WO2005085320A1 - ポリカーボネート共重合体、ポリカーボネート共重合体組成物及びそれらからなる光学成形品 - Google Patents
ポリカーボネート共重合体、ポリカーボネート共重合体組成物及びそれらからなる光学成形品 Download PDFInfo
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- WO2005085320A1 WO2005085320A1 PCT/JP2005/002744 JP2005002744W WO2005085320A1 WO 2005085320 A1 WO2005085320 A1 WO 2005085320A1 JP 2005002744 W JP2005002744 W JP 2005002744W WO 2005085320 A1 WO2005085320 A1 WO 2005085320A1
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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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/04—Aromatic polycarbonates
- C08G64/06—Aromatic polycarbonates not containing aliphatic unsaturation
-
- 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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/18—Block or graft polymers
- C08G64/183—Block or graft polymers containing polyether sequences
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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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1515—Three-membered rings
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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
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
Definitions
- the present invention relates to a polycarbonate copolymer, a polycarbonate copolymer composition, a polycarbonate resin composition, and an optical molded product using the same. More specifically, a polycarbonate copolymer having a specific repeating structural unit, a polycarbonate copolymer composition containing this copolymer and another polycarbonate resin, and a polycarbonate-based resin composition obtained by blending an acrylic resin with them. And optical molded articles such as lenses and light guide plates obtained by molding them.
- PC resin Polycarbonate (hereinafter sometimes abbreviated as PC) resin is mainly produced using bisphenol A as a raw material, and is used in a wide range of applications because of its excellent transparency, heat resistance, mechanical properties, and the like.
- PC resin is used for optical components such as lenses, light guide plates, and optical disks, there is a problem that the fluidity is low and a satisfactory molded product cannot be obtained. Improvements are desired and various improved polycarbonates have been proposed.
- As a method for improving the fluidity a method has been reported in which the structure of a PC resin is changed by performing copolymerization, modification of molecular chain terminals, and the like.
- Patent Document 1 JP-A-2003-96180
- Patent Document 2 JP-A-61-16923
- Patent Document 3 JP-A-62-79222
- the present invention has been made in view of the above circumstances, and in addition to having significantly improved fluidity during molding and excellent thermal stability, it can respond to a wide range of molding conditions as a molding raw material.
- An object of the present invention is to provide a polycarbonate copolymer, a polycarbonate copolymer composition, a polycarbonate-based resin composition, and an optical molded product comprising the same, which provide good optical molded products.
- the present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that a PC copolymer having a specific amount of a specific repeating unit and a viscosity number in a specific range is used. It was found that the purpose was achieved. That is, it has been found that when this PC copolymer is used as a material for an optical molded product, the transferability is good, the luminance is improved, and the birefringence is reduced because the residual distortion is small.
- the present invention has been completed based on powerful knowledge. That is, the present invention provides the following polycarbonate copolymer, polycarbonate copolymer composition, and an optical molded product comprising the same.
- R 1 and R 2 each independently represent an alkyl group having 16 carbon atoms.
- X is a single bond, an alkylene group having 18 to 18 carbon atoms, an alkylidene group having 2 to 8 carbon atoms, a cycloalkylene group having 5 to 15 carbon atoms, a cycloalkylidene group having 5 to 15 carbon atoms, —S—, _S ⁇ _, -SO-, _ ⁇ -, -CO- or the following formula (III 1) or the following formula (III 2)
- the bond represented by R 3 and R 4 each independently represent an alkyl group having 13 to 13 carbon atoms, and Y represents a linear or branched alkylene group having 2 to 15 carbon atoms.
- a-d are integers of 0-4, respectively, and n is an integer of 2-450.
- the content of the repeating unit represented by the above general formula ( ⁇ ) is from 1 to 30% by mass, and the viscosity number is from 30 to 71. Coalescing.
- the polycarbonate copolymer according to the above 1 one 3 or Re noise flow value (Q value) is 30 X 10- 2 mLZs or more at 280 ° C.
- a polycarbonate copolymer composition containing the polycarbonate copolymer according to any one of the above items 14 to 14 and another polycarbonate resin.
- An optical molded article comprising the polycarbonate copolymer according to any one of the above items 14 to 14, the polycarbonate copolymer composition according to the above item 5 or the polycarbonate resin composition according to the above item 6 or 7.
