel without preventing an excessive rise in temperature and impairing the function of the electronic device.

[0014] The electronic device may be any device equipped with a display panel, such as a portable terminal device such as a smartphone, tablet, notebook PC, or camera; a wearable device such as a smart watch; or a display device such as a television, liquid crystal display, organic EL display, or inorganic EL display.

[0015] The surface of the display panel includes a region having a water contact angle of less than 100° before being irradiated with plasma, which will be described later. That is, it is sufficient that the water contact angle is less than 100° in at least a part of the surface of the display panel, and the water contact angle may be 100° or more in other regions. Such a region may be a region that is relatively frequently subjected to contact or friction when the electronic device is used, and may be, for example, the center of the surface of the display panel. When the display panel is vertically divided into thirds into an upper part, a middle part, and a lower part, and horizontally divided into thirds into a right part, a middle part, and a left part, the center of the display panel may be a portion that corresponds to both the middle part and the middle part.

[0016] The water contact angle in the above region may be, for example, 99° or less, even 95° or less, 80° or less, 70° or less, 60° or less, 50° or less, 40° or less, and may be 0° or more, for example 10° or more, even 15° or more. In the present disclosure, the water contact angle can be measured in accordance with JIS R 3257:1999.

[0017] The display panel may be a display panel, a touch panel, a screen, etc., and typically has a glass substrate; and preferably has a glass substrate and a second layer covering a portion of the surface of the glass substrate.

[0018] The glass constituting the glass substrate is preferably sapphire glass, soda-lime glass, alkali aluminosilicate glass, borosilicate glass, alkali-free glass, crystal glass, or quartz glass, and more preferably chemically strengthened soda-lime glass, chemically strengthened alkali aluminosilicate glass, or chemically bonded borosilicate glass. The thickness of the glass substrate can typically be 0.1 mm or more and 1 mm or less.

[0019] The display panel preferably further comprises a second layer covering a part of the surface of the glass substrate. The second layer may preferably be a surface treatment layer. Such a surface treatment layer may preferably contain a compound used to impart one or more properties selected from water repellency, oil repellency, slipperiness, antifouling property, and antifogging property to the glass substrate, and a reaction product thereof. The compound may be, for example, one or more compounds selected from a fluorine-containing compound, a silicone compound, and an acrylic compound.

[0020] The fluorine-containing compound is preferably a fluoropolyether group-containing compound, more preferably a fluoropolyether group-containing silane compound described later. The fluoropolyether group-containing silane compound that can be contained in the second layer may be the same as or different from the fluoropolyether group-containing silane compound that can be contained in the first surface treatment layer.

[0021] The second layer preferably covers at least a part of the surface of the glass substrate, that is, at least a part of the glass substrate is preferably exposed on the surface.

[0022] The area of ​​the glass substrate surface that can be covered by the second layer may be an area that is relatively infrequently touched or rubbed during use of the electronic device, and may be, for example, one or more selected from the periphery and corners of the surface of the display panel. The periphery of the display panel may be one or more selected from the upper or lower part corresponding to the middle part and the middle part corresponding to the right or left part when the display panel is vertically divided into three equal parts into an upper part, a middle part, and a lower part, and horizontally divided into three equal parts into a right part, a middle part, and a left part. The corner of the display panel may be the upper or lower part corresponding to the right or left part when the display panel is vertically divided into three equal parts into an upper part, a middle part, and a lower part, and horizontally divided into three equal parts into a right part, a middle part, and a left part.

[0023] The glass substrate and the second layer are typically disposed on a surface of a display panel.

[0024] The surface of the glass substrate may have other layers in addition to the second layer. The other layers preferably cover the surface of the glass substrate and may be partially overlapped with the second layer, may be provided on the second layer, or may be provided between the second layer and the glass substrate. Examples of such other layers include a hard coat layer and an anti-reflection layer.

[0025] The display panel may further include other members in addition to the glass substrate. The glass substrate may typically be disposed on the other members, i.e., on the front side of the display panel relative to the other members.

[0026] In this disclosure, "on a component" does not refer to an absolute direction such as vertically upward as determined by the direction of gravity, but rather refers to the direction toward the outside of the inside and outside of a component, with the surface of the component as the boundary. Therefore, "on a component" is a relative direction determined by the orientation of the surface of the component. Furthermore, "on" an element includes not only the position directly above the element, but also the position above the element, i.e., the position above the element through another layer that is in contact with the element, or the position above the element with a gap therebetween.

[0027] The treatment method of the present disclosure includes irradiating at least a partial region of the surface of the display panel with plasma, which can make the surface of the display panel suitable for forming a first surface treatment layer described below.

[0028] In one embodiment, the plasma is preferably a low-temperature plasma. The plasma is preferably applied to a partial area of ​​the surface of the display panel, and in another embodiment, the plasma is preferably applied to the entire area of ​​the surface of the display panel.

[0029] The region to be irradiated with the plasma preferably includes at least a region having a water contact angle of less than 100° before being irradiated with the plasma. That is, the plasma is preferably irradiated to at least the region on the surface of the display panel having a water contact angle of less than 100°. The water contact angle in the region may be, for example, 99° or less, further 95° or less, 80° or less, 70° or less, 60° or less, 50° or less, 40° or less, or 0° or more, for example 10° or more, further 15° or more.

[0030] In one embodiment, when the display panel has a glass substrate and a second layer covering a part of the surface of the glass substrate, the region to be irradiated with the plasma preferably includes at least the surface of the glass substrate not having the second layer. That is, in a display panel having a glass substrate and a second layer covering a part of the surface of the glass substrate, the plasma is preferably irradiated at least to the surface of the glass substrate not having the second layer. In such an embodiment, preferably, the region to be irradiated with the plasma includes at least a part of the surface of the glass substrate and at least a part of the surface of the second layer; it may be the entire surface of the glass substrate and the entire surface of the second layer. By irradiating the glass substrate with the plasma, sebum and the like adhering to the surface of the glass substrate can be removed. In addition, by irradiating the second layer with the plasma, the plasma acts on the second layer, and at least a part of the second layer can be decomposed, for example, the second layer can be removed.

[0031] The plasma may be a vacuum plasma such as a microwave plasma or a high frequency plasma, or an atmospheric pressure plasma, with atmospheric pressure plasma being preferred. The process gas used to generate the plasma may be oxygen, nitrogen, fluorine, hydrogen, argon, air, or the like, with air being preferred.

[0032] The plasma irradiation is preferably at 1 W / cm 2 More than 100W / cm 2 Less than or equal to 3 W / cm 2 More than 70W / cm2 Less than 5 W / cm, more preferably 5 W / cm 2 More than 50W / cm 2 The irradiation intensity may be as follows: The irradiation intensity is preferably 1 W / cm 2 More than 3W / cm 2 More preferably, 5 W / cm 2 or more, preferably 100 W / cm 2 Less than 70W / cm, more preferably 70W / cm 2 Less than 50 W / cm, more preferably 50 W / cm 2 By irradiating the plasma with such irradiation intensity, the surface of the display panel can be made suitable for forming the first layer while maintaining the functionality of the electronic device.

[0033] The plasma irradiation may be performed at an irradiation distance of preferably 1 mm to 300 mm, more preferably 1.5 mm to 200 mm, and even more preferably 2 mm to 100 mm. The irradiation distance may be preferably 1 mm or more, more preferably 1.5 mm or more, and even more preferably 2 mm or more, and preferably 300 mm or less, more preferably 200 mm or less, and even more preferably 100 mm or less. By irradiating the plasma at such an irradiation distance, the surface of the display panel can be made suitable for forming the first layer while maintaining the function of the electronic device. In the present disclosure, the irradiation distance may be the straight-line distance from the plasma emission position to the irradiation target.

[0034] The above-mentioned plasma irradiation is preferably performed while scanning the plasma, and the irradiation speed (scanning speed) of the plasma in this embodiment may be preferably 1 mm / sec or more and 50 mm / sec or less, more preferably 3 mm / sec or more and 20 mm / sec or less, and even more preferably 5 mm / sec or more and 10 mm / sec or less. The above-mentioned irradiation speed (scanning speed) may be preferably 1 mm / sec or more, more preferably 3 mm / sec or more, even more preferably 5 mm / sec or more, and preferably 50 mm / sec or less, more preferably 20 mm / sec or less, and even more preferably 10 mm / sec or less. By irradiating the plasma at such an irradiation speed (scanning speed), the surface of the display panel can be made suitable for forming the first layer while maintaining the function of the electronic device.

[0035] The plasma irradiation may be performed for an irradiation time of preferably 1 second to 60 minutes, more preferably 3 seconds to 30 minutes, and even more preferably 3 seconds to 10 minutes. The irradiation time may be preferably 1 second or more, more preferably 3 seconds or more, and preferably 60 minutes or less, more preferably 30 minutes or less, and even more preferably 10 minutes or less. By irradiating the low-temperature plasma for such an irradiation time, the surface of the display panel can be made suitable for forming the first layer while maintaining the function of the electronic device.

[0036] The plasma irradiation is preferably carried out at a plasma temperature of 60° C. or less, more preferably at a plasma temperature of 50° C. or less, even more preferably at a plasma temperature of 0° C. or more and 48° C. or less, and particularly preferably at a plasma temperature of 10° C. or more and 45° C. or less. The plasma temperature may be the temperature at a position 10 mm away from the plasma nozzle. This makes it possible to make the surface of the display panel suitable for forming the first layer while maintaining the functionality of the electronic device.

[0037] In the area of ​​the surface of the display panel irradiated with plasma, the water contact angle before application of the surface treatment agent described later can be, for example, 50° or less, further 30° or less, and particularly 10° or less, and typically 1° or more, and further 5° or more.

[0038] Next, a surface treatment agent is applied to at least the area irradiated with plasma to form a first surface treatment layer, which can restore surface properties such as water repellency, oil repellency, slipperiness, fingerprint resistance, antifouling, antireflection, and antifogging in the area where the first surface treatment layer is formed.

[0039] The application of the surface treatment agent is preferably carried out within 60 minutes after 0 minutes, more preferably within 30 minutes after 0 minutes, even more preferably within 10 minutes after 0 minutes, and even more preferably within 3 minutes after 0 minutes, after the end of the plasma irradiation. This allows the surface treatment agent to be applied to the display panel surface while maintaining the state after the plasma irradiation.

[0040] The surface treatment agent can be applied to the surface of the display panel so as to cover the surface. The coating method is not particularly limited. For example, a wet coating method and a dry coating method can be used, and the wet coating method is preferably used.

[0041] Examples of wet coating methods include dip coating, spin coating, brush coating, flow coating, spray coating, roll coating, gravure coating and similar methods, with spray coating being preferred.

[0042] The layer formation of the surface treatment agent is preferably carried out so that the surface treatment agent of the present disclosure is present together with a catalyst for hydrolysis and dehydration condensation in the layer. Conveniently, in the case of a wet coating method, the catalyst may be added to the diluted solution of the surface treatment agent of the present disclosure immediately before applying the diluted solution to the substrate surface after diluting the surface treatment agent of the present disclosure with a solvent.

[0043] The catalyst may be any suitable acid or base. Examples of the acid catalyst include acetic acid, formic acid, and trifluoroacetic acid. Examples of the base catalyst include ammonia and organic amines.

[0044] After application of the surface treatment agent, the surface treatment agent may be dried as necessary. Such drying promotes hydrolysis and dehydration condensation of the fluorine-containing silane compound described below, and can remove the solvent and the like.

[0045] The above precursor layer may be dried at a temperature of preferably 0°C or more and 60°C or less, more preferably 5°C or more and 50°C or less, and even more preferably 10°C or more and 30°C or less, for a time period of preferably 1 hour or more and 48 hours or less, more preferably 3 hours or more and 24 hours or less, and even more preferably 6 hours or more and 12 hours or less.

[0046] After forming the first surface treatment layer, the water contact angle of the surface of the display panel in the area where the first surface treatment layer is formed is preferably 100° or more, more preferably 102° or more, even more preferably 105° or more, even more preferably 108° or more, still more preferably 110° or more, and even more preferably 113° or more, and may be, for example, 130° or less, or even 120° or less.

[0047] After forming the first surface treatment layer, the dynamic friction coefficient of the surface of the display panel in the area where the first layer is formed can be preferably 0.3 or less, more preferably 0.01 or more and 0.2 or less, and even more preferably 0.02 or more and 0.1 or less.

[0048] The thickness of the first layer is not particularly limited. The thickness of the first layer is preferably in the range of 1 to 50 nm, 1 to 30 nm, and more preferably 1 to 15 nm, from the viewpoints of optical performance, abrasion resistance, and antifouling properties.

[0049] After forming the first layer, the surface of the display panel may be wiped, etc. This makes it possible to remove excess components that may remain on the surface of the display panel.

[0050] The surface treatment agent includes a fluorine-containing silane compound.

[0051] The fluorine-containing silane compound is a compound containing at least a fluorine-containing group and a silane, and is preferably represented by the following formula (1) or (2): [ka] [In formula: R F1 Each occurrence independently represents Rf 1 -R F -O q - and; R F2 is -Rf 2 p -R F -O q - and; Rf 1 C, which may be substituted by one or more fluorine atoms, independently at each occurrence; 1-16 is an alkyl group; Rf 2 C may be substituted with one or more fluorine atoms. 1-6 is an alkylene group; R F is independently at each occurrence a divalent fluoropolyether group; p is 0 or 1; q, independently at each occurrence, is 0 or 1; R Si is independently in each occurrence a monovalent group containing a silicon atom to which a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent organic group is bonded; At least one R Si is a monovalent group containing a Si atom having a hydroxyl group or a hydrolyzable group bonded thereto; X A each independently represents a single bond or a divalent to decavalent organic group; α is an integer from 1 to 9; β is an integer from 1 to 9; Each γ is independently an integer from 1 to 9. The compound contains at least one fluorine-containing silane compound represented by the formula:

[0052] In the above formula (1), R F1 Each occurrence independently represents Rf 1 -R F -O q - or a fluoroalkyl group. F1 is preferably Rf 1 -R F -O q In another embodiment, R F1 is preferably a fluoroalkyl group. F1 Rf 1 -R F -O q When the formula (1) is -, the compound represented by formula (1) contains a fluoropolyether group and corresponds to a fluoropolyether group-containing silane compound.

