DE1520524A1 - Process for the production of thread- or film-forming polyesters of terephthalic acid - Google Patents
Process for the production of thread- or film-forming polyesters of terephthalic acidInfo
- Publication number
- DE1520524A1 DE1520524A1 DE19541520524 DE1520524A DE1520524A1 DE 1520524 A1 DE1520524 A1 DE 1520524A1 DE 19541520524 DE19541520524 DE 19541520524 DE 1520524 A DE1520524 A DE 1520524A DE 1520524 A1 DE1520524 A1 DE 1520524A1
- Authority
- DE
- Germany
- Prior art keywords
- terephthalic acid
- acid
- production
- film
- thread
- 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.)
- Pending
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
- C08G63/82—Preparation processes characterised by the catalyst used
- C08G63/87—Non-metals or inter-compounds thereof
-
- 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
- C08G63/85—Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
Description
Verfahren zur Herstellung von feden- oder flmbildenden Polyestern der Terephthalsäure Fassr- und filmbildende Polyester der Terephtalsdure mit Polymetylengylkeleknt mit 2 bis 10 Kohlenstoffabtomen im Molekul sind in der USA-Patentschift 2 465 319 beshrieben. Ein @behnisch wichtiger Vertreter dieser Klase ist Polyäthylentesephalat, welches durch Umesterung von Äthylenglydkcl mit Terephthalasue dimethylester und anschliessend Polykondesation bei höheren Temperaturen und veMindrten Drucken erhalten wird. Process for the production of feather or film-forming polyesters of terephthalic acid barrel and film-forming polyester of terephthalic acid with polymethylene glycol with 2 to 10 carbon atoms in the molecule are U.S. Patent 2,465,319 described. An @behnically important representative of this class is polyethylene tesephalate, which by transesterification of Äthylenglydkcl with Terephthalasue dimethylester and then obtained polycondensation at higher temperatures and reduced pressures will.
Es ist bekennat, diese Umesterung und Polykondeneation unuer Verwendung verschiedener Katalysatoren durchzuführen. Solche bekannten Katalysatoren sind z.B. Zinkactat, Mangesimuscetat, Manganscetat, Antimontrioxyd und Bleimonoxyd, gegebenenfalls im Gemisch miteinander und bzw. oder mit Lithiuhydrid.This transesterification and polycondensation is known to be used perform different catalysts. Such known catalysts are e.g. Zinc actate, manganese acetate, Manganese acetate, antimony trioxide and lead monoxide, optionally in a mixture with one another and / or with lithium hydride.
Es wurde nun gefunden, dass die Umesterung von Terephtahsäredialkylestern mit Glykolenund die anschliessende Polykondensation in wirdksamer Weise unter dem katalytischen Einfluss von Titansäureesten oder Geminchen von Titansäureestern mit an sich bekannten Katalysatoren durahgefahrt werdcn kdnnen.It has now been found that the transesterification of terephthalic dialkyl esters with glycols and the subsequent polycondensation in an effective manner under the catalytic influence of titanic acid residues or geminchen of titanic acid esters with known catalysts can be driven through.
Das erfindungsgemässe Verfahren zur Herstellung von faden-oder filabildenden Polyestern der Terephthalnwure durch Umestoxmng von Terephthalsäuredialkylestern mit Glykolen, besonders Ätyljenglykol, und Polykondensation der erhaltenen Glykolester der Terephthalsäure, besonders Bis-(2-oxyäthyl)-terephthalat, in G, egenwart von Katalysatoren besteht darin, dass die Umeaterung und die Polykondtnsation in Gegenwart eines einen Titansäureester enthaltender Kaltalsatore durchgeführt wird.The process according to the invention for the production of thread-forming or filament-forming Polyesters of terephthalic acid by the conversion of terephthalic acid dialkyl esters with glycols, especially ethylene glycol, and polycondensation of the glycol esters obtained of terephthalic acid, especially bis (2-oxyethyl) terephthalate, in G, present from Catalysts is that the Umeatung and the Polkondtnsation in the presence a Kaltalsatore containing a titanic acid ester is carried out.
Bin im Rahmen der Erfindung bevorzugter Titansäureester ist Tetraisopropyltitanant, und ein beaonders bevorzugter Katalysator ist ein Gemiach nue Zinkaaetat und Tatraisopropyltitanat.In the context of the invention, the preferred titanic acid ester is tetraisopropyltitanant, and a particularly preferred catalyst is a mixture of zinc acetate and tatra isopropyl titanate.
Titansäreester, wie Tetraisopropyltituantj, zeichne sich dadruch aus, dans sie nur in äussert geringen Mengen zum Reaktionsgemisch zugesstzt zu werden brauchen, um die gewünschte Eigenviacoaität sa ers. Hierdurch v. ird dem Ausfallen und der Ansammlung des Katalyaators in Endprodukt entgegengewirkt, und die Wartungskosteo werden herabgesetzt.Titanium acid esters, such as tetraisopropyltituantj, are characterized by because they are only added to the reaction mixture in extremely small amounts need to sa ers the desired Eigenviacoaität. As a result of this v. will fail and the accumulation of the catalyst in the end product is counteracted, and the maintenance cost are reduced.
Das erfindungsgemässe Verfahren ist auch auf die herstelung modifizierter Polyäthylenterephthalate anwendbar, die mit kleinon Mengen, B. B. bis zu 20 %, anderer Dicarbonaäuren modifishort ois Z. B. Zcönnen Glykol, Terephtahlsäure oder ein Dialkylester derselben und eine zweite ordure oder ein Ester derselben unter Bildeung eires Mischpolyesters miteinander umgesetzt werden, wobei die zweite Säure Isopthalsäure, Bibenoe-§ure, hexahydroterephthalsäure, Adipinsäure, Schbacnsä@re, Azelainsäure, eine naphthalindicarbonsäure@ 2,5-Bimethylterephthalsäure oder Bis-p-carbonxy-phensxyäth@@@@ @@@@@@@@ DieHerstellungvonPolyeaerndurchUoetzunnithDdßren61ykolen ale Äthylenglkol gehört ebsnfalls in den Rahmen der Erfindung. Diese Glykole besitzen die allgemeine Formel HO (CH2) OH, wobei "n" eine ganze Zahl von 2 bis 10 einschisesslich bedeutet. Polyäthylenglykol e mit Mo@ekulargewichten von etwa 106 bis 6000 können ebenfalla zur Herstellung der Polykondeneate verwendet werden. Anstelle von Terephthalaäurodimethyleater karm al, Monomeres jeder Terephthalsdureeeter gesgttigter sliphatiBcher einwertiger Alkohole mit bia su 7 Kohlenstoffatomen verwendet werden.The method according to the invention is also modified for production Polyethylene terephthalate applicable with small amounts, B. B. up to 20%, others Dicarboxylic acids modified or, for example, glycol, terephthalic acid or a dialkyl ester the same and a second ordure or an ester thereof to form a mixed polyester are reacted with each other, the second acid isophthalic acid, Bibenoe-§ure, hexahydroterephthalic acid, adipic acid, schbacic acid, azelaic acid, a naphthalenedicarboxylic acid 2,5-bimethylterephthalic acid or bis-p-carbonxy-phensxyäth @@@@ @@@@@@@@ The manufacture of polyesters by UoetzunnithDdßren61ykolen ale Äthylenglkol also belongs within the scope of the invention. Own these glycols the general formula HO (CH2) OH, where "n" is an integer from 2 to 10 including means. Polyethylene glycols with molecular weights of about 106 to 6000 can can also be used to produce the polycondeneates. Instead of terephthalic acid dimethyl ether karm al, monomer of any terephthalic acid, saturated sliphatic monovalent Alcohols with bia su 7 carbon atoms can be used.
In dem felgenden Beispiel beziehen sich die Teile auf Gewichtsmengen.In the example below, the parts relate to amounts by weight.
P e i s p i e l In einen nit elnem Kühler versehenen Kolben werden 50 Teile Terephthalsäuredimethylester, 50 Teil Äthlenglykol, 0,03 Teile Zinkacetat-Dihydrat (0,053 Mol-%, bezgen auf den Terephthalsäureeeter) und 0, 005 Teile Tetraisopropyltitanat (0,007 Mol-%, bezogen auf den Terphthalsäureester) eingebracht.P e i s p i e l In a flask equipped with a cooler 50 parts of dimethyl terephthalate, 50 parts of ethylene glycol, 0.03 part of zinc acetate dihydrate (0.053 mol%, based on the terephthalic acid ester) and 0.005 parts of tetraisopropyl titanate (0.007 mol%, based on the terphthalic acid ester) introduced.
Dae Gemisch wird unter Atmosphärendruchk erhitst. Bei 171° C bo ginnt Methanol überzudestillieren. Man orhitst weiter Mit einer sochen Geschwindigkeit, dass das Gemisch fortlaufend schwach eiedet, bis sich kein weiteres Metanol mehr entwickelt. Die Endetmperatur beträgt 220° C. Die Umsetzung dauert 1,4 Stunden.The mixture is heated under atmospheric pressure. Bo starts at 171 ° C Distill over methanol. You keep going at such a speed that the mixture continues to boil gently until there is no more methanol developed. The final temperature is 220 ° C. The reaction takes 1.4 hours.
Das Erhitzen wird dann fortgesetzt, bia die Eigenviscosität des Polykondensates etwa 0,5 oder mehr beträgt. Im allgemeinen erfolgt die Polkyondensation unter Vakuum, um flüchtige Stoffs abzutreiben.The heating is then continued, depending on the inherent viscosity of the polycondensate is about 0.5 or more. In general, the polycondensation takes place under vacuum, to drive off volatile matter.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38328253A | 1953-09-30 | 1953-09-30 | |
US38338153A | 1953-09-30 | 1953-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1520524A1 true DE1520524A1 (en) | 1969-12-11 |
Family
ID=27010121
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1954P0012740 Pending DE1152259B (en) | 1953-09-30 | 1954-09-22 | Process for the production of thread- or film-forming polyesters of terephthalic acid |
DE19541520524 Pending DE1520524A1 (en) | 1953-09-30 | 1954-09-22 | Process for the production of thread- or film-forming polyesters of terephthalic acid |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1954P0012740 Pending DE1152259B (en) | 1953-09-30 | 1954-09-22 | Process for the production of thread- or film-forming polyesters of terephthalic acid |
Country Status (4)
Country | Link |
---|---|
DE (2) | DE1152259B (en) |
FR (1) | FR1149118A (en) |
GB (1) | GB769220A (en) |
NL (1) | NL112401C (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL240187A (en) * | 1958-06-14 | |||
US3055870A (en) * | 1959-01-26 | 1962-09-25 | Ici Ltd | Polyesters condensed in presence of pentavalent antimony compound as catalyst |
US3060223A (en) * | 1960-03-17 | 1962-10-23 | Standard Oil Co | Preparation of dihydroxyethyl terephthalate |
NL251344A (en) * | 1960-05-07 | 1964-02-25 | ||
NL288813A (en) * | 1962-03-10 | |||
JPS4841277B1 (en) * | 1969-06-19 | 1973-12-05 | ||
JPS5524457B2 (en) * | 1973-12-20 | 1980-06-28 | ||
DE2828464C2 (en) * | 1978-06-29 | 1980-08-28 | Hoechst Ag, 6000 Frankfurt | Process for the production of linear, light-stabilized polyesters matted with TiO2 |
DE2828463C2 (en) * | 1978-06-29 | 1980-08-28 | Hoechst Ag, 6000 Frankfurt | Process for the production of linear, light-stabilized polyesters matted with TiO2 |
DE2945729C2 (en) * | 1979-11-13 | 1982-06-09 | Chemische Werke Hüls AG, 4370 Marl | Process for the production of high molecular weight, linear polyesters |
US4424140A (en) * | 1982-06-03 | 1984-01-03 | Union Carbide Corporation | Stabilization of polycondensation catalysts |
US4468489A (en) * | 1982-06-03 | 1984-08-28 | Union Carbide Corporation | Stabilization of polycondensation catalysts |
DE19518943C2 (en) * | 1995-05-23 | 1999-12-09 | Inventa Fischer Gmbh | Process for the production of polyesters using titanium-containing catalyst-inhibitor combinations |
CN1240749C (en) | 2001-09-20 | 2006-02-08 | 帝人株式会社 | Process for producing poly(ethylene-aromatic dicarboxylate ester) resin and resin product |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2163511A (en) * | 1939-06-20 | Bracket | ||
US2249950A (en) * | 1938-05-28 | 1941-07-22 | Bell Telephone Labor Inc | Method of preparing linear polyesters |
US2650213A (en) * | 1951-07-24 | 1953-08-25 | Du Pont | Production of polyethylene terephthalate |
-
1954
- 1954-09-10 GB GB26260/54A patent/GB769220A/en not_active Expired
- 1954-09-22 DE DE1954P0012740 patent/DE1152259B/en active Pending
- 1954-09-22 DE DE19541520524 patent/DE1520524A1/en active Pending
- 1954-09-28 NL NL191121A patent/NL112401C/xx active
- 1954-09-30 FR FR1149118D patent/FR1149118A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1152259B (en) | 1963-08-01 |
FR1149118A (en) | 1957-12-20 |
GB769220A (en) | 1957-03-06 |
NL112401C (en) | 1961-07-17 |
NL191121B (en) | 1961-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
SH | Request for examination between 03.10.1968 and 22.04.1971 |