- a light guide plate comprising the polycarbonate copolymer according to any one of the above items 14 to 14, the polycarbonate copolymer composition according to the above item 5 or the polycarbonate resin composition according to the above item 6 or 7.
- a lens comprising the polycarbonate copolymer according to any one of the above items 14 to 14, the polycarbonate copolymer composition according to the above item 5 or the polycarbonate resin composition according to the above item 6 or 7.
- a polycarbonate copolymer which provides an optical molded article having improved luminance and reduced birefringence
- a polycarbonate copolymer composition containing the same and a polycarbonate resin composition.
- the PC copolymer of the present invention is a phenol-modified diol copolymerized polycarbonate, and can be produced by a conventional production method called an interfacial polymerization method. That is, it can be produced by a method of reacting a carbonate precursor such as divalent phenol, phenol-modified diol and phosgene. Specifically, for example, a divalent phenol or a phenol-modified diol is added in an inert solvent such as methylene chloride in the presence of a known acid acceptor or a molecular weight regulator and, if necessary, a catalyst or a branching agent. And a carbonate precursor such as phosgene.
- a carbonate precursor such as phosgene.
- the PC copolymer of the present invention can be obtained by copolymerizing a divalent phenol and a phenol-modified diol described below by an interfacial polymerization method, and has the following general formulas (I) and (II)
- R 1 and R 2 each independently represent an alkyl group having 16 carbon atoms, and the alkyl group is linear, branched, or cyclic. Any of these may be used.
- Specific examples of the alkyl group include a methynole group, an ethyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a tert-butyl group, an n-pentynolenole group, an isopentyl group, and an n-hexyl group. Group, isohexyl group, cyclopentyl group, cyclohexyl group and the like.
- a and b represent the number of substitutions of R 1 and R 2 , respectively, and are integers of 0-4.
- R 1 is more, when a plurality of R 1 have a plurality Yogu R 2 is also even have different dates of the same mutually, a plurality of R 2 may be the same or different from each other.
- X is a single bond, an alkylene group having 18 to 18 carbon atoms (such as a methylene group, an ethylene group, a propylene group, a butylene group, a pentylylene group, and a hexylene group); and an alkylidene group having 2 to 8 carbon atoms (such as an ethylidene group, Isopropylidene group, etc.), C5-C15 cycloalkylene group (eg, cyclopentylene group, cyclohexylene group, etc.), C5-C15 cycloalkylidene group (eg, cyclopentylidene group, cyclohexylidene group, etc.) ), —S—, one S ⁇ one, -SO one, _ ⁇ one, _CO_ bond or the following formula (III-1-1) or the following formula ( ⁇ —2)
- 2,2_bis (4-hydroxyphenyl) propane [commonly known as bisphenol A] is preferable.
- Bisphenols other than bisphenol A include, for example, bis (4-hydroxyphenyl) methane; 1,1_bis (4-hydroxyphenyl) ethane; 2,2_bis (4-hydroxyphenyl) ethane ) Butane; 2,2-bis (4-hydroxyphenyl) octane; 2,2-bis (4-hydroxyphenyl) octane 2,2-bis (4-hydroxy-13-methylphenyl) propane; bis (4-hydroxyphenyl) naphthylmethane; 1,1_bis (4-hydroxy-t_butylphenyl) propane; 2,2_bis 2,4-bis (4-hydroxy-3,5-tetramethylphenyl) propane; 2,2-bis (4-hydroxy-3-cyclobutenyl) propane; 2,4-bis (4-hydroxy-3,5-tetramethylphenyl)
- the molecular weight regulator various types are generally used as long as they are used for the polymerization of PC resin.
- the monovalent phenol include phenol, o-n-butylphenol, mn-butylphenol, pn-butylphenol, o_isobutynolephenol, m-isobutylphenol, p-isobutylphenol, o_t-butylphenol, m_t—butynolephenore, ⁇ —t—butinolephenore, o_n—pentinolephenore, m_n_pentinolephenore, p_n_pentinolephenore, o_n—hexenolephenore, m_n_hexenolephenol, p_n_hexinolephenol, p-t-otatinolephenol, o-cyclohexylphenol, m-cyclohexylphenol, p-cyclotatinolephenol,
- a phase transfer catalyst such as a tertiary amine or a salt thereof, a quaternary ammonium salt, or a quaternary phosphonium salt can be preferably used.
