WO2020096285A1 - 폴리아미드 수지, 및 이를 이용한 고분자 필름 및 수지 적층체 - Google Patents
폴리아미드 수지, 및 이를 이용한 고분자 필름 및 수지 적층체 Download PDFInfo
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- WO2020096285A1 WO2020096285A1 PCT/KR2019/014716 KR2019014716W WO2020096285A1 WO 2020096285 A1 WO2020096285 A1 WO 2020096285A1 KR 2019014716 W KR2019014716 W KR 2019014716W WO 2020096285 A1 WO2020096285 A1 WO 2020096285A1
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- polyamide resin
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- 0 *C(Cc1cccc(C(*)=O)c1)=O Chemical compound *C(Cc1cccc(C(*)=O)c1)=O 0.000 description 3
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
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- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
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- 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
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/26—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
Definitions
- the present invention relates to a polyamide resin that suppresses excessive growth of the crystalline polymer chain length and improves transparency while securing mechanical properties of an appropriate level or higher, and a polymer film and resin laminate using the same.
- Aromatic polyimide resins are mostly polymers having an amorphous structure, and exhibit excellent heat resistance, chemical resistance, electrical properties, and dimensional stability due to a rigid chain structure. These polyimide resins are widely used as electrical / electronic materials.
- the polyimide resin has a dark brown color due to the formation of the charge transfer complex (CTC) of Pi-electrons present in the imide chain, and thus it is difficult to secure transparency.
- CTC charge transfer complex
- the surface is easily scratched It has a very weak scratch resistance.
- the amide repeat unit and isop derived from terephthaloyl chloride during polyamide polymerization due to the difference in solubility and reactivity (stereo hindrance) and reaction rate of terephthaloyl chloride or isophthaloyl chloride used in the synthesis of polyamide resins
- the amide repeat unit derived from thaloyl chloride is difficult to polymerize ideally and alternatively without forming a block.
- the polymerization reaction proceeds in a state in which the monomer used for synthesizing the polyamide resin is dissolved in a solvent, the molecular weight of the final synthesized polyamide resin is secured to a sufficient level due to deterioration by moisture or hybridization with the solvent. it's difficult.
- the present invention relates to a polyamide resin that suppresses excessive growth of the crystalline polymer chain length and improves transparency while ensuring mechanical properties of an appropriate level or higher.
- the present invention is to provide a polymer film and a resin laminate using the polyamide resin.
- a polyamide resin having an average particle diameter of 8.0 nm or less of individual crystals measured by an incineration X-ray scattering apparatus is provided.
- a polymer film containing the above-described polyamide resin is provided.
- a substrate including a polyamide resin having an average particle diameter of 8.0 nm or less of individual crystals measured by an incineration X-ray scattering apparatus; And a hard coating layer formed on at least one surface of the substrate.
- substitution means that another functional group is bonded instead of a hydrogen atom in the compound, and the position to be substituted is not limited to a position where the hydrogen atom is substituted, that is, a position where the substituent is substitutable, and when two or more are substituted , 2 or more substituents may be the same or different from each other.
- substituted or unsubstituted refers to deuterium; Halogen group; Cyano group; Nitro group; Hydroxy group; Carbonyl group; Ester groups; Imide group; Amide group; Primary amino group; Carboxy group; Sulfonic acid group; Sulfonamide groups; Phosphine oxide group; Alkoxy groups; Aryloxy group; Alkyl thioxy group; Arylthioxy group; Alkyl sulfoxy group; Aryl sulfoxyl group; Silyl group; Boron group; Alkyl groups; Haloalkyl group; Cycloalkyl group; Alkenyl group; Aryl group; Aralkyl group; Ar alkenyl group; Alkyl aryl groups; Alkoxysilylalkyl groups; Arylphosphine group; Or substituted or unsubstituted with one or more substituents selected from the group consisting of heterocyclic groups containing one or more of N, O and S atoms,
- a substituent having two or more substituents may be a biphenyl group. That is, the biphenyl group may be an aryl group or may be interpreted as a substituent to which two phenyl groups are connected.
- a haloalkyl group can be used as the substituent, and examples of the haloalkyl group include a trifluoromethyl group.
- the alkyl group is a monovalent functional group derived from alkane, and may be a straight chain or a branched chain, and the carbon number of the straight chain alkyl group is not particularly limited, but is preferably 1 to 20.
- the branched chain alkyl group has 3 to 20 carbon atoms.
- alkyl group examples include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, tert-butyl, sec-butyl, 1-methyl-butyl, 1-ethyl-butyl, pentyl, n -Pentyl, isopentyl, neopentyl, tert-pentyl, hexyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, 4-methyl-2-pentyl, 3,3-dimethylbutyl, 2-ethylbutyl, heptyl , n-heptyl, 1-methylhexyl, octyl, n-octyl, tert-octyl, 1-methylheptyl, 2-ethylhexyl, 2-propylpentyl, n-non
- the aryl group is a monovalent functional group derived from arenes, and is not particularly limited, but is preferably 6 to 20 carbon atoms, and may be a monocyclic aryl group or a polycyclic aryl group.
- the aryl group may be a phenyl group, a biphenyl group, a terphenyl group, etc., as a monocyclic aryl group, but is not limited thereto.
- the polycyclic aryl group may be a naphthyl group, anthracenyl group, phenanthryl group, pyrenyl group, perylenyl group, chrysenyl group, fluorenyl group, and the like, but is not limited thereto.
- the aryl group may be substituted or unsubstituted.
- the arylene groups are divalent functional groups derived from arenes, and the descriptions of the aryl groups described above may be applied except that they are divalent functional groups.
- it may be a phenylene group, biphenylene group, terphenylene group, naphthalene group, fluorenyl group, pyrenyl group, phenanthrenyl group, perylene group, tetrasenyl group, anthracenyl group, and the like.
- the arylene group may be substituted or unsubstituted.
- the heteroaryl group includes one or more non-carbon atoms, heteroatoms, and specifically, the heteroatoms may include one or more atoms selected from the group consisting of O, N, Se, and S.
- the number of carbon atoms is not particularly limited, and preferably 4 to 20 carbon atoms, and the heteroaryl group may be monocyclic or polycyclic.
- heterocyclic group examples include thiophene group, furanyl group, pyrrol group, imidazolyl group, thiazolyl group, oxazolyl group, oxadiazolyl group, pyridyl group, bipyridyl group, pyrimidyl group, triazinyl group, tria Jolyl group, acridil group, pyridazinyl group, pyrazinyl group, quinolinyl group, quinazolinyl group, quinoxalinyl group, phthalazinyl group, pyridopyrimidyl group, pyridopyrazinyl group, pyrazino pyrazinyl group , Isoquinolinyl group, indolyl group, carbazolyl group, benzoxazolyl group, benzimidazolyl group, benzothiazolyl group, benzocarbazolyl group, benzothiophene group, di
- the heteroarylene group has 2 to 20 carbon atoms, or 2 to 10 carbon atoms, or 6 to 20 carbon atoms.
- the heteroaryl group containing O, N or S is an arylene group, and the description of the above-described heteroaryl group can be applied, except that it is a divalent functional group.
- the heteroarylene group may be substituted or unsubstituted.
- halogen examples include fluorine, chlorine, bromine or iodine.
- a polyamide resin having an average particle diameter of 8.0 nm or less of an individual crystal measured by an incineration X-ray scattering apparatus may be provided.
- the present inventors have a relatively small size due to slow growth of individual crystals constituting a crystal structure while having excellent mechanical properties of the crystalline polymer, polyamide resin having an average particle diameter of 8.0 nm or less as described above. According to the experiment, it was confirmed through experiments that it has a significantly low haze value and yellowness, and has high flexibility and bending durability.
- the polyamide resin may satisfy an average particle diameter of 8.0 nm or less of individual crystals measured by an incineration X-ray scattering apparatus.
- the polyamide resin may include a number of individual crystals.
- the average particle diameter of the individual crystals contained in the polyamide resin can be determined through a method for calculating the average particle diameter of all crystals included in the polyamide resin and dividing the sum of these particle diameters by the number of individual crystals.
- the average particle diameter of the individual crystals is a solid model of a scattering pattern obtained by irradiating X-rays having an energy of 10 KeV to 20 KeV, or 10 KeV to 14 KeV, or 16 KeV to 20 KeV in an incineration X-ray scattering apparatus. model) and can be measured through analytical equipment.
- irradiated X-ray for example, a method of irradiating X-rays having an energy of 10 KeV to 14 KeV and X-rays having an energy of 16 KeV to 20 KeV may be used.
- the scattering pattern which is data obtained from the incineration X-ray scattering apparatus, may be a result measured by irradiating X-rays of 10 KeV to 20 KeV energy using an incineration X-ray scattering apparatus at a temperature of 20 ° C to 30 ° C.
- an imaging plate, a position-sensitive detector (PSPC), or the like can be used as the detector in the incineration X-ray scattering apparatus.
- an average particle size analysis of the individual crystals may be performed through analysis equipment separately installed inside or outside the incineration X-ray scattering apparatus.
- An example of the incineration X-ray scattering device may include a PLS 9A beamline, and an example of the analysis device may include a computer program NIST SANS package.
- the average particle diameter of the individual crystals is a plot of the wave number q (unit: ⁇ -1 ) and scattering intensity I (unit: au) obtained by fitting the shape of the individual crystals contained in the sample to a solid sphere model.
- the diameter distribution curve of crystals obtained by convolution with Schulz-Zimm distribution it can be obtained through calculation of a computer program (NIST SANS package).
- the crystal may be a group of individual crystals having a particle diameter of 0.1 nm to 15 nm, and the individual crystals included in the group may have an average particle diameter of 0.8 nm or less. More specifically, 95% or 99% of the individual crystals included in the group may have a particle diameter of 0.8 nm or less.
- the majority of the individual crystals are 0.8 nm or less, or 7 nm or less, or 0.1 nm to 8.0 nm, or 0.1 nm to 7 nm, or 1 nm to 8 nm, or 1 nm to 7 nm, or 3 nm to 8
- the average particle size of individual crystals may also satisfy the above-described range.
- the average particle diameter of the individual crystals measured by the small-angle X-ray scattering apparatus is 8.0 nm or less, or 7 nm or less, or 0.1 nm to 8.0 nm, or 0.1 nm to 7 nm, or 1 nm to 8 nm, Or 1 nm to 7 nm, or 3 nm to 8 nm, or 3 nm to 7 nm, or 5 nm to 6.8 nm.
- the polyamide resin is a plurality of individual crystals (1) and an amorphous polymer present between individual crystals. Consists of a chain (3), the particle size (2) can be defined for the individual crystal.
- polyamide resin chains may be formed in a bundle.
- the length of the individual crystals may grow through the overlap between the crystalline polymer blocks contained in the polyamide resin, and it is difficult to specifically specify the shape of the overlapped individual crystals, but it is approximately spherical due to three-dimensional growth. It can be considered to have a structure, a lamellar structure by two-dimensional growth, or an intermediate structure between three and two dimensions.
- the polyamide resin may have a dimension number of individual crystals measured by an incineration X-ray scattering apparatus of 3.0 or more, or 3.0 to 4.0.
- the number of dimensions of the individual crystals of the polyamide resin is a spherical scattering pattern obtained by irradiating X-rays having an energy of 10 KeV to 20 KeV, or 10 KeV to 14 KeV, or 16 KeV to 20 KeV in an incineration X-ray scattering apparatus. It can be fitted with a solid sphere model and measured through analytical equipment.
- the incineration X-ray scattering apparatus and the analysis contents thereof include the contents described above in the average particle diameter of the individual crystals.
- the polyamide resin may further include an amorphous polymer chain present between individual crystals having an average particle diameter of 8.0 nm or less. More specifically, referring to the crystal structure of the polyamide resin of one embodiment described in FIG. 1 below, the polyamide resin is a plurality of individual crystals (1) and an amorphous polymer present between individual crystals. It may be composed of a chain (3).
- the polyamide resin may satisfy an average particle diameter of individual crystals measured by an incineration X-ray scattering device of 8.0 nm or less.
- the distance between individual crystals having an average particle diameter of 8.0 nm or less may be 0.1 nm to 100 nm, or 1 nm to 100 nm, or 30 nm to 100 nm.
- the distance between the individual crystals having an average particle diameter of 8.0 nm or less can also be measured by a small angle X-ray scattering apparatus.
- examples of specific components of individual crystals having an average particle diameter of 8.0 nm or less as measured by an incineration X-ray scattering apparatus are not particularly limited, and various aromatic amide repeat units used in the production of crystalline polyamide resins are limited. Can be applied without.
- An example of a component of an individual crystal having an average particle diameter of 8.0 nm or less measured by the incineration X-ray scattering apparatus is a first aromatic amide repeating unit derived from a combination of a 1,4-aromatic diacyl compound and an aromatic diamine compound. It can contain. Polymer chains composed of the first aromatic amide repeating units may be bundled to form individual crystals having an average particle diameter of 8.0 nm or less.
- 1,4-aromatic diacyl compound examples include terephthaloyl chloride or terephthalic acid.
- aromatic diamine monomer 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone , 4,4 '-(9-fluorenylidene) dianiline (4,4'-(9-fluorenylidene) dianiline), bis (4- (4-aminophenoxy) phenyl) sulfone (bis (4- ( 4-aminophenoxy) phenyl) sulfone), 2,2 ', 5,5'-tetrachlorobenzidine (2,2', 5,5'-tetrachlorobenzidine (2,2',
- the 1,4-aromatic diacyl compound includes terephthaloyl chloride, or terephthalic acid
- the aromatic diamine compound is 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine It may include.
- the individual crystals having an average particle diameter of 8.0 nm or less may include a repeating unit represented by the following Chemical Formula 1, or a first polyamide segment including a block composed of the same.
- Ar 1 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms.
- Ar 1 is an arylene group having 6 to 20 carbon atoms substituted with one or more substituents selected from the group consisting of an alkyl group, a haloalkyl group, and an amino group, and more preferably 2,2'-bis (trifluoro Methyl) -4,4'-biphenylene group.
- Ar 1 may be a divalent organic functional group derived from an aromatic diamine monomer, and a specific example of the aromatic diamine monomer is 2,2'-bis (trifluoromethyl) -4,4 '-Biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine (2,2'-dimethyl-4,4 '-diaminobenzidine), 4,4'-diaminodiphenyl sulfone, 4,4'-(9-fluorenylidene) dianiline (4,4 '-(9-fluorenylidene dianiline), bis (4- (4-aminophenoxy) phenyl) bis (4- (4-aminophenoxy) phenyl) sulfone), 2,2 ', 5,5'-tetrachlorobenzidine (2,2 '), 2,2 '
- the aromatic diamine monomer is 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB ) Or 2,2'-dimethyl-4,4'-diaminobenzidine.
- the first polyamide segment may include a repeating unit represented by Chemical Formula 1 or a block composed of a repeating unit represented by Chemical Formula 1.
- a specific example of the repeating unit represented by Chemical Formula 1 may include a repeating unit represented by Chemical Formula 1-1.
- the repeating unit represented by Formula 1 is an amide repeating unit derived from a combination of a 1,4-aromatic diacyl compound and an aromatic diamine compound, specifically an amide formed by amidation reaction of terephthaloyl chloride or terephthalic acid with an aromatic diamine monomer It is a repeating unit, and due to the linear molecular structure, chain packing and alignment in the polymer can be kept constant, and the surface hardness and mechanical properties of the polyamide film can be improved.
- 1,4-aromatic diacyl compound examples include terephthaloyl chloride or terephthalic acid.
- aromatic diamine monomer 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone , 4,4 '-(9-fluorenylidene) dianiline (4,4'-(9-fluorenylidene) dianiline), bis (4- (4-aminophenoxy) phenyl) sulfone (bis (4- ( 4-aminophenoxy) phenyl) sulfone), 2,2 ', 5,5'-tetrachlorobenzidine (2,2', 5,5'-tetrachlorobenzidine (2,2',
- the 1,4-aromatic diacyl compound includes terephthaloyl chloride, or terephthalic acid
- the aromatic diamine compound is 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine It may include.
- the number average molecular weight of the first polyamide segment is 100 g / mol to 5000 g / mol, or 100 g / mol to 3000 g / mol, or 100 g / mol to 2500 g / mol, or 100 g / mol to 2450 g / mol.
- the number average molecular weight of the first polyamide segment is increased to more than 5000 g / mol, the crystallinity of the polyamide resin may increase as the chain of the first polyamide segment becomes too long, thereby increasing It can be difficult to ensure transparency by having a haze value.
- the number average molecular weight of the first polyamide segment is not limited to an example of a measurement method, but can be confirmed, for example, through SAXS (Small-angle X-ray scattering) analysis.
- the first polyamide segment may be represented by Formula 5 below.
- Ar 1 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, and a is an integer of 1 to 5.
- Chemical Formula 5 when a is 1, Chemical Formula 5 may be a repeating unit represented by Chemical Formula 1.
- Chemical Formula 5 when a is 2 to 5, Chemical Formula 5 may be a block composed of repeating units represented by Chemical Formula 1.
- the description of Ar 1 includes the contents described in Formula 1 above.
- the proportion of repeating units represented by Formula 1 is 40 mol% to 95 mol%, 50 mol% to 95 mol%, or 60 mol% to 95 mol%, Or 70 mol% to 95 mol%, or 50 mol% to 90 mol%, or 50 mol% to 85 mol%, or 60 mol% to 85 mol%, or 70 mol% to 85 mol%, or 80 mol% to 85 mol%, or 82 mol% to 85 mol%.
- the polyamide resin in which the repeating unit represented by Chemical Formula 1 is contained in the above-described content can secure a sufficient level of molecular weight to secure excellent mechanical properties.
- examples of specific components of the amorphous polymer chain present between individual crystals having an average particle diameter of 8.0 nm or less are not particularly limited, and various aromatic amides used in the production of amorphous polyamide resin
- the repeating unit can be applied without limitation.
- An example of an amorphous polymer chain component present between individual crystals having an average particle diameter of 8.0 nm or less as measured by the incineration X-ray scattering device is derived from a combination of a 1,2-aromatic diacyl compound and an aromatic diamine compound Second aromatic amide repeating unit, or a third aromatic amide repeating unit derived from a combination of a 1,3-aromatic diacyl compound and an aromatic diamine compound, or mixtures thereof.
- Polymer chains composed of the above-described second aromatic amide repeating unit or third aromatic amide repeating unit may implement amorphous properties.
- 1,2-aromatic diacyl compound examples include phthaloyl chloride or phthalic acid.
- specific examples of the 1,3-aromatic diacyl compound include isophthaloyl chloride or isophthalic acid.
- aromatic diamine monomer 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine), 2, 2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone, 4 , 4 '-(9-fluorenylidene) dianiline (4,4'-(9-fluorenylidene) dianiline), bis (4- (4-aminophenoxy) phenyl) sulfone (bis (4- (4- aminophenoxy) phenyl) sulfone), 2,2 ', 5,5'--
- the 1,2-aromatic diacyl compound comprises phthaloyl chloride, or phthalic acid
- the 1,3-aromatic diacyl compound comprises isophthaloyl chloride or isophthalic acid
- the aromatic diamine compound 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine.
- the amorphous polymer chain present between individual crystals having an average particle diameter of 8.0 nm or less including a repeating unit represented by Chemical Formula 1, or a first polyamide segment including a block composed of the following Chemical Formula 2, It may include a repeating unit represented by, or a second polyamide segment comprising a block consisting of.
- Ar 2 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms.
- Ar 2 is an arylene group having 6 to 20 carbon atoms substituted with one or more substituents selected from the group consisting of an alkyl group, a haloalkyl group, and an amino group, and more preferably 2,2'-bis (trifluoro Methyl) -4,4'-biphenylene group.
- Ar 2 may be a divalent organic functional group derived from an aromatic diamine monomer, and a specific example of the aromatic diamine monomer is 2,2'-bis (trifluoromethyl) -4,4 '-Biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine), 2,2'-dimethyl-4,4'-diaminobenzidine (2,2'-dimethyl-4,4 '-diaminobenzidine), 4,4'-diaminodiphenyl sulfone, 4,4'-(9-fluorenylidene) dianiline (4,4 '-(9-fluorenylidene dianiline), bis (4- (4-aminophenoxy) phenyl) bis (4- (4-aminophenoxy) phenyl) sulfone), 2,2 ', 5,5'-tetrachlorobenzidine (2,2 '-bis (triflu
- the aromatic diamine monomer is 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB ) Or 2,2'-dimethyl-4,4'-diaminobenzidine.
- the second polyamide segment may include a repeating unit represented by Chemical Formula 2 or a block composed of a repeating unit represented by Chemical Formula 2.
- the repeating unit represented by Chemical Formula 2 includes: a repeating unit represented by Chemical Formula 2-1; Or a repeating unit represented by the following formula 2-2; It may include one of the repeating unit.
- Ar 2 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms.
- the detailed description of Ar 2 includes the above-described contents in Chemical Formula 2.
- the repeating unit represented by Formula 2-1 is a repeating unit formed by amidation reaction of isophthaloyl chloride or isophthalic acid with an aromatic diamine monomer
- the repeating unit represented by Formula 2-2 is phthaloyl chloride or phthalic acid and aromatic It is a repeating unit formed by the amidation reaction of a diamine monomer.
- repeating unit represented by Chemical Formula 2-1 include a repeating unit represented by Chemical Formula 2-4.
- repeating unit represented by Chemical Formula 2-2 include a repeating unit represented by Chemical Formula 2-5.
- the second polyamide segment may be represented by Formula 6 below.
- Ar 2 is a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, and b is an integer of 1 to 3, or 1 to 2 .
- Chemical Formula 6 when b is 1, Chemical Formula 6 may be a repeating unit represented by Chemical Formula 2.
- Formula 6 when b is 2 to 3, Formula 6 may be a block composed of repeating units represented by Formula 2.
- the repeating unit represented by Chemical Formula 2 is a repeating unit formed by the amidation reaction of isophthaloyl chloride, isophthalic acid or phthaloyl chloride, phthalic acid with an aromatic diamine monomer, and due to the curved molecular structure, chain packing and It has the property of interfering with the alignment, and increases the amorphous region in the polyamide resin, thereby improving the optical properties and the fracture strength of the polyamide film.
- the molecular weight of the polyamide resin can be increased.
- the proportion of repeating units represented by Formula 2 is 5 mol% to 60 mol%, 5 mol% to 50 mol%, or 5 mol% to 40 mol%, Or 5 mol% to 30 mol%, or 10 mol% to 50 mol%, or 15 mol% to 50 mol%, or 15 mol% to 40 mol%, or 15 mol% to 30 mol%, or 15 mol% to 20 mol%, or 15 mol% to 18 mol%.
- the polyamide resin in which the repeating unit represented by Chemical Formula 2 is contained in the above-mentioned content can inhibit the length growth of the chain consisting of only the specific repeating unit represented by Chemical Formula 1, thereby lowering the crystallinity of the resin. Accordingly, it is possible to secure excellent transparency by having a low haze value.
- the content of the repeating units represented by Formula 1 is 60 mol% to 95 mol%, or 70 mol% to 95 mol%, or 50 mol% To 90 mol%, or 50 mol% to 85 mol%, or 60 mol% to 85 mol%, or 70 mol% to 85 mol%, or 80 mol% to 85 mol%, or 82 mol% to 85 mol%
- the content of the repeating unit represented by Formula 2 is 5 mol% to 40 mol%, or 5 mol% to 30 mol%, or 10 mol% to 50 mol%, or 15 mol% to 50 mol%, or 15 mol% To 40 mol%, or 15 mol% to 30 mol%, or 15 mol% to 20 mol%, or 15 mol% to 18 mol%.
- the polyamide resin increases the molar content of the repeating unit represented by Formula 1, and the polyamide film according to chain packing and alignment in the polymer by the linear molecular structure of the repeating unit represented by Formula 1 Crystallization of the resin by inhibiting the length growth of the chain consisting of only the specific repeating unit represented by the formula (1) despite the relatively small molar content of the repeating unit represented by the formula (2) while maximizing the effect of improving the surface hardness and mechanical properties
- the properties can be lowered, and accordingly, a low haze value can be obtained to ensure excellent transparency.
- the first polyamide segment and the second polyamide segment may form a main chain including a cross-repeating unit represented by Formula 3 below. That is, the first polyamide segment included in the individual crystals having an average particle diameter of 8.0 nm or less as measured by the incineration X-ray scattering device is the second polyamide segment contained in the amorphous polymer chain existing between the individual crystals.
- a cross-repeating unit represented by Chemical Formula 3 may be formed.
- the polyamide resin of one embodiment has a structure in which a plurality of individual crystals and amorphous polymer chains are repeated, as shown in the crystal structure shown in FIG. 1, and it is possible to suppress the continuous size growth of only the individual crystals.
- the individual crystals may have an average particle diameter measured by an incineration X-ray scattering apparatus reduced to 8.0 nm or less.
- A is the first polyamide segment
- B is the second polyamide segment
- the main chain of the polyamide resin is a first polyamide segment derived from terephthaloyl chloride or terephthalic acid, and a second derived from isophthaloyl chloride, isophthalic acid or phthaloyl chloride, phthalic acid, as in Chemical Formula 3 above.
- the polyamide segments can alternately form a polymerization chain. That is, the second polyamide segment is located between the first polyamide segments, and may serve to inhibit length growth of the first polyamide segments.
- the second polyamide segment is included in the amorphous polymer chain present between individual crystals having an average particle diameter of 8.0 nm or less, and the first polyamide segment is applied to individual crystals having an average particle diameter of 8.0 nm or less. Since it is included, in the polyamide resin, the amorphous polymer chain may be positioned between individual crystals having an average particle diameter of 8.0 nm or less, and may serve to suppress the size growth of individual crystals. This can also be confirmed through the crystal structure shown in FIG. 1 below.
- the haze value of the polyamide resin can be remarkably lowered while the crystal characteristics by the individual crystals are reduced, thereby realizing excellent transparency.
- the main chain of the polyamide resin is a first polyamide segment derived from terephthaloyl chloride, or terephthalic acid, and a second derived from isophthaloyl chloride, isophthalic acid or phthaloyl chloride, phthalic acid, as in Chemical Formula 3 above.
- the alternating polyamide segments (alternatively) to form a polymerization chain appear to be due to the formation of a melt-kneaded composite in the polyamide resin production method of the present invention described later.
- cross-repeating unit represented by Chemical Formula 3 may be a repeating unit represented by Chemical Formula 4 below.
- Ar 1 and Ar 2 are each independently a substituted or unsubstituted arylene group having 6 to 20 carbon atoms, or a substituted or unsubstituted heteroarylene group having 2 to 20 carbon atoms, and a1 and a2 are the same as each other, or Different, each independently an integer of 1 to 10, or 1 to 5, b1 and b2 are the same or different from each other, and each independently an integer of 1 to 5, or 1 to 3.
- a crystalline polymer block having a repeating unit number of a1 or a2 refers to individual crystals having an average particle diameter of 8.0 nm or less as measured by the incineration X-ray scattering apparatus. Can be achieved.
- an amorphous polymer block (derived from isophthaloyl chloride, isophthalic acid or phthaloyl chloride, phthalic acid) having a repeating unit number of b1 or b2 is obtained by the incineration X-ray scattering apparatus. Amorphous polymer chains between individual crystals having an average particle diameter of 8.0 nm or less can be formed.
- the polyamide resin may include a repeating unit represented by Chemical Formula 1, or a first polyamide segment including a block composed of the same; And a second polyamide segment including a repeating unit represented by Formula 2 or a block composed of the first polyamide segment and a second polyamide segment comprising cross-repeating units represented by Formula 3 above.
- Main chains can be formed.
- the present inventors as the polyamide resin of the above embodiment, as the average particle diameter of the individual crystals is reduced to 8.0 nm or less, a polymer block composed of repeat units derived from terephthaloyl chloride or terephthalic acid in the polyamide resin (hereinafter, The length growth of the first polyamide segment) was minimized, and the crystallinity of the polyamide resin was lowered to confirm that the transparent polyamide resin could be realized through experiments and to complete the invention.
- the main chain of the polyamide resin is a crystalline polymer block (hereinafter referred to as a first polyamide segment) derived from terephthaloyl chloride or terephthalic acid and isophthaloyl chloride, isophthalic acid or phthaloyl chloride, derived from phthalic acid
- the amorphous polymer block (second polyamide segment) can alternately form an polymerization chain. That is, the second polyamide segment is located between the first polyamide segments, and may serve to inhibit length growth of the first polyamide segments.
- the first polyamide segment is included in the individual crystals of the polyamide resin to express crystal properties
- the second polyamide segment is included in the amorphous polymer chain between the individual crystals to express amorphous properties. do.
- the average particle diameter of individual crystals measured by an incineration X-ray scattering device is measured to be relatively small, and the polyamide resin has crystal properties of the first polyamide segment. Since the haze value can be significantly lowered while decreasing, excellent transparency can be realized.
- the effect of suppressing the length growth of the first polyamide segment by the second polyamide segment is reduced, so that when the length growth of the first polyamide segment is excessive, the individual crystals measured by the incineration X-ray scattering apparatus
- the average particle size is measured relatively large, and the polyamide resin may have poor transparency while rapidly increasing haze value while increasing the crystal properties of the first polyamide segment.
- the polyamide resin may have a sufficient level of weight average molecular weight, thereby achieving a sufficient level of mechanical properties.
- the polyamide resin may have a crystallinity of 20% or less, or 1% to 20%, measured by an incineration X-ray scattering apparatus.
- the crystallinity of the polyamide resin is a solid model of a scattering pattern obtained by irradiating X-rays having an energy of 10 KeV to 20 KeV, or 10 KeV to 14 KeV, or 16 KeV to 20 KeV in an incineration X-ray scattering apparatus. model) and can be measured through analytical equipment.
- the incineration X-ray scattering apparatus and the analysis contents thereof include the contents described above in the average particle diameter of the individual crystals.
- the weight average molecular weight of the polyamide resin is 330000 g / mol or more, 420000 g / mol or more, or 500000 g / mol or more, or 330000 g / mol to 1000000 g / mol, or 420000 g / mol to 1000000 g / mol, Or 500000 g / mol to 1000000 g / mol, or 420000 g / mol to 800000 g / mol, or 420000 g / mol to 600000 g / mol, or 450000 g / mol to 550,000 g / mol.
- the weight average molecular weight of the polyamide resin is measured to be high, which appears to be due to the formation of a melt-kneaded composite in the polyamide resin manufacturing method of another embodiment of the present invention described below.
- weight average molecular weight of the polyamide resin is reduced to less than 330000 g / mol, mechanical properties such as flexibility and pencil hardness are reduced.
- the polyamide resin may have a molecular weight distribution of 3.0 or less, or 2.9 or less, or 2.8 or less, or 1.5 to 3.0, or 1.5 to 2.9, or 1.6 to 2.8, or 1.8 to 2.8. Through this narrow range of molecular weight distribution, the polyamide resin may have improved mechanical properties such as bending properties and hardness properties. When the molecular weight distribution of the polyamide resin is excessively wider than 3.0, it is difficult to improve the mechanical properties described above to a sufficient level.
- the haze measured by ASTM D1003 of the polyamide resin is 3.0% or less, or 1.5% or less, 1.00% or less, or 0.85% or less, or 0.10% to 3.0%, or 0.10% to 1.5%, or 0.10% to 1.00 %, Or 0.50% to 1.00%, or 0.80% to 1.00%, or 0.81% to 0.97%.
- the haze measured by ASTM D1003 of the polyamide resin increases to more than 3.0%, the opacity increases, making it difficult to secure a sufficient level of transparency.
- the polyamide resin has a weight average molecular weight of 330000 g / mol or more, 420000 g / mol or more, or 500000 g / mol or more, or 330000 g / mol to 1000000 g / mol, or 420000 g / mol to 1000000 g / mol, or 500000 g / mol to 1000000 g / mol, or 420000 g / mol to 800000 g / mol, or 420000 g / mol to 600000 g / mol, or 450000 g / mol to 550,000 g / mol
- haze measured by ASTM D1003 is 3.0% or less, or 1.5% or less, 1.00% or less, or 0.85% or less, or 0.10% to 3.0%, or 0.10% to 1.5%, or 0.10% to 1.00%, or 0.50% to 1.00%, or 0.80% to 1.00%, or 0.81% to 0.97%.
- the relative viscosity of the polyamide resin is 45000 cps or more, 60000 cps or more, or 45000 cps to 500000 cps, or 60000 cps to 500000 cps, or 70000 cps to 400000 cps, or 80000 cps to It may be 300000 cps, or 100000 cps to 200000 cps, or 110000 cps to 174000 cps.
- Examples of the method for preparing the polyamide resin include: melt-kneading the compound represented by the following formula (7) and the compound represented by the following formula (8), and solidifying the melt-kneaded product to form a complex; And reacting the complex with an aromatic diamine monomer.
- a method for producing a polyamide resin may be used.
- X is a halogen or a hydroxyl group.
- the compound represented by the formula (7) and the formula (8) it is possible to prepare a complex of uniformly mixed monomers through melting of the compound represented by, and reacting it with an aromatic diamine monomer, an amide repeat unit derived from the compound represented by Chemical Formula 7, or a block composed of the same ,
- the amide repeating unit derived from the compound represented by the formula (8), or a block consisting of it can be alternately (alternatively) polymerized through experiments and completed the invention.
- the polyamide resin of the above embodiment can be obtained.
- each of the compound represented by Chemical Formula 7 and the compound represented by Chemical Formula 8 exhibits different aspects in solubility and reactivity due to chemical structural differences.
- the compound represented by Chemical Formula 7 and the compound represented by Chemical Formula 8 are not simply physically mixed, but through the formation of a complex by melt kneading at a temperature higher than each melting point, Each monomer was induced to react relatively uniformly with the aromatic diamine monomer.
- the compound represented by the formula (7) and the compound represented by the formula (8) are dissolved in a solvent and reacted with an aromatic diamine monomer in a solution state, resulting in deterioration due to moisture or a solvent. Due to the hybridization with the molecular weight of the polyamide resin finally synthesized there was a limit to decrease, due to the difference in solubility of the compound represented by the formula (7) and the compound represented by the formula (8) derived from the compound represented by the formula (7) As the amide repeating unit was formed predominantly dominant, a long block was formed to increase the crystallinity of the polyamide resin, and it was difficult to secure transparency.
- a temperature lower than the melting point of each of the composite obtained by melt-kneading the compound represented by the formula (7) and the compound represented by the formula (8) is minus 10 ° C to image 30 ° C, or 0 ° C. It was confirmed that the molecular weight of the finally synthesized polyamide resin was improved by reacting with the aromatic diamine monomer dissolved in the organic solvent in the form of a solid powder through cooling at 30 ° C or 10 ° C to 30 ° C). , Through this, it was confirmed through experiments that excellent mechanical properties were secured.
- the method for producing the polyamide resin may include the step of melt-kneading the compound represented by Chemical Formula 7 and the compound represented by Chemical Formula 8, and solidifying the melt-kneaded product to form a complex.
- X is halogen or a hydroxyl group.
- X is chlorine.
- Specific examples of the compound represented by Chemical Formula 7 include terephthaloyl chloride or terephthalic acid.
- the compound represented by Chemical Formula 7 may form a repeating unit represented by Chemical Formula 1 by amidation reaction of an aromatic diamine monomer, and due to the linear molecular structure, chain packing and alignment in the polymer are kept constant. Can improve the surface hardness and mechanical properties of the polyamide film.
- X is halogen or a hydroxyl group.
- X is chlorine.
- Specific examples of the compound represented by Chemical Formula 8 include phthaloyl chloride, phthalic acid, isophthaloyl chloride, or isophthalic acid.
- the compound represented by Chemical Formula 8 may form a repeating unit represented by Chemical Formula 2 through amidation reaction of an aromatic diamine monomer, and due to a curved molecular structure, it prevents chain packing and alignment in the polymer. It has a personality and can increase the amorphous region in the polyamide resin, thereby improving the optical properties and the fracture strength of the polyamide film.
- the repeating unit represented by Formula 2 derived from the compound represented by Formula 8 is included in the polyamide resin together with the repeating unit represented by Formula 1, the molecular weight of the polyamide resin can be increased.
- the melt-kneading is the compound represented by the formula (7) and the formula It means that the compound represented by 8 is mixed at a temperature above the melting point.
- each monomer is an aromatic diamine monomer And to react relatively uniformly.
- the amide repeat unit derived from the compound represented by the formula (7) is formed predominantly leading to the formation of a long block.
- Crystallinity of the polyamide resin increases, overcomes the limitation that it is difficult to ensure transparency, and, as in the above embodiment, the first polyamide segment and the second polyamide segment alternately (alternatively) to the formula (3) It becomes possible to form a main chain including the displayed cross-repeating unit.
- the compound represented by Formula 8 is 5 parts by weight to 60 parts by weight, or 5 parts by weight to 50 parts by weight, or 5 parts by weight to 25 parts by weight, or 10 parts by weight to 30 parts by weight, or 15 parts by weight to 25 parts by weight.
- a technical effect of increasing transmittance and clarity can be realized.
- 100 parts by weight of the compound represented by the formula (7) when the compound represented by the formula (8) is mixed in an amount of less than 5 parts by weight, it becomes opaque and a technical problem of increasing hazeness occurs.
- the compound represented by Chemical Formula 8 is excessively mixed in excess of 60 parts by weight with respect to 100 parts by weight of the displayed compound, a technical problem that physical properties (hardness, tensile strength, etc.) decrease may occur.
- the coagulation refers to a physical change of solidifying by cooling the melt-kneaded material in a molten state to a temperature below a melting point, and the complex formed thereby is in a solid state.
- the composite may be a solid powder obtained through an additional grinding process.
- the step of melt-kneading the compound represented by the formula (7) and the compound represented by the formula (8), and solidifying the melt-kneaded material to form a complex the compound represented by the formula (7) and the formula (8) Mixing the compound at a temperature of 50 ° C. or higher; And cooling the resultant product of the mixing step.
- the terephthaloyl chloride has a melting point of 81.3 °C to 83 °C
- the isophthaloyl chloride (Isophthaloyl chloride) has a melting point of 43 °C to 44 °C
- the phthaloyl chloride (Phthaloyl chloride) ) May have a melting point of 6 °C to 12 °C.
- the formula (7) Melting and kneading may proceed because the temperature is higher than the melting point of both the compound represented by and the compound represented by Chemical Formula 8.
- the result of the melt-kneading step is 5 ° C. or less, or 10 ° C. to 5 ° C., or 5 ° C. to 5 ° C. Since the temperature condition is lower than the melting point of both the compound and the compound represented by Chemical Formula 8, more uniform solid powder can be obtained through cooling.
- the step of crushing the product of the cooling step may be further included.
- a complex of solid content may be prepared in powder form, and the powder obtained after the pulverizing step may have an average particle diameter of 1 mm to 10 mm.
- the pulverizer used for pulverizing to such a particle size is, specifically, a pin mill, a hammer mill, a screw mill, a roll mill, a disc mill, or a jog.
- a mill, a sieve, a jaw crusher, or the like can be used, but is not limited to the above-described example.
- the formula Excellent mechanical properties of the polyamide resin are secured by improving the molecular weight of the final synthesized polyamide resin by minimizing the deterioration by moisture of the compound represented by 7 and the compound represented by the formula (8) or mixing with a solvent. Can be.
- the manufacturing method of the polyamide resin is after melt-kneading the compound represented by the formula (7) and the compound represented by the formula (8), and solidifying the melt-kneaded product to form a complex
- the complex is an aromatic diamine monomer It may include the step of reacting with.
- the reaction in the step of reacting the complex with an aromatic diamine monomer may be performed under an inert gas atmosphere at a temperature condition of minus 25 ° C to 25 ° C, or a temperature of minus 25 ° C to 0 ° C.
- the aromatic diamine monomer is specifically, for example, 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine) , 2,2'-dimethyl-4,4'-diaminobenzidine, 4,4'-diaminodiphenyl sulfone ), 4,4 '-(9-fluorenylidene) dianiline (4,4'-(9-fluorenylidene) dianiline), bis (4- (4-aminophenoxy) phenyl) sulfone (bis (4- (4-aminophenoxy) phenyl) sulfone), 2,2 ', 5,5'-tetrachlorobenzidine (2,2', 5,5'-tetrachlorobenzidine), 2,7-diaminofluorene (2,7- diaminofluorene), 4,
- the aromatic diamine monomer is 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB), 2,2'-dimethyl-4,4'-diaminobenzidine, m-xylylenediamine, or p-xyleneylene Diamine (p-xylylenediamine) can be used.
- the step of reacting the complex with an aromatic diamine monomer includes: dissolving the aromatic diamine monomer in an organic solvent to prepare a diamine solution; And adding the composite powder to the diamine solution.
- the aromatic diamine monomer included in the diamine solution may exist dissolved in an organic solvent.
- the solvent are not particularly limited, for example, N-methylformamide, N, N-dimethylformamide, N, N-diethylformamide, N, N-dimethylacetamide, N, N-di Ethyl acetamide, N, N-dimethylpropionamide, 3-methoxy-N, N-dimethylpropionamide, dimethylsulfoxide, acetone, N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone , Tetrahydrofuran, chloroform, gamma-butyrolactone, ethyl lactate, methyl 3-methoxypropionate, methyl isobutyl ketone, toluene, xylene, methanol, ethanol and other general-purpose organic solvents can be used
- the complex powder reacts with the aromatic diamine monomer dissolved in the diamine solution. Accordingly, by improving the molecular weight of the polyamide resin to be finally synthesized by minimizing the deterioration by moisture of the compound represented by the formula (7) and the compound represented by the formula (8) or hybridization with a solvent, the polyamide resin Excellent mechanical properties can be secured.
- the complex powder may be prepared in the form of a powder in a solid form through the step of crushing the resultant product in the cooling step, and the powder obtained after the crushing step has an average particle diameter of 1 mm. To 10 mm.
- a polymer film comprising the polyamide resin of the above embodiment may be provided.
- the contents of the polyamide resin may include all of the contents described above in one embodiment.
- the polymer film may include the polyamide resin of the embodiment or a cured product thereof, and the cured product means a material obtained through a curing process of the polyamide resin of the embodiment.
- the polymer film When a polymer film is manufactured using the polyamide resin of the above-described embodiment, excellent optical and mechanical properties can be realized, and flexibility is also provided, so that it can be used as a material for various molded products.
- the polymer film may be applied to a display substrate, a protective film for a display, a touch panel, a window cover of a foldable device, and the like.
- the thickness of the polymer film is not particularly limited, but can be freely adjusted within, for example, 0.01 ⁇ m to 1000 ⁇ m. When the thickness of the polymer film increases or decreases by a specific value, physical properties measured in the polymer film may also change by a certain value.
- the polymer film may be prepared by a conventional method such as a dry method or a wet method using the polyamide resin of the embodiment.
- the polymer film may be obtained by coating a solution containing the polyamide resin of the above embodiment on an arbitrary support to form a film, and evaporating a solvent from the film to dry the film. Stretching and heat treatment for the polymer film may be further performed.
- the polymer film may exhibit colorless and transparent and excellent mechanical properties as it is manufactured using the polyamide resin of the embodiment.
- a haze value measured according to ASTM D1003 for a specimen having a thickness of 50 ⁇ 2 ⁇ m is 3.0% or less, or 1.5% or less, 1.00% or less, or 0.85% or less, Or 0.10% to 3.0%, or 0.10% to 1.5%, or 0.10% to 1.00%, or 0.50% to 1.00%, or 0.80% to 1.00%, or 0.81% to 0.97%.
- the haze measured by ASTM D1003 of the polymer film increases to more than 3.0%, the opacity increases, making it difficult to secure a sufficient level of transparency.
- the polymer film the yellow index value (yellow index, YI) measured in accordance with ASTM E313 for a specimen having a thickness of 50 ⁇ 2 ⁇ m, 4.0 or less, or 3.0 or less, or 0.5 to 4.0, or 0.5 To 3.0.
- YI yellow index
- the polymer film for a specimen having a thickness of 50 ⁇ 2 ⁇ m, the transmittance (T, @ 550nm) for visible light at a wavelength of 550 nm may be 86% or more, or 86% to 90%, 388 nm
- the transmittance (T, @ 388 nm) of the wavelength of ultraviolet light may be 50.00% or more, or 60.00% or more.
- the polymer film the cutting strength measured for a specimen having a thickness of 50 ⁇ 2 ⁇ m (angle of 135 ° at a speed of 175 rpm, a radius of curvature of 0.8 mm and the number of reciprocating fractures at a load of 250 g)
- the value may be 4000 cycles or more, 7000 cycles or more, or 9000 cycles or more, or 4000 cycles to 20,000 cycles, or 7000 cycles to 20,000 cycles, or 9000 cycles to 20,000 cycles.
- the polymer film has a pencil hardness (Pencil Hardness) value measured in accordance with ASTM D3363 for a specimen having a thickness of 50 ⁇ 2 ⁇ m 1H or more, 3H or more, or 1 H to 4H, or 3 H to 4H Can be
- the substrate comprising a polyamide resin having an average particle diameter of 8.0 nm or less of an individual crystal measured by an incineration X-ray scattering apparatus; And a hard coating layer formed on at least one surface of the substrate.
- the substrate may include the polyamide resin of one embodiment, or may include a polymer film of the other embodiment.
- the contents of the polyamide resin may include all of the contents described above in one embodiment, and the contents of the polymer film may include all of the contents described above in another embodiment.
- a hard coating layer may be formed on at least one surface of the substrate.
- a hard coating layer may be formed on one surface or both surfaces of the substrate.
- the opposite side of the substrate is made of polyimide-based, polycarbonate-based, polyester-based, polyalkyl (meth) acrylate-based, polyolefin-based, and polycyclic olefin-based polymers.
- a polymer film including at least one polymer selected from the group may be formed.
- the hard coating layer may have a thickness of 0.1 ⁇ m to 100 ⁇ m.
- the hard coating layer can be used without any limitation as long as it is a material known in the hard coating field, for example, the hard coating layer is a binder resin of a photocurable resin; And inorganic particles or organic particles dispersed in the binder resin.
- the photo-curable resin contained in the hard coating layer is a polymer of a photo-curable compound that can cause a polymerization reaction when light such as ultraviolet rays is irradiated, and may be common in the art.
- the photocurable compound may be a polyfunctional (meth) acrylate-based monomer or oligomer, wherein the number of (meth) acrylate-based functional groups is 2 to 10, or 2 to 8, or 2 to 7 It is advantageous in terms of securing physical properties of the hard coating layer.
- the photocurable compound may include pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, dipentaerythritol hepta ( Meth) acrylate, tripentaerythritol hepta (meth) acrylate, trilene diisocyanate, xylene diisocyanate, hexamethylene diisocyanate, trimethylolpropane tri (meth) acrylate, and trimethylolpropane polyethoxy tri (meth) ) May be one or more selected from the group consisting of acrylates.
- the inorganic particles may be, for example, metal atoms such as silica, aluminum, titanium, and zinc, or oxides and nitrides thereof, respectively, and silica particles, aluminum oxide particles, titanium oxide particles, or zinc oxide particles may be used independently. have.
- the inorganic particles may have an average radius of 100 nm or less, or 5 to 100 nm.
- the type of the organic particles is also not limited, and for example, polymer particles having an average particle diameter of 10 nm to 100 ⁇ m may be used.
- the resin laminate may be used as a substrate or cover window of a display device, and may be used as a substrate or cover window of a flexible display device with high light transmittance and low haze characteristics and high flexibility and bending durability. That is, the display device including the resin laminate or the flexible display device including the resin laminate may be implemented.
- a polyamide resin that secures mechanical properties of an appropriate level or higher, and a polymer film and resin laminate using the same can be provided.
- Example 1 shows a schematic view of the crystal structure of the polyamide resin obtained in Example 1 (1).
- Figure 2 shows the 13 C-NMR spectrum of the polyamide resin obtained in (1) of Example 1.
- Fig. 3 shows the 13 C-NMR spectrum of the polyamide resin obtained in Example 1 (1).
- terephthaloyl chloride TPC; melting point: 83 ° C
- IPC isophthaloyl chloride
- acyl chloride complex was pulverized with a jaw crusher to prepare a powder having an average particle diameter of 5 mm.
- TPC Terephthaloyl chloride
- IPC isophthaloyl chloride
- the acyl chloride complex powder obtained in Preparation Example 1 was stirred while adding 8.972 g (0.0442 mol), and the amide formation reaction was performed at 0 ° C. for 12 hours.
- N, N-dimethylacetamide (DMAc) was added to dilute the solid content to 5% or less, precipitated with 1 L of methanol, and filtered the precipitated solid content. Thereafter, the mixture was dried in a vacuum at 100 ° C. for 6 hours or more to prepare a polyamide resin in a solid form.
- DMAc N, N-dimethylacetamide
- the polyamide resin obtained in (1) of Example 1 is terephthaloyl chloride (terephthaloyl chloride, TPC) and 2,2'-bis (trifluoromethyl)- 82 mol% of the first repeating unit obtained by the amide reaction of 4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB), and isophthaloyl chloride, IPC) and 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB) It was confirmed that 18 mol% of 2 repeat units were contained.
- the polyamide resin obtained in (1) of Example 1 was dissolved in N, N-dimethylacetamide to prepare a polymer solution of about 10% (w / V).
- the polymer solution was applied on a polyimide base film (UPILEX-75s, UBE), and the thickness of the polymer solution was uniformly adjusted using a film applicator.
- a polyamide resin was prepared in the same manner as in Example 1 (1), except that the acyl chloride composite powder obtained in Preparation Example 2 was used instead of the acyl chloride composite powder obtained in Preparation Example 1.
- the polyamide resin obtained in (1) of Example 2 is terephthaloyl chloride (terephthaloyl chloride, TPC) and 2,2'-bis (trifluoromethyl)- 85 mol% of the first repeating unit obtained by the amide reaction of 4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB), and isophthaloyl chloride, IPC) and 2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB) It was confirmed that 15 mol% of 2 repeat units were contained.
- TPC terephthaloyl chloride
- a polymer film was prepared in the same manner as in (2) of Example 1, except that the polyamide resin obtained in (1) of Example 2 was used instead of the polyamide resin of Example 1 (1). It was prepared.
- TPC terephthaloyl chloride
- IPphthal isophthaloyl chloride
- a polymer film was prepared in the same manner as in Example 1 (2), except that the polyamide resin obtained in (1) of Comparative Example 1 was used instead of the polyamide resin obtained in (1) of Example 1. It was prepared.
- TPC terephthaloyl chloride
- IPC isophthaloyl chloride
- a polymer film was prepared in the same manner as in Example 1 (2), except that the polyamide resin obtained in (1) of Comparative Example 2 was used instead of the polyamide resin of Example 1 (1). It was prepared.
- IPC isophthaloyl chloride
- TPC A polyamide resin was prepared in the same manner as in Example 1 (1), except that 7.358 g (0.0362 mol) was added to proceed with the amide formation reaction.
- a polymer film was prepared in the same manner as in Example 2 (2), except that the polyamide resin obtained in (1) of Comparative Example 3 was used instead of the polyamide resin obtained in (1) of Example 1. It was prepared.
- SAXS small-angle X-ray scattering
- samples were prepared with a size of 1 cm * 1 cm in width, and at room temperature (23 ° C.), an incineration X-ray scattering apparatus having a camera length of 2.5 m and 6.5 m ( PLS-9A USAXS beam line), set the sample, and irradiated with X-rays having an energy of 11.1 KeV and 19.9 KeV to obtain a scattering pattern, and then analytical equipment (NIST SANS package) mounted on the incineration X-ray scattering device. Through scattering patterns, the average grain size (2Rc), dimensionality, and crystallinity of individual crystals were determined.
- the analysis of the average grain size, dimensionality, and crystallinity of the individual crystals is performed through a computer program (NIST SANS package) using data obtained from an incineration X-ray scattering device (PLS 9A beamline), More specifically, the average particle diameter of the individual crystals is a plot of the wave number q (unit: ⁇ -1 ) and scattering intensity I (unit: au) obtained by fitting the shape of individual crystals contained in the sample to a solid sphere model For the diameter distribution curve of crystals obtained by convolution with Schulz-Zimm distribution, it can be obtained through calculation of a computer program (NIST SANS package).
- the average particle diameter of the individual crystals contained in the polyamide resin obtained in the Examples was measured as small as 5 nm to 6.8 nm, while the average of the individual crystals contained in the polyamide resin obtained in Comparative Example 1
- the particle diameter was 8.4 nm
- the average particle diameter of the individual crystals contained in the polyamide resin obtained in Comparative Example 2 was 13.4 nm
- the average particle diameter of the individual crystals contained in the polyamide resin obtained in Comparative Example 3 was 7.8 nm, which was increased compared to the example.
- the crystallinity of the polyamide resin obtained in Examples was less than 20%, while the crystallinity of the polyamide resin obtained in Comparative Example 2 was 24%, which was increased compared to the Examples.
- the polyamide resin obtained in the above example was terephthaloyl chloride (TPC) and 2,2'-bis (trifluorome
- TPC terephthaloyl chloride
- 2,2'-bis (trifluorome) the length growth of a crystalline block composed of repeat units obtained by the amide reaction of butyl) -4,4'-biphenyldiamine (2,2'-bis (trifluoromethyl) -4,4'-biphenyldiamine, TFDB) It was confirmed that it was suppressed.
- Thickness The thickness of the polymer film was measured using a thickness measuring device.
- Yellow index (Y.I.): The yellow index of the polymer film was measured according to the measurement method of ASTM E313 using a COH-400 Spectrophotometer (NIPPON DENSHOKU INDUSTRIES).
- PDI polydispersity index
- the evaluation temperature was 50-75 ° C (about 65 ° C)
- DMF 100wt% solvent Using, a flow rate of 1 mL / min, the sample is prepared at a concentration of 1 mg / mL, and then supplied for 25 minutes in an amount of 100 ⁇ L, the molecular weight can be obtained using an assay curve formed using a polystyrene standard.
- the polystyrene standard 7 kinds of 3940/9600/31420/113300/327300/1270000/4230000 were used.
- the fracture strength of the polymer film was evaluated using a MIT type folding endurance tester. Specifically, when a specimen (1 cm * 7 cm) of a polymer film is loaded into a fracture resistance tester and fractured by bending at a speed of 175 rpm at an angle of 135 °, a radius of curvature of 0.8 mm, and a load of 250 g from the left and right sides of the specimen. Until the reciprocating bending cycle (cycle) was measured.
- Relative viscosity a solution containing a polyamide resin (solvent: dimethylacetamide (DMAc), solid content: 10 wt%) using a 25 ⁇ 0.2 ° C. constant temperature reflux system to rotate a non-Newtonian material of ASTM D 2196 Brookfield viscometer DV-2T is used as a viscometer test method, and brookfield's silicone oil is used as a standard material using a number of standard solutions having a viscosity range of 5000 cps to 200000 cps, spindle LV-4 (64) , 0.3 ⁇ 100RPM was measured, the unit was used as cps (mPa.s).
- Pencil hardness The pencil hardness of the polymer film was measured according to the measurement method of ASTM D3363 using a Pencil Hardness Tester. Specifically, after fixing the pencils of various hardness to the tester and scratching the polymer film, the degree of scratches on the polymer film was observed with the naked eye or a microscope, and when more than 70% of the total number of scratches was not scratched, the pencil The value corresponding to the hardness was evaluated by the pencil hardness of the polymer film.
- the hardness of the pencil increases in the order of B grade, F grade, and H grade, and within the same grade, the hardness increases as the number increases. Within the grade, the hardness increases as the number increases.
- the polyamide resin of the example prepared using the acyl chloride composite powder according to Preparation Examples 1 to 2 has a high weight average molecular weight of 463000 g / mol to 512000 g / mol, and a relative viscosity It was measured as high as 110000 cps to 174000 cps.
- polyamide resin In the synthesis process, the polyamide resin of the comparative example in which the acyl chloride complex powders according to Preparation Examples 1 to 2 were not used at all was 321,000 g / mol to 412,000 g / mol, and the molecular weight was reduced compared to the example, and the viscosity was 18,000 cps. It was reduced to 54,000 cps compared to the example.
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Abstract
Description
Claims (22)
- 소각 X선 산란 장치에 의해 측정되는 개별 결정의 평균 입경이 8.0 nm 이하인, 폴리아미드 수지.
- 제1항에 있어서,상기 개별 결정의 평균 입경은, 상기 소각 X선 산란 장치에서 10 KeV 내지 20 KeV의 에너지를 갖는 X선을 조사하여 얻어지는 산란 패턴을 구형 모델(solid sphere model)로 피팅하여 분석장비를 통해 측정하는, 폴리아미드 수지.
- 제1항에 있어서,상기 8.0 nm 이하의 평균 입경을 갖는 개별 결정들 사이에는 무정형의 고분자 사슬이 존재하는, 폴리아미드 수지.
- 제3항에 있어서,상기 8.0 nm 이하의 평균 입경을 갖는 개별 결정들 사이의 거리는 0.1 nm 내지 100 nm인, 폴리아미드 수지.
- 제1항에 있어서,상기 8.0 nm 이하의 평균 입경을 갖는 개별 결정은 1,4-방향족 디아실 화합물과 방향족 디아민 화합물의 결합물로부터 유래된 제1방향족 아미드 반복 단위를 포함하는, 폴리아미드 수지.
- 제5항에 있어서,상기 1,4-방향족 디아실 화합물은 테레프탈로일 클로라이드, 또는 테레프탈산을 포함하며,상기 방향족 디아민 화합물은 2,2'-비스(트리플루오로메틸)-4,4'-비페닐디아민을 포함하는, 폴리아미드 수지.
- 제3항에 있어서,상기 무정형의 고분자 사슬은 1,2-방향족 디아실 화합물과 방향족 디아민 화합물의 결합물로부터 유래된 제2방향족 아미드 반복 단위, 또는 1,3-방향족 디아실 화합물과 방향족 디아민 화합물의 결합물로부터 유래된 제3방향족 아미드 반복 단위를 포함하는, 폴리아미드 수지.
- 제7항에 있어서,상기 1,2-방향족 디아실 화합물은 프탈로일 클로라이드, 또는 프탈산을 포함하며,상기 1,3-방향족 디아실 화합물은 이소프탈로일 클로라이드 또는 이소프탈산을 포함하고,상기 방향족 디아민 화합물은 2,2'-비스(트리플루오로메틸)-4,4'-비페닐디아민을 포함하는, 폴리아미드 수지.
- 제9항에 있어서,상기 제1폴리아미드 세그먼트는 100 g/mol 내지 5000 g/mol의 수평균분자량을 갖는, 폴리아미드 수지.
- 제9항에 있어서,상기 폴리아미드 수지에 함유된 모든 반복단위를 기준으로, 상기 제1폴리아미드 세그먼트를 40 몰% 내지 95 몰% 포함하는, 폴리아미드 수지.
- 제1항에 있어서,소각 X선 산란 장치에 의해 측정되는 결정화도가 20% 이하인, 폴리아미드 수지.
- 제1항에 있어서,45 ㎛ 이상 55 ㎛ 이하의 두께를 갖는 시편에 대해, ASTM D1003에 의해 측정한 헤이즈가 3.0 % 이하인, 폴리아미드 수지.
- 제1항에 있어서,상기 폴리아미드 수지의 중량평균 분자량이 330000 g/mol 이상인, 폴리아미드 수지.
- 제13항에 있어서,상기 폴리아미드 수지에 함유된 모든 반복단위를 기준으로, 상기 화학식2로 표시되는 반복단위의 함량이 5 몰% 내지 60 몰%인, 폴리아미드 수지.
- 제13항에 있어서,상기 폴리아미드 수지에 함유된 모든 반복단위를 기준으로, 상기 화학식1로 표시되는 반복단위의 함량이 60 몰% 내지 95 몰%이고, 상기 화학식2로 표시되는 반복단위의 함량이 5 몰% 내지 40 몰%인, 폴리아미드 수지.
- 제1항의 폴리아미드 수지를 포함하는, 고분자 필름.
- 소각 X선 산란 장치에 의해 측정되는 개별 결정의 평균 입경이 8.0 nm 이하인 폴리아미드 수지를 포함한 기재; 및상기 기재의 적어도 일면에 형성되는 하드 코팅층;을 포함하는, 수지 적층체.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19882480.7A EP3789423B1 (en) | 2018-11-05 | 2019-11-01 | Polyamide resin, and polymer film, resin laminate using the same |
| US16/972,480 US12466916B2 (en) | 2018-11-05 | 2019-11-01 | Polyamide resin, and polymer film, resin laminate using the same |
| CN201980037562.4A CN112243448B (zh) | 2018-11-05 | 2019-11-01 | 聚酰胺树脂和使用其的聚合物膜、树脂层合体 |
| JP2020567080A JP7222459B2 (ja) | 2018-11-05 | 2019-11-01 | ポリアミド樹脂、およびそれを用いた高分子フィルムおよび樹脂積層体 |
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| KR10-2018-0134755 | 2018-11-05 | ||
| KR20180134755 | 2018-11-05 | ||
| KR10-2018-0153911 | 2018-12-03 | ||
| KR20180153911 | 2018-12-03 | ||
| KR10-2019-0014022 | 2019-02-01 | ||
| KR20190014022 | 2019-02-01 | ||
| KR10-2019-0034611 | 2019-03-26 | ||
| KR20190034611 | 2019-03-26 | ||
| KR10-2019-0125890 | 2019-10-11 | ||
| KR1020190125890A KR102261850B1 (ko) | 2018-11-05 | 2019-10-11 | 폴리아미드 수지, 이의 제조방법, 및 이를 포함하는 폴리아미드 필름 및 수지 적층체 |
| KR10-2019-0137544 | 2019-10-31 | ||
| KR10-2019-0137545 | 2019-10-31 | ||
| KR1020190137544A KR102423808B1 (ko) | 2019-02-01 | 2019-10-31 | 폴리아미드 수지, 및 이를 이용한 고분자 필름 및 수지 적층체 |
| KR1020190137545A KR102412532B1 (ko) | 2018-12-03 | 2019-10-31 | 폴리아미드 수지, 및 이를 이용한 고분자 필름 및 수지 적층체 |
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