[0053] In the above formula (2), R F2 is -Rf 2 p -R F -O q - or a fluoroalkylene group. F2 is preferably Rf 2 p -R F -O q In another embodiment, R F2 is preferably a fluoroalkylene group. F2 Rf 2 p -R F -O q When the formula (2) is -, the compound represented by formula (2) contains a fluoropolyether group and corresponds to a fluoropolyether group-containing silane compound.

[0054] In the above formula, Rf 1 C, which may be substituted by one or more fluorine atoms, independently at each occurrence; 1-16 It is an alkyl group.

[0055] C which may be substituted by one or more fluorine atoms 1-16 "C" in alkyl group 1-16The "alkyl group" may be a straight chain or a branched chain, and is preferably a straight chain or branched chain C 1-6 Alkyl groups, especially C 1-3 is preferably a straight-chain C 1-6 Alkyl groups, especially C 1-3 It is an alkyl group.

[0056] Above Rf 1 is preferably C substituted by one or more fluorine atoms 1-16 is an alkyl group, more preferably CF2H-C 1-15 A perfluoroalkylene group, more preferably C 1-16 It is a perfluoroalkyl group.

[0057] Above C 1-16 The perfluoroalkyl group may be linear or branched, and is preferably a linear or branched C 1-6 Perfluoroalkyl groups, especially C 1-3 A perfluoroalkyl group, more preferably a linear C 1-6 Perfluoroalkyl groups, especially C 1-3 A perfluoroalkyl group, specifically, -CF3, -CF2CF3, or -CF2CF2CF3.

[0058] In the above formula, Rf 2 C may be substituted with one or more fluorine atoms. 1-6 It is an alkylene group.

[0059] C which may be substituted by one or more fluorine atoms 1-6 "C" in the alkylene group 1-6 The "alkylene group" may be a straight chain or a branched chain, and is preferably a straight chain or branched chain C 1-3 It is preferably a linear alkylene group. 1-3 It is an alkylene group.

[0060] Above Rf 2 is preferably C substituted by one or more fluorine atoms1-6 is an alkylene group, more preferably C 1-6 A perfluoroalkylene group, more preferably C 1-3 It is a perfluoroalkylene group.

[0061] Above C 1-6 The perfluoroalkylene group may be linear or branched, and is preferably a linear or branched C 1-3 A perfluoroalkylene group, more preferably a linear C 1-3 A perfluoroalkylene group, specifically, -CF2-, -CF2CF2-, or -CF2CF2CF2-.

[0062] In the above formula, p is 0 or 1. In one embodiment, p is 0. In another embodiment, p is 1.

[0063] In the above formula, q is, independently at each occurrence, 0 or 1. In one embodiment, q is 0. In another embodiment, q is 1.

[0064] In the above formulas (1) and (2), R F is independently at each occurrence a divalent fluoropolyether group.

[0065] R F is preferably -(OC h1 R Fa 2h1 ) h3 -(OC h2 R Fa 2h2-2 ) h4 - [In formula: R Fa is independently at each occurrence a hydrogen atom, a fluorine atom, or a chlorine atom; h1 is an integer from 1 to 6, h2 is an integer from 4 to 8; h3 is an integer equal to or greater than 0, h4 is an integer equal to or greater than 0, However, the number of repeating units of h3 and h4 is 1 or more, preferably 2 or more, and more preferably 5 or more, and the order of the repeating units enclosed in parentheses with h3 and h4 is arbitrary in the formula. It may contain a group represented by:

[0066] In one embodiment, R F R can be linear or branched. F is preferably of the formula: -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3R Fa 6) d -(OC2F4) e -(OCF2) f - [In formula: R Fa is independently at each occurrence a hydrogen atom, a fluorine atom, or a chlorine atom; a, b, c, d, e, and f are each independently an integer of 0 to 200, and the sum of a, b, c, d, e, and f is 1 or more. The order of the repeating units enclosed in parentheses with a, b, c, d, e, or f is arbitrary in the formula. However, all R Fa is a hydrogen atom or a chlorine atom, at least one of a, b, c, e and f is 1 or greater.] It is a group represented by the following formula:

[0067] R Fa is preferably a hydrogen atom or a fluorine atom, more preferably a fluorine atom. However, all R Fa is a hydrogen atom or a chlorine atom, at least one of a, b, c, e and f is 1 or greater.

[0068] Preferably, a, b, c, d, e and f may each independently be an integer of 0 to 100.

[0069] The sum of a, b, c, d, e and f is preferably 5 or more, more preferably 10 or more, and may be, for example, 15 or more or 20 or more. The sum of a, b, c, d, e and f is preferably 200 or less, more preferably 100 or less, and even more preferably 60 or less, and may be, for example, 50 or less or 30 or less.

[0070] These repeating units may be linear or branched, and may contain a ring structure. For example, -(OCF 12 )- may be -(OCF2CF2CF2CF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2CF2CF2)-, -(OCF2CF(CF3)CF2CF2CF2)-, -(OCF2CF2CF(CF3)CF2CF2)-, -(OCF2CF2CF2CF(CF3)CF2)-, -(OCF2CF2CF2CF2CF(CF3)CF2)-, -(OCF2CF2CF2CF2CF(CF3))-, etc. 10 )- may be -(OCF2CF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2CF2)-, -(OCF2CF(CF3)CF2CF2)-, -(OCF2CF2CF(CF3)CF2)-, -(OCF2CF2CF2CF(CF3))-, etc. -(OC4F8)- may be any of -(OCF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2)-, -(OCF2CF(CF3)CF2)-, -(OCF2CF2CF(CF3))-, -(OC(CF3)2CF2)-, -(OCF2C(CF3)2)-, -(OCF(CF3)CF(CF3))-, -(OCF(C2F5)CF2)-, and -(OCF2CF(C2F5))-. -(OC3F6)- (i.e., in the above formula, R Fa is a fluorine atom) may be any of -(OCF2CF2CF2)-, -(OCF(CF3)CF2)-, and -(OCF2CF(CF3))-. -(OC2F4)- may be any of -(OCF2CF2)- and -(OCF(CF3))-.

[0071] In one embodiment, the repeating unit is linear. By making the repeating unit linear, the surface slip property, abrasion resistance, etc. of the surface treatment layer can be improved.

[0072] In one embodiment, the repeating unit is a branched chain. By making the repeating unit a branched chain, the dynamic friction coefficient of the surface treatment layer can be increased.

[0073] In one embodiment, R F may include a ring structure.

[0074] The ring structure may be a three-, four-, five-, or six-membered ring as described below.

[0075] [ka] [In the formula, * indicates the bond position.]

[0076] The ring structure may be preferably a four-, five-, or six-membered ring, more preferably a four-, or six-membered ring.

[0077] The repeating unit having a ring structure may preferably be the following unit.

[0078] [ka] [In the formula, * indicates the bond position.]

[0079] In one embodiment, the repeating unit is linear. By making the repeating unit linear, the surface slip property, abrasion resistance, etc. of the surface treatment layer can be improved.

[0080] In one embodiment, the repeating unit is a branched chain. By making the repeating unit a branched chain, the dynamic friction coefficient of the surface treatment layer can be increased.

[0081] In one embodiment, R F represents, independently in each occurrence, a group represented by any one of the following formulas (f1) to (f6). -(OC3F6) d-(OC2F4) e - (f1) [In the formula, d is an integer of 1 to 200, and e is 0 or 1.]; -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f2) [In the formula, c and d each independently represent an integer of 0 or more and 30 or less, and e and f each independently represent an integer of 1 or more and 200 or less, The sum of c, d, e, and f is 2 or more, The order of occurrence of each repeat unit enclosed in parentheses with the subscript c, d, e, or f is arbitrary in the formula. -(R 6 -R 7 ) g - (f3) [In the formula, R 6 is OCF2 or OC2F4, R 7 are OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of two or three groups independently selected from these groups; g is an integer from 2 to 100; -(R 6 -R 7 ) g -R r -(R 7’ -R 6’ ) g’ - (f4) [In the formula, R 6 is OCF2 or OC2F4, R 7 are OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of two or three groups independently selected from these groups; R 6’ is OCF2 or OC2F4, R 7’are OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 or a combination of two or three groups independently selected from these groups; g is an integer from 2 to 100; g' is an integer from 2 to 100, R r teeth,

[0082] [ka] (In the formula, * indicates the bond position.) ]; -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f5) [In the formula, e is an integer of 1 or more and 200 or less, a, b, c, d, and f are each independently an integer of 0 or more and 200 or less, and the order of the repeating units enclosed in parentheses with a, b, c, d, e, or f is arbitrary in the formula.] -(OC6F 12 ) a -(OC5F 10 ) b -(OC4F8) c -(OC3F6) d -(OC2F4) e -(OCF2) f - (f6) [In the formula, f is an integer of 1 or more and 200 or less, a, b, c, d, and e are each independently an integer of 0 or more and 200 or less, and the order of the repeating units enclosed in parentheses with a, b, c, d, e, or f is arbitrary in the formula.]

[0083] In the above formula (f1), d is preferably an integer of 5 to 200, more preferably 10 to 100, further preferably 15 to 50, for example, an integer of 25 to 35. In the above formula (f1), OC3F6 is preferably (OCF2CF2CF2), (OCF(CF3)CF2) or (OCF2CF(CF3)), more preferably (OCF2CF2CF2). In the above formula (f1), (OC2F4) is preferably (OCF2CF2) or (OCF(CF3)), more preferably (OCF2CF2). In one embodiment, e is 0. In another embodiment, e is 1.

[0084] In the above formula (f2), e and f are each independently an integer of preferably 5 to 200, more preferably 10 to 200. The sum of c, d, e and f is preferably 5 or more, more preferably 10 or more, and may be, for example, 15 or more or 20 or more. In one embodiment, the above formula (f2) is preferably -(OCF2CF2CF2CF2) c -(OCF2CF2CF2) d -(OCF2CF2) e -(OCF2) f In another embodiment, formula (f2) is a group represented by -(OC2F4) e -(OCF2) f - may be a group represented by the formula:

[0085] In the above formula (f3), R 6 is preferably OC2F4. In the above (f3), R 7is preferably a group selected from OC2F4, OC3F6 and OC4F8, or a combination of two or three groups independently selected from these groups, and more preferably a group selected from OC3F6 and OC4F8. The combination of two or three groups independently selected from OC2F4, OC3F6 and OC4F8 is not particularly limited, and examples thereof include -OC2F4OC3F6-, -OC2F4OC4F8-, -OC3F6OC2F4-, -OC3F6OC3F6-, -OC3F6OC4F8-, -OC4F8OC4F8-, -OC4F8OC3F6-, -OC4F8OC2F4-, -OC Examples of the 2F4OC2F4OC3F6-, -OC2F4OC2F4OC4F8-, -OC2F4OC3F6OC2F4-, -OC2F4OC3F6OC3F6-, -OC2F4OC4F8OC2F4-, -OC3F6OC2F4OC2F4-, -OC3F6OC2F4OC3F6-, -OC3F6OC3F6OC2F4-, and -OC4F8OC2F4OC2F4- are mentioned. In the above formula (f3), g is preferably an integer of 3 or more, more preferably an integer of 5 or more. The above g is preferably an integer of 50 or less. In the above formula (f3), OC2F4, OC3F6, OC4F8, OC5F 10 and OC6F 12 may be either linear or branched, and is preferably linear. In this embodiment, the above formula (f3) is preferably -(OC2F4-OC3F6) g -or- (OC2F4-OC4F8) g -It is.

[0086] In the above formula (f4), R 6 , R 7 and g have the same meanings as those described in the above formula (f3) and have the same embodiments. 6’ , R 7’ and g' are R 6 , R 7 and g have the same meaning and behavior. r is preferably

[0087] [ka] [In the formula, * indicates the bond position.] and more preferably

[0088] [ka] [In the formula, * indicates the bond position.] It is.

[0089] In the above formula (f5), e is preferably an integer of 1 or more and 100 or less, more preferably an integer of 5 or more and 100 or less. The sum of a, b, c, d, e and f is preferably 5 or more, more preferably 10 or more, for example, 10 or more and 100 or less.

[0090] In the above formula (f6), f is preferably an integer of 1 or more and 100 or less, more preferably an integer of 5 or more and 100 or less. The sum of a, b, c, d, e and f is preferably 5 or more, more preferably 10 or more, for example, 10 or more and 100 or less.

[0091] In one embodiment, the R F is a group represented by the above formula (f1).

[0092] In one embodiment, the R F is a group represented by the above formula (f2).

[0093] In one embodiment, the R F is a group represented by the above formula (f3).

[0094] In one embodiment, the R F is a group represented by the above formula (f4).

[0095] In one embodiment, the R F is a group represented by the above formula (f5).

[0096] In one embodiment, the R F is a group represented by the above formula (f6).

[0097] In one embodiment, the fluorine-containing silane compound contained in the first surface treatment layer preferably contains a structure represented by the above formula (f1), (f2), (f3), (f5) or (f6), more preferably contains a structure represented by the above formula (f1) or (f2), and even more preferably contains a structure represented by the above formula (f1), from the viewpoint of the slipperiness of the first surface treatment layer.