- Tertiary amines include, for example, triethylamine, tributinoleamine, N, N-dimethylcyclohexylamine, pyridine, dimethylaniline and the like.
- Tertiary amine salts include, for example, those tertiary amines Hydrochloride, bromate and the like.
- quaternary ammonium salts include, for example, trimethylbenzylammonium chloride, triethylbenzylammonium chloride, tributylbenzylammonium chloride, trioctylmethylammonium chloride, tetrabutylammonium chloride, tetrabutylammonium chloride, and tetrabutylammonium chloride.
- quaternary phosphonium salts such as mubromide include tetrabutylphosphonium chloride and tetrabutylphosphonium bromide. Is mentioned.
- These catalysts may be used alone or in combination of two or more. Of the above catalysts, tertiary amines are preferred, and triethylamine is particularly preferred.
- inert organic solvents there are various kinds of inert organic solvents.
- dichloromethane methylene chloride
- trichloromethane carbon tetrachloride
- 1,1-dichloroethane 1,2-dichloroethane
- 1,1,1-trichloro tan
- 1,1,2-trik n t3 tan 1, 1, 1, 2-—tetracopentane
- 1,1,2,2-tetraclotane pentachloroethane
- chlorinated hydrocarbons such as benzene, tropene, and acetofenone .
- methylene chloride is particularly preferred.
- branching agent examples include 1,1,1,1-tris (4-hydroxyphenyl) ethane; 4,4 '-[1- [4- [1- (4-hydroxyphenyl) -1-methylethyl] ] Phenyl] ethylidene] bisphenole; ⁇ , ⁇ ', ⁇ ,, tris (4-hydroxypheninole) -1,3,5-triisopropylbenzene; 1— [ ⁇ -methyl- (4, —hydroxy [Phenyl) ethyl] -4-[[ ⁇ ,, '-bis (4, dioxypheninole) ethynole] benzene; 3 or more functional groups such as phloroglysin, trimellitic acid, and isatin bis (o_crezo monole) Can also be used.
- the phenol-modified diol used in the present invention has the following general formula (Ila)
- R 3 and R 4 each independently represent an alkyl group having 13 to 13 carbon atoms
- Y represents a linear or branched alkylene group having 2 to 15 carbon atoms
- c and d are integers from 0-4, and n is an integer from 2-450.
- R 3 and R 4 examples include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group. If there are a plurality of R 3, when a plurality of R 3 to Yogu R 4 have multiple be the same as or different from each other, a plurality of R 4 is each independently But they may be different.
- Examples of the linear or branched alkylene group having 2 to 15 carbon atoms represented by Y include alkylene groups such as ethylene group, propylene group, butylene group, isobutylene group, pentylene group and isopentylene group, ethylidene group, propylidene group, Examples include alkylidene residues such as an isopropylidene group, a butylidene group, an isobutylidene group, a pentylidene group and an isopentylidene group.
- n is preferably 2200, more preferably 6-70.
- the phenol-modified diol represented by the above general formula (Ila) is a compound derived from hydroxybenzoic acid or its alkyl ester, acid chloride and polyether diol.
- the phenol-modified diol can be synthesized by the methods proposed in JP-A-62-79222, JP-A-60-79072, JP-A-2002-173465, and the like. It is desirable to appropriately purify the phenol-modified diol obtained by the method.
- Examples of the purification method include a method in which the inside of the system is depressurized at the latter stage of the reaction to distill off an excess of the raw material (for example, parahydroxybenzoic acid), and that the phenol-modified diol is washed with water or an aqueous alkali solution (for example, aqueous sodium hydrogen carbonate solution). A method of doing this is desirable.
- alkyl hydroxybenzoate examples include methyl hydroxybenzoate and ethyl ethyl hydroxybenzoate.
- Polyether diol is represented by HO- (Y-O) -H and is a linear or branched alkyl ether having 2 to 15 carbon atoms.
- the repeating number n of the ether portion of the polyether diol is preferably 2,200, preferably 670. When n is 2 or more, the efficiency in copolymerizing the phenol-modified diol is good. When n is 70 or less, there is an advantage that the decrease in heat resistance of the PC copolymer is small.
- acid chlorides include those obtained from hydroxybenzoic acid and phosgene. More specifically, it can be obtained by the method described in Japanese Patent No. 2652707 or the like.
- Hydroxybenzoic acid or its alkyl ester may be any of a para-form, a meta-form and an ortho-form, but the para-form is preferred from the viewpoint of a copolymerization reaction.
- the ortho-form corresponds to the hydroxyl group. There is a possibility that the reactivity of the copolymer is inferior due to steric hindrance.
- the phenol-modified diol is preferably used as a methylene chloride solution as much as possible in order to prevent deterioration and the like. If it cannot be used as a methylene chloride solution, it can be used as an aqueous alkali solution such as Na ⁇ H.
- the amount of the phenol-modified diol in the PC copolymer By increasing the amount of the phenol-modified diol in the PC copolymer, the fluidity is improved, but the heat resistance is reduced. Therefore, it is preferable to select the copolymerization amount of the phenol-modified diol according to the desired balance between fluidity and heat resistance. If the phenol-modified copolymer content exceeds 40% by mass, as shown in JP-A-62-79222, it becomes an elastomer and may not be applicable to the same applications as general PC resins. There is. In order to maintain heat resistance of 100 ° C. or more, the amount of the phenol-modified diol residue contained in the PC copolymer needs to be 110 to 30% by mass in the present invention. %, More preferably 1 to 15% by mass.
- Mv viscosity average molecular weight
- the viscosity number is 30 or more, the mechanical properties are good, and when the viscosity number is 70 or less, the copolymerization effect of the comonomer is favorably exhibited.
- the viscosity number is a value measured according to ISO 1628-4 (1999).
- PC copolymer of the present invention in the flow value (Q value) it is preferred instrument more preferably at least 40 X 10- 2 mL / s at 30 X 10- 2 mL / s or more 280 ° C.
- the flow value (Q value) conforming to JIS K7210, a melt viscosity measured at elevated type flow tester, if it is the flow value (Q value) force S30 X 10- 2 mL / s or more, PC copolycondensation
- the melt viscosity of the coalescence cannot be too high.
- PC copolymer composition and PC resin composition described below The same applies to the PC copolymer composition and PC resin composition described below.
- the PC copolymer of the present invention can be used as it is as a material for various optical molded articles.
- the PC copolymer of the present invention may be used as a PC copolymer composition obtained by mixing another PC resin with the PC copolymer of the present invention. Good.
- These PC copolymers and PC copolymer compositions are also used for light guide plates, optical lenses, etc.
- a PC-based resin composition containing the compound or (D) a polysiloxane compound having at least one selected from an alkoxy group, a vinyl group and a phenyl group.
- the other PC resin to be mixed with the PC copolymer of the present invention a commercially available PC resin can be used.
- the amount of the other PC resin is preferably 10 200 parts by mass, more preferably 300 parts by mass or less, based on 100 parts by mass of the PC copolymer, from the viewpoint of not impairing the effects of the present invention.
- the acrylic resin as the component (B) refers to a polymer having at least one kind selected from the monomer units of acrylic acid, an acrylate ester, atarilonitrile and a derivative thereof, and a homopolymer or styrene, butadiene or the like.
- PMMA polyacrylic acid, polymethyl methacrylate (PMMA), polyacrylonitrile, ethyl acrylate-acrylic acid_2-chloroethyl copolymer, acrylate-n-butyl-acrylic nitrile copolymer, acrylonitrile Styrene copolymers, acrylonitrile-butadiene copolymers, acrylonitrile-butadiene-styrene copolymers and the like can be mentioned.
- PMMA polymethyl methacrylate
- PMMA can be particularly preferably used.
- the acrylic resin of the component (B) needs to have a molecular weight of 200 to 100,000, and preferably 21 to 60,000.
- the molecular weight is from 200 to 100,000, the phase separation between the PC copolymer and other PC resin and the acrylic resin does not become too fast during molding, so that sufficient transparency is obtained in the molded product.
- PMMA polymethyl methacrylate
- PMMA polymethyl methacrylate
- the mixing amount of the acrylic resin is usually 0.1% based on 100 parts by mass of the (A) PC copolymer of the present invention or a PC copolymer composition obtained by mixing the PC copolymer of the present invention with another PC resin. It is about 01 1 part by mass, preferably 0.05-0.5 part by mass, more preferably 0.1-0.3 part by mass.
