WO2020204125A1 - Polyester entièrement aromatique et composition de résine de polyester - Google Patents

Polyester entièrement aromatique et composition de résine de polyester Download PDF

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WO2020204125A1
WO2020204125A1 PCT/JP2020/015150 JP2020015150W WO2020204125A1 WO 2020204125 A1 WO2020204125 A1 WO 2020204125A1 JP 2020015150 W JP2020015150 W JP 2020015150W WO 2020204125 A1 WO2020204125 A1 WO 2020204125A1
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mol
aromatic polyester
total
acid
respect
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PCT/JP2020/015150
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English (en)
Japanese (ja)
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俊明 横田
俊紀 川原
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ポリプラスチックス株式会社
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Priority to CN202080026453.5A priority Critical patent/CN113767134B/zh
Priority to JP2020553558A priority patent/JP6852233B2/ja
Publication of WO2020204125A1 publication Critical patent/WO2020204125A1/fr

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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
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds

Definitions

  • the present invention relates to a total aromatic polyester having very few side reactions during a polymerization reaction and having excellent hue and toughness, and this polyester resin composition.
  • Liquid crystal resins such as all-aromatic polyester have excellent fluidity, mechanical strength, heat resistance, chemical resistance, electrical properties, etc. in a well-balanced manner, and are therefore suitably widely used as high-performance engineering plastics.
  • Patent Document 1 a totally aromatic polyester having a specific structure containing 6-hydroxy-2-naphthoic acid as a main component has been proposed.
  • the all-aromatic polyester of Patent Document 1 has a problem that a ketone bond is formed by a side reaction during the polymerization reaction, and the product produced by the ketone bond deteriorates the hue of the polymer and lowers the toughness.
  • An object of the present invention is to provide a total aromatic polyester having very few side reactions during a polymerization reaction and having excellent hue and toughness, and a polyester resin composition thereof.
  • the present inventors consist of the following constituent units (I), (II), (III) and (IV) as essential constituents, and the content of the constituent unit (I) is 40 to 40 to all the constituent units. It is 75 mol%, the content of the constituent unit (II) is 0.5 to 7.5 mol% with respect to all the constituent units, and the content of the constituent unit (III) with respect to all the constituent units is 8.
  • the content of the constituent unit (IV) is 8.5 to 30 mol% with respect to all the constituent units, and the constituent units (I), (II), ( A total aromatic polyester characterized in that the total content of III) and (IV) is 100 mol%, which has an ester bond or a combination of an ester bond and a ketone bond in the molecule.
  • the present inventors have found that the above-mentioned problems can be solved by a total aromatic polyester in which the amount of the ketone bond is 0.0000 to 0.0010 mol% with respect to the total of the ester bond and the ketone bond. Has been completed. More specifically, the present invention provides the following.
  • the essential constituents consist of the following constituent units (I), (II), (III) and (IV).
  • the content of the constituent unit (I) is 40 to 75 mol% with respect to all the constituent units.
  • the content of the constituent unit (II) is 0.5 to 7.5 mol% with respect to all the constituent units.
  • the content of the constituent unit (III) is 8.5 to 30 mol% with respect to all the constituent units.
  • the content of the constituent unit (IV) is 8.5 to 30 mol% with respect to all the constituent units.
  • the total content of the constituent units (I), (II), (III) and (IV) with respect to all the constituent units is 100 mol%.
  • All aromatic polyester Total aromatics having an ester bond or a combination of an ester bond and a ketone bond in the molecule, and the amount of the ketone bond relative to the total of the ester bond and the ketone bond is 0.0000 to 0.0010 mol%.
  • polyester. (2) A polyester resin composition containing the total aromatic polyester according to (1).
  • (3) A polyester molded product obtained by molding the total aromatic polyester or polyester resin composition according to (1) or (2).
  • (4) A method for producing an all-aromatic polyester It comprises the steps of acylating 6-hydroxy-2-naphthoic acid, 4-hydroxybenzoic acid, and 4,4'-dihydroxybiphenyl with fatty acid anhydride and transesterifying with 1,4-phenylenedicarboxylic acid.
  • 6-hydroxy-2-naphthoic acid 4-hydroxybenzoic acid, 1,4-phenylenedicarboxylic acid, and 4,4'-dihydroxybiphenyl.
  • the amount of 6-hydroxy-2-naphthoic acid used is 40-75 mol%
  • the amount of 4-hydroxybenzoic acid used is 0.5 to 7.5 mol%
  • the amount of 1,4-phenylenedicarboxylic acid used is 8.5 to 30 mol%
  • 4,4'-dihydroxybiphenyl used is 8.5 to 30 mol%
  • the total amount of 6-hydroxy-2-naphthoic acid, 4-hydroxybenzoic acid, 1,4-phenylenedicarboxylic acid, and 4,4'-dihydroxybiphenyl used is 100 mol%.
  • the method for producing a totally aromatic polyester according to (4) which comprises using a nitrogen-containing heterocyclic compound as a catalyst.
  • the method for producing a totally aromatic polyester according to (4) which comprises using a potassium compound and / or a trivalent cobalt compound as a catalyst.
  • the method for producing a total aromatic polyester according to (7) or (8), wherein the trivalent cobalt compound is tris (2,4-pentanedionato) cobalt (III).
  • the present invention it is possible to provide a total aromatic polyester having a very small amount of side reaction during a polymerization reaction and having excellent hue and toughness, and a polyester resin composition thereof.
  • the total aromatic polyester according to the present invention comprises the following constituent units (I), (II), (III) and (IV) as essential constituents, and the constituent units (I) are contained in all the constituent units.
  • the amount is 40 to 75 mol%
  • the content of the constituent unit (II) is 0.5 to 7.5 mol% with respect to all the constituent units
  • the content of the constituent unit (III) is contained with respect to all the constituent units.
  • the amount is 8.5 to 30 mol%, and the content of the constituent unit (IV) is 8.5 to 30 mol% with respect to all the constituent units, and the constituent units (I), ( A total aromatic polyester characterized in that the total content of II), (III) and (IV) is 100 mol%, and an ester bond or a combination of an ester bond and a ketone bond in the molecule. It is a total aromatic polyester having, and the amount of the ketone bond is 0.0000 to 0.0010 mol% with respect to the sum of the ester bond and the ketone bond.
  • the structural unit (I) is derived from 6-hydroxy-2-naphthoic acid (hereinafter, also referred to as "HNA").
  • the total aromatic polyester of the present invention contains 40 to 75 mol% of the structural unit (I) with respect to all the structural units. If the content of the structural unit (I) is less than 40 mol%, the melting point is lowered and the heat resistance is insufficient. If the content of the structural unit (I) exceeds 75 mol%, solidification occurs during polymerization and a polymer cannot be obtained.
  • the content of the structural unit (I) is preferably 40 to 70 mol%, more preferably 40 to 65 mol%, still more preferably 40 to 63 mol%, and more. It is more preferably 40 to 62 mol%, and particularly preferably 40 to 60 mol%.
  • the structural unit (II) is derived from 4-hydroxybenzoic acid (hereinafter, also referred to as "HBA").
  • the total aromatic polyester of the present invention contains 0.5 to 7.5 mol% of the constituent unit (II) with respect to all the constituent units. If the content of the structural unit (II) is less than 0.5 mol%, solidification occurs during polymerization and a polymer cannot be obtained. If the content of the structural unit (II) exceeds 7.5 mol%, the melting point is lowered and the heat resistance is insufficient.
  • the content of the structural unit (II) is preferably 0.5 to 7.0 mol%, more preferably 1.0 to 7.0 mol%, and further preferably 1. It is .2 to 7.0 mol%, more preferably 1.5 to 6.5 mol%, and particularly preferably 2.0 to 6.0 mol%.
  • the structural unit (III) is derived from 1,4-phenylenedicarboxylic acid (hereinafter, also referred to as "TA").
  • the total aromatic polyester of the present invention contains 8.5 to 30 mol% of the constituent unit (III) with respect to all the constituent units. If the content of the structural unit (III) is less than 8.5 mol% or more than 30 mol%, at least one of lower melting point and heat resistance tends to be insufficient. From the viewpoint of achieving both a low melting point and heat resistance, the content of the structural unit (III) is preferably 10 to 30 mol%, more preferably 12 to 28 mol%, and further preferably 14 to 28. It is mol%, more preferably 15 to 28 mol%, and particularly preferably 17 to 27 mol%.
  • the structural unit (IV) is derived from 4,4'-dihydroxybiphenyl (hereinafter, also referred to as "BP").
  • the total aromatic polyester of the present invention contains 8.5 to 30 mol% of structural units (IV) with respect to all structural units. If the content of the structural unit (IV) is less than 8.5 mol% or more than 30 mol%, at least one of lower melting point and heat resistance tends to be insufficient. From the viewpoint of achieving both a low melting point and heat resistance, the content of the structural unit (IV) is preferably 10 to 30 mol%, more preferably 12 to 28 mol%, and further preferably 14 to 28 mol%. It is mol%, more preferably 15 to 28 mol%, and particularly preferably 17 to 27 mol%.
  • the total aromatic polyester of the present invention contains specific structural units (I) to (IV) in a specific amount with respect to all the structural units, and contains an ester bond or an ester bond and a ketone in the molecule. Since it has a combination with a bond and the amount of the ketone bond with respect to the total of the ester bond and the ketone bond is 0.0000 to 0.0010 mol%, there are very few side reactions during the polymerization reaction, and the hue Is excellent.
  • the amount of the ketone bond to the total of the ester bond and the ketone bond is preferably 0.0000 to 0.0008 mol%, preferably 0.0000 to 0.0006.
  • the total aromatic polyester of the present invention contains 100 mol% of the constituent units (I) to (IV) in total with respect to all the constituent units.
  • the total aromatic polyester of the present invention exhibits optical anisotropy when melted. Exhibiting optical anisotropy when melted means that the all-aromatic polyester of the present invention is a liquid crystal polymer.
  • the fact that the total aromatic polyester is a liquid crystal polymer is an indispensable element for the total aromatic polyester to have both thermal stability and easy workability.
  • the total aromatic polyester composed of the constituent units (I) to (IV) may not form an anisotropic molten phase depending on the constituent components and the sequence distribution in the polymer, but the polymer of the present invention has. Limited to all aromatic polyesters that exhibit optical anisotropy when melted.
  • melt anisotropy can be confirmed by a conventional polarization inspection method using an orthogonal polarizer. More specifically, the confirmation of melt anisotropy can be carried out by melting a sample placed on a hot stage manufactured by Linkham Co., Ltd. using a polarizing microscope manufactured by Olympus Corporation and observing it at a magnification of 150 times in a nitrogen atmosphere. Liquid crystal polymers are optically anisotropic and transmit light when inserted between orthogonal polarizers. If the sample is optically anisotropic, polarized light is transmitted even in a molten static liquid state, for example.
  • a nematic liquid crystal polymer causes a significant decrease in viscosity above the melting point, it is generally an index of processability to exhibit liquid crystallinity at a temperature above the melting point.
  • the melting point is preferably as high as possible from the viewpoint of heat resistance, but it is preferably 380 ° C. or lower in consideration of thermal deterioration during melt processing of the polymer and the heating capacity of the molding machine. It should be noted that the temperature is more preferably 260 to 370 ° C, even more preferably 270 to 370 ° C, and particularly preferably 280 to 360 ° C.
  • the melt viscosity of the total aromatic polyester at a temperature 10 to 40 ° C. higher than the melting point of the total aromatic polyester of the present invention and a shear rate of 1000 / sec is preferably 1000 Pa ⁇ s or less, more preferably 4 to 500 Pa. It is s, more preferably 4 to 250 Pa ⁇ s, and particularly preferably 5 to 100 Pa ⁇ s.
  • the melt viscosity means the melt viscosity measured according to ISO11443.
  • the total aromatic polyester of the present embodiment is polymerized by using a direct polymerization method, a transesterification method, or the like.
  • a melt polymerization method, a solution polymerization method, a slurry polymerization method, a solid phase polymerization method, etc., or a combination of two or more of these is used, and a melt polymerization method or a combination of the melt polymerization method and the solid phase polymerization method is used. Is preferably used.
  • an acylating agent for the polymerized monomer or a monomer having an activated terminal can be used as an acid chloride derivative.
  • the acylating agent include fatty acid anhydrides such as acetic anhydride.
  • the total amount of fatty acid anhydride used is 6-hydroxy-2-naphthoic acid, 4-hydroxybenzoic acid, and 4,4'-dihydroxybiphenyl from the viewpoint of hue. It is preferably less than 1.08 times the hydroxyl group equivalent of, more preferably 1.00 to 1.07 times, further preferably 1.01 to 1.07 times, and 1.01 to 1 It is more preferably .06 times, and particularly preferably 1.02 to 1.06 times.
  • the amount of the ketone bond tends to be 0.0000 to 0.0010 mol% with respect to the total of the ester bond and the ketone bond.
  • catalysts can be used for these polymerizations, and typical ones are potassium acetate, magnesium acetate, stannous acetate, tetrabutyl titanate, lead acetate, sodium acetate, antimony trioxide, and tris (2).
  • 4-Pentandionato) Examples include metal salt-based catalysts such as cobalt (III) and organic compound-based catalysts such as 1-methylimidazole and 4-dimethylaminopyridine.
  • melt polymerization is carried out by starting depressurization to a predetermined decompression degree.
  • an inert gas is introduced, and the pressure is changed from a reduced pressure state to a normal pressure state to a predetermined pressure state, and the total aromatic polyester is discharged from the reaction system.
  • the total aromatic polyester produced by the above polymerization method can be further increased in molecular weight by solid phase polymerization of normal pressure, reduced pressure, or heating in an inert gas.
  • 6-hydroxy-2-naphthoic acid, 4-hydroxybenzoic acid, and 4,4'-dihydroxybiphenyl are acylated with a fatty acid anhydride to form 1,4-phenylene. It is preferable to include a step of transesterifying with a dicarboxylic acid. For all monomers consisting of 6-hydroxy-2-naphthoic acid, 4-hydroxybenzoic acid, 1,4-phenylenedicarboxylic acid, and 4,4'-dihydroxybiphenyl.
  • the amount of 6-hydroxy-2-naphthoic acid used is 40 to 75 mol%, preferably 40 to 70 mol%, more preferably 40 to 65 mol%, still more preferably 40 to 63, from the viewpoint of heat resistance and polymerizable property. Mol%, even more preferably 40-62 mol%, particularly preferably 40-60 mol%, The amount of 4-hydroxybenzoic acid used is 0.5 to 7.5 mol%, preferably 0.5 to 7.0 mol%, more preferably 1.0 to 7.0 from the viewpoint of heat resistance and polymerizable property.
  • the amount of 1,4-phenylenedicarboxylic acid used is 8.5 to 30 mol%, preferably 10 to 30 mol%, more preferably 12 to 28 mol%, and further, from the viewpoint of achieving both a low melting point and heat resistance.
  • 14-28 mol% even more preferably 15-28 mol%, particularly preferably 17-27 mol%
  • the amount of 4,4'-dihydroxybiphenyl used is 8.5 to 30 mol%, preferably 10 to 30 mol%, more preferably 12 to 28 mol%, and further, from the viewpoint of achieving both a low melting point and heat resistance.
  • 14-28 mol%, even more preferably 15-28 mol%, particularly preferably 17-27 mol% The total amount of 6-hydroxy-2-naphthoic acid, 4-hydroxybenzoic acid, 1,4-phenylenedicarboxylic acid, and 4,4'-dihydroxybiphenyl is preferably 100 mol%.
  • the final polymerization temperature is preferably 340 ° C. or lower, more preferably 330 ° C. or lower, further preferably 320 ° C. or lower, even more preferably 310 ° C. or lower, and 300 ° C. or lower. Is particularly preferable.
  • the nitrogen-containing heterocyclic compound used as a catalyst is 1-methylimidazole.
  • a potassium compound and / or a trivalent cobalt compound as a catalyst.
  • the potassium compound used as a catalyst is potassium acetate.
  • the trivalent cobalt compound used as a catalyst is tris (2,4-pentanedionato) cobalt (III).
  • the amount of 1,4-phenylenedicarboxylic acid used (mol%) and the amount of 4,4'-dihydroxybiphenyl used (mol%) is preferably 1.00 mol% or less, more preferably 0.75 mol% or less, further preferably 0.50 mol% or less, and more preferably 0.25 mol% or less. It is even more preferable that the amount of 1,4-phenylenedicarboxylic acid used (mol%) and the amount of 4,4'-dihydroxybiphenyl used (mol%) are equal.
  • polyester resin composition Various fibrous, powdery, plate-like inorganic and organic fillers can be blended in the above-mentioned all-aromatic polyester of the present invention depending on the purpose of use.
  • the inorganic filler blended in the polyester resin composition of the present invention includes fibrous, powdery, and plate-like fillers.
  • fibrous inorganic filler glass fiber, milled glass fiber, asbestos fiber, silica fiber, silica / alumina fiber, alumina fiber, zirconia fiber, boron nitride fiber, silicon nitride fiber, boron fiber, potassium titanate fiber, wollastonite
  • silicate fibers such as magnesium sulfate fibers, aluminum borate fibers
  • inorganic fibrous substances such as metal fibrous materials such as stainless steel, aluminum, titanium, copper and brass.
  • a particularly typical fibrous filler is glass fiber.
  • the powdery granular inorganic filler carbon black, graphite, silica, quartz powder, glass beads, glass balloon, glass powder, calcium silicate, aluminum silicate, kaolin, clay, diatomaceous earth, wollastonite and the like.
  • Acid salts iron oxide, titanium oxide, zinc oxide, antimony trioxide, metal oxides such as alumina, carbonates of metals such as calcium carbonate and magnesium carbonate, sulfates of metals such as calcium sulfate and barium sulfate, and other ferrites.
  • examples of the plate-shaped inorganic filler include mica, glass flakes, talc, and various metal foils.
  • organic fillers examples include aromatic polyester fibers, liquid crystal polymer fibers, aromatic polyamides, and heat-resistant high-strength synthetic fibers such as polyimide fibers.
  • inorganic and organic fillers can be used alone or in combination of two or more.
  • the combined use of the fibrous inorganic filler and the granular or plate-like inorganic filler is a preferable combination in terms of combining mechanical strength, dimensional accuracy, electrical properties, and the like.
  • glass fiber is used as the fibrous filler
  • mica and talc are used as the plate-shaped filler, and the blending amount thereof is 120 parts by mass or less, preferably 20 to 80 parts by mass with respect to 100 parts by mass of the total aromatic polyester. Is.
  • the polyester resin composition is particularly remarkable in improving the thermal deformation temperature, mechanical properties and the like.
  • a converging agent or a surface treatment agent can be used if necessary.
  • the polyester resin composition of the present invention contains the all-aromatic polyester of the present invention as an essential component, and optionally contains an inorganic or organic filler, as long as it does not impair the effects of the present invention.
  • other components may be contained.
  • the other component may be any component, and examples thereof include additives such as other resins, antioxidants, stabilizers, pigments, and crystal nucleating agents.
  • the method for producing the polyester resin composition of the present invention is not particularly limited, and the polyester resin composition can be prepared by a conventionally known method.
