WO2023200244A1 - 재활용 플라스틱 합성용 단량체 조성물, 이의 제조방법, 그리고 이를 이용한 재활용 플라스틱, 및 성형품 - Google Patents
재활용 플라스틱 합성용 단량체 조성물, 이의 제조방법, 그리고 이를 이용한 재활용 플라스틱, 및 성형품 Download PDFInfo
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- WO2023200244A1 WO2023200244A1 PCT/KR2023/004929 KR2023004929W WO2023200244A1 WO 2023200244 A1 WO2023200244 A1 WO 2023200244A1 KR 2023004929 W KR2023004929 W KR 2023004929W WO 2023200244 A1 WO2023200244 A1 WO 2023200244A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- monomer composition
- aromatic diol
- synthesizing
- diol compound
- compound
- Prior art date
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- 239000000178 monomer Substances 0.000 title claims abstract description 106
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- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- -1 aromatic diol compound Chemical class 0.000 claims abstract description 127
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- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 24
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- 125000000217 alkyl group Chemical group 0.000 claims description 10
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- ORFSSYGWXNGVFB-UHFFFAOYSA-N sodium 4-amino-6-[[4-[4-[(8-amino-1-hydroxy-5,7-disulfonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-5-hydroxynaphthalene-1,3-disulfonic acid Chemical compound COC1=C(C=CC(=C1)C2=CC(=C(C=C2)N=NC3=C(C4=C(C=C3)C(=CC(=C4N)S(=O)(=O)O)S(=O)(=O)O)O)OC)N=NC5=C(C6=C(C=C5)C(=CC(=C6N)S(=O)(=O)O)S(=O)(=O)O)O.[Na+] ORFSSYGWXNGVFB-UHFFFAOYSA-N 0.000 description 3
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- 125000005916 2-methylpentyl group Chemical group 0.000 description 2
- XLSZMDLNRCVEIJ-UHFFFAOYSA-N 4-methylimidazole Chemical compound CC1=CNC=N1 XLSZMDLNRCVEIJ-UHFFFAOYSA-N 0.000 description 2
- SDDLEVPIDBLVHC-UHFFFAOYSA-N Bisphenol Z Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)CCCCC1 SDDLEVPIDBLVHC-UHFFFAOYSA-N 0.000 description 2
- 238000012695 Interfacial polymerization Methods 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
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- 125000000623 heterocyclic group Chemical group 0.000 description 2
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- 125000006218 1-ethylbutyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
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- HMWIHOZPGQRZLR-UHFFFAOYSA-N 2-hexadecylphenol Chemical compound CCCCCCCCCCCCCCCCC1=CC=CC=C1O HMWIHOZPGQRZLR-UHFFFAOYSA-N 0.000 description 1
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- FUOZJYASZOSONT-UHFFFAOYSA-N 2-propan-2-yl-1h-imidazole Chemical compound CC(C)C1=NC=CN1 FUOZJYASZOSONT-UHFFFAOYSA-N 0.000 description 1
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- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002891 organic anions Chemical class 0.000 description 1
- 150000002892 organic cations Chemical class 0.000 description 1
- MPQXHAGKBWFSNV-UHFFFAOYSA-N oxidophosphanium Chemical group [PH3]=O MPQXHAGKBWFSNV-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- QBDSZLJBMIMQRS-UHFFFAOYSA-N p-Cumylphenol Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=CC=C1 QBDSZLJBMIMQRS-UHFFFAOYSA-N 0.000 description 1
- NKTOLZVEWDHZMU-UHFFFAOYSA-N p-cumyl phenol Natural products CC1=CC=C(C)C(O)=C1 NKTOLZVEWDHZMU-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 1
- 125000003538 pentan-3-yl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000011085 pressure filtration Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 150000003856 quaternary ammonium compounds Chemical class 0.000 description 1
- 150000004023 quaternary phosphonium compounds Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003808 silyl group Chemical group [H][Si]([H])([H])[*] 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000565 sulfonamide group Chemical group 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 1
- RKHXQBLJXBGEKF-UHFFFAOYSA-M tetrabutylphosphanium;bromide Chemical compound [Br-].CCCC[P+](CCCC)(CCCC)CCCC RKHXQBLJXBGEKF-UHFFFAOYSA-M 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000009283 thermal hydrolysis Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- UCPYLLCMEDAXFR-UHFFFAOYSA-N triphosgene Chemical compound ClC(Cl)(Cl)OC(=O)OC(Cl)(Cl)Cl UCPYLLCMEDAXFR-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/055—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group
- C07C37/0555—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group being esterified hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/32—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D317/34—Oxygen atoms
- C07D317/36—Alkylene carbonates; Substituted alkylene carbonates
- C07D317/38—Ethylene carbonate
-
- 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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/22—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
- C08J11/24—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
-
- 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
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/18—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material
- C08J11/28—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic compounds containing nitrogen, sulfur or phosphorus
-
- 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
- C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Definitions
- the present invention relates to a monomer composition for synthesizing recycled plastic containing a high-purity aromatic diol compound recovered through recycling by chemical decomposition of polycarbonate resin, a manufacturing method thereof, and recycled plastic and molded products using the same.
- Polycarbonate is a thermoplastic polymer that has excellent properties such as excellent transparency, ductility, and relatively low manufacturing costs.
- Chemical decomposition of polycarbonate refers to the process of obtaining a monomeric aromatic diol compound (e.g., Bisphenol A (BPA)) through decomposition of polycarbonate and then using it for polymerization to obtain high purity polycarbonate.
- BPA Bisphenol A
- Such chemical decomposition include thermal decomposition, hydrolysis, and alcohol decomposition.
- the most common method is alcohol decomposition, but methanol decomposition has the problem of using methanol, which is harmful to the human body. In the case of ethanol, high temperature and high pressure conditions are required and the yield is not high.
- the present invention is to provide a monomer composition for recycling plastic synthesis that can secure high-purity aromatic diol compounds recovered through recycling by chemical decomposition of polycarbonate resin.
- the present invention is to provide a method for producing the monomer composition for synthesizing recycled plastic, recycled plastic, and molded articles using the monomer composition for synthesizing recycled plastic.
- an aromatic diol compound is included, the aromatic diol compound derivative impurity ratio according to the following formula 1 is 0.5% or less, the aromatic diol compound purity is 99.25% or more, and the polycarbonate-based resin A monomer composition for synthesizing recycled plastic, characterized in that it is recovered, is provided.
- Aromatic diol compound derivative impurity ratio (%) (aromatic diol compound derivative peak area on HPLC / total peak area on HPLC)
- Also included in the present specification are the steps of preparing a mixed solution by adding polycarbonate to an organic solvent; Adding a glycol-based compound and an ionic liquid catalyst to the mixed solution and stirring; and obtaining the aromatic diol compound formed in the stirring step.
- a method for producing a monomer composition for synthesizing recycled plastic is provided.
- the present specification also provides a recycled plastic comprising a reaction product of the monomer composition for synthesizing recycled plastic and a comonomer.
- Also provided herein is a molded article containing the recycled plastic.
- 'comprise' is to specify a specific characteristic, area, integer, step, operation, element and/or component, and to specify another specific property, area, integer, step, operation, element, component and/or group. It does not exclude the existence or addition of .
- first component may also be referred to as a second component, and similarly, the second component may be referred to as a first component.
- substituted or unsubstituted refers to deuterium; halogen group; Cyano group; nitro group; hydroxyl group; carbonyl group; ester group; imide group; amide group; Primary amino group; carboxyl group; sulfonic acid group; sulfonamide group; Phosphine oxide group; Alkoxy group; Aryloxy group; Alkylthioxy group; Arylthioxy group; Alkyl sulphoxy group; Aryl sulfoxy group; silyl group; boron group; Alkyl group; Cycloalkyl group; alkenyl group; Aryl group; Aralkyl group; Aralkenyl group; Alkylaryl group; Alkoxysilylalkyl group; 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, or substituted or un
- a substituent group in which two or more substituents are connected may be a biphenyl group. That is, the biphenyl group may be an aryl group, or it may be interpreted as a substituent in which two phenyl groups are connected.
- the alkyl group is a monovalent functional group derived from an alkane and may be straight-chain or branched, and the number of carbon atoms of the straight-chain alkyl group is not particularly limited, but is preferably 1 to 20. Additionally, the branched chain alkyl group has 3 to 20 carbon atoms. Specific examples of alkyl groups 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-nonyl, 2,2-dimethylheptyl, 1-ethyl- Propyl, 1,1-dimethyl-propyl, isohexyl, 2-methylpentyl, 4-methylhexyl, 5-methylhexyl, 2,6-dimethylheptan-4-yl, etc., but are not limited to these.
- the alkylene group is a divalent functional group derived from an alkane, and the description of the alkyl group described above can be applied except that it is a divalent functional group.
- it may be straight-chain or branched, such as methylene group, ethylene group, propylene group, isobutylene group, sec-butylene group, tert-butylene group, pentylene group, hexylene group, etc.
- the alkylene group may be substituted or unsubstituted, and when substituted, examples of the substituent are as described above.
- a fused ring refers to a cyclic structure in which adjacent rings share only two atoms each in a polycyclic system composed of two or more carbon rings or heterocycles.
- one or more means, for example, “1, 2, 3, 4 or 5, especially 1, 2, 3 or 4, more especially 1, 2 or 3, even more especially 1 or 2”. it means.
- the invention contains an aromatic diol compound, the impurity ratio of the aromatic diol compound derivative according to the following formula 1 is 0.5% or less, the purity of the aromatic diol compound is 99.25% or more, and is recovered from the polycarbonate-based resin.
- a monomer composition for synthesizing recycled plastics can be provided.
- Aromatic diol compound derivative impurity ratio (%) (aromatic diol compound derivative peak area on HPLC / total peak area on HPLC)
- the monomer composition for recycling plastic synthesis of the above embodiment has a high purity comparable to that of a newly synthesized aromatic diol compound and a significant reduction in aromatic diol compound derivative impurities even though it is recovered through recycling through chemical decomposition of polycarbonate resin. As it satisfies the requirements, it was confirmed through experiments that excellent physical properties can be achieved when synthesizing polycarbonate-based resin using this, and the invention was completed.
- the present invention can have the technical advantage of being able to obtain a composition containing an aromatic diol compound with high purity by recycling polycarbonate-based resin by chemical decomposition.
- the monomer composition for recycling plastic synthesis of the above embodiment is characterized in that it is recovered from polycarbonate-based resin. That is, as a result of recovery from polycarbonate-based resin to obtain the monomer composition for recycled plastic synthesis of the above embodiment, a monomer composition for recycled plastic synthesis containing an aromatic diol compound is obtained.
- the polycarbonate-based resin refers to all homopolymers or copolymers containing polycarbonate repeating units, and refers generically to reaction products obtained through polymerization or copolymerization of monomers including an aromatic diol compound and a carbonate precursor.
- a homopolymer can be synthesized if it contains one type of carbonate repeating unit obtained using only one type of aromatic diol compound and one type of carbonate precursor.
- the monomer one type of aromatic diol compound and two or more types of carbonate precursor may be used, two or more types of aromatic diol compound and one type of carbonate precursor may be used, or one type of other diol in addition to one type of aromatic diol compound and one type of carbonate precursor may be used.
- a copolymer can be synthesized when two or more types of carbonate are contained.
- the homopolymer or copolymer may include low molecular weight compounds, oligomers, and polymers depending on the molecular weight range.
- the monomer composition for synthesizing recycled plastic of one embodiment may include an aromatic diol compound.
- the aromatic diol compound include bis (4-hydroxyphenyl) methane, bis (4-hydroxyphenyl) ether, bis (4-hydroxyphenyl) sulfone, bis (4-hydroxyphenyl) sulfoxide, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) ketone, 1,1-bis (4-hydroxyphenyl) ethane, 2,2-bis (4-hydroxyphenyl) propane (bisphenol A) , 2,2-bis (4-hydroxyphenyl) butane, 1,1-bis (4-hydroxyphenyl) cyclohexane (bisphenol Z), 2,2-bis (4-hydroxy-3,5-di Bromophenyl) propane, 2,2-bis (4-hydroxy-3,5-dichlorophenyl) propane, 2,2-bis (4-hydroxy-3-bromophenyl) propane, 2,2-bis (4-hydroxy-3-chlorophenyl
- the aromatic diol compound is characterized in that it is recovered from the polycarbonate-based resin used to recover the monomer composition for synthesizing recycled plastic. That is, as a result of recovery from polycarbonate-based resin to obtain the monomer composition for recycling plastic synthesis of the above embodiment, this means that an aromatic diol compound is also obtained. Therefore, the case where a new aromatic diol compound is added externally, separately from recovery from the polycarbonate-based resin, to produce the monomer composition for recycled plastic synthesis of the above embodiment is not included in the scope of the aromatic diol compound of the present invention.
- recovered from the polycarbonate-based resin means obtained through a depolymerization reaction of the polycarbonate-based resin.
- the depolymerization reaction can be performed under acidic, neutral, or basic conditions.
- the depolymerization reaction can be performed under basic (alkaline) conditions.
- the depolymerization reaction is preferably carried out in the presence of a glycol-based compound, as described later.
- the monomer composition for synthesizing recycled plastic may further include impurities other than aromatic diol compounds.
- the impurities refer to aromatic diol compound derivative compounds excluding aromatic diol compounds, which are the main recovery targets of the present invention.
- the derivative of the aromatic diol compound may include one or more compounds selected from the group consisting of monohydroxyethyl-bisphenol A and bishydroxyethyl-bisphenol A.
- the derivative of the aromatic diol compound may include one type of monohydroxyethyl-bisphenol A, one type of bishydroxyethyl-bisphenol A, or a mixture of two types thereof.
- an organic solvent and an ionic liquid catalyst are introduced to proceed with chemical decomposition of polycarbonate by a glycol-based compound under mild reaction conditions, thereby preventing the generation of impurities derived from aromatic diol compounds. can be significantly reduced.
- the monomer composition for synthesizing recycled plastic may have an upper limit numerical range of the aromatic diol compound derivative impurity ratio according to Formula 1 of 0.5% or less, or 0.4% or less, or 0.3% or less, or 0.2% or less, or 0.13% or less. and the lower limit value range may be 0.01% or more, or 0.05% or more, or 0.08% or more, or 0.09% or more, or 0.1% or more, or 0.11% or more, or 0.12% or more.
- the lower to upper numerical ranges can also be satisfied.
- the impurity ratio of the aromatic diol compound derivative according to Equation 1 may be 0.01% to 0.5%.
- % the unit of impurity ratio of the aromatic diol compound derivative, is the peak area ratio on HPLC and means area %.
- the peak area of the aromatic diol compound derivative on HPLC may be the sum of the peak areas of one or more aromatic diol compound derivatives.
- the aromatic diol compound derivative is a mixture of two types of monohydroxyethyl-bisphenol A and bishydroxyethyl-bisphenol A, monohydroxyethyl-bisphenol A and bishydroxyethyl-bisphenol A, respectively It means the sum of the peak areas.
- the monohydroxyethyl-bisphenol A [MHE-BPA] may exhibit a peak with an HPLC retention time of 2.84 minutes
- bishydroxyethyl-bisphenol A [BHE-BPA] may exhibit a peak with an HPLC retention time of 2.61 minutes. .
- the example of the method for measuring the weight ratio of the derivative impurity of the aromatic diol compound in the monomer composition for recycling plastic synthesis of the above embodiment is not greatly limited, and for example, high performance liquid chromatography (HPLC) analysis may be used. You can.
- HPLC high performance liquid chromatography
- the specific methods, conditions, equipment, etc. of the HPLC can be applied to various previously known contents without limitation.
- the recycled bisphenol A monomer composition was dissolved in Acetonitrile (ACN) solvent at 1w% under normal pressure and 20 ⁇ 30 °C conditions, and then subjected to Waters HPLC using UG 120 (4.6mm I.DX 50mm). It can be measured through the system (e2695 separation module, 2998 PDA detector).
- the ratio of impurities of aromatic diol compound derivatives other than the aromatic diol compound, which is the main recovery target material is extremely reduced, making it possible to realize excellent physical properties when synthesizing polycarbonate-based resin. do.
- the monomer composition for recycling plastic synthesis according to the above embodiment may have a color coordinate b* value of 0.01 to 2, 0.5 to 1.2, or 0.58 to 1.11. That is, the monomer composition for recycling plastic synthesis of the embodiment has a lower limit numerical range of the color coordinate b* value of 0.01 or more, or 0.5 or more, or 0.58 or more, or 0.6 or more, or 0.7 or more, or 0.8 or more, or 0.9 or more, or It may be 1.0 or more, or 1.1 or more, and the upper limit numerical range may be 2 or less, or 1.2 or less, or 1.11 or less. By combining the upper and lower numerical ranges, the lower to upper numerical ranges can also be satisfied.