- the amount of the acrylic resin is 0.01 part by mass or more, the transparency of the molded article is improved, and when the amount is 1 part by mass or less, the transparency can be maintained without impairing other desired physical properties. it can.
- the alicyclic epoxy compound as the component (C) is an alicyclic epoxy group, that is, a cyclic aliphatic compound having an epoxy group in which one atom of oxygen is added to an ethylene bond in an aliphatic ring.
- alicyclic epoxy group that is, a cyclic aliphatic compound having an epoxy group in which one atom of oxygen is added to an ethylene bond in an aliphatic ring.
- those represented by the following formulas (1) and (10) shown in JP-A-11-158364 are preferably used.
- the compound represented by the formula (1), the formula (7) or the formula (10) has excellent compatibility with a PC resin and impairs transparency. It is more preferably used in that it does not occur.
- the compounding amount of the alicyclic epoxy compound of the component (C) is usually about 0.01 to 11 parts by mass, preferably 0.02 to 0.2 part by mass, per 100 parts by mass of the component (A). is there. When the amount is 0.01 part by mass or more, the effect of addition can be obtained. When the amount is 1 part by mass or less, transparency without promoting phase separation can be obtained.
- the polysiloxane compound as the component (D) is obtained by introducing at least one functional group selected from an alkoxy group (for example, a methoxy group and an ethoxy group), a butyl group and a phenyl group into a silicone compound.
- Functional silicone compounds such as organopolysiloxane.
- the component (D) is a compound that acts as a stabilizer in the PC resin. When the component (D) is blended, yellowing due to thermal deterioration during molding, poor appearance such as silver (silver strips), and air bubbles are mixed. Can be prevented.
- the amount of the component (D) is appropriately selected usually from the range of about 0.01 to 3 parts by mass, preferably from 0.05 to 2 parts by mass, based on 100 parts by mass of the component (A). When the amount is 0.01 part by mass or more, the effect of addition is exhibited, and when the amount is 3 parts by mass or less, there is no fogging of the molded article.
- PC copolymer, PC copolymer composition, and PC-based resin composition of the present invention in addition to the above-described components, various additions may be made as needed, as long as the effects of the present invention are not impaired. You may mix the agent Les ,.
- various additives include antioxidants such as arylphosphine, phosphite, phosphate, and hindered phenol, ultraviolet absorbers such as benzotriazole and benzophenone, and hindered amine.
- Quantification was performed by HPLC (high-performance liquid chromatography) under the following conditions, based on a calibration curve created using standard products.
- Production Example 2-4 Synthesis of Polytetramethylene Glyconolevis (4-hydroxybenzoate)]
- polytetramethylene glycol monobis (4-hydroxybenzoate) was obtained.
- Tube-type reactor power The delivered reaction solution is continuously introduced into a 40-L baffle tank reactor equipped with baffles equipped with swept-back wings, and is further charged with a sodium hydroxide aqueous solution of BPA at 2.8 L / hr.
- a 25 mass% aqueous sodium hydroxide solution was supplied at a flow rate of 0.07 L / hr, water was supplied at a flow rate of 17 L / hr, and a 1 mass% aqueous triethylamine solution was supplied at a flow rate of 0.64 L / hr, and the reaction was carried out at 29-32 ° C.
- the reaction solution was continuously withdrawn from the tank reactor and allowed to stand, thereby separating and removing the aqueous phase and collecting the methylene chloride phase.
- the polycarbonate oligomer solution thus obtained had an oligomer concentration of 329 g / L and a chromate formate group concentration of 0.74 mol ZL.
- a methylene chloride solution of p_tert-butylphenol (PTBP) (PTBP9, 2.9 g dissolved in 0.3 L of methylene chloride), a sodium hydroxide aqueous solution of BPA (266 g of NaOH 2 and 0.9 g of sodium dithionite were added to water 3
- a solution prepared by dissolving 443 g of BPA in an aqueous solution dissolved in 9 L) was added thereto, and a polymerization reaction was carried out for 30 minutes. After diluting 30 L of methylene chloride for stirring for 10 minutes, the organic phase containing the PC copolymer and the aqueous phase containing excess BPA and NaPAH were separated, and the organic phase was isolated.
- the methylene chloride solution of the PC copolymer thus obtained was washed successively with 15% by volume of a 0.03 mol / L aqueous solution of sodium hydroxide and 0.2 mol / L hydrochloric acid, and then washed. The washing with pure water was repeated until the electric conductivity in the aqueous phase after washing became 0.01 ⁇ SZm or less.
- the methylene chloride solution of the PC copolymer obtained by washing was concentrated and pulverized, and the obtained flake was dried at 100 ° C. under reduced pressure.
- the amount of polytetramethylene glycol-bis- (4-hydroxybenzoate) residue determined by NMR was 4.5% by mass.
- BR83 trade name, manufactured by Mitsubishi Rayon Co., Ltd., acrylic resin, molecular weight 40,000
- KR511 trade name, manufactured by Shin-Etsu Silicone Co., Ltd., organopolysiloxane having methoxy group and bur group
- Celloxide 2021P (trade name, manufactured by Daicel Chemical Industries, Ltd., alicyclic epoxy compound) 0.05 parts by mass
- ADK STAB PEP36 (trade name, manufactured by Asahi Denka Kogyo Co., Ltd.) 0.05 parts by mass were blended and granulated at a resin temperature of 260 ° C.
- the methylene chloride solution of the PC copolymer thus obtained was washed with 15% by volume of a 0.03 mol / L aqueous sodium hydroxide solution and 0.2 mol / L hydrochloric acid, and then washed. Wash with pure water until the electric conductivity in the aqueous phase becomes 0.01 ⁇ SZm or less was repeated.
- the methylene chloride solution of the PC copolymer obtained by washing was concentrated and dried to obtain a solid polymer.
- the resulting polymer had a soft, rubbery feel (elastomer 'properties).
- the amount of polytetramethyleneglyconolebis (4-hydroxybenzoate) residue determined by NMR was 42% by mass, and Tg was -30 ° C or less.
- Adecastab PEP36 (trade name, manufactured by Asahi Denka Kogyo KK, phosphorus-based antioxidant) was mixed with 100 parts by mass of the PC copolymer obtained in Example 1 in an amount of 0.05 part by mass, and a 40 mm ⁇ extruder with a vent was blended. Was granulated at a resin temperature of 250 ° C. to obtain pellets.
- the obtained pellet was injection molded to form a lens.
- the molding conditions were a resin temperature of 260 ° C and a holding pressure of 160 MPa.
- the obtained lens was subjected to a distortion evaluation method [using a strain gauge (Strain Detector) from HEIDON Co., Ltd., and determined by visual observation through the transmission window of the strain gauge by the orthogonal Nicols method] to obtain a lens with a center radius of 9 mm. No optical coloring was observed over the entire area.
- a molded product of 25 ⁇ 30 ⁇ 3.0 mm was prepared from the above pellets, and the total light transmittance was measured. As a result, it was 90.5%.
- a convex lens was molded under the same conditions as in Example 10 except that the pellets obtained in Example 8 were used.
- the obtained lens was determined by the same strain evaluation method as in Example 10 and had no optical coloring over the entire area of the center radius of the lens within 9 mm.
- the resulting mixture was granulated at a resin temperature of 250 ° C. by a 40 mm ⁇ extruder with a vent to obtain pellets.
- a lens was formed using the same mold and injection molding machine as in Example 10. Molding was performed with the resin temperature changed to 260 ° C, 270 ° C, and 280 ° C under the conditions of a holding pressure of 160 MPa.
- Example 10 As a result, at a resin temperature of 260 ° C, deep coloration was observed in a region with a central portion radius of 9 mm or less according to the same strain evaluation method as in Example 10, and optical coloring was observed as in Example 10. A lens that could not be obtained was not obtained.
- the resin temperature was set to 280 ° C., it was possible to obtain a lens having almost no optical coloring as in Example 10, as determined by the above-described strain evaluation method.
- 0.05 parts by mass of Kogyo Kogyo Co., Ltd., phosphorus-based antioxidant were blended, and granulated at a resin temperature of 250 ° C. with a vented 40 mm ⁇ extruder to obtain pellets.
- the obtained pellet was injection-compressed to produce a lens.
- the injection molding machine used had a clamping force of 980 kN and a resin temperature of 270. C or 250. C, mold temperature is 120. C, 100. C or 80.
- Lens distortion was evaluated by the following distortion evaluation method. Table 3 shows the evaluation results.
- strain gauge strain Detector
- HIDON Haydon
- the resin temperature was 280 ° (the mold temperature was 100 ° C).
