CH555312A - Verfahren zur herstellung von gereinigtem bis-((beta)-hydroxyaethyl)-terephthalat. - Google Patents
Verfahren zur herstellung von gereinigtem bis-((beta)-hydroxyaethyl)-terephthalat.Info
- Publication number
- CH555312A CH555312A CH1084471A CH1084471A CH555312A CH 555312 A CH555312 A CH 555312A CH 1084471 A CH1084471 A CH 1084471A CH 1084471 A CH1084471 A CH 1084471A CH 555312 A CH555312 A CH 555312A
- Authority
- CH
- Switzerland
- Prior art keywords
- hydroxyaethyl
- terephthalate
- beta
- purified
- preparation
- Prior art date
Links
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
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/785—Preparation processes characterised by the apparatus used
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/24—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran
- C07C67/26—Preparation of carboxylic acid esters by reacting carboxylic acids or derivatives thereof with a carbon-to-oxygen ether bond, e.g. acetal, tetrahydrofuran with an oxirane ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
- C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
- C08G63/183—Terephthalic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP45064471A JPS4915255B1 (de) | 1970-07-23 | 1970-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH555312A true CH555312A (de) | 1974-10-31 |
Family
ID=13259160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1084471A CH555312A (de) | 1970-07-23 | 1971-07-22 | Verfahren zur herstellung von gereinigtem bis-((beta)-hydroxyaethyl)-terephthalat. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3803003A (de) |
| JP (1) | JPS4915255B1 (de) |
| CA (1) | CA954820A (de) |
| CH (1) | CH555312A (de) |
| DE (1) | DE2136688B2 (de) |
| FR (1) | FR2103115A5 (de) |
| GB (1) | GB1344487A (de) |
| NL (1) | NL7110095A (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4076946A (en) * | 1974-01-02 | 1978-02-28 | Hercofina | Hydrogenation of molten aldehydic dimethyl terephthalate |
| JPS6241084U (de) * | 1985-08-30 | 1987-03-11 | ||
| US5635584A (en) * | 1995-12-07 | 1997-06-03 | Eastman Chemical Company | Process including glycolysis and subsequent purification for recycling polyester materials |
| JP3715812B2 (ja) * | 1998-12-10 | 2005-11-16 | 株式会社アイエス | ポリエチレンテレフタレート廃棄物のケミカルリサイクル方法 |
| US6630601B1 (en) | 1999-08-04 | 2003-10-07 | Aies Company Limited | Methods for the preparation or purification of bis-β-hydroxyethyl terephthalate |
| CA2395061A1 (en) * | 2000-02-04 | 2001-08-09 | Aies Co., Ltd. | Process for producing high-purity bis-.beta.-hydroxyethyl terephthalate |
| EP1306364A4 (de) * | 2000-07-31 | 2004-03-31 | Aies Co Ltd | Bis-beta-hydroxyethyl-terephthalate |
| JPWO2003101929A1 (ja) * | 2002-06-04 | 2005-09-29 | 株式会社アイエス | ビス（２−ヒドロキシエチル）テレフタレートの精製方法 |
| US7390869B2 (en) * | 2005-06-13 | 2008-06-24 | Eastman Chemical Company | Process for removing metal species in the presence of hydrogen and a porous material and polyester polymer containing reduced amounts of metal species |
| FR3053691B1 (fr) | 2016-07-05 | 2018-08-03 | IFP Energies Nouvelles | Procede de depolymerisation d'un polyester comprenant du polyethylene terephtalate opaque |
-
1970
- 1970-07-23 JP JP45064471A patent/JPS4915255B1/ja active Pending
-
1971
- 1971-07-14 US US00162624A patent/US3803003A/en not_active Expired - Lifetime
- 1971-07-15 GB GB3333571A patent/GB1344487A/en not_active Expired
- 1971-07-20 FR FR7126545A patent/FR2103115A5/fr not_active Expired
- 1971-07-22 NL NL7110095A patent/NL7110095A/xx unknown
- 1971-07-22 DE DE19712136688 patent/DE2136688B2/de active Granted
- 1971-07-22 CH CH1084471A patent/CH555312A/de not_active IP Right Cessation
- 1971-07-23 CA CA118,970A patent/CA954820A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2136688A1 (de) | 1972-01-27 |
| NL7110095A (de) | 1972-01-25 |
| GB1344487A (en) | 1974-01-23 |
| DE2136688B2 (de) | 1976-07-15 |
| US3803003A (en) | 1974-04-09 |
| JPS4915255B1 (de) | 1974-04-13 |
| FR2103115A5 (de) | 1972-04-07 |
| CA954820A (en) | 1974-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |