WO2007145246A1 - 樹脂組成物、およびこれを用いてなる積層型光学部材 - Google Patents
樹脂組成物、およびこれを用いてなる積層型光学部材 Download PDFInfo
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- WO2007145246A1 WO2007145246A1 PCT/JP2007/061900 JP2007061900W WO2007145246A1 WO 2007145246 A1 WO2007145246 A1 WO 2007145246A1 JP 2007061900 W JP2007061900 W JP 2007061900W WO 2007145246 A1 WO2007145246 A1 WO 2007145246A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/006—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers provided for in C08G18/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/102—Esters of polyhydric alcohols or polyhydric phenols of dialcohols, e.g. ethylene glycol di(meth)acrylate or 1,4-butanediol dimethacrylate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/067—Polyurethanes; Polyureas
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
- C08F291/06—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00 on to oxygen-containing macromolecules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/671—Unsaturated compounds having only one group containing active hydrogen
- C08G18/672—Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1852—Manufacturing methods using mechanical means, e.g. ruling with diamond tool, moulding
Definitions
- the present invention relates to a resin composition that is excellent in fine shape transferability and the like and suitable for optical member applications, and an optical member using the same.
- a so-called prism type sheet as shown in FIG. 1 has been used as a condensing film for improving the brightness of a backlight member such as a mobile phone or a liquid crystal (for example, Patent Document 1). reference).
- two prism-type sheets are overlapped with a certain angle so that the luminance increases (for example, see Patent Document 2). .
- reference numeral 1 is a prismatic sheet
- 2 is an LED
- 3 is a light guide
- 4 is a reflection film
- 5 is a diffusion film
- 6 is an upward vertical prism sheet
- 7 is a downward horizontal sheet.
- a prism type sheet is shown.
- Patent Document 1 Japanese Patent No. 2739730
- Patent Document 2 Japanese Patent Fair 1-37801
- the prism-type sheet is a method of bending the emitted light geometrically, when the single prism-type sheet is used as the light collecting film as described above, the height of the unevenness increases, and as a result, The film thickness of the sheet is increased and the thickness is reduced.
- each prism functions to bend light, if there is a prism defect or foreign material, the light that passes through the prism becomes an extraordinary ray, causing display abnormalities such as bright spots. Furthermore, there was a problem that it was fragile and difficult to handle during assembly. On the other hand, the two-sheet method has a problem that the cost increases and the thickness increases. Therefore, there is a need for a light-collecting film that can solve these problems all at once.
- a diffractive condensing film is a light source plate that is bent about 60 degrees by a light guide plate.
- This is an optical film (for example, reference numeral 8 in FIG. 3) that has a function of bending the light of the user in the direction of the front of the user and is provided with a repetitive fine chevron shape.
- the condensing film in order to make the condensing film a diffractive condensing film rather than a prism-type sheet utilizing conventional geometrical optical refraction, a pitch width that is more triangular than the prism-type sheet, and As shown in Figure 4, the height needs to be reduced to about 1/10 or less.
- the conventional prism-type sheet has a triangular pitch width (period) of 50 m and an apex angle force of S63 °, whereas the diffractive condensing film has a triangular pitch width of 5 m,
- the apex angle is 45 ° (reference numeral 11 in FIG. 4 is a supporting base film).
- the material of the diffractive condensing film is required to have further fine shape transferability in addition to the characteristics required for a known prism sheet.
- the present invention provides a resin composition excellent in fine shape transferability, mold releasability from a mold, and adhesion to a supporting substrate, and a diffractive condensing film and a laminate type using the same
- An object is to provide an optical member such as an optical member.
- the present invention is characterized by the following items (1) to (6).
- R is hydrogen or a methyl group, and n is an integer of 1 to 10.
- a force prolatatone-modified (meth) ataretoy compound represented by the formula (I) and an equivalent ratio (NCOZOH) of the hydroxyl group in the general formula (I) and the general formula ( ⁇ ) is 0.
- a resin composition comprising (A) a urethane oligomer, (B) a bifunctional monomer, and (C) a polymerization initiator.
- the above (C) polymerization initiator is contained in an amount of 0.01 to 5 parts by weight per 100 parts by weight of the total amount of the (A) urethane oligomer and the (B) bifunctional monomer (1 ) To (3).
- the bifunctional monomer (B) is tetramethylene glycol ditalylate, dimethylol monotricyclodecane ditalylate, 1,9-nonanediol ditalylate, 1,6-hexanediol. It consists of ditalylate, neopentylglycol ditalylate, 2-butyl-2-ethyl-1,3-propanediol ditalylate, propylene oxide adduct diesterylate of bisphenol A, and force prolatatone modified tricyclodecane dimethanol ditalylate.
- Group power The resin composition according to any one of (1) to (4), wherein the composition is one or more selected.
- optical lens sheet for example, a reflection film
- FIG. 1 is a state diagram showing a backlight using one prism type sheet.
- FIG. 2 is a state diagram showing a backlight using two prism type sheets.
- FIG. 3 is a state diagram showing a backlight using a diffractive condensing film.
- FIG. 4 Comparison of chevron fine shapes in a diffractive condensing film and a prism type sheet.
- FIG. 5 is a view showing one embodiment of a manufacturing process of a diffraction type condensing film.
- FIG. 6 is a sectional view showing an example of a chevron repeating unit shape.
- FIG. 7 shows an example of a reflective film.
- FIG. 8 is a view showing an embodiment of a manufacturing process of a spacer for a liquid crystal display device.
- FIG. 9 is a diagram showing an embodiment of a manufacturing process of nanoimprint.
- FIG. 10 is a diagram showing an example of an alignment film for a liquid crystal display device.
- FIG. 11 is a cross-sectional view showing an embodiment of a laminated optical member.
- FIG. 12 is an enlarged photograph of a fine pattern formed on the viewing angle widening film produced in Example 9.
- FIG. 13 is a photograph showing the difference in the appearance of oblique force between the place where the viewing angle widening film produced in Example 9 is placed on the liquid crystal display and the place where it is not placed.
- the resin composition of the present invention is characterized by containing (A) a urethane oligomer, (B) a bifunctional monomer, and (C) a polymerization initiator as essential components.
- A a urethane oligomer
- B a bifunctional monomer
- C a polymerization initiator
- the (A) urethane oligomer is a diisocyanate having two isocyanate groups in one molecule.
- R is a linear or branched hydrocarbon group having 1 to 10 carbon atoms, and n is an integer of 1 to 20).
- R is hydrogen or a methyl group, and n is an integer of 1 to 10.
- the force prolatatone-modified (meth) atalylate compound represented by the formula (I) and the equivalent ratio (NCOZOH) of the hydroxyl group in the above general formula (I) and the general formula ( ⁇ ) is 0.8 to 1. It is preferable that it is obtained by blending so as to be 2.
- the description of “(meta) acrylate” t means acrylate or metatalylate.
- diisocyanate compound having two isocyanate groups in one molecule examples include tolylene diisocyanate, xylylene diisocyanate, diphenol methane diisocyanate, and hexamethylene diisocyanate. Cyanate, trimethylhexamethylene diisocyanate, tetramethylxylene diisocyanate, isophorone diisocyanate, norbornane diisocyanate, hydrogenated tolylene diisocyanate, hydrogenated xylylene diisocyanate, hydrogenated And diphenylmethane diisocyanate, which can be used alone or in combination.
- the urethane oligomers obtained have good yellowing and handling properties, so isophorone diisocyanate, trimethylhexamethylene diisocyanate, or tetramethylxylene diisocyanate. Is preferred.
- Examples of the hydroxyl group-containing methylene glycol compound represented by the general formula (I) include polyethylene glycol, polypropylene glycol, polytetramethylene glycol, methylpentanediol-modified polytetramethylene glycol, and propylene glycol.
