KR900018205A - 디메틸 테레프탈레이트로부터 폴리에틸렌 테레프탈레이트를 제조하는 방법 - Google Patents
디메틸 테레프탈레이트로부터 폴리에틸렌 테레프탈레이트를 제조하는 방법 Download PDFInfo
- Publication number
- KR900018205A KR900018205A KR1019900007320A KR900007320A KR900018205A KR 900018205 A KR900018205 A KR 900018205A KR 1019900007320 A KR1019900007320 A KR 1019900007320A KR 900007320 A KR900007320 A KR 900007320A KR 900018205 A KR900018205 A KR 900018205A
- Authority
- KR
- South Korea
- Prior art keywords
- amount
- terephthalic acid
- manganese
- precipitate
- filtration
- 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
- C08G63/02—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
-
- 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
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/83—Alkali metals, alkaline earth metals, beryllium, magnesium, copper, silver, gold, zinc, cadmium, mercury, manganese, or compounds thereof
Landscapes
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 방법을 실시하는 바람직한 방법을 묘사하는 생산공정도이다.
Claims (8)
- 디메틸테레프탈레이트와 에틸렌 글리콜을 2가 망간촉매를 사용하여 반응시켜 테레프탈산의 비스 글리콜에스테르 및 메탄올을 형성시킨 후, 비스 글리콜 에스테르를 중합시켜 고분자량 폴리에틸렌테레프탈레이트를 제조하는 방법에 있어서, 존재하는 망간량과 화학량론적으로 약 등량 이상인 양의 테레프탈산 및/또는 이소프탈산을 첨가하여 비스 글리콜 에스테르를 형성한 후 2가 망간촉매를 침전시키고, 비스 글리콜 에스테르 생성물을 중합시키기 전에 침전물에 제거하는 단계를 포함함을 특징으로 하는 방법.
- 제1항에 있어서, 침전물을 약 190℃ 미만의 온도에서 여과하여 제거하는 방법.
- 제1항에 있어서, 첨가한 테레프탈산의 양이, 존재하는 망간량과 화학량론적으로 약 등량 이상인 양 내지 화학론적으로 망간량의 약 2배 이하인 방법.
- 제1항에 있어서, 망간촉매가 아세트산망간인 방법.
- 제1항에 있어서, 테레프탈산을 첨가하기 전에 시스템으로부터 메탄올을 제거하는 방법.
- 제1항에 있어서, 에틸렌 글리콜을 제거하는 축합 반응으로 중합시키는 방법.
- 제2항에 있어서, 여과단계에 보유용량이 1.5μ인 글래스휠터지를 사용하는 방법.
- 제1항에 있어서, 약 160내지 180℃에서 여과하여 침전물을 제거하는 방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US355645 | 1989-05-22 | ||
US07/355,645 US4952668A (en) | 1989-05-22 | 1989-05-22 | Process for the production of polyethyleneterephthalate from dimethylterephthalate |
Publications (1)
Publication Number | Publication Date |
---|---|
KR900018205A true KR900018205A (ko) | 1990-12-20 |
Family
ID=23398243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019900007320A KR900018205A (ko) | 1989-05-22 | 1990-05-22 | 디메틸 테레프탈레이트로부터 폴리에틸렌 테레프탈레이트를 제조하는 방법 |
Country Status (5)
Country | Link |
---|---|
US (1) | US4952668A (ko) |
EP (1) | EP0399459A3 (ko) |
JP (1) | JPH03103434A (ko) |
KR (1) | KR900018205A (ko) |
CA (1) | CA2017255A1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5252615A (en) * | 1992-01-23 | 1993-10-12 | The Sherwin-Williams Company | Aqueous coating compositions from polyethylene terephthalate |
DE4435920A1 (de) * | 1994-10-07 | 1996-04-11 | Basf Ag | Verfahren zur Abtrennung von Heteropolyverbindungen aus Polyethern, Polyestern und Polyetherestern |
JPH11109477A (ja) | 1997-10-03 | 1999-04-23 | Minolta Co Ltd | デート表示装置及びこのデート表示装置を備えたカメラ |
CN104607105A (zh) * | 2015-01-05 | 2015-05-13 | 福建省鑫东华实业有限公司 | 聚对苯二甲酸乙二醇酯生产设备的淋洗系统及淋洗方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3070575A (en) * | 1958-01-27 | 1962-12-25 | Du Pont | Process for the preparation of polyesters from dicarboxylic acids and bis (hydroxy-alkyl) esters |
US3487049A (en) * | 1967-01-04 | 1969-12-30 | Du Pont | Process for producing polyethylene terephthalate |
US3551386A (en) * | 1968-06-26 | 1970-12-29 | Monsanto Co | Polyester polymerization process,prepolymer and product |
US3661858A (en) * | 1969-10-02 | 1972-05-09 | Goodyear Tire & Rubber | Reducing polyester reactor scale |
US4154921A (en) * | 1978-06-19 | 1979-05-15 | E. I. Du Pont De Nemours And Company | Preparation of polyesters |
-
1989
- 1989-05-22 US US07/355,645 patent/US4952668A/en not_active Expired - Lifetime
-
1990
- 1990-05-22 KR KR1019900007320A patent/KR900018205A/ko not_active Application Discontinuation
- 1990-05-22 EP EP19900109690 patent/EP0399459A3/en not_active Withdrawn
- 1990-05-22 CA CA002017255A patent/CA2017255A1/en not_active Abandoned
- 1990-05-22 JP JP2130404A patent/JPH03103434A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0399459A2 (en) | 1990-11-28 |
CA2017255A1 (en) | 1990-11-22 |
EP0399459A3 (en) | 1991-11-21 |
US4952668A (en) | 1990-08-28 |
JPH03103434A (ja) | 1991-04-30 |
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WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |