TW593407B - Process for the recycling of polycarbonates - Google Patents
Process for the recycling of polycarbonates Download PDFInfo
- Publication number
- TW593407B TW593407B TW091119732A TW91119732A TW593407B TW 593407 B TW593407 B TW 593407B TW 091119732 A TW091119732 A TW 091119732A TW 91119732 A TW91119732 A TW 91119732A TW 593407 B TW593407 B TW 593407B
- Authority
- TW
- Taiwan
- Prior art keywords
- polycarbonate
- molecular weight
- item
- melt
- bisphenol
- Prior art date
Links
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 82
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000008569 process Effects 0.000 title abstract description 5
- 238000004064 recycling Methods 0.000 title description 7
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000155 melt Substances 0.000 claims abstract description 21
- 229930185605 Bisphenol Natural products 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 14
- 238000005809 transesterification reaction Methods 0.000 claims abstract description 11
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 125000003118 aryl group Chemical group 0.000 claims abstract description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 6
- 239000004431 polycarbonate resin Substances 0.000 claims abstract description 4
- 229920005668 polycarbonate resin Polymers 0.000 claims abstract description 4
- 230000002079 cooperative effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 125000001475 halogen functional group Chemical group 0.000 claims 1
- 238000009833 condensation Methods 0.000 description 21
- 230000005494 condensation Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- -1 carbonate diaryl ester Chemical class 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 5
- 239000001294 propane Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 4
- 125000003143 4-hydroxybenzyl group Chemical group [H]C([*])([H])C1=C([H])C([H])=C(O[H])C([H])=C1[H] 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 3
- 150000004703 alkoxides Chemical class 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- CGERYHYIVJQVLJ-UHFFFAOYSA-N 2-methylbutane Chemical compound CC[C](C)C CGERYHYIVJQVLJ-UHFFFAOYSA-N 0.000 description 2
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical class C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 2
- UMPGNGRIGSEMTC-UHFFFAOYSA-N 4-[1-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexyl]phenol Chemical compound C1C(C)CC(C)(C)CC1(C=1C=CC(O)=CC=1)C1=CC=C(O)C=C1 UMPGNGRIGSEMTC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000006085 branching agent Substances 0.000 description 2
- 125000005587 carbonate group Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000011437 continuous method Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- PFHTYDZPRYLZHX-UHFFFAOYSA-N 2-(2,5-dihydroxyphenyl)benzene-1,4-diol Chemical compound OC1=CC=C(O)C(C=2C(=CC=C(O)C=2)O)=C1 PFHTYDZPRYLZHX-UHFFFAOYSA-N 0.000 description 1
- CJWNFAKWHDOUKL-UHFFFAOYSA-N 2-(2-phenylpropan-2-yl)phenol Chemical compound C=1C=CC=C(O)C=1C(C)(C)C1=CC=CC=C1 CJWNFAKWHDOUKL-UHFFFAOYSA-N 0.000 description 1
- WJQOZHYUIDYNHM-UHFFFAOYSA-N 2-tert-Butylphenol Chemical compound CC(C)(C)C1=CC=CC=C1O WJQOZHYUIDYNHM-UHFFFAOYSA-N 0.000 description 1
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004970 Chain extender Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000004425 Makrolon Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000005922 Phosphane Substances 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 241000700159 Rattus Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 229910003074 TiCl4 Inorganic materials 0.000 description 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 125000000218 acetic acid group Chemical group C(C)(=O)* 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 210000002318 cardia Anatomy 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 235000019219 chocolate Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- RZKNJSIGVZOHKZ-UHFFFAOYSA-N diazanium carbonic acid carbonate Chemical compound [NH4+].[NH4+].OC(O)=O.OC(O)=O.[O-]C([O-])=O RZKNJSIGVZOHKZ-UHFFFAOYSA-N 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 239000013070 direct material Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- RMBPEFMHABBEKP-UHFFFAOYSA-N fluorene Chemical compound C1=CC=C2C3=C[CH]C=CC3=CC2=C1 RMBPEFMHABBEKP-UHFFFAOYSA-N 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 125000006289 hydroxybenzyl group Chemical group 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 150000002907 osmium Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- PYOZTOXFQNWBIS-UHFFFAOYSA-N phenol;sodium Chemical compound [Na].OC1=CC=CC=C1 PYOZTOXFQNWBIS-UHFFFAOYSA-N 0.000 description 1
- 229910000064 phosphane Inorganic materials 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- NESLWCLHZZISNB-UHFFFAOYSA-M sodium phenolate Chemical compound [Na+].[O-]C1=CC=CC=C1 NESLWCLHZZISNB-UHFFFAOYSA-M 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C08G64/42—Chemical after-treatment
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyesters Or Polycarbonates (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10142735A DE10142735A1 (de) | 2001-08-31 | 2001-08-31 | Verfahren zur Verwendung von Polycarbonaten |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW593407B true TW593407B (en) | 2004-06-21 |
Family
ID=7697284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW091119732A TW593407B (en) | 2001-08-31 | 2002-08-30 | Process for the recycling of polycarbonates |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6887968B2 (enExample) |
| EP (1) | EP1425337B1 (enExample) |
| JP (1) | JP2005501949A (enExample) |
| KR (1) | KR20040032979A (enExample) |
| CN (1) | CN1279094C (enExample) |
| AT (1) | ATE399813T1 (enExample) |
| DE (2) | DE10142735A1 (enExample) |
| ES (1) | ES2306773T3 (enExample) |
| TW (1) | TW593407B (enExample) |
| WO (1) | WO2003020805A1 (enExample) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3967674B2 (ja) * | 2002-12-11 | 2007-08-29 | 日本ジーイープラスチックス株式会社 | ポリカーボネートの樹脂のリサイクル法 |
| DE602006011448D1 (de) † | 2005-03-28 | 2010-02-11 | Mitsubishi Eng Plastics Corp | Polycarbonatharzzusammensetzung und formprodukt zum schutz gegen heisse strahlung |
| US7645850B2 (en) * | 2005-08-11 | 2010-01-12 | Frx Polymers, Inc. | Poly(block-phosphonato-ester) and poly(block-phosphonato-carbonate) and methods of making same |
| DE102006046330A1 (de) * | 2006-09-28 | 2008-04-03 | Bayer Materialscience Ag | Polycarbonate und Copolycarbonate mit verbesserter Metallhaftung |
| DE102007007462A1 (de) | 2007-02-15 | 2008-08-21 | Bayer Materialscience Ag | Verwendung von Alumosilikaten zur Entfernung bzw. Reduzierung von fluoreszierenden Partikeln in Polycarbonat |
| US8680227B1 (en) | 2012-12-21 | 2014-03-25 | Saudi Basic Industries Corporation | Manufacture of dihydroxy aromatic compounds by alcoholysis of polycarbonate-containing compositions |
| US8846858B2 (en) | 2012-12-21 | 2014-09-30 | Saudi Basic Industries Corporation | Method for alcoholysis of polycarbonate compositions containing flame retardant or acrylonitrile-butadiene-styrene |
| US8680226B1 (en) | 2012-12-21 | 2014-03-25 | Saudi Basic Industries Corporation | Method for alcoholysis of acrylonitrile-butadiene-styrene-containing polycarbonate compositions |
| EP2746249B1 (en) | 2012-12-21 | 2017-06-07 | Saudi Basic Industries Corporation | Manufacture of dihydroxy aromatic compounds by alcoholysis of flame retardant-containing polycarbonate compositions |
| CN108129818B (zh) * | 2017-11-15 | 2020-04-07 | 中国电器科学研究院股份有限公司 | 一种利用大分子扩链剂始源性修复改性的再生pc/abs合金材料及其制备方法 |
| CN112706503B (zh) * | 2019-10-25 | 2023-05-09 | 深圳市大亚洲电子材料有限公司 | 一种用于pet复合膜分离回收的组合物 |
| CN111440304A (zh) * | 2020-03-27 | 2020-07-24 | 聊城鲁西聚碳酸酯有限公司 | 光气界面缩聚法pc低聚物废液回收利用的系统及方法 |
| EP4124632A1 (de) | 2021-07-27 | 2023-02-01 | Covestro Deutschland AG | Verfahren zur herstellung eines polysiloxan-polycarbonat-blockcopolymers |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4240314A1 (de) | 1992-12-01 | 1994-06-09 | Bayer Ag | Verfahren zur Herstellung von thermoplastischen Polycarbonaten |
| DE4421701A1 (de) | 1994-06-21 | 1996-01-04 | Bayer Ag | Verfahren zum chemischen Recycling von Polycarbonaten |
| US5864006A (en) * | 1997-04-08 | 1999-01-26 | The Dow Chemical Company | Method of making polycarbonate prepolymer and method of making high molecular weight polycarbonate |
| ES2172297T3 (es) | 1998-01-26 | 2002-09-16 | Ciba Sc Holding Ag | Aumento de peso molecular y estabilizacion de policondensados con diepoxidos de aminas impedidas estericamente. |
| DE19933132A1 (de) * | 1999-07-19 | 2001-01-25 | Bayer Ag | Verfahren zur Herstellung von modifizierten Polycarbonaten |
| JP3898542B2 (ja) * | 2002-03-22 | 2007-03-28 | 日本ジーイープラスチックス株式会社 | 重縮合系樹脂のリサイクル法 |
| US20030232957A1 (en) * | 2002-06-12 | 2003-12-18 | General Electric Company | Method for making an aromatic polycarbonate |
-
2001
- 2001-08-31 DE DE10142735A patent/DE10142735A1/de not_active Withdrawn
-
2002
- 2002-08-19 ES ES02751175T patent/ES2306773T3/es not_active Expired - Lifetime
- 2002-08-19 JP JP2003525070A patent/JP2005501949A/ja active Pending
- 2002-08-19 KR KR10-2004-7002926A patent/KR20040032979A/ko not_active Abandoned
- 2002-08-19 EP EP02751175A patent/EP1425337B1/de not_active Expired - Lifetime
- 2002-08-19 WO PCT/EP2002/009237 patent/WO2003020805A1/de not_active Ceased
- 2002-08-19 AT AT02751175T patent/ATE399813T1/de not_active IP Right Cessation
- 2002-08-19 DE DE50212450T patent/DE50212450D1/de not_active Expired - Fee Related
- 2002-08-19 CN CNB028171195A patent/CN1279094C/zh not_active Expired - Fee Related
- 2002-08-28 US US10/229,787 patent/US6887968B2/en not_active Expired - Fee Related
- 2002-08-30 TW TW091119732A patent/TW593407B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US6887968B2 (en) | 2005-05-03 |
| KR20040032979A (ko) | 2004-04-17 |
| CN1279094C (zh) | 2006-10-11 |
| DE50212450D1 (de) | 2008-08-14 |
| JP2005501949A (ja) | 2005-01-20 |
| ATE399813T1 (de) | 2008-07-15 |
| DE10142735A1 (de) | 2003-03-20 |
| EP1425337B1 (de) | 2008-07-02 |
| CN1549841A (zh) | 2004-11-24 |
| US20030065130A1 (en) | 2003-04-03 |
| WO2003020805A1 (de) | 2003-03-13 |
| ES2306773T3 (es) | 2008-11-16 |
| EP1425337A1 (de) | 2004-06-09 |
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