- the monomer composition for synthesizing recycled plastic according to the above embodiment may have a color coordinate L* value of 94 to 99, 95 to 98, or 95.77 to 97.49. That is, the monomer composition for recycling plastic synthesis of the embodiment has a lower limit numerical range of the color coordinate L* value of 94 or more, or 95 or more, or 95.77 or more, or 96 or more, or 96.3 or more, or 96.6 or more, or 96.9 or more, or It may be 97.2 or higher, or 97.4 or higher, and the upper limit numerical range may be 99 or lower, or 98 or lower, or 97.49 or lower. By combining the upper and lower numerical ranges, the lower to upper numerical ranges can also be satisfied.
- the monomer composition for synthesizing recycled plastic according to the above embodiment may have a color coordinate a* of 0.01 to 1.5, 0.1 to 1, or 0.10 to 0.23. That is, the monomer composition for recycling plastic synthesis of the embodiment has a lower limit numerical range of the color coordinate a* value of 0.01 or more, or 0.1 or more, or 0.12 or more, or 0.14 or more, or 0.16 or more, or 0.18 or more, or 0.2 or more, or It may be 0.22 or more, and the upper limit numerical range may be 1.5 or less, or 1 or less, or 0.23 or less. By combining the upper and lower numerical ranges, the lower to upper numerical ranges can also be satisfied.
- color coordinates refer to coordinates in the CIE Lab color space, which are color values defined by CIE (Commission International de l'Eclairage), and any position in the CIE color space is L*, It can be expressed as three coordinate values: a*, b*.
- the a* value indicates whether the color with the corresponding color coordinate is biased toward pure red or pure green
- the b* value indicates whether the color with the corresponding color coordinate is biased toward pure yellow or pure green. It indicates which direction the color is biased towards pure blue.
- the a* value ranges from -a to +a.
- the maximum value of a* (a* max) represents pure red
- the minimum value of a* (a* min) represents pure green
- the b* value ranges from -b to +b.
- the maximum value of b* (b* max) represents pure yellow
- the minimum value of b* (b* min) represents pure blue.
- a negative b* value means a color biased toward pure blue
- a positive value means a color biased toward pure yellow.
- the color coordinate b* value of the monomer composition for synthesizing recycled plastic of one embodiment is excessively increased beyond 2, the color of the monomer composition for synthesizing recycled plastic of one embodiment is excessively biased toward yellow, resulting in poor color characteristics.
- the color coordinate b* value of the monomer composition for synthesizing recycled plastic of one embodiment is excessively reduced to less than 0.01, the color of the monomer composition for synthesizing recycled plastic of one embodiment is excessively biased toward blue, resulting in poor color characteristics.
- the color of the monomer composition for synthesizing recycled plastic of one embodiment is excessively increased to more than 1.5, the color of the monomer composition for synthesizing recycled plastic of one embodiment is excessively biased toward red, resulting in poor color characteristics.
- the color coordinate a* value of the monomer composition for synthesizing recycled plastic of one embodiment is excessively reduced to less than 0.01, the color of the monomer composition for synthesizing recycled plastic of one embodiment is excessively biased toward green, resulting in poor color characteristics.
- the example of the method for measuring the color coordinates L*, a*, and b* values of the monomer composition for recycling plastic synthesis of the above embodiment is not greatly limited, and various color characteristic measurement methods in the plastics field can be applied without limitation.
- the monomer composition for recycling plastic synthesis of the above embodiment has an aromatic diol compound purity in the lower limit range of 99.25% or more, or 99.3% or more, or 99.4% or more, or 99.5% or more, or 99.6% or more, or 99.7% or more. , or it may be 99.8% or more, and the upper limit numerical range may be 100% or less, or 99.9% or less.
- the lower to upper numerical ranges can also be satisfied.
- the purity of the aromatic diol compound may be 99.25% to 100%.
- the example of the method for measuring the purity of the aromatic diol compound of the monomer composition for recycling plastic synthesis of the above embodiment is not greatly limited, and for example, 1 H NMR, ICP-MS analysis, HPLC analysis, UPLC analysis, etc. can be used without limitation. You can. The specific methods, conditions, and equipment of the above NMR, ICP-MS, HPLC, and UPLC can be applied to various previously known contents without limitation.
- the purity of the aromatic diol compound, which is the main recovery target material, in the monomer composition for recycled plastic synthesis of the above embodiment is greatly increased to 99.25% or more, and other impurities are minimized, thereby realizing excellent physical properties when synthesizing polycarbonate-based resin. This is possible.
- the monomer composition for synthesizing recycled plastic of one embodiment can be used as a raw material for manufacturing various recycled plastics (eg, polycarbonate (PC)), which will be described later.
- PC polycarbonate
- the monomer composition for recycling plastic synthesis of the above embodiment may further include a small amount of other additives and solvents, and the type of specific additives or solvents is not greatly limited, and may include an aromatic diol compound recovery process by depolymerization of polycarbonate-based resin.
- a variety of widely used materials can be applied without limitation.
- the monomer composition for synthesizing recycled plastic of the above embodiment may be obtained by the method for producing a monomer composition for synthesizing recycled plastic, which will be described later. That is, the monomer composition for recycling plastic synthesis of the above embodiment is obtained by going through various filtration, purification, washing, and drying processes to secure only the aromatic diol compound, which is the main recovery target material, in high purity after the depolymerization reaction of the polycarbonate-based resin. It applies.
- a method for producing the monomer composition for synthesizing recycled plastic of claim 1 may be provided.
- the present invention has the advantage of being able to stably obtain bisphenol A, a highly pure monomer, by decomposing polycarbonate into a glycol-based compound under mild conditions.
- the polycarbonate includes all homopolymers or copolymers containing carbonate repeating units, and refers to a general term for reaction products obtained through polymerization or copolymerization of monomers including an aromatic diol compound and a carbonate precursor.
- a homopolymer can be synthesized if it contains one type of carbonate repeating unit obtained using only one type of aromatic diol compound and one type of carbonate precursor.
- the monomer one type of aromatic diol compound and two or more types of carbonate precursor may be used, two or more types of aromatic diol compound and one type of carbonate precursor may be used, or one type of other diol in addition to one type of aromatic diol compound and one type of carbonate precursor may be used.
- a copolymer can be synthesized when two or more types of carbonate are contained.
- the homopolymer or copolymer may include low molecular weight compounds, oligomers, and polymers depending on the molecular weight range.
- the polycarbonate can be applied in various forms and types, such as new polycarbonate produced through synthesis, recycled polycarbonate produced through a recycling process, or polycarbonate waste.
- the glycol-based compound may include both a glycol compound or a derivative thereof, and specifically, the glycol-based compound may include alkylene glycol.
- the alkylene glycol are not greatly limited, and various known alkylene glycols can be used without limitation. Examples include ethylene glycol or propylene glycol.
- the organic solvent may include one or more solvents selected from the group consisting of tetrahydrofuran, toluene, methylene chloride, chloroform, dimethyl carbonate, ethylmethyl carbonate, diethyl carbonate, and dipropyl carbonate. That is, the organic solvent may include tetrahydrofuran, toluene, methylene chloride, chloroform, dimethyl carbonate, ethylmethyl carbonate, diethyl carbonate, dipropyl carbonate, or a mixture of two or more thereof.
- the weight ratio of the glycol-based compound, organic solvent, and polycarbonate is not greatly limited, but for example, the weight ratio between the glycol-based compound and polycarbonate is 10:1 to 1:10, or 1:1 to 1:10, or 1:1 to 1:5, or 1:1 to 1:2, or 1:1.2 to 1:2.
- the weight ratio between the organic solvent and polycarbonate is 10:1 to 1:10, or 10:1 to 1:1, or 10:1 to 2:1, or 2:1 to 5:1, or 2:1. to 3:1, or 2.5:1 to 3:1.
- the weight ratio between organic solvent and glycol-based compound is 10:1 to 1:10, or 1:1 to 10:1, or 2:1 to 10:1, or 2:1 to 5:1, or 3:1. It may be 4:1.
- the depolymerization reaction of the polymer can proceed at the required level by mixing the glycol-based compound and the organic solvent within the above range.
- the ionic liquid catalyst is 0.1 to 10 parts by weight, or 0.1 to 5 parts by weight, or 0.1 to 4 parts by weight, or 0.1 to 3 parts by weight, based on 100 parts by weight of polycarbonate, or It may be added in an amount of 0.1 to 2 parts by weight, or 0.1 to 1 part by weight. Specifically, there is an advantage in that an economical catalytic reaction can be performed by including an ionic liquid catalyst in the above content range.
- the ionic liquid catalyst may exist in the form of a salt containing an organic cation and an organic anion, and may specifically include an amidine-based salt compound.
- the amidine-based salt compound may include an amidine-based cation and an imidazole-based anion.
- the amidine-based cation may include all amidine cations or their derivative cations.
- the imidazole-based cation may include both imidazole anion and its derivative anion.
- the amidine-based salt compound may include an amidine-based cation having a bonded ring.
- the bonded ring may include a bonded ring between a 7-membered ring and a 6-membered ring.
- the 7-membered ring refers to a case where there are 7 elements making up the ring
- the 6-membered ring refers to a case where there are 6 elements making up the ring.
- the 7-membered ring may contain a C-C single bond of amidine. Additionally, a C-N single bond of amidine may be included in the overlapping portion of the 7-membered ring and the 6-membered ring.
- ionic liquid catalyst examples include salt compounds represented by the following formula (A).
- R 1 , R 2 , and R 3 are the same as or different from each other, and may each independently be hydrogen or alkyl.
- Phosphorus compound e, etc. are included, but are not limited thereto.
- the step of adding and stirring the glycol-based compound and the ionic liquid catalyst to the mixed solution is performed at 20 °C to 100 °C, or 50 °C to 100 °C, or 60 °C to 100 °C, or 70 °C to 100 °C, or 70 °C It may be stirred at °C to 90 °C for 1 hour to 24 hours, or 1 hour to 12 hours, or 1 hour to 8 hours.
- the above conditions are mild process conditions compared to the existing pressurization/high temperature process, and by performing stirring under the above conditions, the process can be performed in a mild process compared to the pressurization/high temperature process, especially at temperatures ranging from 70°C to 70°C.
- temperatures ranging from 70°C to 70°C There is an advantage in obtaining the most efficient results in terms of reproducibility and acceptability when stirred at 90°C for 1 to 12 hours.
- the step of obtaining the aromatic diol compound formed in the stirring step includes adding the product obtained in the stirring step to a crystallization solvent to form an aromatic diol compound crystal; and filtering the aromatic diol compound crystals.
- the specific equipment and conditions for adding the crystallization solvent and forming aromatic diol compound crystals are not limited, and various recrystallization processes that have been widely used in the field of technology for recovering aromatic diol compounds (bisphenol A) can be applied without limitation.
- the crystallization solvent water can be used.
- a recycled plastic containing a reaction product of the monomer composition for synthesizing recycled plastic of the above embodiment and a comonomer may be provided.
- the content of the monomer composition for synthesizing recycled plastic of the one embodiment includes all of the content described above in the one embodiment and other embodiments.
- Examples of the above recycled plastics are not greatly limited, and various plastics synthesized using aromatic diol compounds such as bisphenol A and carbonate precursors such as dimethyl carbonate, diethyl carbonate, or ethylmethyl carbonate as monomers can be applied without limitation, A more specific example may include polycarbonate-based resin.
- the polycarbonate-based resin refers to all homopolymers or copolymers containing polycarbonate repeating units, and refers generically to reaction products obtained through polymerization or copolymerization of monomers including an aromatic diol compound and a carbonate precursor.
- a homopolymer can be synthesized if it contains one type of carbonate repeating unit obtained using only one type of aromatic diol compound and one type of carbonate precursor.
- the monomer one type of aromatic diol compound and two or more types of carbonate precursor may be used, two or more types of aromatic diol compound and one type of carbonate precursor may be used, or one type of other diol in addition to one type of aromatic diol compound and one type of carbonate precursor may be used.
- a copolymer can be synthesized when two or more types of carbonate are contained.
- the homopolymer or copolymer may include low molecular weight compounds, oligomers, and polymers depending on the molecular weight range.
- a carbonate precursor may be used as the comonomer.
- the carbonate precursor include phosgene, triphosgene, diphosgene, bromophosgene, dimethyl carbonate, diethyl carbonate, dibutyl carbonate, dicyclohexyl carbonate, diphenyl carbonate, ditoryl carbonate, bis(chlorophenyl) carbonate, m -Cresyl carbonate, dinaphthyl carbonate, bis(diphenyl) carbonate, or bishaloformate may be mentioned.
- Examples of the reaction process of the monomer composition and comonomer for synthesizing recycled plastics for synthesizing the polycarbonate-based resin are not greatly limited, and various previously known polycarbonate production methods can be applied without limitation.
- a polycarbonate production method including the step of polymerizing a monomer composition for synthesizing recycled plastic and a composition containing a comonomer can be used.
- the polymerization can be performed by interfacial polymerization. During interfacial polymerization, the polymerization reaction is possible at normal pressure and low temperature, and molecular weight control is easy.
- the polymerization temperature may be 0°C to 40°C, and the reaction time may be 10 minutes to 5 hours. Additionally, the pH during the reaction can be maintained at 9 or higher or 11 or higher.
- the solvent that can be used in the polymerization is not particularly limited as long as it is a solvent used in the polymerization of polycarbonate in the art.
- halogenated hydrocarbons such as methylene chloride and chlorobenzene can be used.
- the polymerization can be performed in the presence of an acid binder, and the acid binder can be an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide, or an amine compound such as pyridine.
- the acid binder can be an alkali metal hydroxide such as sodium hydroxide or potassium hydroxide, or an amine compound such as pyridine.
- the polymerization may be performed in the presence of a molecular weight regulator.
- the molecular weight regulator may be an alkylphenol having 1 to 20 carbon atoms, and specific examples thereof include p-tert-butylphenol, p-cumylphenol, decylphenol, dodecylphenol, tetradecylphenol, hexadecylphenol, octadecylphenol, Examples include eicosylphenol, docosylphenol, or triacontylphenol.
- the molecular weight regulator may be added before the start of polymerization, during the start of polymerization, or after the start of polymerization.
- the molecular weight regulator can be used in an amount of 0.01 to 10 parts by weight, or 0.1 to 6 parts by weight, based on 100 parts by weight of the aromatic diol compound, and the desired molecular weight can be obtained within this range.
- reaction such as tertiary amine compounds such as triethylamine, tetra-n-butylammonium bromide, tetra-n-butylphosphonium bromide, quaternary ammonium compounds, quaternary phosphonium compounds, etc.
- tertiary amine compounds such as triethylamine, tetra-n-butylammonium bromide, tetra-n-butylphosphonium bromide, quaternary ammonium compounds, quaternary phosphonium compounds, etc.
- Additional accelerators may be used.
- a molded article containing the recycled plastic of the other embodiment can be provided.
- the content regarding the recycled plastic includes all the content described in detail in the other embodiments.
- the molded product may be obtained by applying various known plastic molding methods to the recycled plastic without limitation, and examples of the molding methods include injection molding, foam injection molding, blow molding, or extrusion molding.
- Examples of the above molded products are not greatly limited, and can be applied to various molded products using plastic without limitation.
- Examples of the molded products include automobile parts, electrical and electronic products, communication products, household goods, building materials, optical parts, and exterior materials.
- the molded article may optionally contain one or more additives selected from the group consisting of antioxidants, plasticizers, antistatic agents, nucleating agents, flame retardants, lubricants, impact modifiers, fluorescent whitening agents, ultraviolet absorbers, pigments, and dyes. may additionally be included.
- the recycled plastic and additives of the other embodiments are mixed well using a mixer, then extruded with an extruder to produce pellets, dried, and then injected with an injection molding machine. It can be included.
- a monomer composition for synthesizing recycled plastic containing a high-purity aromatic diol compound recovered through recycling by chemical decomposition of polycarbonate resin, a method for manufacturing the same, and recycled plastic and molded products using the same can be provided. there is.
- the reaction product was added to water, and the crystallized bisphenol A was filtered under reduced pressure to obtain bisphenol A to prepare a recycled bisphenol A monomer composition.
- the reaction product was added to water, and the crystallized bisphenol A was filtered under reduced pressure to obtain bisphenol A to prepare a recycled bisphenol A monomer composition.
- waste polycarbonate was added and stirred at 40°C for 5 hours.
- the reaction product was added to water, and the crystallized bisphenol A was filtered under reduced pressure to obtain bisphenol A to prepare a recycled bisphenol A monomer composition.
- waste polycarbonate was added and stirred at 50°C for 24 hours.
- the reaction product was added to water, and the crystallized bisphenol A was filtered under reduced pressure to obtain bisphenol A to prepare a recycled bisphenol A monomer composition.
- the recycled bisphenol A monomer composition was dissolved in Acetonitrile (ACN) solvent at 1w% under normal pressure and 20 to 30°C conditions, and then analyzed using a Waters HPLC system (e2695 separation module, 2998 PDA) using UG 120 (4.6mm I.DX 50mm). The purity of bisphenol A (BPA) was analyzed using a detector.
- ACN Acetonitrile
- BPA bisphenol A
- the recycled bisphenol A monomer composition was analyzed in reflection mode using HunterLab UltraScan PRO Spectrophotometer equipment.
- BPA derivative impurity ratio (%) (Bisphenol A derivative peak area on HPLC / total peak area on HPLC)
- the peak area of the bisphenol A derivative on HPLC is specifically as follows, and in Equation 1, the peak area of the bisphenol A derivative on HPLC is the sum of the peak areas of MHE-BPA and BHE-BPA.
- the recycled bisphenol A monomer compositions obtained in Examples 1 to 7 showed high purity of 99.3% to 99.8%.
- the recycled bisphenol A monomer compositions obtained in Examples 1 to 7 showed color coordinates L* of 95.77 to 97.49, a* of 0.10 to 0.23, and b* of 0.58 to 1.11, showing excellent optical properties.
- the recycled bisphenol A monomer composition obtained in Examples 1 to 7 had a low BPA derivative impurity ratio of 0.08% to 0.13%.
- the recycled bisphenol A monomer composition obtained in Comparative Examples 2 and 3 had color coordinates L* of 91.73 to 92.36, a* of 1.98 to 2.12, and b* of 2.98 to 3.16, showing poor optical properties compared to the Examples.
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Abstract
Description
구분 | 촉매 | 촉매투입량(g) | 반응온도(℃) |
실시예1 | 화합물a | 0.3 | 70 |
실시예2 | 화합물b | 0.3 | 70 |
실시예3 | 화합물c | 0.3 | 70 |
실시예4 | 화합물d | 0.3 | 70 |
실시예5 | 화합물e | 0.3 | 70 |
실시예6 | 화합물a | 0.3 | 80 |
실시예7 | 화합물a | 0.3 | 90 |
구분 | BPA 순도(%) | L* | a* | b* | BPA 유도체 불순물 비율(%) |
실시예1 | 99.8 | 96.71 | 0.10 | 0.58 | 0.08 |
실시예2 | 99.5 | 96.20 | 0.13 | 0.97 | 0.09 |
실시예3 | 99.4 | 95.77 | 0.20 | 0.88 | 0.12 |
실시예4 | 99.3 | 97.49 | 0.23 | 1.01 | 0.10 |
실시예5 | 99.4 | 97.28 | 0.17 | 0.95 | 0.10 |
실시예6 | 99.5 | 97.09 | 0.23 | 0.76 | 0.12 |
실시예7 | 99.7 | 96.64 | 0.19 | 1.11 | 0.13 |
비교예1 | 77.9 | - | - | - | 19.92 |
비교예2 | 99.2 | 91.73 | 2.12 | 3.16 | - |
비교예3 | 97.0 | 92.36 | 1.98 | 2.98 | - |
Claims (20)
- 방향족 디올 화합물을 포함하고,하기 식1에 의한 방향족 디올 화합물 유도체 불순물 비율이 0.5 % 이하이고,방향족 디올 화합물 순도가 99.25% 이상이며,폴리카보네이트계 수지에서 회수된 것을 특징으로 하는, 재활용 플라스틱 합성용 단량체 조성물:[식 1]방향족 디올 화합물 유도체 불순물 비율 (%) = (HPLC 상 방향족 디올 화합물 유도체 피크 면적 / HPLC 상 전체 피크 면적) X 100.
- 제1항에 있어서,상기 식1에서 HPLC 상 방향족 디올 화합물 유도체 피크 면적은, 1종 이상의 방향족 디올 화합물 유도체 각각의 피크 면적 합계인, 재활용 플라스틱 합성용 단량체 조성물.
- 제1항에 있어서,상기 방향족 디올 화합물의 유도체는 모노하이드록시에틸-비스페놀A, 및 비스하이드록시에틸-비스페놀A로 이루어진 군에서 선택된 1종 이상의 화합물을 포함하는, 재활용 플라스틱 합성용 단량체 조성물.
- 제1항에 있어서,상기 재활용 플라스틱 합성용 단량체 조성물은 색좌표 L*이 94 내지 99인, 재활용 플라스틱 합성용 단량체 조성물.
- 제1항에 있어서,상기 재활용 플라스틱 합성용 단량체 조성물은 색좌표 b*가 0.01 내지 2인, 재활용 플라스틱 합성용 단량체 조성물.
- 제1항에 있어서,상기 재활용 플라스틱 합성용 단량체 조성물은 색좌표 a*가 0.01 내지 1.5 인, 재활용 플라스틱 합성용 단량체 조성물.
- 제1항에 있어서,상기 방향족 디올 화합물은 상기 재활용 플라스틱 합성용 단량체 조성물 회수에 사용된 폴리카보네이트계 수지에서 회수된 것인, 재활용 플라스틱 합성용 단량체 조성물.