- a molded product having a pellet force of 25 ⁇ 30 ⁇ 3.0 mm was prepared, and the total light transmittance was measured. As a result, it was 91.5%.
- the prism of the light guide plate obtained in Example 16 and Comparative Example 4 was subjected to scanning laser microscopy. (Lasertec, SLM700). When the height of the unevenness of the prism of the light guide plate obtained in Example 16 was 100, the height of the unevenness of the prism of the light guide plate obtained in Comparative Example 4 was 90.
- the PC copolymer of the present invention is different from the conventionally known polytetramethylene glycol-bis (4-hydroxybenzoate) copolymerized polycarbonate, which exhibits elastomeric properties, for obtaining an optical molded product. It has suitable moldability and transparency.
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Polyesters Or Polycarbonates (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/588,905 US7662905B2 (en) | 2004-03-03 | 2005-02-21 | Copolycarbonate, copolycarbonate composition, and optical molded article obtained therefrom |
KR1020067017846A KR101148730B1 (ko) | 2004-03-03 | 2005-02-21 | 폴리카보네이트 공중합체, 폴리카보네이트 공중합체 조성물및 이들로 이루어진 광학 성형품 |
DE112005000328T DE112005000328T5 (de) | 2004-03-03 | 2005-02-21 | Copolycarbonat, Copolycarbonatzusammensetzung und daraus erhaltener optischer Formartikel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004058462A JP4792202B2 (ja) | 2004-03-03 | 2004-03-03 | ポリカーボネート共重合体、ポリカーボネート共重合体組成物及びそれらからなる光学成形品 |
JP2004-058462 | 2004-03-03 |
Publications (1)
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WO2005085320A1 true WO2005085320A1 (ja) | 2005-09-15 |
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PCT/JP2005/002744 WO2005085320A1 (ja) | 2004-03-03 | 2005-02-21 | ポリカーボネート共重合体、ポリカーボネート共重合体組成物及びそれらからなる光学成形品 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7662905B2 (ja) |
JP (1) | JP4792202B2 (ja) |
KR (1) | KR101148730B1 (ja) |
CN (1) | CN100473677C (ja) |
DE (1) | DE112005000328T5 (ja) |
TW (1) | TW200602383A (ja) |
WO (1) | WO2005085320A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009037974A1 (ja) * | 2007-09-21 | 2009-03-26 | Idemitsu Kosan Co., Ltd. | 熱可塑性樹脂組成物及びそれからなる成形体 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4541001B2 (ja) * | 2004-02-19 | 2010-09-08 | 出光興産株式会社 | ポリカーボネート樹脂製造用コモノマー及びその製造方法 |
JP4663994B2 (ja) * | 2004-02-19 | 2011-04-06 | 出光興産株式会社 | ポリカーボネート共重合体の製造方法 |
JP4731134B2 (ja) * | 2004-07-01 | 2011-07-20 | 出光興産株式会社 | ポリカーボネート共重合体の製造方法及びポリカーボネート共重合体 |
JP5063873B2 (ja) | 2005-07-05 | 2012-10-31 | 出光興産株式会社 | 光拡散性ポリカーボネート系樹脂組成物、および同樹脂組成物を用いた光拡散板 |
JP5654727B2 (ja) * | 2008-06-17 | 2015-01-14 | 出光興産株式会社 | ポリカーボネート共重合体およびその製造方法、樹脂組成物ならびに成形品 |
JP5164827B2 (ja) * | 2008-12-26 | 2013-03-21 | 出光興産株式会社 | 熱可塑性樹脂組成物、その成形体及びその機器筐体 |
WO2013088796A1 (ja) * | 2011-12-13 | 2013-06-20 | 出光興産株式会社 | 芳香族ポリカーボネート樹脂組成物及び光学成形品 |
JP5879124B2 (ja) | 2011-12-28 | 2016-03-08 | 出光興産株式会社 | ポリカーボネート樹脂組成物ペレットの製造方法 |
JP6575979B2 (ja) * | 2014-07-09 | 2019-09-18 | 出光興産株式会社 | 芳香族ポリカーボネート樹脂組成物及びその成形品 |
KR102219311B1 (ko) | 2018-08-10 | 2021-02-24 | 주식회사 엘지화학 | 폴리카보네이트 및 이의 제조방법 |
Citations (1)
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US4607070A (en) * | 1983-09-30 | 1986-08-19 | Bayer Aktiengesellschaft | Polyether-copolycarbonates for dialysis membranes |
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US4476294A (en) * | 1983-12-16 | 1984-10-09 | General Electric Company | Copolyester-carbonate resins |
JPS6116923A (ja) | 1984-07-04 | 1986-01-24 | Mitsubishi Gas Chem Co Inc | コ−ポリカ−ボネ−ト樹脂の製法 |
US4663399A (en) * | 1985-08-22 | 1987-05-05 | General Electric Company | Polycarbonate-polyether block copolymers, polymer blends containing same and intermediates for the production thereof |
JP2001040083A (ja) * | 1998-07-07 | 2001-02-13 | Ricoh Co Ltd | 芳香族ポリカーボネート樹脂の製造法 |
US6103777A (en) * | 1998-12-18 | 2000-08-15 | Bayer Corporation | Thermoplastic composition suitable for optical applications having low haze values |
ES2311018T3 (es) * | 2000-07-11 | 2009-02-01 | Teijin Chemicals, Ltd. | Lente plastica. |
JP3516908B2 (ja) * | 2000-08-18 | 2004-04-05 | 出光石油化学株式会社 | 芳香族ポリカーボネート樹脂組成物および成形品 |
US20020107334A1 (en) * | 2000-12-05 | 2002-08-08 | Sivaram Krishnan | Tinted plastic articles and thermoplastic composition for its preparation |
JP2003096180A (ja) | 2001-09-27 | 2003-04-03 | Idemitsu Petrochem Co Ltd | 直鎖状ポリカーボネート |
EP1489123B1 (en) * | 2002-03-28 | 2009-09-23 | Teijin Chemicals, Ltd. | Copolycarbonate and heat-resistant part comprising the copolymer |
JP4663994B2 (ja) * | 2004-02-19 | 2011-04-06 | 出光興産株式会社 | ポリカーボネート共重合体の製造方法 |
JP4914027B2 (ja) * | 2005-06-08 | 2012-04-11 | 出光興産株式会社 | 光拡散性ポリカーボネート系樹脂組成物、および同樹脂組成物を用いた光拡散板 |
JP5063873B2 (ja) * | 2005-07-05 | 2012-10-31 | 出光興産株式会社 | 光拡散性ポリカーボネート系樹脂組成物、および同樹脂組成物を用いた光拡散板 |
-
2004
- 2004-03-03 JP JP2004058462A patent/JP4792202B2/ja not_active Expired - Fee Related
-
2005
- 2005-02-21 US US10/588,905 patent/US7662905B2/en active Active
- 2005-02-21 WO PCT/JP2005/002744 patent/WO2005085320A1/ja active Application Filing
- 2005-02-21 DE DE112005000328T patent/DE112005000328T5/de not_active Withdrawn
- 2005-02-21 KR KR1020067017846A patent/KR101148730B1/ko not_active IP Right Cessation
- 2005-02-21 CN CNB2005800065819A patent/CN100473677C/zh active Active
- 2005-03-01 TW TW094106142A patent/TW200602383A/zh not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4607070A (en) * | 1983-09-30 | 1986-08-19 | Bayer Aktiengesellschaft | Polyether-copolycarbonates for dialysis membranes |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009037974A1 (ja) * | 2007-09-21 | 2009-03-26 | Idemitsu Kosan Co., Ltd. | 熱可塑性樹脂組成物及びそれからなる成形体 |
JPWO2009037974A1 (ja) * | 2007-09-21 | 2011-01-06 | 出光興産株式会社 | 熱可塑性樹脂組成物及びそれからなる成形体 |
Also Published As
Publication number | Publication date |
---|---|
KR101148730B1 (ko) | 2012-05-25 |
US7662905B2 (en) | 2010-02-16 |
US20080287610A1 (en) | 2008-11-20 |
DE112005000328T5 (de) | 2007-01-18 |
CN1926171A (zh) | 2007-03-07 |
TWI363066B (ja) | 2012-05-01 |
JP2005247947A (ja) | 2005-09-15 |
CN100473677C (zh) | 2009-04-01 |
JP4792202B2 (ja) | 2011-10-12 |
TW200602383A (en) | 2006-01-16 |
KR20060134094A (ko) | 2006-12-27 |
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