[0098] In one embodiment, the fluorine-containing silane compound that may be contained in the second layer preferably contains a structure represented by the above formula (f1), (f2), (f3), (f4), (f5) or (f6), more preferably contains a structure represented by the above formula (f1) or (f2), and even more preferably contains a structure represented by the above formula (f2).

[0099] Above R F In the formula, the ratio of e to f (hereinafter referred to as "e / f ratio") is 0.1 to 10, preferably 0.2 to 5, more preferably 0.2 to 2, even more preferably 0.2 to 1.5, and even more preferably 0.2 to 0.85. By making the e / f ratio 10 or less, the slipperiness, abrasion resistance, and chemical resistance (e.g., resistance to artificial sweat) of the surface treatment layer obtained from this compound are further improved. The smaller the e / f ratio, the more improved the slipperiness and abrasion resistance of the surface treatment layer. On the other hand, by making the e / f ratio 0.1 or more, the stability of the compound can be further improved. The larger the e / f ratio, the more improved the stability of the compound.

[0100] R F1 The fluoroalkyl group represented by the formula (I) is a group in which a hydrogen atom contained in an alkyl group is replaced with a fluorine atom, and may be linear or branched. F1 The fluoroalkyl group represented by the formula (I) is preferably 1-50 Fluoroalkyl groups, more preferably C 1-20 Fluoroalkyl groups, more preferably C 1-16 Fluoroalkyl groups, such as C 1-10Fluoroalkyl groups, and also C 1-6 Fluoroalkyl groups, especially C 1-3 In one embodiment, R F1 is a perfluoroalkyl group in which all hydrogen atoms are replaced with fluorine atoms. In this embodiment, the perfluoroalkyl group is preferably a linear or branched C 1-50 Perfluoroalkyl groups, more preferably linear or branched C 1-20 Perfluoroalkyl groups, more preferably linear or branched C 1-16 Perfluoroalkyl groups, for example linear or branched C 1-10 Perfluoroalkyl groups, as well as linear or branched C 1-6 Perfluoroalkyl groups, especially linear or branched C 1-3 It may be a perfluoroalkyl group.

[0101] R F2 The fluoroalkylene group represented by the formula (I) is a group in which a hydrogen atom contained in an alkylene group is replaced with a fluorine atom, and may be linear or branched. F2 The fluoroalkylene group represented by the formula 1-50 Fluoroalkylene groups, more preferably C 1-20 Fluoroalkylene groups, more preferably C 1-16 Fluoroalkylene groups, for example, C 1-10 Fluoroalkylene groups, further C 1-6 Fluoroalkylene groups, especially C 1-3 In one embodiment, R F2 is a perfluoroalkylene group in which all hydrogen atoms are substituted with fluorine atoms. In this embodiment, the perfluoroalkylene group is preferably a linear or branched C 1-50 Perfluoroalkylene groups, more preferably linear or branched C 1-20 Perfluoroalkylene groups, more preferably linear or branched C 1-16Perfluoroalkylene groups, for example linear or branched C 1-10 Perfluoroalkylene groups, as well as linear or branched C 1-6 Perfluoroalkylene groups, especially linear or branched C 1-3 It may be a perfluoroalkylene group.

[0102] In the above fluorine-containing silane compound, R F1 and R F2 The number average molecular weight of the portion is not particularly limited, but is, for example, 500 to 30,000, preferably 1,500 to 30,000, and more preferably 2,000 to 10,000. F1 and R F2 The number average molecular weight of 19 The value is measured by F-NMR.

[0103] In another embodiment, R F1 and R F2 The number average molecular weight of the portion may be from 500 to 30,000, preferably from 1,000 to 20,000, more preferably from 2,000 to 15,000, even more preferably from 2,000 to 10,000, for example from 3,000 to 6,000.

[0104] In another embodiment, R F1 and R F2 The number average molecular weight of the portion may be from 4,000 to 30,000, preferably from 5,000 to 10,000, and more preferably from 6,000 to 10,000.

[0105] In the above formulas (1) and (2), R Si is independently in each occurrence a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent group containing a silicon atom to which a monovalent organic group is bonded, and at least one R Si is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0106] Here, the term "hydrolyzable group" refers to a group that can undergo a hydrolysis reaction, i.e., a group that can be eliminated from the main skeleton of a compound by a hydrolysis reaction. Examples of the hydrolyzable group include -OR j , -OCOR j , -ON=CR j 2, -NR j 2, -NHR j , -NCO, halogen (wherein R j is a substituted or unsubstituted C 1-4 (representing an alkyl group) and the like.

[0107] In a preferred embodiment, R Si is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0108] In a preferred embodiment, R Si is represented by the following formula (S1), (S2), (S3), or (S4): [ka] It is a group represented by the following formula:

[0109] In the above formula, R 11 is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0110] R 11 is preferably, independently at each occurrence, a hydrolyzable group.

[0111] R 11 is preferably, independently at each occurrence, -OR j , -OCOR j , -ON=CR j 2, -NR j 2, -NHR j , -NCO, or halogen (wherein R j is a substituted or unsubstituted C 1-4 alkyl group), more preferably -OR j (i.e., an alkoxy group). jExamples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl groups; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is a methyl group, and in another embodiment, R j is an ethyl group.

[0112] In the above formula, R 12 is independently at each occurrence a hydrogen atom or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above-mentioned hydrolyzable groups.

[0113] R 12 In the above, the monovalent organic group is preferably C 1-20 is an alkyl group, more preferably C 1-6 It is preferably an alkyl group, more preferably a methyl group.

[0114] In the above formula, n1 is (SiR 11 n1 R 12 3-n1 ) units are each independently an integer of 0 to 3. Si is a group represented by formula (S1) or (S2), R at the terminal of formula (1) and formula (2) Si In the portion (hereinafter also simply referred to as the “terminal portion” of formula (1) and formula (2)), n1 is 1 to 3 (SiR 11 n1 R 12 3-n1 ) unit is present. That is, in such a terminal portion, all n1s do not become 0 at the same time. In other words, in the terminal portion of formula (1) and formula (2), there is at least one Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0115] n1 is (SiR 11 n1 R 12 3-n1) units are each independently preferably an integer of 1 to 3, more preferably 2 or 3, and even more preferably 3.

[0116] In the above formula, X 11 is independently at each occurrence a single bond or a divalent organic group. Such a divalent organic group is preferably -R 28 -O x -R 29 -(In the formula, R 28 and R 29 each occurrence independently represents a single bond or C 1-20 is an alkylene group, and x is 0 or 1. 1-20 The alkylene group may be linear or branched, but is preferably linear. 1-20 The alkylene group is preferably 1-10 Alkylene group, more preferably C 1-6 Alkylene group, more preferably C 1-3 It is an alkylene group.

[0117] In one embodiment, X 11 may each independently in each occurrence be -C 1-6 Alkylene-OC 1-6 Alkylene- or -OC 1-6 It is alkylene.

[0118] In a preferred embodiment, X 11 each occurrence independently represents a single bond or a straight-chain C 1-6 An alkylene group, preferably a single bond or a straight chain C 1-3 An alkylene group, more preferably a single bond or a straight chain C 1-2 It is preferably a linear C 1-2 It is an alkylene group.

[0119] In the above formula, R 13 is independently at each occurrence a hydrogen atom or a monovalent organic group. Such a monovalent organic group is preferably 1-20 It is an alkyl group. 1-20The alkyl group may be straight or branched chain, but is preferably straight chain.

[0120] In a preferred embodiment, R 13 each occurrence independently represents a hydrogen atom or a straight-chain C 1-6 is an alkyl group, preferably a hydrogen atom or a straight-chain C 1-3 It is an alkyl group, preferably a hydrogen atom or a methyl group.

[0121] In the above formula, t in each occurrence is independently an integer of 2 or greater.

[0122] In a preferred embodiment, t is independently in each occurrence an integer from 2 to 10, preferably an integer from 2 to 6.

[0123] In the above formula, R 14 each occurrence independently represents a hydrogen atom, a halogen atom or -X 11 -SiR 11 n1 R 12 3-n1 The halogen atom is preferably an iodine atom, a chlorine atom or a fluorine atom, more preferably a fluorine atom. In a preferred embodiment, R 14 is a hydrogen atom.

[0124] In the above formula, R 15 is each independently in each occurrence a single bond, an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms.

[0125] In one embodiment, R 15 is each independently at each occurrence an oxygen atom, an alkylene group having 1 to 6 carbon atoms, or an alkyleneoxy group having 1 to 6 carbon atoms.

[0126] In a preferred embodiment, R 15 is a single bond.

[0127] In one embodiment, formula (S1) is formula (S1-a) below. [ka] [In the formula, R 11 , R 12 , R 13 , X 11 and n1 are as defined above in formula (S1); t1 and t2, in each occurrence, are each independently an integer of 1 or greater, preferably an integer of 1 to 10, more preferably an integer of 2 to 10, for example, an integer of 1 to 5 or an integer of 2 to 5; The order of occurrence of each repeating unit enclosed in parentheses with t1 and t2 is arbitrary in the formula.

[0128] In a preferred embodiment, formula (S1) is formula (S1-b) below. [ka] [In the formula, R 11 , R 12 , R 13 , X 11 , n1 and t are as defined above in formula (S1).

[0129] In the above formula, R a1 may each independently in each occurrence be -Z 1 -SiR 21 p1 R 22 q1 R 23 r1 It is.

[0130] Above Z 1 is independently an oxygen atom or a divalent organic group in each occurrence. 1 The structure written as is shown on the right side (SiR 21 p1 R 22 q1 R 23 r1 )

[0131] In a preferred embodiment, Z 1 is a divalent organic group.

[0132] In a preferred embodiment, Z 1 is Z 1 Preferably, in formula (S3), (Si-Z) does not include a compound that forms a siloxane bond with the Si atom to which it is bonded. 1 --Si) does not contain a siloxane bond.

[0133] Above Z 1 is preferably C 1-6 Alkylene group, -(CH2) z1 -O-(CH2) z2 - (wherein z1 is an integer of 0 to 6, for example, an integer of 1 to 6, and z2 is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH2) z3 -Phenylene-(CH2) z4 - (wherein z3 is an integer of 0 to 6, for example, an integer of 1 to 6, and z4 is an integer of 0 to 6, for example, an integer of 1 to 6). 1-6 The alkylene groups may be linear or branched, but are preferably linear. These groups may contain, for example, fluorine atoms, C 1-6 Alkyl group, C 2-6 Alkenyl groups, and C 2-6 It may be substituted by one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0134] In a preferred embodiment, Z 1 is C 1-6 Alkylene group or -(CH2) z3 -Phenylene-(CH2) z4 -, preferably -phenylene-(CH2) z4 -It is. 1 is such a group, light resistance, particularly ultraviolet resistance, can be improved.

[0135] In another preferred embodiment, the Z 1 is C 1-3 In one embodiment, Z is an alkylene group.1 can be -CH2CH2CH2-. In another embodiment, Z 1 can be -CH2CH2-.

[0136] Above R 21 may each independently in each occurrence be -Z 1’ -SiR 21’ p1’ R 22’ q1’ R 23’ r1’ It is.

[0137] Above Z 1’ is independently an oxygen atom or a divalent organic group in each occurrence. 1’ The structure written as is shown on the right side (SiR 21’ p1’ R 22’ q1’ R 23’ r1’ )

[0138] In a preferred embodiment, Z 1’ is a divalent organic group.

[0139] In a preferred embodiment, Z 1’ is Z 1’ Preferably, in formula (S3), (Si-Z) does not include a compound that forms a siloxane bond with the Si atom to which it is bonded. 1’ --Si) does not contain a siloxane bond.

[0140] Above Z 1’ is preferably C 1-6 Alkylene group, -(CH2) z1’ -O-(CH2) z2’ - (wherein z1' is an integer of 0 to 6, for example, an integer of 1 to 6, and z2' is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH2) z3’ -Phenylene-(CH2) z4’ - (wherein z3' is an integer of 0 to 6, for example, an integer of 1 to 6, and z4' is an integer of 0 to 6, for example, an integer of 1 to 6). 1-6The alkylene groups may be linear or branched, but are preferably linear. These groups may contain, for example, fluorine atoms, C 1-6 Alkyl group, C 2-6 Alkenyl groups, and C 2-6 It may be substituted by one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0141] In a preferred embodiment, Z 1’ is C 1-6 Alkylene group or -(CH2) z3’ -Phenylene-(CH2) z4’ -, preferably -phenylene-(CH2) z4’ -It is. 1’ is such a group, light resistance, particularly ultraviolet resistance, can be improved.

[0142] In another preferred embodiment, the Z 1’ is C 1-3 In one embodiment, Z is an alkylene group. 1’ can be -CH2CH2CH2-. In another embodiment, Z 1’ can be -CH2CH2-.

[0143] Above R 21’ may each independently in each occurrence be -Z 1” -SiR 22” q1” R 23” r1” It is.

[0144] Above Z 1” is independently an oxygen atom or a divalent organic group in each occurrence. 1” The structure written as is shown on the right side (SiR 22” q1” R 23” r1” )

[0145] In a preferred embodiment, Z 1” is a divalent organic group.

[0146] In a preferred embodiment, Z 1” is Z 1” Preferably, in formula (S3), (Si-Z) does not include a compound that forms a siloxane bond with the Si atom to which it is bonded. 1” --Si) does not contain a siloxane bond.

[0147] Above Z 1” is preferably C 1-6 Alkylene group, -(CH2) z1” -O-(CH2) z2” - (wherein z1" is an integer of 0 to 6, for example, an integer of 1 to 6, and z2" is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH2) z3” -Phenylene-(CH2) z4” - (wherein z3" is an integer of 0 to 6, for example, an integer of 1 to 6, and z4" is an integer of 0 to 6, for example, an integer of 1 to 6). 1-6 The alkylene groups may be linear or branched, but are preferably linear. These groups may contain, for example, fluorine atoms, C 1-6 Alkyl group, C 2-6 Alkenyl groups, and C 2-6 It may be substituted by one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0148] In a preferred embodiment, Z 1” is C 1-6 Alkylene group or -(CH2) z3” -Phenylene-(CH2) z4” -, preferably -phenylene-(CH2) z4” -It is. 1” is such a group, light resistance, particularly ultraviolet resistance, can be improved.