  • the polyester molded product of the present invention can be obtained by molding the all-aromatic polyester or polyester resin composition of the present invention.
  • the molding method is not particularly limited, and a general molding method can be adopted. Examples of general molding methods include injection molding, extrusion molding, compression molding, blow molding, vacuum molding, foam molding, rotary molding, gas injection molding, and inflation molding.
  • the polyester molded product obtained by molding the all-aromatic polyester or the like of the present invention has excellent heat resistance. Further, the polyester molded product obtained by molding the polyester resin composition of the present invention has excellent heat resistance and contains an inorganic or organic filler as required, so that the mechanical strength and the like are further improved.
  • the all-aromatic polyester and polyester resin composition of the present invention are excellent in moldability, they can be processed into various three-dimensional molded products, fibers, films and the like.
  • Preferred applications of the polyester molded product of the present invention having the above properties include connectors, CPU sockets, relay switch parts, bobbins, actuators, noise reduction filter cases, electronic circuit boards, heating fixing rolls for OA equipment, and the like. Be done.
  • Example 1 The following raw material monomers, fatty acid metal salt catalysts, and acylating agents were charged into a polymerization vessel equipped with a stirrer, a reflux column, a monomer inlet, a nitrogen inlet, and a depressurization / outflow line, and nitrogen substitution was started.
  • melt viscosity Using a capillograph manufactured by Toyo Seiki Seisakusho Co., Ltd., using an orifice with an inner diameter of 0.5 mm and a length of 30 mm at a temperature 10 to 30 ° C higher than the melting point of all aromatic polyester, at a shear rate of 1000 / sec, ISO11443. The melt viscosity of the total aromatic polyester was measured according to the above.
  • [Ketone bond amount] The amount of ketone bond was calculated by the pyrolysis gas chromatography method described in Polymer Degradation and Stability 76 (2002) 85-94. Specifically, using a pyrolysis device (“PY2020iD” manufactured by Frontier Lab Co., Ltd.), all aromatic polyester is heated in the presence of tetramethylammonium hydroxide (TMAH), and gas is pyrolyzed / methylated. Was generated. This gas is analyzed using gas chromatography (“GC-6890N” manufactured by Agilent Technologies, Inc.), and the amount of ketone bond is calculated from the ratio of the peak area derived from the ketone bond to the peak area derived from the ester bond. did.
  • TMAH tetramethylammonium hydroxide
  • the L value of the polymer was measured using a spectral color difference meter (“SE6000” manufactured by Nippon Denshoku Industries Co., Ltd.).
  • Examples 2 and 3 The type of raw material monomer, amount used (mol%), catalyst, heating rate, and final polymerization temperature are as shown in Table 1, and the prepolymer is prepared under a nitrogen stream at 290 ° C. for 10 hours and at 300 ° C. for 10 hours, 310.
  • a polymer was obtained in the same manner as in Example 1 except that heat treatment (solid phase polymerization) was carried out at ° C. for 10 hours and at 320 ° C. for 10 hours. Moreover, the same evaluation as in Example 1 was performed. The evaluation results are shown in Table 1.
  • Examples 4 and 5 A polymer was obtained in the same manner as in Example 1 except that the type of raw material monomer, the amount used (mol%), the catalyst, the rate of temperature rise, and the final polymerization temperature were as shown in Table 1. Further, the same evaluation as in Example 1 was performed (the melt viscosity of Example 5 was measured at a temperature of 350 ° C.). The evaluation results are shown in Table 1.
  • the temperature was further raised under the speed conditions shown in Table 1, and the final polymerization temperature was set as shown in Table 1, respectively.
  • the pressure was reduced to 10 Torr (ie, 1330 Pa) over 20 minutes, and melt polymerization was carried out while distilling acetic acid, excess acetic anhydride, and other low boiling points.
  • nitrogen is introduced to change the pressure from a reduced pressure state to a pressurized state through normal pressure, and the product is discharged from the lower part of the polymerization vessel and pelletized to obtain a pellet-shaped prepolymer. It was.
  • the obtained prepolymer was heat-treated (solid phase polymerization) at 300 ° C. for 5 hours under a nitrogen stream to obtain the desired polymer.
  • Example 6> The total aromatic polyester obtained in Example 1 and the following components were mixed using a twin-screw extruder to obtain a resin composition.
  • the extrusion conditions are as follows.
  • the blending amount of each component is as shown in Table 2.
  • Fibrous filler Mild fiber EPH-80M manufactured by Nippon Electric Glass Co., Ltd., fiber diameter 10.5 ⁇ m, average fiber length 80 ⁇ m (manufacturer's nominal value)
  • Plate-shaped filler Mica AB-25S manufactured by Yamaguchi Mica Industry Co., Ltd., average particle size 25 ⁇ m
  • Example 6 having a ketone bond amount of 0.0001 mol% had a larger bending strain than Comparative Example 4 having a ketone bond amount of 0.12 mol%. This means that the greater the bending strain, the better the toughness, and thus the problem of the present invention is solved.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
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  • Polyesters Or Polycarbonates (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un polyester entièrement aromatique qui présente très peu de réactions secondaires pendant une réaction de polymérisation et présente une excellente teinte et une excellente ténacité, et une composition de résine de polyester associée. Le problème ci-dessus est résolu par un polyester entièrement aromatique caractérisé en ce qu'il comprend les motifs constitutifs (I), (II), (III) et (IV) ci-dessous en tant que constituants essentiels, la teneur en motif constitutif (I) étant de 40 à 75 % en moles par rapport à l'ensemble des motifs constitutifs, la teneur en motif constitutif (II) étant de 0,5 à 7,5 % en moles par rapport à l'ensemble des motifs constitutifs, la teneur en motif constitutif (III) étant de 8,5 à 30 % en moles par rapport à l'ensemble des motifs constitutifs, la teneur en motif constitutif (IV) étant de 8,5 à 30 % en moles par rapport à l'ensemble des motifs constitutifs, et la teneur totale en motifs constitutifs (I), (II), (III) et (IV) étant de 100 % en moles par rapport à l'ensemble des motifs constitutifs, le polyester entièrement aromatique comprenant des liaisons ester ou une combinaison de liaisons ester et de liaisons cétone dans une molécule de celui-ci, la quantité de la liaison cétone représentant de 0,0000 à 0,0010 % en moles par rapport à la quantité totale des liaisons ester et des liaisons cétone.
PCT/JP2020/015150 2019-04-03 2020-04-02 Polyester entièrement aromatique et composition de résine de polyester WO2020204125A1 (fr)

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CN202080026453.5A CN113767134B (zh) 2019-04-03 2020-04-02 全芳香族聚酯和聚酯树脂组合物
JP2020553558A JP6852233B2 (ja) 2019-04-03 2020-04-02 全芳香族ポリエステル及びポリエステル樹脂組成物

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Cited By (5)

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WO2021085240A1 (fr) * 2019-10-31 2021-05-06 ポリプラスチックス株式会社 Composition de résine et connecteur
WO2022014663A1 (fr) * 2020-07-16 2022-01-20 ポリプラスチックス株式会社 Composition de résine et article moulé à partir de celle-ci
WO2022088565A1 (fr) * 2020-10-30 2022-05-05 金发科技股份有限公司 Polyester à cristaux liquides, composition de polyester à cristaux liquides, et utilisation associée
WO2023145516A1 (fr) * 2022-01-26 2023-08-03 ポリプラスチックス株式会社 Composition de résine cristalline liquide pour connecteurs plans, et connecteur plan l'utilisant
WO2023145517A1 (fr) * 2022-01-26 2023-08-03 ポリプラスチックス株式会社 Composition de résine cristalline liquide pour connecteur plan, et connecteur plan obtenu à l'aide de celle-ci

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