JPS60248646A - ポリエステル屑の解重合方法 - Google Patents
ポリエステル屑の解重合方法Info
- Publication number
- JPS60248646A JPS60248646A JP59104482A JP10448284A JPS60248646A JP S60248646 A JPS60248646 A JP S60248646A JP 59104482 A JP59104482 A JP 59104482A JP 10448284 A JP10448284 A JP 10448284A JP S60248646 A JPS60248646 A JP S60248646A
- Authority
- JP
- Japan
- Prior art keywords
- depolymerization
- polyester
- glycol
- bht
- reaction system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000728 polyester Polymers 0.000 title claims abstract description 88
- 239000002699 waste material Substances 0.000 title claims abstract description 44
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 93
- 239000002253 acid Substances 0.000 claims abstract description 22
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000012691 depolymerization reaction Methods 0.000 claims abstract description 16
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 10
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 34
- 229920000642 polymer Polymers 0.000 claims description 19
- 239000000376 reactant Substances 0.000 claims description 6
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 31
- QPKOBORKPHRBPS-UHFFFAOYSA-N bis(2-hydroxyethyl) terephthalate Chemical compound OCCOC(=O)C1=CC=C(C(=O)OCCO)C=C1 QPKOBORKPHRBPS-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 16
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 16
- -1 polyethylene terephthalate Polymers 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 229920000139 polyethylene terephthalate Polymers 0.000 description 7
- 239000005020 polyethylene terephthalate Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 5
- FJKROLUGYXJWQN-UHFFFAOYSA-N 4-hydroxybenzoic acid Chemical compound OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- YPFDHNVEDLHUCE-UHFFFAOYSA-N propane-1,3-diol Chemical compound OCCCO YPFDHNVEDLHUCE-UHFFFAOYSA-N 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 238000007086 side reaction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 2
- 229940090248 4-hydroxybenzoic acid Drugs 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 125000005907 alkyl ester group Chemical group 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 230000000379 polymerizing effect Effects 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- FCJSHPDYVMKCHI-UHFFFAOYSA-N phenyl benzoate Chemical compound C=1C=CC=CC=1C(=O)OC1=CC=CC=C1 FCJSHPDYVMKCHI-UHFFFAOYSA-N 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
- 230000002747 voluntary effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
-
- 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
-
- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59104482A JPS60248646A (ja) | 1984-05-25 | 1984-05-25 | ポリエステル屑の解重合方法 |
| US06/735,837 US4609680A (en) | 1984-05-25 | 1985-05-20 | Process for the depolymerization of polyester scrap |
| EP19850303572 EP0174062A3 (en) | 1984-05-25 | 1985-05-21 | Process for the depolymerization of polyester scrap |
| KR1019850003586A KR850008352A (ko) | 1984-05-25 | 1985-05-24 | 폴리에스테르 부스러기(屑)의 해중합(解重合)방법 |
| CN85106299.7A CN1004004B (zh) | 1984-05-25 | 1985-08-21 | 聚酯碎屑的解聚法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59104482A JPS60248646A (ja) | 1984-05-25 | 1984-05-25 | ポリエステル屑の解重合方法 |
| CN85106299.7A CN1004004B (zh) | 1984-05-25 | 1985-08-21 | 聚酯碎屑的解聚法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60248646A true JPS60248646A (ja) | 1985-12-09 |
| JPH0331190B2 JPH0331190B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-05-02 |
Family
ID=76224748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59104482A Granted JPS60248646A (ja) | 1984-05-25 | 1984-05-25 | ポリエステル屑の解重合方法 |
Country Status (5)
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6214893B1 (en) | 1997-11-14 | 2001-04-10 | Mitsubishi Heavy Industries, Ltd. | Polyester decomposition process and polyester monomerization system |
| WO2021200754A1 (ja) | 2020-03-31 | 2021-10-07 | ユニチカ株式会社 | 二軸延伸ポリエステル樹脂系フィルム及びその製造方法 |
| CN115443304A (zh) * | 2020-04-13 | 2022-12-06 | 伊士曼化工公司 | 化学回收着色塑料混合物 |
| JP2023027592A (ja) * | 2021-08-17 | 2023-03-02 | ユニチカ株式会社 | 再生ポリエステル樹脂及び再生ポリエステル樹脂の製造方法 |
| JP2023028055A (ja) * | 2021-08-18 | 2023-03-03 | ユニチカ株式会社 | 再生ポリエステル繊維 |
Families Citing this family (60)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5236959A (en) * | 1992-03-12 | 1993-08-17 | Hoechst Celanese Corporation | Process for recycling polyester/cotton blends |
| US5223544A (en) * | 1992-03-31 | 1993-06-29 | Shell Oil Company | Process for the removal of foreign materials from a post-consumer plyethylene terephthalate feed stream |
| MX9604038A (es) * | 1994-03-11 | 1997-09-30 | Monsanto Co | Composiciones de poliester recirculado retardadoras de llama. |
| US5532404A (en) * | 1994-05-27 | 1996-07-02 | E. I. Du Pont De Nemours And Company | Monomer recovery process for contaminated polymers |
| US5710315A (en) * | 1994-05-27 | 1998-01-20 | E. I. Du Pont De Nemours And Company | Monomer recovery process for contaminated polymers |
| US5559159A (en) * | 1995-12-07 | 1996-09-24 | Eastman Chemical Company | Process including depolymerization in polyester reactor for recycling polyester materials |
| US5635584A (en) * | 1995-12-07 | 1997-06-03 | Eastman Chemical Company | Process including glycolysis and subsequent purification for recycling polyester materials |
| DE19643479B4 (de) * | 1996-10-22 | 2006-04-20 | Zimmer Ag | Verfahren zur Herstellung von Polyethylenterephthalat aus Polyethylenterephthalat-Abfall |
| US6410607B1 (en) | 1999-02-10 | 2002-06-25 | Eastman Chemical Company | Glycolysis process for recycling of post-consumer pet |
| FR2825701B1 (fr) * | 2001-06-08 | 2003-09-12 | Ct D Etudes Sur Le Recyclage D | Procede de synthese de diols par alcoolyse de polyesters en milieu fondu en reacteur discontinu ou continu, application au recyclage des polyesters |
| KR100430627B1 (ko) * | 2001-07-10 | 2004-05-10 | 주식회사 코오롱 | 알칼리 이용성 폴리에스테르의 제조방법 |
| DE60222792T2 (de) * | 2001-10-16 | 2008-07-17 | Teijin Ltd. | Verfahren zur rezyklierung von pet-flaschen |
| US20030134915A1 (en) * | 2001-12-17 | 2003-07-17 | Scantlebury Geoffrey Raymond | Production of transparent polyester using waste |
| AU2002354493B2 (en) * | 2001-12-18 | 2008-04-24 | Pet Rebirth Co., Ltd. | Method of deionizing solution yielded by polyester decomposition with ethylene glycol |
| MXPA05009111A (es) * | 2003-02-27 | 2006-01-27 | Petrecycle Ltd | Metodo para la descontaminacion de tereftalato de polietileno. |
| US7297721B2 (en) * | 2003-06-20 | 2007-11-20 | Futura Polyesters Limited | Process for controlled polymerization of a mixed polymer |
| US7812077B2 (en) * | 2003-12-17 | 2010-10-12 | Sabic Innovative Plastics Ip B.V. | Polyester compositions, method of manufacture, and uses thereof |
| US7807745B2 (en) * | 2006-01-27 | 2010-10-05 | Sabic Innovative Plastics Ip B.V. | Molding compositions containing polycarbonate and modified polybutylene terephthalate (PBT) random copolymers derived from polyethylene terephthalate (PET) |
| US8067493B2 (en) * | 2003-12-30 | 2011-11-29 | Sabic Innovative Plastics Ip B.V. | Polymer compositions, method of manufacture, and articles formed therefrom |
| WO2005092963A1 (en) * | 2004-03-26 | 2005-10-06 | Do Gyun Kim | Recycled method for a wasted polymer which is mixed polyester polyamide and reclaimed materials thereof |
| US7902263B2 (en) * | 2006-01-27 | 2011-03-08 | Sabic Innovative Plastics Ip B.V. | Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET) |
| WO2007089747A1 (en) * | 2006-01-27 | 2007-08-09 | General Electric Company | Articles derived from compositions containing modified polybutylene terephthalate (pbt) random copolymers derived from polyethylene terephthalate (pet) |
| US8680167B2 (en) * | 2006-01-27 | 2014-03-25 | Sabic Innovative Plastics Ip B.V. | Molding compositions containing fillers and modified polybutylene terephthalate (PBT) random copolymers derived from polyethylene terephthalate (PET) |
| US7902264B2 (en) * | 2006-01-27 | 2011-03-08 | Sabic Innovative Plastics Ip B.V. | Polytrimethylene terephthalate (PTT) derived from polyethylene terephthalate (PET) and containing PET residues |
| US7923506B2 (en) * | 2006-01-27 | 2011-04-12 | Sabic Innovative Plastics Ip B.V. | Molding compositions containing modified polybutylene terephthalate (PBT) random copolymers derived from polyethylene terephthalate (PET) |
| JP2009525358A (ja) * | 2006-01-27 | 2009-07-09 | ゼネラル・エレクトリック・カンパニイ | ポリアルキレンテレフタレート類とｐｅｔ由来の変性ポリブチレンテレフタレート（ｐｂｔ）類とを含む成形組成物 |
| US7799836B2 (en) * | 2006-03-01 | 2010-09-21 | Sabic Innovative Plastics Ip B.V. | Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET) |
| US8309656B2 (en) * | 2006-07-26 | 2012-11-13 | Sabic Innovative Plastics Ip B.V. | Elastomer blends containing polycarbonates and copolyetheresters derived from polyethylene terephthalate, method of manufacture, and articles therefrom |
| US7799838B2 (en) * | 2006-07-26 | 2010-09-21 | Sabic Innovative Plastics Ip B.V. | Elastomer blends of polyesters and copolyetheresters derived from polyethylene terephthalate, method of manufacture, and articles therefrom |
| US7799892B2 (en) * | 2008-05-02 | 2010-09-21 | Sabic Innovative Plastics Ip B.V. | Method of making polybutylene terephthalate and compositions and articles comprising the same |
| US7928150B2 (en) * | 2008-05-06 | 2011-04-19 | Sabic Innovative Plastics Ip B.V. | Process for the manufacture of lonomeric polybutylene terephthalate from polyethylene terephthalate, and compositions and articles thereof |
| US8138244B2 (en) * | 2008-12-30 | 2012-03-20 | Sabic Innovative Plastics Ip B.V. | Reinforced polyester compositions, method of manufacture, and articles thereof |
| US7910657B2 (en) * | 2008-12-30 | 2011-03-22 | Sabic Innovative Plastics Ip B.V. | Process for the manufacture of polybutylene terephthalate copolymers from polyethylene terephthalate, and compositions and articles thereof |
| US20100168317A1 (en) * | 2008-12-30 | 2010-07-01 | Cahoon-Brister Kristen | Poly(butylene terephthalate) compositions, methods of manufacture, and articles thereof |
| US20100168328A1 (en) * | 2008-12-30 | 2010-07-01 | Ganesh Kannan | Process for the manufacture of polycyclohexane dimethylene terephthalate copolymers from polyethylene terephthalate, and compositions and articles thereof |
| US20100168321A1 (en) * | 2008-12-30 | 2010-07-01 | Cahoon-Brister Kristen | Poly(butylene terephthalate) compositions, methods of manufacture, and articles thereof |
| KR101240338B1 (ko) | 2010-04-19 | 2013-03-07 | 웅진케미칼 주식회사 | 폐폴리에스테르를 이용한 재생 폴리에스테르 단섬유 및 그 제조방법 |
| US8716378B2 (en) | 2010-06-29 | 2014-05-06 | Sabic Innovative Plastics Ip B.V. | Flame resistant polyester compositions, method of manufacture, and articles thereof |
| US8686072B2 (en) | 2010-06-29 | 2014-04-01 | Sabic Innovative Plastics Ip B.V. | Flame resistant polyester compositions, method of manufacture, and articles therof |
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| WO2012170978A2 (en) | 2011-06-10 | 2012-12-13 | Felice Kristopher M | Clear coatings, acrylic coatings |
| US9234074B2 (en) | 2012-04-20 | 2016-01-12 | Perpetual Global Technologies Limited | Flakes of ester mixtures and methods for their production |
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| US9732026B2 (en) | 2012-12-14 | 2017-08-15 | Resinate Technologies, Inc. | Reaction products containing hydroxyalkylterephthalates and methods of making and using same |
| US9255194B2 (en) | 2013-10-15 | 2016-02-09 | International Business Machines Corporation | Methods and materials for depolymerizing polyesters |
| CN104710601B (zh) * | 2015-01-23 | 2016-08-24 | 树业环保科技股份有限公司 | 废旧pet材料脱色回收制备高纯pet切片的方法及制品 |
| US9815808B2 (en) | 2016-02-29 | 2017-11-14 | Regents Of The University Of Minnesota | Recovery of monomer from polyurethane materials by depolymerization |
| JP2022552207A (ja) | 2019-10-08 | 2022-12-15 | イーストマン ケミカル カンパニー | 再資源化含量を有する結晶化可能な反応器級樹脂のための触媒システム |
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| DE102021212695A1 (de) | 2021-11-11 | 2023-05-11 | Thyssenkrupp Ag | Vorrichtung und verfahren zur herstellung eines polyester-depolymerisats sowie vorrichtung und verfahren zur herstellung eines polyesters |
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| WO2023217707A1 (en) | 2022-05-10 | 2023-11-16 | Polymetrix Ag | Method for the preparation of a polyester |
| IT202200016851A1 (it) | 2022-08-05 | 2024-02-05 | Chempet Srl | Processo per purificare bis(2-idrossietil)tereftalato ottenuto da depolimerizzazione di rifiuti contenenti polietilene tereftalato. |
| US12401563B2 (en) | 2023-01-08 | 2025-08-26 | Keysight Technologies, Inc. | Methods, systems, and computer readable media for detecting network service anomalies |
| SE546629C2 (en) * | 2023-06-30 | 2025-01-02 | Rewin Textiles AB | Process and system for mixed fabric rejuvination |
| EP4549486A1 (en) | 2023-10-31 | 2025-05-07 | Polymetrix AG | Monomer recycling of polyesters |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB610136A (en) * | 1946-03-28 | 1948-10-12 | Royden Lewis Heath | Degradation of aromatic linear polyesters |
| GB1052927A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1962-09-27 | |||
| NL301426A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1962-12-06 | |||
| NL128500C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1963-11-12 | 1900-01-01 | ||
| GB1221657A (en) * | 1967-06-29 | 1971-02-03 | Agfa Gevaert Nv | Preparation of moulding material starting from polyethylene terepthalate |
| US3884850A (en) * | 1970-02-13 | 1975-05-20 | Fiber Industries Inc | Continuous atmospheric depolymerization of polyester |
| JPS5027510B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1971-12-03 | 1975-09-08 | ||
| US4439549A (en) * | 1982-11-22 | 1984-03-27 | Texaco Inc. | Novel aromatic polyester polyol mixtures made from polyethylene terephthalate residues and alkylene oxides |
| US4485196A (en) * | 1983-09-26 | 1984-11-27 | Texaco Inc. | Liquid phase polyols which are alkylene oxide adducts of terephthalic esters from recycled polyethylene terephthalate |
-
1984
- 1984-05-25 JP JP59104482A patent/JPS60248646A/ja active Granted
-
1985
- 1985-05-20 US US06/735,837 patent/US4609680A/en not_active Expired - Lifetime
- 1985-05-21 EP EP19850303572 patent/EP0174062A3/en not_active Withdrawn
- 1985-05-24 KR KR1019850003586A patent/KR850008352A/ko not_active Withdrawn
- 1985-08-21 CN CN85106299.7A patent/CN1004004B/zh not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6214893B1 (en) | 1997-11-14 | 2001-04-10 | Mitsubishi Heavy Industries, Ltd. | Polyester decomposition process and polyester monomerization system |
| WO2004087627A1 (ja) * | 1997-11-14 | 2004-10-14 | Nobuo Ishihara | ポリエステルの分解方法及びポリエステルのモノマー化装置 |
| WO2021200754A1 (ja) | 2020-03-31 | 2021-10-07 | ユニチカ株式会社 | 二軸延伸ポリエステル樹脂系フィルム及びその製造方法 |
| KR20230011919A (ko) | 2020-03-31 | 2023-01-25 | 유니티카 가부시끼가이샤 | 이축연신 폴리에스테르 수지계 필름 및 그 제조방법 |
| CN115443304A (zh) * | 2020-04-13 | 2022-12-06 | 伊士曼化工公司 | 化学回收着色塑料混合物 |
| JP2023027592A (ja) * | 2021-08-17 | 2023-03-02 | ユニチカ株式会社 | 再生ポリエステル樹脂及び再生ポリエステル樹脂の製造方法 |
| JP2023028055A (ja) * | 2021-08-18 | 2023-03-03 | ユニチカ株式会社 | 再生ポリエステル繊維 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0174062A3 (en) | 1987-05-27 |
| US4609680A (en) | 1986-09-02 |
| CN85106299A (zh) | 1987-02-18 |
| EP0174062A2 (en) | 1986-03-12 |
| JPH0331190B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-05-02 |
| CN1004004B (zh) | 1989-04-26 |
| KR850008352A (ko) | 1985-12-16 |
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