[0149] In another preferred embodiment, the Z 1” is C 1-3 In one embodiment, Z is an alkylene group. 1” can be -CH2CH2CH2-. In another embodiment, Z 1” can be -CH2CH2-.

[0150] Above R 22” is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0151] Above R 22” is preferably, independently at each occurrence, a hydrolyzable group.

[0152] Above R 22” is preferably, independently at each occurrence, -OR j , -OCOR j , -ON=CR j 2, -NR j 2, -NHR j , -NCO, or halogen (wherein R j is a substituted or unsubstituted C 1-4 alkyl group), more preferably -OR j (i.e., an alkoxy group). j Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl groups; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is a methyl group, and in another embodiment, R j is an ethyl group.

[0153] Above R 23” is independently at each occurrence a hydrogen atom or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above-mentioned hydrolyzable groups.

[0154] Above R 23” In the above, the monovalent organic group is preferably C 1-20 is an alkyl group, more preferably C 1-6 It is preferably an alkyl group, more preferably a methyl group.

[0155] The above q1″ is independently an integer of 0 to 3 in each occurrence, and the above r1″ is independently an integer of 0 to 3 in each occurrence. The sum of q1″ and r1″ is (SiR 22” q1” R 23” r1” ) units, it is 3.

[0156] The above q1" is (SiR 22” q1” R 23” r1” ) units are each independently preferably an integer of 1 to 3, more preferably 2 or 3, and even more preferably 3.

[0157] Above R 22’ is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0158] R 22’ is preferably, independently at each occurrence, a hydrolyzable group.

[0159] R 22’ is preferably, independently at each occurrence, -OR j , -OCOR j , -ON=CR j 2, -NR j 2, -NHR j , -NCO, or halogen (wherein R j is a substituted or unsubstituted C 1-4 alkyl group), more preferably -OR j (i.e., an alkoxy group). j Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl groups; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is a methyl group, and in another embodiment, R j is an ethyl group.

[0160] Above R 23’ is independently at each occurrence a hydrogen atom or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above-mentioned hydrolyzable groups.

[0161] R 23’ In the above, the monovalent organic group is preferably C 1-20 is an alkyl group, more preferably C 1-6 It is preferably an alkyl group, more preferably a methyl group.

[0162] The above p1' is independently an integer of 0 to 3 in each occurrence, q1' is independently an integer of 0 to 3 in each occurrence, and r1' is independently an integer of 0 to 3 in each occurrence. The sum of p', q1' and r1' is (SiR 21’ p1’ R 22’ q1’ R 23’ r1’ ) units, it is 3.

[0163] In one embodiment, p1' is 0.

[0164] In one embodiment, p1' is (SiR 21’ p1’ R 22’ q1’ R 23’ r1’ ) units may each independently be an integer of 1 to 3, an integer of 2 to 3, or 3. In a preferred embodiment, p1' is 3.

[0165] In one embodiment, q1' is (SiR 21’ p1’ R 22’ q1’ R 23’ r1’ ) units each independently represents an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0166] In one embodiment, p1' is 0 and q1' is (SiR 21’p1’ R 22’ q1’ R 23’ r1’ ) units each independently represents an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0167] Above R 22 is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0168] R 22 is preferably, independently at each occurrence, a hydrolyzable group.

[0169] R 22 is preferably, independently at each occurrence, -OR j , -OCOR j , -ON=CR j 2, -NR j 2, -NHR j , -NCO, or halogen (wherein R j is a substituted or unsubstituted C 1-4 alkyl group), more preferably -OR j (i.e., an alkoxy group). j Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl groups; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is a methyl group, and in another embodiment, R j is an ethyl group.

[0170] Above R 23 is independently at each occurrence a hydrogen atom or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above-mentioned hydrolyzable groups.

[0171] R 23 In the above, the monovalent organic group is preferably C 1-20 is an alkyl group, more preferably C1-6 It is preferably an alkyl group, more preferably a methyl group.

[0172] The above p1 is independently an integer of 0 to 3 in each occurrence, q1 is independently an integer of 0 to 3 in each occurrence, and r1 is independently an integer of 0 to 3 in each occurrence. The sum of p1, q1, and r1 is (SiR 21 p1 R 22 q1 R 23 r1 ) units, it is 3.

[0173] In one embodiment, p1 is 0.

[0174] In one embodiment, p1 is (SiR 21 p1 R 22 q1 R 23 r1 ) units may each independently be an integer of 1 to 3, an integer of 2 to 3, or 3. In a preferred embodiment, p1 is 3.

[0175] In one embodiment, q1 is (SiR 21 p1 R 22 q1 R 23 r1 ) units each independently represents an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0176] In one embodiment, p1 is 0 and q1 is (SiR 21 p1 R 22 q1 R 23 r1 ) units each independently represents an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0177] In the above formula, R b1 is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0178] Above R b1 is preferably, independently at each occurrence, a hydrolyzable group.

[0179] Above R b1 is preferably, independently at each occurrence, -OR j , -OCOR j , -ON=CR j 2, -NR j 2, -NHR j , -NCO, or halogen (wherein R j is a substituted or unsubstituted C 1-4 alkyl group), more preferably -OR j (i.e., an alkoxy group). j Examples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl groups; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is a methyl group, and in another embodiment, R j is an ethyl group.

[0180] In the above formula, R c1 is independently at each occurrence a hydrogen atom or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above-mentioned hydrolyzable groups.

[0181] Above R c1 In the above, the monovalent organic group is preferably C 1-20 is an alkyl group, more preferably C 1-6 It is preferably an alkyl group, more preferably a methyl group.

[0182] The above k1 is independently an integer of 0 to 3 in each occurrence, l1 is independently an integer of 0 to 3 in each occurrence, and m1 is independently an integer of 0 to 3 in each occurrence. The sum of k1, l1, and m1 is (SiR a1k1 R b1 l1 R c1 m1 ) units, it is 3.

[0183] In one embodiment, k1 is (SiR a1 k1 R b1 l1 R c1 m1 ) units are each independently an integer of 1 to 3, preferably 2 or 3, and more preferably 3. In a preferred embodiment, k1 is 3.

[0184] In the above formulas (1) and (2), R Si When is a group represented by formula (S3), preferably, at least two Si atoms to which hydroxyl groups or hydrolyzable groups are bonded are present in the terminal portions of formulas (1) and (2).

[0185] In a preferred embodiment, the group represented by formula (S3) is -Z 1 -SiR 22 q1 R 23 r1 (wherein q1 is an integer of 1 to 3, preferably 2 or 3, more preferably 3, and r1 is an integer of 0 to 2); -Z 1’ -SiR 22’ q1’ R 23’ r1’ (In the formula, q1' is an integer of 1 to 3, preferably 2 or 3, more preferably 3, and r1' is an integer of 0 to 2), or -Z 1” -SiR 22” q1” R 23” r1” (wherein q1″ is an integer of 1 to 3, preferably 2 or 3, more preferably 3, and r1″ is an integer of 0 to 2). Z 1 , Z 1’ , Z 1” , R 22 , R 23 , R 22’ , R 23’ , R22” , and R 23” has the same meaning as above.

[0186] In a preferred embodiment, in formula (S3), R 21’ When present, at least one, and preferably all, R 21’ In the above formula, q1″ is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0187] In a preferred embodiment, in formula (S3), R 21 When present, at least one, and preferably all, R 21 In the above formula, p1' is 0, and q1' is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0188] In a preferred embodiment, in formula (S3), R a1 When present, at least one, and preferably all, R a1 In the above formula, p1 is 0, and q1 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0189] In a preferred embodiment, in formula (S3), k1 is 2 or 3, preferably 3; p1 is 0; and q1 is 2 or 3, preferably 3.

[0190] R d1 may each independently in each occurrence be -Z 2 -CR 31 p2 R 32 q2 R 33 r2 It is.

[0191] Z 2 In each occurrence, each independently represents a single bond, an oxygen atom, or a divalent organic group. 2 The structure written as is shown on the right side (CR 31 p2 R 32 q2 R 33r2 )

[0192] In a preferred embodiment, Z 2 is a divalent organic group.

[0193] Above Z 2 is preferably C 1-6 Alkylene group, -(CH2) z5 -O-(CH2) z6 - (wherein z5 is an integer of 0 to 6, for example, an integer of 1 to 6, and z6 is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH2) z7 -Phenylene-(CH2) z8 - (wherein z7 is an integer of 0 to 6, for example, an integer of 1 to 6, and z8 is an integer of 0 to 6, for example, an integer of 1 to 6). 1-6 The alkylene groups may be linear or branched, but are preferably linear. These groups may contain, for example, fluorine atoms, C 1-6 Alkyl group, C 2-6 Alkenyl groups, and C 2-6 It may be substituted by one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0194] In a preferred embodiment, Z 2 is C 1-6 Alkylene group or -(CH2) z7 -Phenylene-(CH2) z8 -, preferably -phenylene-(CH2) z8 -It is. 2 is such a group, light resistance, particularly ultraviolet resistance, can be improved.

[0195] In another preferred embodiment, the Z 2 is C 1-3 In one embodiment, Z is an alkylene group. 2 can be -CH2CH2CH2-. In another embodiment, Z 2 can be -CH2CH2-.

[0196] R 31may each independently in each occurrence be -Z 2’ -CR 32’ q2’ R 33’ r2’ It is.

[0197] Z 2’ In each occurrence, each independently represents a single bond, an oxygen atom, or a divalent organic group. 2’ The structure written as is shown on the right side (CR 32’ q2’ R 33’ r2’ )

[0198] Above Z 2’ is preferably C 1-6 Alkylene group, -(CH2) z5’ -O-(CH2) z6’ - (wherein z5' is an integer of 0 to 6, for example, an integer of 1 to 6, and z6' is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH2) z7’ -Phenylene-(CH2) z8’ - (wherein z7' is an integer of 0 to 6, for example, an integer of 1 to 6, and z8' is an integer of 0 to 6, for example, an integer of 1 to 6). 1-6 The alkylene groups may be linear or branched, but are preferably linear. These groups may contain, for example, fluorine atoms, C 1-6 Alkyl group, C 2-6 Alkenyl groups, and C 2-6 It may be substituted by one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0199] In a preferred embodiment, Z 2’ is C 1-6 Alkylene group or -(CH2) z7’ -Phenylene-(CH2) z8’ -, preferably -phenylene-(CH2) z8’ -It is. 2’ is such a group, light resistance, particularly ultraviolet resistance, can be improved.

[0200] In another preferred embodiment, the Z 2’ is C 1-3 In one embodiment, Z is an alkylene group. 2’ can be -CH2CH2CH2-. In another embodiment, Z 2’ can be -CH2CH2-.

[0201] Above R 32’ may each independently in each occurrence be -Z 3 -SiR 34 n2 R 35 3-n2 It is.

[0202] Above Z 3 In each occurrence, each independently represents a single bond, an oxygen atom, or a divalent organic group. 3 The structure written as is shown on the right side (SiR 34 n2 R 35 3-n2 )

[0203] In one embodiment, Z 3 is an oxygen atom.

[0204] In one embodiment, Z 3 is a divalent organic group.

[0205] Above Z 3 is preferably C 1-6 Alkylene group, -(CH2) z5” -O-(CH2) z6” - (wherein z5" is an integer of 0 to 6, for example, an integer of 1 to 6, and z6" is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH2) z7” -Phenylene-(CH2) z8” - (wherein z7" is an integer of 0 to 6, for example, an integer of 1 to 6, and z8" is an integer of 0 to 6, for example, an integer of 1 to 6). 1-6 The alkylene groups may be linear or branched, but are preferably linear. These groups may contain, for example, fluorine atoms, C 1-6 Alkyl group, C2-6 Alkenyl groups, and C 2-6 It may be substituted by one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0206] In a preferred embodiment, Z 3 is C 1-6 Alkylene group or -(CH2) z7” -Phenylene-(CH2) z8” -, preferably -phenylene-(CH2) z8” -It is. 3 is such a group, light resistance, particularly ultraviolet resistance, can be improved.

[0207] In another preferred embodiment, the Z 3 is C 1-3 In one embodiment, Z is an alkylene group. 3 can be -CH2CH2CH2-. In another embodiment, Z 3 can be -CH2CH2-.

[0208] Above R 34 is independently at each occurrence a hydroxyl group or a hydrolyzable group.

[0209] R 34 is preferably, independently at each occurrence, a hydrolyzable group.

[0210] R 34 is preferably, independently at each occurrence, -OR j , -OCOR j , -ON=CR j 2, -NR j 2, -NHR j , -NCO, or halogen (wherein R j is a substituted or unsubstituted C 1-4 alkyl group), more preferably -OR j (i.e., an alkoxy group). jExamples of R include unsubstituted alkyl groups such as methyl, ethyl, propyl, isopropyl, n-butyl, and isobutyl groups; and substituted alkyl groups such as chloromethyl. Among these, alkyl groups, particularly unsubstituted alkyl groups, are preferred, and methyl or ethyl groups are more preferred. In one embodiment, R j is a methyl group, and in another embodiment, R j is an ethyl group.

[0211] Above R 35 is independently at each occurrence a hydrogen atom or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above-mentioned hydrolyzable groups.

[0212] Above R 35 In the above, the monovalent organic group is preferably C 1-20 is an alkyl group, more preferably C 1-6 It is preferably an alkyl group, more preferably a methyl group.

[0213] In the above formula, n2 is (SiR 34 n2 R 35 3-n2 ) units are each independently an integer of 0 to 3. Si is a group represented by formula (S4), n2 is 1 to 3 in the terminal portion of formula (1) and formula (2) (SiR 34 n2 R 35 3-n2 ) unit is present. That is, in such a terminal portion, all n2s do not become 0 at the same time. In other words, in the terminal portion of formula (1) and formula (2), there is at least one Si atom to which a hydroxyl group or a hydrolyzable group is bonded.

[0214] n2 is (SiR 34 n2 R 35 3-n2 ) units are each independently preferably an integer of 1 to 3, more preferably 2 or 3, and even more preferably 3.

[0215] Above R 33’ is independently at each occurrence a hydrogen atom, a hydroxyl group, or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above hydrolyzable groups.

[0216] Above R 33’ In the above, the monovalent organic group is preferably C 1-20 Alkyl group or -(C s H 2s ) t1 -(OC s H 2s ) t2 (wherein s is an integer of 1 to 6, preferably an integer of 2 to 4; t1 is 1 or 0, preferably 0; and t2 is an integer of 1 to 20, preferably an integer of 2 to 10, more preferably an integer of 2 to 6), more preferably C 1-20 Alkyl groups, more preferably C 1-6 An alkyl group, particularly preferably a methyl group, is preferred.

[0217] In one embodiment, R 33’ is a hydroxyl group.

[0218] In another embodiment, R 33’ is a monovalent organic group, preferably C 1-20 is an alkyl group, more preferably C 1-6 It is an alkyl group.

[0219] The above q2' is independently an integer of 0 to 3 in each occurrence, and the above r2' is independently an integer of 0 to 3 in each occurrence. The sum of q2' and r2' is not more than (CR 32’ q2’ R 33’ r2’ ) units, it is 3.

[0220] q2' is (CR 32’ q2’ R 33’ r2’ ) units are each independently preferably an integer of 1 to 3, more preferably 2 or 3, and even more preferably 3.

[0221] R 32 may each independently in each occurrence be -Z 3 -SiR 34 n2 R 35 3-n2 This is -Z 3 -SiR 34 n2 R 35 3-n2 is the above R 32’ This has the same meaning as described above.

[0222] Above R 33 is independently at each occurrence a hydrogen atom, a hydroxyl group, or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above hydrolyzable groups.

[0223] Above R 33 In the above, the monovalent organic group is preferably C 1-20 Alkyl group or -(C s H 2s ) t1 -(OC s H 2s ) t2 (wherein, s is each occurrence independently an integer of 1 to 6, preferably an integer of 2 to 4; t1 is 1 or 0, preferably 0; and t2 is an integer of 1 to 20, preferably an integer of 2 to 10, more preferably an integer of 2 to 6), more preferably C 1-20 Alkyl groups, more preferably C 1-6 An alkyl group, particularly preferably a methyl group, is preferred.

[0224] In one embodiment, R 33 is a hydroxyl group.

[0225] In another embodiment, R 33 is a monovalent organic group, preferably C 1-20 is an alkyl group, more preferably C 1-6 It is an alkyl group.

[0226] The above p2 is independently an integer of 0 to 3 in each occurrence, q2 is independently an integer of 0 to 3 in each occurrence, and r2 is independently an integer of 0 to 3 in each occurrence. The sum of p2, q2, and r2 is (CR 31 p2 R 32 q2 R 33 r2 ) units, it is 3.

[0227] In one embodiment, p2 is 0.

[0228] In one embodiment, p2 is (CR 31 p2 R 32 q2 R 33 r2 ) units may each independently be an integer of 1 to 3, an integer of 2 to 3, or 3. In a preferred embodiment, p2 is 3.

[0229] In one embodiment, q2 is (CR 31 p2 R 32 q2 R 33 r2 ) units each independently represents an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0230] In one embodiment, p2 is 0 and q2 is (CR 31 p2 R 32 q2 R 33 r2 ) units each independently represents an integer of 1 to 3, preferably an integer of 2 or 3, and more preferably 3.

[0231] Above R e1 may each independently in each occurrence be -Z 3 -SiR 34 n2 R 35 3-n2 This is -Z 3 -SiR34 n2 R 35 3-n2 is the above R 32’ This has the same meaning as described above.

[0232] Above R f1 is independently at each occurrence a hydrogen atom, a hydroxyl group, or a monovalent organic group. Such monovalent organic groups are monovalent organic groups other than the above hydrolyzable groups.

[0233] Above R f1 In the above, the monovalent organic group is preferably C 1-20 Alkyl group or -(C s H 2s ) t1 -(OC s H 2s ) t2 (wherein s is an integer of 1 to 6, preferably an integer of 2 to 4; t1 is 1 or 0, preferably 0; and t2 is an integer of 1 to 20, preferably an integer of 2 to 10, more preferably an integer of 2 to 6), more preferably C 1-20 Alkyl groups, more preferably C 1-6 An alkyl group, particularly preferably a methyl group, is preferred.

[0234] In one embodiment, R f1 is a hydroxyl group.

[0235] In another embodiment, R f1 is a monovalent organic group, preferably C 1-20 is an alkyl group, more preferably C 1-6 It is an alkyl group.

[0236] The above k2 is independently an integer of 0 to 3 in each occurrence, l2 is independently an integer of 0 to 3 in each occurrence, and m2 is independently an integer of 0 to 3 in each occurrence. The sum of k2, l2, and m2 is (CR d1 k2 R e1 l2 R f1 m2 ) units, it is 3.

[0237] In the above formulas (1) and (2), R Si When is a group represented by formula (S4), preferably, at least two Si atoms to which hydroxyl groups or hydrolyzable groups are bonded are present in the terminal portions of formulae (1) and (2).

[0238] In one embodiment, R Si is a group represented by formula (S4), n2 is 1 to 3, preferably 2 or 3, and more preferably 3 (SiR 34 n2 R 35 3-n2 ) units are present in each terminal portion of formula (1) and formula (2) by 2 or more, for example, 2 to 27, preferably 2 to 9, more preferably 2 to 6, further preferably 2 to 3, and particularly preferably 3.

[0239] In a preferred embodiment, in formula (S4), R 32’ When present, at least one, and preferably all, R 32’ In the above formula, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0240] In a preferred embodiment, in formula (S4), R 32 When present, at least one, and preferably all, R 32 In the above formula, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0241] In a preferred embodiment, in formula (S4), R e1 When present, at least one, and preferably all, R a1 In the above formula, n2 is an integer of 1 to 3, preferably 2 or 3, and more preferably 3.

[0242] In a preferred embodiment, in formula (S4), k2 is 0, l2 is 2 or 3, preferably 3, and n2 is 2 or 3, preferably 3.

[0243] Above R g1 and R h1 may each independently in each occurrence be -Z 4 -SiR 11 n1 R 12 3-n1 , -Z 4 -SiR a1 k1 R b1 l1 R c1 m1 , -Z 4 -CR d1 k2 R e1 l2 R f1 m2 Here, R 11 , R 12 , R a1 , R b2 , R c1 , R d1 , R e1 , R f1 , n1, k1, l1, m1, k2, l2, and m2 are as defined above.

[0244] In a preferred embodiment, R g1 and R h1 are each independently -Z 4 -SiR 11 n1 R 12 3-n1 It is.

[0245] Above Z 4 In each occurrence, each independently represents a single bond, an oxygen atom, or a divalent organic group. 4 The structure written as is shown on the right side (SiR 11 n1 R 12 3-n1 )

[0246] In one embodiment, Z 4 is an oxygen atom.

[0247] In one embodiment, Z 4 is a divalent organic group.

[0248] Above Z 4 is preferably C 1-6 Alkylene group, -(CH2) z5” -O-(CH2) z6” - (wherein z5" is an integer of 0 to 6, for example, an integer of 1 to 6, and z6" is an integer of 0 to 6, for example, an integer of 1 to 6), or -(CH2) z7” -Phenylene-(CH2) z8” - (wherein z7" is an integer of 0 to 6, for example, an integer of 1 to 6, and z8" is an integer of 0 to 6, for example, an integer of 1 to 6). 1-6 The alkylene groups may be linear or branched, but are preferably linear. These groups may contain, for example, fluorine atoms, C 1-6 Alkyl group, C 2-6 Alkenyl groups, and C 2-6 It may be substituted by one or more substituents selected from alkynyl groups, but is preferably unsubstituted.

[0249] In a preferred embodiment, Z 4 is C 1-6 Alkylene group or -(CH2) z7” -Phenylene-(CH2) z8” -, preferably -phenylene-(CH2) z8” -It is. 3 is such a group, light resistance, particularly ultraviolet resistance, can be improved.

[0250] In another preferred embodiment, the Z 4 is C 1-3 In one embodiment, Z is an alkylene group. 4 can be -CH2CH2CH2-. In another embodiment, Z 4 can be -CH2CH2-.

[0251] In one embodiment, R Si is a group represented by formula (S2), (S3), (S4) or (S5). These compounds are capable of forming a surface treatment layer having high surface slip properties.

[0252] In one embodiment, R Si is a group represented by formula (S3), (S4) or (S5). These compounds have multiple hydrolyzable groups at one end, and therefore can form a surface treatment layer that adheres strongly to a substrate and has high abrasion resistance.

[0253] In one embodiment, R Si is a group represented by formula (S3) or (S4). These compounds can have multiple hydrolyzable groups branched from one Si atom or C atom at one end, and therefore can form a surface treatment layer with even higher abrasion resistance.

[0254] In one embodiment, R Si is a group represented by formula (S1).

[0255] In one embodiment, R Si is a group represented by formula (S2).

[0256] In one embodiment, R Si is a group represented by formula (S3).

[0257] In one embodiment, R Si is a group represented by formula (S4).

[0258] In one embodiment, R Si is a group represented by formula (S5).

[0259] In the above formulas (1) and (2), X A The fluoropolyether moiety (R) is the main component that provides water repellency and surface slipperiness. F1 and R F2 ) and a portion (R Si ) is interpreted as a linker connecting the X A may be a single bond or any other group, so long as the compounds represented by formulae (1) and (2) can exist stably.

[0260] In the above formula (1), α is an integer of 1 to 9, and β is an integer of 1 to 9. These α and β are X A The sum of α and β can vary depending on the valence of X A For example, X A When X is a decavalent organic group, the sum of α and β is 10, and for example, α can be 9 and β can be 1, α can be 5 and β can be 5, or α can be 1 and β can be 9. A When is a divalent organic group, α and β are 1.

[0261] In the above formula (2), γ is an integer of 1 to 9. γ is X A That is, γ can vary depending on the valence of X A is the valence of 1 minus 0.

[0262] X A each independently represents a single bond or a divalent to decavalent organic group;

[0263] Above X A The divalent to decavalent organic group in is preferably a divalent to octavalent organic group. In one embodiment, the divalent to decavalent organic group is preferably a divalent to tetravalent organic group, more preferably a divalent organic group. In another embodiment, the divalent to decavalent organic group is preferably a trivalent to octavalent organic group, more preferably a trivalent to hexavalent organic group.

[0264] In one embodiment, X A is a single bond or a divalent organic group, α is 1, and β is 1.

[0265] In one embodiment, X A is a single bond or a divalent organic group, and γ is 1.

[0266] In one embodiment, X A is a trivalent to hexavalent organic group, α is 1, and β is 2 to 5.

[0267] In one embodiment, X A is a trivalent to hexavalent organic group, and γ is 2 to 5.

[0268] In one embodiment, X A is a trivalent organic group, α is 1, and β is 2.

[0269] In one embodiment, X A is a trivalent organic group and γ is 2.

[0270] X A When is a single bond or a divalent organic group, formulas (1) and (2) are represented by the following formulas (1') and (2'). [ka]

[0271] In one embodiment, X A is a single bond.

[0272] In another embodiment, X A is a divalent organic group.

[0273] In one embodiment, X A Examples of the group include a single bond and the group represented by the following formula: -(R 51 ) p5 -(X 51 ) q5 - [In formula: R 51 is a single bond, -(CH2) s5 - or an o-, m- or p-phenylene group, preferably -(CH2) s5 - and s5 is an integer of 1 to 20, preferably an integer of 1 to 6, more preferably an integer of 1 to 3, and even more preferably 1 or 2; X 51 is -(X 52 ) l5 - represents X 52 each occurrence independently represents -O-, -S-, o-, m-, or p-phenylene group, -C(O)O-, -Si(R 53 )2-, -(Si(R 53 )2O)m5 -Si(R 53 )2-, -CONR 54 -,-O-CONR 54 -, -NR 54 - and - (CH2) n5 represents a group selected from the group consisting of -, R 53 represents, independently at each occurrence, a phenyl group; C 1-6 Alkyl group or C 1-6 represents an alkoxy group, preferably a phenyl group or 1-6 is an alkyl group, more preferably a methyl group; R 54 each occurrence independently represents a hydrogen atom, a phenyl group, or C 1-6 represents an alkyl group (preferably a methyl group); m5, in each occurrence, is independently an integer from 1 to 100, preferably an integer from 1 to 20; n5, in each occurrence, is independently an integer from 1 to 20, preferably an integer from 1 to 6, more preferably an integer from 1 to 3; l5 is an integer from 1 to 10, preferably an integer from 1 to 5, and more preferably an integer from 1 to 3; p5 is 0 or 1; q5 is 0 or 1; wherein at least one of p5 and q5 is 1, and the order of the repeating units enclosed in parentheses with p5 or q5 is arbitrary. Here, X is a divalent organic group represented by the formula: A (Typically X A Hydrogen atoms of C 1-3 Alkyl group and C 1-3 In a preferred embodiment, X A is not substituted with these groups.