- Examples include modified polytetramethylene glycol, ethylene glycol propylene glycol block copolymer, ethylene glycol-tetramethylene glycol copolymer, 1,6 hexanediol, 2-methyl-1,8 octanediol, 1,9 nonane diol , 3-Methyl-1,5 pentanediol, 1,5 pentanediol, 1,4 butanediol, etc., alone or mixed, and obtained by reacting with dimethyl carbonate compound and demethanol, average weight molecular weight 500-2 00 0 polycarbonate diol.
- polyethylene glycol, polypropylene glycol, or polytetramethylene glycol having an average weight molecular weight of 300 to 2,000 is preferable.
- polyethylene glycol More preferred is polyethylene glycol, polypropylene glycol, or polytetramethylene glycol of ⁇ 1,800.
- a high molecular weight substance and a low molecular weight substance of a hydroxyl group-containing methylene glycol compound may be used in combination.
- a urethane oligomer is synthesized only with polytetramethylene glycol (average weight molecular weight 850) in a certain system, the average weight molecular weight of the resulting urethane oligomer is 10,000.
- Polytetramethylene glycol (average weight molecular weight 850) If 50% by weight of diethylene glycol (average weight molecular weight 106) is added, the average weight molecular weight of the urethane oligomer is reduced to 7,000. In this way, a low molecular weight hydroxyl group-containing methylene glycol compound, for example, diethylene glycol, dipropylene glycol, 1,6 hexanediol, etc., is added in a small amount to contain a high molecular weight hydroxyl group. While maintaining the flexibility of the methylene glycol compound, the average weight molecular weight of the urethane oligomer can be reduced.
- a low molecular weight hydroxyl group-containing methylene glycol compound may be combined with a high molecular weight hydroxyl group-containing methylene glycol compound such as polyethylene glycol (average weight molecular weight 2,000), polypropylene. It is possible to increase the high molecular weight of urethane oligomers by covering with lopyrendarycol (average weight molecular weight 2,000), polytetramethylene glycol (average weight molecular weight 2,000), and the like.
- the force-prolatatone-modified (meth) ataretoy compound represented by the above general formula ( ⁇ ) introduces one (meth) acrylic double bond having radical polymerizability into the polycarba-latatotone oligomer.
- Unsaturated fatty acid hydroxyalkyl ester modified ⁇ -strength prolatatone for example, hydroxyethyl (meth) atalylate power prolatatone with lmol, hydroxyethyl (meth) atalylate power prolatatone with 2 mol Potato, hydroxyethyl (meth) atalylate power Prolatataton with 3 mol Potato, hydroxyethyl (meth) atalylate power Prolatathone with 5 mol Additive, hydroxyethyl (meth) atalylate power Prolatathone with lOmol Considering that a moderately flexible diffractive light-collecting film can be obtained, hydroxystilde ( Data) Atari rate force Purorataton 2mol Tsukeka ⁇ or hydroxy E chill (meth) Atari rate force Purorataton 3mol Tsukeka ⁇ , is more preferable. Further, 2-hydroxypropyl (meth) acrylate, 2-
- a known polymerization inhibitor or catalyst may be added in addition to the above raw material components.
- the polymerization inhibitor known polymerization inhibitors can be used, and examples thereof include p-methoxyquinone, p-methoxyphenol, and p-t-butylcatechol.
- the catalyst a known catalyst used for urethane oligomer synthesis can be used, and examples thereof include dibutyltin dilaurate, dibutyltin diacetate, and triethylenediamine.
- a mercabtan compound, thioglycol, carbon tetrachloride, a-methylstyrene dimer, or the like can be added as necessary as a molecular weight modifier.
- the average weight molecular weight Mw of the (A) urethane oligomer is preferably a force S in the range of 2,000 to 20,000, more preferably a force S in the range of 4,000-18,000. Is particularly preferably in the range of 6, 00 0-16, 000.
- the average weight molecular weight in the present invention is measured by gel permeation chromatography (GPC) using a standard polystyrene calibration curve, and the measurement conditions are as follows.