- 유기 용매에 폴리카보네이트를 첨가하여 혼합액을 제조하는 단계;상기 혼합액에 글리콜계 화합물과 이온성 액체 촉매를 첨가하고 교반하는 단계; 및상기 교반 단계에서 형성된 방향족 디올 화합물을 수득하는 단계;를 포함하는, 제1항의 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제8항에 있어서,상기 글리콜계 화합물은 알킬렌글리콜을 포함하는, 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제8항에 있어서,상기 유기 용매는 테트라하이드로퓨란, 톨루엔, 메틸렌 클로라이드, 클로로포름, 디메틸 카보네이트, 에틸메틸 카보네이트, 디에틸 카보네이트 및 디프로필카보네이트로 이루어진 군에서 선택된 1종 이상의 용매를 포함하는 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제8항에 있어서,상기 유기 용매 : 글리콜계 화합물 간 중량비가 10 : 1 내지 1 : 10인 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제8항에 있어서,상기 이온성 액체 촉매는 폴리카보네이트 100 중량부에 대하여, 0.1 중량부 내지 10 중량부로 첨가되는 것인 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제8항에 있어서,상기 이온성 액체 촉매는 아미딘계 염 화합물을 포함하는, 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제13항에 있어서,상기 아미딘계 염 화합물은 접합고리를 갖는 아미딘계 양이온을 포함하는, 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제14항에 있어서,상기 접합고리는 7원 고리와, 6원 고리간의 접합고리를 포함하는, 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제8항에 있어서,상기 혼합액에 글리콜계 화합물과 이온성 액체 촉매를 첨가하고 교반하는 단계는,20 ℃ 내지 100 ℃에서 1시간 내지 30시간 교반하는 것인 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제8항에 있어서,상기 교반 단계에서 형성된 방향족 디올 화합물을 수득하는 단계는,상기 교반 단계에서 얻어진 생성물을 결정화 용매에 투입하여 방향족 디올 화합물 결정을 형성시키는 단계; 및상기 방향족 디올 화합물 결정을 여과시키는 단계:를 포함하는, 재활용 플라스틱 합성용 단량체 조성물의 제조방법.
- 제1항의 재활용 플라스틱 합성용 단량체 조성물 및 공단량체의 반응생성물을 포함하는, 재활용 플라스틱.
- 제19항의 재활용 플라스틱을 포함하는, 성형품.
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WO2021171311A1 (en) * | 2020-02-25 | 2021-09-02 | Council Of Scientific And Industrial Research An Indian Registered Body Incorporated Under The Regn. Of Soc. Act (Act Xxi Of 1860) | Depolymerization of polymers with ester, ether and carbonate linkages using acidic ionic liquid (ail) catalyst |
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- 2023-04-12 WO PCT/KR2023/004929 patent/WO2023200244A1/ko active Application Filing
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WO2021171311A1 (en) * | 2020-02-25 | 2021-09-02 | Council Of Scientific And Industrial Research An Indian Registered Body Incorporated Under The Regn. Of Soc. Act (Act Xxi Of 1860) | Depolymerization of polymers with ester, ether and carbonate linkages using acidic ionic liquid (ail) catalyst |
Non-Patent Citations (4)
Title |
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DO TAEYANG; BARAL EK RAJ; KIM JEUNG GON: "Chemical recycling of poly(bisphenol A carbonate): 1,5,7-Triazabicyclo[4.4.0]-dec-5-ene catalyzed alcoholysis for highly efficient bisphenol A and organic carbonate recovery", POLYMER, ELSEVIER, AMSTERDAM, NL, vol. 143, 4 April 2018 (2018-04-04), AMSTERDAM, NL, pages 106 - 114, XP085385694, ISSN: 0032-3861, DOI: 10.1016/j.polymer.2018.04.015 * |
IANNONE FRANCESCO; CASIELLO MICHELE; MONOPOLI ANTONIO; COTUGNO PIETRO; SPORTELLI MARIA CHIARA; PICCA ROSARIA ANNA; CIOFFI NICOLA; : "Ionic liquids/ZnO nanoparticles as recyclable catalyst for polycarbonate depolymerization", JOURNAL OF MOLECULAR CATALYSIS A CHEMICAL, ELSEVIER, AMSTERDAM., NL, vol. 426, 1 January 1900 (1900-01-01), NL , pages 107 - 116, XP029825941, ISSN: 1381-1169, DOI: 10.1016/j.molcata.2016.11.006 * |
LIU MENGSHUAI, GUO JIAO, GU YONGQIANG, GAO JUN, LIU FUSHENG: "Versatile Imidazole-Anion-Derived Ionic Liquids with Unparalleled Activity for Alcoholysis of Polyester Wastes under Mild and Green Conditions", ACS SUSTAINABLE CHEMISTRY & ENGINEERING, AMERICAN CHEMICAL SOCIETY, US, vol. 6, no. 11, 5 November 2018 (2018-11-05), US , pages 15127 - 15134, XP093098187, ISSN: 2168-0485, DOI: 10.1021/acssuschemeng.8b03591 * |
QUARANTA EUGENIO, MINISCHETTI CLARA CASTIGLIONE, TARTARO GIUSEPPE: "Chemical Recycling of Poly(bisphenol A carbonate) by Glycolysis under 1,8-Diazabicyclo[5.4.0]undec-7-ene Catalysis", ACS OMEGA, ACS PUBLICATIONS, US, vol. 3, no. 7, 31 July 2018 (2018-07-31), US , pages 7261 - 7268, XP055844580, ISSN: 2470-1343, DOI: 10.1021/acsomega.8b01123 * |
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