[0274] In a preferred embodiment, the X A are each independently -(R 51 ) p5 -(X 51) q5 -R 52 -It is. 52 is a single bond, -(CH2) t5 - or an o-, m- or p-phenylene group, preferably -(CH2) t5 t5 is an integer of 1 to 20, preferably an integer of 2 to 6, and more preferably an integer of 2 to 3. 52 (Typically R 52 Hydrogen atoms of C 1-3 Alkyl group and C 1-3 In a preferred embodiment, R 56 is not substituted with these groups.

[0275] Preferably, the above X A are each independently Single bond, C 1-20 An alkylene group, -R 51 -X 53 -R 52 -or -X 54 -R 52 - [In the formula, R 51 and R 52 has the same meaning as above, X 53 teeth, -O-, -S-, -C(O)O-, -CONR 54 -, -O-CONR 54 -, -Si(R 53 )2-, -(Si(R 53 )2O) m5 -Si(R 53 )2-, -O-(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-, -O-(CH2)u5 -Si(R 53 )2-O-Si(R 53 )2-CH2CH2-Si(R 53 )2-O-Si(R 53 )2-, -O-(CH2) u5 -Si(OCH3)2OSi(OCH3)2-, -CONR 54 -(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-, -CONR 54 -(CH2) u5 -N(R 54 )- or -CONR 54 -(o-, m- or p-phenylene)-Si(R 53 )2- (In the formula, R 53 , R 54 and m5 are as defined above; u5 is an integer of 1 to 20, preferably an integer of 2 to 6, and more preferably an integer of 2 to 3. X 54 teeth, -S-, -C(O)O-, -CONR 54 -, -O-CONR 54 -, -CONR 54 -(CH2) u5 -(Si(R 54 )2O) m5 -Si(R 54 )2-, -CONR 54 -(CH2) u5 -N(R 54 )- or -CONR 54 -(o-, m- or p-phenylene)-Si(R 54 )2- (In the formula, each symbol has the same meaning as above.) represents.] It could be.

[0276] More preferably, the above X A are each independently Single bond, C 1-20 An alkylene group, -(CH2) s5 -X 53 -, -(CH2) s5 -X 53 -(CH2) t5 - -X 54 -or -X 54 -(CH2) t5 - [where, X 53 , X 54 , s5 and t5 are as defined above.] It is.

[0277] More preferably, the above X A are each independently Single bond, C 1-20 An alkylene group, -(CH2) s5 -X 53 -(CH2) t5 -or -X 54 -(CH2) t5 - [In the formula, each symbol has the same meaning as above.] It could be.

[0278] In a preferred embodiment, the X A are each independently Single bond C 1-20 An alkylene group, -(CH2) s5 -X 53 -or -(CH2) s5 -X 53 -(CH2) t5 - [In the formula, X 53 -O-, -CONR 54- or -O-CONR 54 - and R 54 each occurrence independently represents a hydrogen atom, a phenyl group, or C 1-6 represents an alkyl group, s5 is an integer from 1 to 20; t5 is an integer from 1 to 20. It could be.

[0279] In a preferred embodiment, the X A are each independently -(CH2) s5 -O-(CH2) t5 - -CONR 54 -(CH2) t5 - [In the formula, R 54 each occurrence independently represents a hydrogen atom, a phenyl group, or C 1-6 represents an alkyl group, s5 is an integer from 1 to 20; t5 is an integer from 1 to 20. It could be.

[0280] In one embodiment, the X A are each independently Single bond, C 1-20 An alkylene group, -(CH2) s5 -O-(CH2) t5 -, -(CH2) s5 -(Si(R 53 )2O) m5 -Si(R 53 )2-(CH2) t5 -, -(CH2) s5 -O-(CH2) u5 -(Si(R 53 )2O) m5 -Si(R 53 )2-(CH2) t5 -or -(CH2) s5-O-(CH2) t5 -Si(R 53 )2-(CH2) u5 -Si(R 53 )2-(C v H 2v )- [In the formula, R 53 m5, s5, t5 and u5 are the same as defined above, and v5 is an integer of 1 to 20, preferably an integer of 2 to 6, and more preferably an integer of 2 to 3.] It is.

[0281] In the above formula, -(C v H 2v )- may be straight chain or branched, for example, -CH2CH2-, -CH2CH2CH2-, -CH(CH3)-, -CH(CH3)CH2-.

[0282] Above X A are each independently a fluorine atom, C 1-3 Alkyl group and C 1-3 Fluoroalkyl groups (preferably C 1-3 perfluoroalkyl groups). In one embodiment, X A is non-substituted.

[0283] Furthermore, the above X A The left side of each equation is R F1 or R F2 and the right side is R Si Bind to.

[0284] In one embodiment, X A are each independently -OC 1-6 It may be other than an alkylene group.

[0285] In another embodiment, X A Examples of the groups include the following: [ka] [ka] [In the formula, R 41 are each independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or 1-6 an alkoxy group, preferably a methyl group; D is -CH2O(CH2)2-, -CH2O(CH2)3-, -CF2O(CH2)3-, -(CH2)2-, -(CH2)3-, -(CH2)4-, -CONH-(CH2)3-, -CON(CH3)-(CH2)3-, -CON(Ph)-(CH2)3- (wherein Ph means phenyl), and [ka] (In the formula, R 42 are each independently a hydrogen atom, C 1-6 or C 1-6 represents an alkoxy group, preferably a methyl group or a methoxy group, and more preferably a methyl group. is a group selected from E is -(CH2) n - (n is an integer from 2 to 6), D is the R of the molecular backbone F1 or R F2 and E is R Si Binds to .]

[0286] Above X A Specific examples include: Single bond, -CH2OCH2-, -CH2O(CH2)2-, -CH2O(CH2)3-, -CH2O(CH2)4-, -CH2O(CH2)5-, -CH2O(CH2)6-, <h2 style=";text-align:left;direction:ltr">-CH2O(CH2)3Si(CH3)2OSi(CH3)2(CH2)2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2O(CH2)3Si(CH3)2OSi(CH3)2OSi(CH3)2(CH2)2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)2Si(CH3)2(CH2)2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)3Si(CH3)2(CH2)2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)<h2 style=";text-align:left;direction:ltr"> 10 <h2 style=";text-align:left;direction:ltr"> Si(CH3)2(CH2)2-<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2O(CH2)3Si(CH3)2O(Si(CH3)2O)<h2 style=";text-align:left;direction:ltr"> 20 <h2 style=";text-align:left;direction:ltr"> Si(CH3)2(CH2)2-<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCF2CHFOCF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCF2CHFOCF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCF2CHFOCF2CF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CF2CF2OCF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CF2CF2OCF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CF2CF2OCF2CF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CF2CF2OCF(CF3)CF2OCF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CF2CF2OCF(CF3)CF2OCF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CF2CF2OCF(CF3)CF2OCF2CF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CHFCF2OCF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CHFCF2OCF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CHFCF2OCF2CF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CHFCF2OCF(CF3)CF2OCF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CHFCF2OCF(CF3)CF2OCF2CF2-、<h2 style=";text-align:left;direction:ltr"> <h2 style=";text-align:left;direction:ltr"> -CH2OCH2CHFCF2OCF(CF3)CF2OCF2CF2CF2-、<h2 style=";text-align:left;direction:ltr"> -CH2OCF2CHFOCF2CF2CF2-C(O)NH-CH2- -CH2OCH2(CH2)7CH2Si(OCH3)2OSi(OCH3)2(CH2)2Si(OCH3)2OSi(OCH3)2(CH2)2- -CH2OCH2CH2CH2Si(OCH3)2OSi(OCH3)2(CH2)3- -CH2OCH2CH2CH2Si(OCH2CH3)2OSi(OCH2CH3)2(CH2)3- -CH2OCH2CH2CH2Si(OCH3)2OSi(OCH3)2(CH2)2- -CH2OCH2CH2CH2Si(OCH2CH3)2OSi(OCH2CH3)2(CH2)2- -(CH2)2-Si(CH3)2-(CH2)2- -CH2- -(CH2)2- -(CH2)3- -(CH2)4- -(CH2)5- -(CH2)6- -CO- -CONH- -CONH-CH2- -CONH-(CH2)2- -CONH-(CH2)3- -CONH-(CH2)4- -CONH-(CH2)5- -CONH-(CH2)6- -CON(CH3)-CH2- -CON(CH3)-(CH2)2- -CON(CH3)-(CH2)3- -CON(CH3)-(CH2)4- -CON(CH3)-(CH2)5- -CON(CH3)-(CH2)6- -CON(Ph)-CH2-(wherein Ph means phenyl) -CON(Ph)-(CH2)2-(wherein Ph means phenyl) -CON(Ph)-(CH2)3- (wherein Ph means phenyl), -CON(Ph)-(CH2)4- (wherein Ph means phenyl), -CON(Ph)-(CH2)5- (wherein Ph means phenyl), -CON(Ph)-(CH2)6- (wherein Ph means phenyl), -CONH-(CH2)2NH(CH2)3-, -CONH-(CH2)6NH(CH2)3-, -CH2O-CONH-(CH2)3-, -CH2O-CONH-(CH2)6-, -S-(CH2)3-, -(CH2)2S(CH2)3-, -CONH-(CH2)3Si(CH3)2OSi(CH3)2(CH2)2-, -CONH-(CH2)3Si(CH3)2OSi(CH3)2OSi(CH3)2(CH2)2-, -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O)2Si(CH3)2(CH2)2-, -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O)3Si(CH3)2(CH2)2-, -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O) 10 Si(CH3)2(CH2)2-, -CONH-(CH2)3Si(CH3)2O(Si(CH3)2O) 20 Si(CH3)2(CH2)2-, -C(O)O-(CH2)3-, -C(O)O-(CH2)6-, -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-(CH2)2-, -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-CH(CH3)-, -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-(CH2)3-, -CH2-O-(CH2)3-Si(CH3)2-(CH2)2-Si(CH3)2-CH(CH3)-CH2-, -OCH2-, -O(CH2)3-, -OCFHCF2-, [ka] etc.

[0287] In yet another embodiment, X A are each independently represented by the formula: -(R 16 ) x1 -(CFR 17 ) y1 -(CH2) z1 In the formula, x1, y1 and z1 each independently represent an integer of 0 to 10, the sum of x1, y1 and z1 is 1 or more, and the order of the repeating units enclosed in parentheses in the formula is arbitrary.

[0288] In the above formula, R 16 is independently at each occurrence an oxygen atom, phenylene, carbazolylene, -NR 18 -(In the formula, R 18 represents a hydrogen atom or an organic group) or a divalent organic group. 18 is an oxygen atom or a divalent polar group.

[0289] The above-mentioned "divalent polar group" is not particularly limited, but examples thereof include -C(O)-, -C(=NR 19 )- and -C(O)NR 19 - (wherein R 19 represents a hydrogen atom or a lower alkyl group. The "lower alkyl group" is, for example, an alkyl group having 1 to 6 carbon atoms, such as methyl, ethyl, and n-propyl, which may be substituted with one or more fluorine atoms.

[0290] In the above formula, R 17are each independently a hydrogen atom, a fluorine atom or a lower fluoroalkyl group, preferably a fluorine atom, in each occurrence. The "lower fluoroalkyl group" is, for example, a fluoroalkyl group having 1 to 6 carbon atoms, preferably a fluoroalkyl group having 1 to 3 carbon atoms, preferably a perfluoroalkyl group having 1 to 3 carbon atoms, more preferably a trifluoromethyl group, a pentafluoroethyl group, and further preferably a trifluoromethyl group.

[0291] In yet another embodiment, X A Examples of include the following groups: [ka] [In the formula, R 41 are each independently a hydrogen atom, a phenyl group, an alkyl group having 1 to 6 carbon atoms, or 1-6 The alkoxy group is preferably a methyl group; each X A In the group, any one of T may be an R F1 or R F2 The following groups are attached to: -CH2O(CH2)2-, -CH2O(CH2)3-, -CF2O(CH2)3-, -(CH2)2-, -(CH2)3-, -(CH2)4-, -CONH-(CH2)3-, -CON(CH3)-(CH2)3-, -CON(Ph)-(CH2)3-, where Ph means phenyl, or [ka] [In the formula, R 42 are each independently a hydrogen atom, C 1-6 or C 1-6 represents an alkoxy group, preferably a methyl group or a methoxy group, and more preferably a methyl group. Some of the other Ts are R in the molecular backbone.Si and if present, each remaining T is independently a methyl group, a phenyl group, or a C 1-6 It is an alkoxy group, a radical scavenger group, or an ultraviolet absorbing group.

[0292] The radical scavenging group is not particularly limited as long as it can capture radicals generated by light irradiation, and examples thereof include residues of benzophenones, benzotriazoles, benzoic acid esters, phenyl salicylates, crotonic acids, malonic acid esters, organoacrylates, hindered amines, hindered phenols, and triazines.

[0293] The ultraviolet absorbing group is not particularly limited as long as it can absorb ultraviolet light, and examples thereof include residues of benzotriazoles, hydroxybenzophenones, esters of substituted and unsubstituted benzoic acid or salicylic acid compounds, acrylates or alkoxycinnamates, oxamides, oxanilides, benzoxazinones, and benzoxazoles.

[0294] In a preferred embodiment, preferred radical scavenging groups or ultraviolet absorbing groups include [ka] Examples include:

[0295] In this embodiment, X A may each independently be a trivalent to decavalent organic group.

[0296] In yet another embodiment, X A Examples of include the following groups: [ka] [In the formula, R 25 , R 26 and R 27 are each independently a divalent to hexavalent organic group, R 25 At least one R F1 Binds to R26 and R 27 Each has at least one R Si Binds to .]