- the diisocyanate compound While stirring at ⁇ 75 ° C., the diisocyanate compound is uniformly added dropwise to carry out the reaction. When the reaction is completed for about 5 hours after completion of the dropwise addition, IR measurement is performed to confirm that the isocyanate has disappeared, and the reaction is completed.
- the bifunctional monomer (B) used in the resin composition of the present invention is not particularly limited as long as it functions as a reactive diluent for the urethane oligomer (A).
- tetramethylene glycol Ludiatalylate dimethylol monotricyclodecane ditalylate, 1,9-nonanediol, 1,6-hexanediol ditalylate, neopentylglycol ditalylate, 2-butyl-2-ethylyl 1,3 propanediol
- diatalylate propylene oxide adduct diatalylate of bisphenol A, force prolatatone-modified tricyclodecane dimethanol diatalate, and the like. It is also possible to use monofunctional and trifunctional or higher monomers in consideration of releasability from the mold, adhesion to the base film, and workability.
- the blending ratio of the (A) urethane oligomer and the (B) bifunctional monomer is preferably in the range of 1: 9 to 9: 1 by weight. 2: 8 to 8: A range of 2 is more preferable, and a range of 3: 7 to 7: 3 is particularly preferable.
- the (C) polymerization initiator used in the resin composition of the present invention a known photoinitiator or radical polymerization (thermal polymerization) initiator can be used.
- the photoinitiator those which absorb and activate the ultraviolet rays of an industrial UV irradiation device efficiently and do not yellow the cured resin are preferable.
- the radical polymerization initiator is not particularly limited.
- the (C) polymerization initiator is preferably contained in an amount of 0.01 to 5 parts by weight based on 100 parts by weight of the total amount of the (A) urethane oligomer and the (B) bifunctional monomer. More preferably 0.1 to 3 parts by weight are contained.
- (C) Polymerization initiator power If the amount is less than 0.01 parts by weight, the polymerization reaction may not proceed sufficiently. It is not preferable.
- a mercabtan compound, thiodaricol, carbon tetrachloride, a -methylstyrene dimer, or the like can be added to the rosin composition of the present invention as a molecular weight regulator, if necessary.
- the resin composition of the present invention has a phenolic and thioether-based antioxidant, an aliphatic alcohol, and a fatty acid ester from the viewpoints of prevention of deterioration, thermal stability, moldability and processability.
- the resin composition of the present invention can be suitably used as a material for a diffractive condensing film.
- the diffraction type condensing film of the present invention has a fine shape pattern formed by molding and curing the resin composition of the present invention on at least one surface of a support base film.
- a mold 9 on which a desired fine pattern is formed is filled with the resin composition 10 of the present invention, and a light-transmitting supporting base film 1 is formed thereon.
- the resin composition After superimposing 1 and spreading and flattening them with a roller 12 or the like, the resin composition is irradiated with ultraviolet rays through the support base film 11 and cured. After the curing is completed, the diffractive light condensing film 13 can be obtained by releasing the cured resin composition integrally formed with the support base film 11 from the mold 9.
- a laminated optical member can be produced using the resin composition of the present invention, and the production method thereof is not particularly limited.
- the resin composition of the present invention is filled in a mold in which the pattern is formed, and a light-transmitting supporting base film is superposed on the mold, and these are stretched and flattened with an upper force roller, etc.
- the resin composition is cured by irradiating the resin composition with ultraviolet rays through the supporting substrate film (first resin composition layer). After curing, the cured resin composition having the supporting base film integrated with the mold is released.
- the resin composition of the present invention is applied to the pattern forming surface of the cured resin composition, and a light-transmitting film subjected to a release treatment is superimposed thereon, and the upper force is also increased by a roller or the like.
- the resin composition is irradiated with ultraviolet rays through a film to be cured (second resin composition layer).
- the film can be peeled off to obtain a laminated optical member (see, for example, FIG. 11, reference numeral 20 is a supporting base film, 21 is a mold transfer layer (first resin composition layer), Reference numeral 22 denotes an overcoat layer (second resin composition layer)).
- a light-transmitting support base film coated uniformly with the resin composition of the present invention is superimposed on the pattern surface of the cured resin composition, and the upper force is also increased by a roller or the like. After these are laminated and integrated, the resin composition is irradiated with ultraviolet rays through a film and cured to obtain a laminated optical member. Furthermore, another pattern is formed on the laminated and flattened surface.
- the material of the mold is not particularly limited, but examples thereof include aluminum, nickel, copper, and alloys thereof.
- the fine shape pattern formed on the mold is not particularly limited as long as it is appropriately determined according to the type and characteristics of the desired optical member.
- the cross section has a mountain shape (triangle) shape, Uneven shape, staircase shape, trapezoid shape, positive A repeating pattern having a repeating unit such as a chord wave shape can be given.
- the size of the repeating unit is not particularly limited as long as it is appropriately determined according to the type and characteristics of the desired optical member. It is preferable that the horizontal and vertical dimensions of the base film surface be 10 ⁇ m or less.
- the lower limit is preferably 3 m or more in the horizontal direction and 2.5 m or more in the vertical direction.
- FIG. 6 is a diagram showing the horizontal and vertical directions when the cross-sectional shape of the repeating unit is a mountain shape.
- the apex angle (angle ⁇ + angle j8 in Fig. 6) is 45 ° or more and 60 ° or less in Fig. 6 (X is 20 ° or less, and angle 13 is 25 ° or more) More preferably, it is 40 ° or less.
- the light-transmitting support base film is not particularly limited as long as it has a light-transmitting property.
- a polyester resin film such as polyethylene terephthalate, an acrylic resin film, a polycarbonate resin film, Transparent synthetic resin films such as vinyl chloride resin film, polymethacrylamide resin film, and polyester resin film can be used.
- the thickness of the supporting base film is preferably 25 to 200 111 m, more preferably 50 to 150 m. If the thickness of the supporting base film is too thick, the light-collecting film becomes heavy, and if it is too thin, warping tends to occur during curing.
- a radical polymerization initiator is used as the polymerization initiator (C)
- the light source used for the ultraviolet irradiation a chemical lamp, a low-pressure mercury lamp, a high-pressure mercury lamp, a carbon arc, a xenon lamp, or the like can be used.
- the irradiation atmosphere may be in the atmosphere or the like, and is not particularly limited.
- the resin composition of the present invention is excellent in fine shape transferability, and its shape transfer limit is not less than Inm in the horizontal direction and not less than Inm in the vertical direction. Therefore, the resin composition of the present invention includes, for example, a reflective film (FIG. 7), a spacer for a liquid crystal display device (FIG. 8, reference numeral 14 is a mold for a spacer for liquid crystal display, and 15 is a glass. , 16 indicates an adhesive), nanoimprint (Fig. 9, reference numeral 17 indicates a nanoimprint mold), alignment film for liquid crystal display devices (Fig.
- reference numeral 18 indicates liquid crystal molecules
- 19 indicates alignment film for liquid crystal display
- Materials for various optical members such as waveguide clad materials, Fresnel lenses, lenticular lens sheets, Dich users, moth-eye non-reflective structures, etc. Can be used as a fee.
- the resin composition of the present invention is excellent in optical properties, it can be used for fine parts, devices, and the like.
- optical components for inkjet microlenses, optical wiring, etc.
- the resin composition of the present invention can be a laminated optical member in which two or more layers made of the resin composition are laminated.
- a viewing angle widening film, a light diffusion sheet It can be used for viewing angle compensation films, antiglare antireflection films, reflection type projection screens, and the like.
- Urethane oligomer 2 (UA2) was synthesized in the same manner as U A1 except that 0 g of polytetramethylene glycol, 828 g of unsaturated fatty acid hydroxyalkyl ester modified ⁇ -strength prolatatone and 208 g of isophorone diisocyanate were used. Its weight average molecular weight was 1,000. [0045] (Examples 1 to 3 and Comparative Examples 1 to 7)
- Diffraction type condensing film mold material Ni-P, pitch-shaped pitch 5 / ⁇ ⁇ , height 5.7 / ⁇ ⁇ , apex angle 45 degrees, lattice pattern size 2cm vertical, horizontal lcm Toshiba Machine Co., Ltd. ) Small molds
- a PET film trade name A4300, manufactured by Toyobo Co., Ltd., film thickness 75 / After zm
- the exposure was performed using an ultra-high pressure mercury lamp (manufactured by Usio Electric Co., Ltd., model USH-3502MA, illuminance 16 mWZcm 2 ) under the condition of an integrated exposure amount 2, OOOmjZcm 2 .
- the cured resin composition with a supporting base film was peeled from the mold to obtain a diffractive condensing film.
- the resin composition of Comparative Example 1 had a high viscosity and was difficult to handle, it was difficult to produce a diffractive condensing film.
- the diffraction-type condensing film in which the resin composition strength of Comparative Example 2 was also produced cracks when the mold force was peeled off, and the following evaluation could not be performed.
- Mold force It evaluated by confirming the state when the diffraction type condensing film was peeled off. The evaluation criteria are as follows. The results are shown in Table 1.
- EA Epoxy acrylate oligomer (Hitaroid 7660-1 * manufactured by Hitachi Chemical Co., Ltd. * Since it was a solvent-type material, it was removed by an evaporator and used)
- TMP—A Trimethylolpropane tritalylate (Trifunctional monomer manufactured by Kyoeisha Co., Ltd.)
- the diffractive condensing film produced using the resin compositions of Examples 1 to 3 has a fine shape transfer property, a release property from the mold, and an adhesion property to the supporting substrate film. It is clear that all of these are excellent.
- the cured resin composition with the supporting base film is peeled from the mold, and “embedded layer” having the composition shown in Table 2 below is formed on the pattern forming surface of the cured resin composition.
- “embedded layer” having the composition shown in Table 2 below is formed on the pattern forming surface of the cured resin composition.
- Each of the above resin compositions is applied, a PET film similar to the above is overlaid thereon, and a roller is run on the film to make it flat, and then exposure is performed in the same manner as described above to perform the resin for embedded layers.
- the composition was cured (resin composition pattern embedding layer) to obtain a laminated optical member.
- the fine shape transfer property, the mold releasability, and the adhesion to the substrate were evaluated in the same manner as the above-described diffraction type light condensing film. Furthermore, the laminateability (bubble entrainment and surface flatness) of the resin composition pattern layer and the embedded layer was visually observed and evaluated. The evaluation criteria were ⁇ when there was no problem with both bubble entrainment and surface flatness, ⁇ when there was a problem with either, and X when there was a problem with both. The results are shown in Table 2.
- BP-4PA is bisphenol A propylene oxide adduct acrylate.
- a field expansion film having a fine pattern shown in FIG. 12 is obtained by transferring and forming a pattern on a 50 m-thick PET film in the same manner as in Example 1 using the resin composition prepared in Example 2.
- Got. When the completed field-of-view-enhancement film is placed on a liquid crystal display and observed from an oblique direction, as shown in Fig. 13, where the film is not installed, the gradation is reversed, whereas where the film is installed. Can be seen normally, and the viewing angle is enlarged.
- the resin composition prepared in Example 3 was applied to one side of a base material 11 (non-alkali glass substrate) having a thickness of 0.7 / zm, dried, and a resin layer having a thickness of 3 m.
- a Si mold 17 size 10 mm X 10 mm having a pattern in which holes with a hole diameter of 0 and a depth of 1 are arranged two-dimensionally at equal intervals of 1.
- the resin layer 10 is exposed and cured from the 11 side under the same conditions as in Example 1, and then the mold is removed, so that a nanopillar pattern with a diameter of 0.2 m and a height of 1.4 m is formed on the entire surface of the substrate.
- a nanopillar pattern with a diameter of 0.2 m and a height of 1.4 m is formed on the entire surface of the substrate.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Engineering & Computer Science (AREA)
- Macromonomer-Based Addition Polymer (AREA)
- Laminated Bodies (AREA)
- Polymerisation Methods In General (AREA)
- Optical Elements Other Than Lenses (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/308,407 US20100240840A1 (en) | 2006-06-14 | 2007-06-13 | Resin Composition and multilayer optical member using the same |
JP2008521235A JPWO2007145246A1 (ja) | 2006-06-14 | 2007-06-13 | 樹脂組成物、およびこれを用いてなる積層型光学部材 |
CN200780021769XA CN101466749B (zh) | 2006-06-14 | 2007-06-13 | 树脂组合物及使用其形成的层叠型光学部件 |
KR1020087030102A KR101166602B1 (ko) | 2006-06-14 | 2007-06-13 | 수지 조성물, 및 이것을 이용하여 이루어지는 적층형 광학부재 |
Applications Claiming Priority (2)
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JP2006-165035 | 2006-06-14 | ||
JP2006165035 | 2006-06-14 |
Publications (1)
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WO2007145246A1 true WO2007145246A1 (ja) | 2007-12-21 |
Family
ID=38831760
Family Applications (1)
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PCT/JP2007/061900 WO2007145246A1 (ja) | 2006-06-14 | 2007-06-13 | 樹脂組成物、およびこれを用いてなる積層型光学部材 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100240840A1 (ja) |
JP (1) | JPWO2007145246A1 (ja) |
KR (1) | KR101166602B1 (ja) |
CN (1) | CN101466749B (ja) |
TW (1) | TW200804439A (ja) |
WO (1) | WO2007145246A1 (ja) |
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WO2010119735A1 (ja) * | 2009-04-13 | 2010-10-21 | 日立マクセル株式会社 | 偏光分離素子およびその製造方法 |
JP2011252144A (ja) * | 2010-04-23 | 2011-12-15 | Dongwoo Fine-Chem Co Ltd | 樹脂型導光板用組成物、これで形成される導光板を含むバックライトユニット及び該バックライトユニットを備える液晶表示装置 |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2009062433A (ja) * | 2007-09-05 | 2009-03-26 | Bridgestone Corp | インプリント成形用組成物及びそれを用いた成形物 |
JP2009209245A (ja) * | 2008-03-03 | 2009-09-17 | Bridgestone Corp | インプリント成形用組成物 |
US10365413B2 (en) | 2009-02-14 | 2019-07-30 | Luxexcel Holding B.V. | Device for directing light beams, illustration device, method for producing a device and an illustration device |
JP2012518190A (ja) * | 2009-02-14 | 2012-08-09 | ルクスエクセル ホールディング ビーヴィ | 光ビームを方向付けるための装置、描写装置、装置および描写装置を作成するための方法 |
WO2010119735A1 (ja) * | 2009-04-13 | 2010-10-21 | 日立マクセル株式会社 | 偏光分離素子およびその製造方法 |
CN102317824A (zh) * | 2009-04-13 | 2012-01-11 | 日立麦克赛尔株式会社 | 偏振光分离元件及其制造方法 |
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WO2013176146A1 (ja) * | 2012-05-24 | 2013-11-28 | 旭硝子株式会社 | 光学部材の製造方法、光学部材、保護フィルム付き光学部材、及び光学パネルの製造方法 |
JPWO2013176146A1 (ja) * | 2012-05-24 | 2016-01-14 | 旭硝子株式会社 | 光学部材の製造方法、光学部材、保護フィルム付き光学部材、及び光学パネルの製造方法 |
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WO2023068234A1 (ja) * | 2021-10-18 | 2023-04-27 | 東洋合成工業株式会社 | インプリント用硬化性組成物、パターン形成方法及び部品の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
KR101166602B1 (ko) | 2012-07-18 |
JPWO2007145246A1 (ja) | 2009-11-05 |
TW200804439A (en) | 2008-01-16 |
KR20090017583A (ko) | 2009-02-18 |
CN101466749A (zh) | 2009-06-24 |
US20100240840A1 (en) | 2010-09-23 |
CN101466749B (zh) | 2011-06-08 |
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