[0297] In one embodiment, the R 25 is a single bond, C 1-20 Alkylene group, C 3-20 Cycloalkylene group, C 5-20 Arylene group, -R 57 -X 58 -R 59 -, -X 58 -R 59 - or -R 57 -X 58 -. Above, R 57 and R 59 are each independently a single bond, C 1-20 Alkylene group, C 3-20 Cycloalkylene group, or C 5-20 The above X is an arylene group. 58 is -O-, -S-, -CO-, -O-CO- or -COO-.

[0298] In one embodiment, the R 26 and R 27 are each independently a hydrocarbon or a group having at least one atom selected from N, O and S at the end or in the main chain of the hydrocarbon, and preferably 1-6 Alkyl group, -R 36 -R 37 -R 36 -, -R 36 -CHR 38 2-, etc. Here, R 36 are each independently a single bond or an alkyl group having 1 to 6 carbon atoms, preferably an alkyl group having 1 to 6 carbon atoms. 37 is N, O or S, preferably N or O. 38 -R 45 -R 46 -R 45 -, -R 46 -R 45 -or-R 45 -R 46 - Here, R 45are each independently an alkyl group having 1 to 6 carbon atoms. 46 is N, O or S, preferably O.

[0299] In this embodiment, X A may each independently be a trivalent to decavalent organic group.

[0300] In yet another embodiment, X A For example, [ka] [where, X a is a single bond or a divalent organic group. Examples of the group represented by the formula:

[0301] Above X a is a single bond or a divalent linking group directly bonded to the isocyanuric ring. X a is preferably a single bond, an alkylene group, or a divalent group containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond, and a sulfide bond, and more preferably a single bond, an alkylene group having 1 to 10 carbon atoms, or a divalent hydrocarbon group having 1 to 10 carbon atoms containing at least one bond selected from the group consisting of an ether bond, an ester bond, an amide bond, and a sulfide bond.

[0302] X a The formula is as follows: -(CX 121 X 122 ) x1 -(X a1 ) y1 -(CX 123 X 124 ) z1 - (In the formula, X 121 ~X 124 are each independently H, F, OH, or -OSi(OR 121 )3 (wherein the three R 121 are each independently an alkyl group having 1 to 4 carbon atoms; Above Xa1 is -C(=O)NH-, -NHC(=O)-, -O-, -C(=O)O-, -OC(=O)-, -OC(=O)O-, or -NHC(=O)NH- (the left side of each bond is CX 121 X 122 ), x1 is an integer from 0 to 10, y1 is 0 or 1, and z1 is an integer from 1 to 10. A group represented by the following formula is more preferred.

[0303] Above X a1 As the alkyl group, -O- or -C(=O)O- is preferable.

[0304] Above X a The formula is as follows: -(CF2) m11 -(CH2) m12 -O-(CH2) m13 - (In the formula, m11 is an integer of 1 to 3, m12 is an integer of 1 to 3, and m13 is an integer of 1 to 3.) A group represented by -(CF2) m14 -(CH2) m15 -O-CH2CH(OH)-(CH2) m16 - (In the formula, m14 is an integer of 1 to 3, m15 is an integer of 1 to 3, and m16 is an integer of 1 to 3.) A group represented by -(CF2) m17 -(CH2) m18 - (In the formula, m17 is an integer of 1 to 3, and m18 is an integer of 1 to 3.) A group represented by -(CF2) m19 -(CH2) m20 -O-CH2CH(OSi(OCH3)3)-(CH2) m21 - (In the formula, m19 is an integer of 1 to 3, m20 is an integer of 1 to 3, and m21 is an integer of 1 to 3.) or a group represented by -(CH2) m22 - (In the formula, m22 is an integer of 1 to 3.) A group represented by the following formula is particularly preferred.

[0305] Above X a As the above, although not particularly limited, specifically, -CH2-, -C2H4-, -C3H6-, -C4H8-, -C4H8-O-CH2-, -CO-O-CH2-CH(OH)-CH2-, -(CF2) n5 -(n5 is an integer from 0 to 4), -(CF2) n5 -(CH2) m5 -(n5 and m5 are each independently an integer of 0 to 4), -CF2CF2CH2OCH2CH(OH)CH2-, -CF2CF2CH2OCH2CH(OSi(OCH3)3)CH2- etc.

[0306] In this embodiment, X A may each independently be a di- or trivalent organic group.

[0307] The fluorine-containing silane compound represented by the above formula (1) or formula (2) is not particularly limited, but may be 5×10 2 ~1×10 5 Within this range, it is preferable from the viewpoint of wear resistance that the average molecular weight is 2,000 to 32,000, more preferably 2,500 to 12,000. Note that the "average molecular weight" refers to a number average molecular weight, and the "average molecular weight" is 19 The value is measured by F-NMR.

[0308] The content of the fluorine-containing silane compound represented by the above formula (1) or (2) can be preferably from 90% by mass to 100% by mass, more preferably from 95% by mass to 100% by mass, in a total of 100% by mass of the fluorine-containing silane compounds.

[0309] The content of the fluoropolyether group-containing silane compound is preferably 0.02 to 40.0 mass%, more preferably 0.02 to 30.0 mass%, further preferably 0.04 to 25.0 mass%, and particularly preferably 0.05 to 20.0 mass% in 100 mass% of the surface treatment agent. By setting the content of the fluoropolyether group-containing silane compound within the above range, higher water and oil repellency can be obtained. In the composition of the present disclosure, the non-volatile content may be the portion excluding the solvent from the total amount of the composition.

[0310] The content of the fluorine-containing silane compound may be preferably 0.02 to 40.0 mass%, more preferably 0.02 to 30.0 mass%, further preferably 0.04 to 25.0 mass%, and particularly preferably 0.05 to 20.0 mass%, in 100 mass% of the surface treatment agent. By setting the content of the fluorine-containing silane compound within the above range, higher water and oil repellency can be obtained.

[0311] The surface treatment agent may further contain a solvent. By containing a solvent, the composition has good handleability. When a layer is formed using such a composition, the formed layer can be a continuous thin film. In addition, such a composition can contribute to the formation of a thin film of any thickness.

[0312] The solvent is not particularly limited, but examples thereof include perfluoroaliphatic hydrocarbons having 5 to 12 carbon atoms (e.g., perfluorohexane, perfluoromethylcyclohexane, and perfluoro-1,3-dimethylcyclohexane); polyfluoroaromatic hydrocarbons (e.g., bis(trifluoromethyl)benzene); polyfluoroaliphatic hydrocarbons (e.g., C6F 13CH2CH3 (e.g., Asahiklin® AC-6000 manufactured by Asahi Glass Co., Ltd.), 1,1,2,2,3,3,4-heptafluorocyclopentane (e.g., Zeorora® H manufactured by Zeon Corporation); hydrofluoroethers (HFEs) (e.g., perfluoropropyl methyl ether (C3F7OCH3) (e.g., Novec® 7000 manufactured by Sumitomo 3M Limited), perfluorobutyl methyl ether (C4F9OCH3) (e.g., Novec® 7100 manufactured by Sumitomo 3M Limited), alkyl perfluoroalkyl ethers (perfluoroalkyl groups and alkyl groups may be linear or branched) such as perfluorobutyl ethyl ether (C4F9OC2H5) (e.g., Novec (trademark) 7200 manufactured by Sumitomo 3M Limited), perfluorohexyl methyl ether (C2F5CF(OCH3)C3F7) (e.g., Novec (trademark) 7300 manufactured by Sumitomo 3M Limited), or CF3CH2OCF2CHF2 (e.g., Asahiklin (registered trademark) AE-3000 manufactured by Asahi Glass Co., Ltd.). These solvents can be used alone or as a mixture of two or more kinds. Among them, hydrofluoroethers are preferred, and perfluorobutyl methyl ether (C4F9OCH3) and / or perfluorobutyl ethyl ether (C4F9OC2H5) are particularly preferred.

[0313] The boiling point (atmospheric pressure) of the solvent may be preferably less than 105°C, more preferably 90°C or less, and even more preferably 80°C or less. When the solvent has a boiling point in the above range, the surface treatment agent of the present disclosure is relatively easily vaporized without applying heat or the like when applied to a substrate, and the time and energy required for the surface treatment process can be reduced. The lower limit of the boiling point is not particularly limited, but may be, for example, 30°C or more, preferably 50°C or more.

[0314] The content of the solvent may be preferably 50 to 99.7 mass%, more preferably 60 to 99.7 mass%, further preferably 70 to 99.7 mass%, and particularly preferably 80 to 99.7 mass%, based on 100 mass% in total of the surface treatment agent.

[0315] The surface treatment agent of the present disclosure may further contain a (non-reactive) fluoropolyether compound that can be understood as a fluorine-containing oil, preferably a perfluoro(poly)ether compound (collectively referred to below as "fluorine-containing oil"), a (non-reactive) silicone compound that can be understood as a silicone oil (hereinafter referred to as "silicone oil"), alcohols, catalysts, surfactants, polymerization inhibitors, sensitizers, etc. The other components are components different from the above-mentioned fluorine-containing silane compound and solvent.

[0316] The fluorine-containing oil is not particularly limited, but examples thereof include compounds represented by the following general formula (4) (perfluoro(poly)ether compounds). Rf 5 -(OC4F8) a” -(OC3F6) b” -(OC2F4) c” -(OCF2) d” -Rf 6 (4) In the formula, Rf 5 C may be substituted by one or more fluorine atoms. 1-16 Alkyl groups (preferably C 1-16 Rf represents a perfluoroalkyl group; 6 C may be substituted by one or more fluorine atoms. 1-16 Alkyl groups (preferably C 1-16 perfluoroalkyl group), a fluorine atom or a hydrogen atom, Rf 5 and Rf 6 More preferably, each independently represents C 1-3 It is a perfluoroalkyl group. a", b", c" and d" respectively represent the number of four types of repeating units of perfluoro(poly)ether constituting the main skeleton of the polymer, and are each independently an integer of 0 to 300, and the sum of a", b", c" and d" is greater than 30, preferably 40 to 300, and more preferably 50 to 300. The order of occurrence of each repeating unit enclosed in parentheses with the subscript a", b", c" or d" is arbitrary in the formula. Among these repeating units, -(OC4F8)- may be any of -(OCF2CF2CF2CF2)-, -(OCF(CF3)CF2CF2)-, -(OCF2CF(CF3)CF2)-, -(OCF2CF2CF(CF3))-, -(OC(CF3)2CF2)-, -(OCF2C(CF3)2)-, -(OCF(CF3)CF(CF3))-, -(OCF(C2F5)CF2)- and (OCF2CF(C2F5))-, but is preferably -(OCF2CF2CF2CF2)-. -(OC3F6)- may be any of -(OCF2CF2CF2)-, -(OCF(CF3)CF2)- and (OCF2CF(CF3))-, but is preferably -(OCF2CF2CF2)-. -(OC2F4)- may be either -(OCF2CF2)- or (OCF(CF3))-, but is preferably -(OCF2CF2)-.

[0317] Examples of the perfluoro(poly)ether compound represented by the above general formula (4) include compounds represented by the following general formulas (4a) and (4b) (which may be one type or a mixture of two or more types). Rf 5 -(OCF2CF2CF2) b” -Rf 6 (4a) Rf 5 -(OCF2CF2CF2CF2) a” -(OCF2CF2CF2) b” -(OCF2CF2) c” -(OCF2) d” -Rf 6 (4b) In these formulas, Rf 5 and Rf 6is as defined above; in formula (4a), b" is an integer of 1 or more and 100 or less; in formula (4b), a" and b" are each independently an integer of 0 or more and 30 or less, and c" and d" are each independently an integer of 1 or more and 300 or less. The order of occurrence of each repeating unit enclosed in parentheses with the subscripts a", b", c", and d" is arbitrary in the formula.

[0318] From another perspective, the fluorine-containing oil is represented by the general formula Rf 3 -F(where Rf 3 is C 5-16 It may be a compound represented by the formula: embedded image which is a perfluoroalkyl group. It may also be a chlorotrifluoroethylene oligomer.

[0319] The above-mentioned fluorinated oil may have a number average molecular weight of preferably 1000 or more, more preferably 1500 or more, and even more preferably 2000 or more. The above-mentioned fluorinated oil may have a number average molecular weight of preferably 30000 or less, more preferably 20000 or less, and even more preferably 10000 or less. The molecular weight of the fluorinated oil may be measured using GPC.

[0320] The fluorine-containing oil may be contained in an amount of, for example, 0 to 50 mass%, preferably 0 to 30 mass%, more preferably 0 to 5 mass% relative to the surface treatment agent. In one embodiment, the surface treatment agent of the present disclosure is substantially free of fluorine-containing oil. "Substantially free of fluorine-containing oil" means that the surface treatment agent does not contain any fluorine-containing oil or may contain a very small amount of fluorine-containing oil.

[0321] In one embodiment, the number average molecular weight of the fluorine-containing oil may be smaller than the number average molecular weight of the fluorine-containing silane compound.By setting the number average molecular weight in this range, the surface treatment layer obtained from the compound can be prevented from decreasing in transparency, and a cured product having high abrasion resistance and high surface slipperiness can be formed.

[0322] The fluorine-containing oil contributes to improving the surface slip properties of the layer formed by the surface treatment agent of the present disclosure.

[0323] The silicone oil may be, for example, a linear or cyclic silicone oil having 2,000 or less siloxane bonds. The linear silicone oil may be a so-called straight silicone oil or a modified silicone oil. The straight silicone oil may be dimethyl silicone oil, methylphenyl silicone oil, or methylhydrogen silicone oil. The modified silicone oil may be a straight silicone oil modified with alkyl, aralkyl, polyether, higher fatty acid ester, fluoroalkyl, amino, epoxy, carboxyl, or alcohol. The cyclic silicone oil may be, for example, cyclic dimethylsiloxane oil.

[0324] In the surface treatment agent of the present disclosure, such silicone oil may be contained in an amount of, for example, 0 to 300 parts by mass, preferably 50 to 200 parts by mass, relative to a total of 100 parts by mass of the fluorine-containing silane compounds of the present disclosure (when two or more types are used, the total of these, the same applies below).

[0325] The silicone oil contributes to improving the surface slipperiness of the surface treatment layer.

[0326] Examples of the alcohols include alcohols having 1 to 6 carbon atoms which may be substituted with one or more fluorine atoms, such as methanol, ethanol, iso-propanol, tert-butanol, CF3CH2OH, CF3CF2CH2OH, and (CF3)2CHOH. By adding these alcohols to the surface treatment agent, the stability of the surface treatment agent is improved, and the compatibility of the fluorine-containing silane compound with the solvent is also improved.

[0327] The alcohol is preferably contained in the surface treatment agent in an amount of 0.1 to 5 times, more preferably 0.5 to 3 times, and even more preferably 0.8 to 1.2 times the molar ratio of the metal compound. By setting the content ratio of the alcohol in the above range, the stability of the surface treatment layer can be further improved.

[0328] Examples of the catalyst include acids (eg, acetic acid, trifluoroacetic acid, etc.), bases (eg, ammonia, triethylamine, diethylamine, etc.), transition metals (eg, Ti, Ni, Sn, etc.), and the like.

[0329] The catalyst promotes the hydrolysis and dehydration condensation of the fluorine-containing silane compound of the present disclosure, and promotes the formation of the layer formed by the surface treatment agent of the present disclosure.

[0330] Other examples of the other components include tetraethoxysilane, methyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, and methyltriacetoxysilane in addition to the above.

[0331] It should be noted that the processing method of the present disclosure may also be applied to a display panel that has been removed from an electronic device, or to a glass substrate having a layer that has been further removed from a display panel.

[0332] (Second embodiment: electronic device) The electronic device of the present disclosure is an electronic device including a display panel, The display panel includes a glass substrate, a first surface treatment layer covering a portion of a surface of the glass substrate, and a second layer covering another portion of the surface of the glass substrate; the first layer is a layer formed from a surface treatment agent containing a fluorine-containing silane compound, The first layer and the second layer have different compositions.

[0333] The surface of the display panel of the device of the present disclosure can exhibit good water repellency.

[0334] The electronic device is the same as the electronic device in the first embodiment.

[0335] The electronic device includes a display panel, which may be a display panel, a touch panel, a screen, or the like, and includes a glass substrate, a first layer covering a portion of a surface of the glass substrate, and a second layer covering another portion of the surface of the glass substrate.

[0336] The glass constituting the glass substrate may be an aluminosilicate glass, a soda glass, a borosilicate glass, or the like, and is preferably an aluminosilicate glass. The thickness of the glass substrate can typically be 0.1 mm or more and 1 mm or less.

[0337] The first layer is formed by a surface treatment agent containing a fluorine-containing silane compound. The fluorine-containing silane compound and the surface treatment agent are the same as those in the first embodiment. The first layer may contain a fluorine-containing silane compound and a compound produced by hydrolysis and polycondensation of the fluorine-containing silane compound.

[0338] The first layer covers a part of the surface of the glass substrate. In the electronic device of this embodiment, the area covered by the first layer may be an area on the surface of the display panel that is relatively frequently subjected to contact or friction when the electronic device is used, for example, the center of the surface of the display panel. This improves the slipperiness of the surface of the area that is likely to be subjected to friction or contact when the electronic device is used, and makes it easier to maintain surface properties such as water repellency, oil repellency, and antifouling properties. The central portion of the display panel may be a portion that corresponds to both the middle portion and the middle portion when the display panel is vertically divided into thirds, i.e., an upper portion, a middle portion, and a lower portion, and when the display panel is horizontally divided into thirds, i.e., a right portion, a middle portion, and a left portion.

[0339] The second layer covers another part of the surface of the glass substrate. The other part of the surface of the glass substrate may be a part or all of the part of the surface of the glass substrate that is not covered by the first layer. The area of ​​the surface of the glass substrate that may be covered by the second layer may be an area that is relatively infrequently subjected to contact or friction during use of the electronic device, and may be, for example, one or more selected from the periphery and corners of the surface of a display panel. The peripheral portion of the display panel may be one or more selected from a portion of the upper or lower portion corresponding to the middle portion and a portion of the middle portion corresponding to the right or left portion when the display panel is vertically divided into thirds into an upper portion, a middle portion and a lower portion and horizontally divided into thirds into a right portion, a middle portion and a left portion. The corner portion of the display panel may be a portion of the upper or lower portion corresponding to the right or left portion when the display panel is vertically divided into thirds into an upper portion, a middle portion and a lower portion and horizontally divided into thirds into a right portion, a middle portion and a left portion.

[0340] The composition of the first layer and the second layer are different from each other. One embodiment of the first layer and the second layer being different from each other includes an embodiment in which the fluorine-containing silane compound contained in the first layer is different from the fluorine-containing compound contained in the second layer, and particularly includes an embodiment in which the fluoropolyether group-containing silane compound contained in the first layer is different from the fluoropolyether group-containing silane compound contained in the second layer. The second layer may preferably include a compound used to impart one or more selected from water repellency, oil repellency, slipperiness, antifouling and antifogging properties to the glass substrate, and a reaction product thereof. The compound may be, for example, one or more selected from a fluorine-containing compound, a silicone compound and an acrylic compound.

[0341] The fluorine-containing compound is preferably a fluorine-containing silane compound, and more preferably the fluoropolyether group-containing silane compound. The fluoropolyether group-containing silane compound has the same meaning as the fluoropolyether group-containing silane compound in the first embodiment.

[0342] A layer other than the first layer and the second layer may be disposed on the surface of the glass substrate. The other layer preferably covers the surface of the glass substrate and may be partially overlapped with the second layer, may be provided on the second layer, or may be provided between the second layer and the glass substrate. Examples of such other layer include a hard coat layer and an anti-reflection layer.

[0343] The display panel may further include other members in addition to the glass substrate. The glass substrate may typically be disposed on the other members, i.e., on the front side of the display panel relative to the other members.

[0344] The maximum value of the dynamic friction coefficient of the surface of the display panel may be, for example, 1.1 times or more, further 1.2 times or more, particularly 1.3 times or more, and may be, for example, 2.0 times or less, further 1.8 times or less, of the minimum value of the dynamic friction coefficient of the surface of the display panel. It is considered that the surface not including the second layer has a high dynamic friction coefficient and reduced slipperiness before the plasma irradiation and the application of the surface treatment agent. It is considered that the dynamic friction coefficient is reduced in the portion where the first layer is formed by the formation of the first layer, and therefore the portion is more slippery than the portion not including the second layer or the portion where the second layer is formed.

[0345] The maximum and minimum values ​​of the dynamic friction coefficient of the surface of the display panel may be the maximum and minimum values ​​obtained when the display panel is divided into three equal sections in each of the vertical and horizontal directions, resulting in nine sections, and the dynamic friction coefficient is measured in each section.

[0346] The kinetic friction coefficient of the surface of the first layer is preferably different from the kinetic friction coefficient of the surface of the second layer, and in one embodiment, the kinetic friction coefficient of the surface of the first layer is preferably smaller than the kinetic friction coefficient of the surface of the second layer. For example, the kinetic friction coefficient of the surface of the first layer may be, for example, 0.9 times or less, further 0.8 times or less, particularly 0.7 times or less, and may be, for example, 0.3 times or more, further 0.4 times or more, relative to the kinetic friction coefficient of the surface of the second layer.

[0347] The average water contact angle of the surface of the display panel may be, for example, 108° or more, or even 110° or more, and may be, for example, 160° or less, 150° or less, or 140° or less. The average water contact angle of the surface of the display panel may be determined by dividing the display panel into three equal sections in each of the vertical and horizontal directions, dividing the panel into nine sections, measuring the water contact angle in each section, and calculating the average value.

[0348] The electronic device is An electronic device including a display panel having a glass substrate and a second layer covering a portion of a surface of the glass substrate, irradiating at least a part of one or more selected from a surface of the glass substrate and a surface of the second layer with plasma; applying a surface treatment agent to the plasma irradiated area to form a first surface treatment layer; The surface treatment agent can be produced by a production method that includes a fluorine-containing silane compound.

[0349] In the above manufacturing method, at least a portion of one or more selected from the surface of the glass substrate and the surface of the second layer, plasma and its irradiation, the precursor layer, the surface treatment agent, and the fluorine-containing silane compound are defined as at least a portion of one or more selected from the surface of the glass substrate and the surface of the second layer, plasma and its irradiation, the precursor layer, the surface treatment agent, and the fluorine-containing silane compound in the first embodiment.

[0350] The electronic device of the present disclosure may be manufactured by the above-described manufacturing method, but is not limited to those manufactured by such a method. EXAMPLES

[0351] The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these.

[0352] (Example) In a glass substrate (display panel) coated with a fluoropolyether group-containing silane compound (A), the area (part) where the water contact angle is less than 100° is irradiated with an illuminance of 12.4 W / cm 2 After low-temperature plasma treatment was performed at an irradiation distance of 3 mm, an irradiation speed of 5 mm / sec, and an irradiation temperature of 47°C, a solution of fluoropolyether group-containing silane compound (B) dissolved in hydrofluoroether (3M, Novec HFE7200) and adjusted to 0.1 wt% was sprayed. After coating, the sample was left at 25°C for 12 hours, and the water contact angle was measured.

[0353] Fluoropolyether group-containing silane compound (A) [ka] PFPE:CF3(OCF2CF2) m (OCF2) n Fluoropolyether group-containing silane compound (B) [ka] PFPE:CF3(OCF2CF2) m (OCF2) n

[0354] [Table 1]

[0355] (Method for measuring static contact angle of water) The static contact angle was measured using a fully automatic contact angle meter, DropMaster 700 (manufactured by Kyowa Interface Science Co., Ltd.). The substrate having the formed surface treatment layer was placed horizontally and 2 μL of water was dropped onto the surface from a microsyringe. A still image was taken 1 second after the drop with a video microscope to measure the static contact angle.

[0356] (Method of measuring the dynamic friction coefficient) The dynamic friction coefficient was measured using FPT-1 (LabThink) under the following conditions. Wear element: high-quality paper Ground contact area: 20mm x 20mm Load: 200gf Traveling speed: 200mm / min

Claims

1. A method for treating a display panel of an electronic device, comprising the steps of: Irradiating at least a partial area of ​​a surface of the display panel with plasma; applying a surface treatment agent to at least the area irradiated with the plasma to form a first surface treatment layer; the display panel has a second surface treatment layer before being irradiated with plasma; the second surface treatment layer is formed using one or more compounds selected from a fluorine-containing compound and a silicone compound, The surface treatment method, wherein the surface treatment agent contains a fluorine-containing silane compound.

2. The method of claim 1 , wherein the plasma is a low temperature plasma.

3. The treatment method according to claim 1 , wherein a water contact angle in at least a portion of the region to be irradiated with the plasma is less than 100° before the plasma is irradiated.

4. The plasma irradiation had an irradiation intensity of 1 W / cm ２ More than 100W / cm ２ The processing method according to claim 1 , which is carried out under the condition of an irradiation distance of 1 mm or more and 300 mm or less.

5. The processing method according to claim 1 , wherein the plasma irradiation is carried out under the condition of a plasma irradiation speed of 1 mm / sec or more and 50 mm / sec or less.

6. The method according to claim 1 , wherein the surface treatment agent is applied within 60 minutes after the plasma irradiation is terminated.

7. The processing method according to claim 1 , wherein the plasma irradiation is carried out at a plasma temperature of 60° C. or less.

8. 2. The method according to claim 1, wherein after the first surface treatment layer is formed, a water contact angle of the surface of the display panel in a portion having the first surface treatment layer is 100[deg.] or more.

9. The fluorine-containing silane compound is represented by the following formula (1) or (2): 【Chemistry 1】 [In the formula: R Ｆ１ is independently at each occurrence Rf １ -R Ｆ -O ｑ - or a fluoroalkyl group; R Ｆ２ is -Rf ２ ｐ -R Ｆ -O ｑ - or a fluoroalkylene group; Rf １ each occurrence independently represents a C which may be substituted by one or more fluorine atoms; １－１６ is an alkyl group; Rf ２ C optionally substituted with one or more fluorine atoms １－６ is an alkylene group; R Ｆ is independently at each occurrence a divalent fluoropolyether group; p is 0 or 1; q, independently at each occurrence, is 0 or 1; R Ｓｉ is independently in each occurrence a hydroxyl group, a hydrolyzable group, a hydrogen atom, or a monovalent group containing a Si atom to which a monovalent organic group is bonded; At least one R Ｓｉ is a monovalent group containing a Si atom to which a hydroxyl group or a hydrolyzable group is bonded; X Ａ each independently represents a single bond or a divalent to decavalent organic group; α is an integer from 1 to 9; β is an integer from 1 to 9; Each γ is independently an integer from 1 to 9. The treatment method according to any one of claims 1 to 8, comprising at least one fluorine-containing silane compound represented by the formula:

10. An electronic device comprising a display panel, the display panel includes a glass substrate, a first layer covering a portion of a surface of the glass substrate, and a second layer covering another portion of the surface of the glass substrate; the first layer is a layer formed from a surface treatment agent containing a fluorine-containing silane compound, The first layer and the second layer have different compositions.

11. The electronic device of claim 10 , wherein the dynamic coefficient of friction of the surface of the first layer is less than the dynamic coefficient of friction of the surface of the second layer.

12. The electronic device according to claim 10 , wherein a maximum value of the dynamic friction coefficient of the surface of the display panel is 1.1 times or more a minimum value of the dynamic friction coefficient of the surface of the display panel.

13. 13. The electronic device according to claim 10, wherein the average water contact angle on the surface of the display panel is 108° or more.

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