BR0100020A - Enhanced titanyl oxalate catalyst composition, improved process to produce a polyester, and improved polyester - Google Patents
Enhanced titanyl oxalate catalyst composition, improved process to produce a polyester, and improved polyesterInfo
- Publication number
- BR0100020A BR0100020A BR0100020-9A BR0100020A BR0100020A BR 0100020 A BR0100020 A BR 0100020A BR 0100020 A BR0100020 A BR 0100020A BR 0100020 A BR0100020 A BR 0100020A
- Authority
- BR
- Brazil
- Prior art keywords
- catalyst
- oxalate
- polyester
- titanyl
- antimony
- Prior art date
Links
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
"COMPOSIçãO CATALISADORA DE OXALATO DE TITANILA INTENSIFICADA, PROCESSO APERFEIçOADO PARA PRODUZIR UM POLIéSTER, E, POLIéSTER APERFEIçOADO" A presente invenção é baseada na verificação de que os oxalatos de não titanila podem aumentar a funcionalidade catalítica dos catalisadores de oxalato de titanila. Esta invenção fornece uma nova composição catalítica contendo um catalisador de oxalato de titanila e um intensificador de catalisador de oxalato metálico e, opcionalmente, contendo um co-catalisador metálico, tal como um catalisador baseado em antimónio. Uma relação sinérgica foi verificada entre o catalisador de oxalato de titanila e o intensificador de catalisador. Uma relação sinérgica foi também verificada entre o catalisador de oxalato de titanila, intensificador de catalisador e um co-catalisador metálico, tal como óxido de antimónio ou triacetato de antimónio. Também fornecido é um processo aperfeiçoado de produzir poliéster pela policondensação de reagentes formadores de poliéster, na presença de uma quantidade cataliticamente eficaz de um catalisador de policondensação, em que o aperfeiçoamento compreende a utilização, como catalisador de policondensação, da nova composição de catalisador contendo um oxalato de titanila tal como oxalato de lítio titanila e um intensificador de catalisador, tal como um oxalato metálico de não titanila, como oxalato de lítio e, opcionalmente, contendo um catalisador metálico tal como óxido de antimónio ou triacetato de antimónio. O processo aperfeiçoado produz um poliéster aperfeiçoado tendo números de acetaldeído mais baixos e boa cor. A composição de oxalato de titanila/intensificador de catalisador pode ser usada como um catalisador de policondensação, em combinação com outros catalisadores, para obter atividade catalítica sinérgica. é preferida uma combinação de oxalato de lítio titanila Li~ 2~TiO(C~ 2~O~ 4~)~ 2~, oxalato de lítio, Li~ 2~(C~ 2~O~ 4~)~ 2~ com óxido de antimónio ou triacetato de antimónio ou trisglicóxido de antimónio."INTENSIFIED TITANILLA OXALATE CATALYST COMPOSITION, IMPROVED PROCESS TO PRODUCE A PERFECTED POLYESTER, AND, PERFECTED POLYESTER" The present invention is based on the finding that non-titanyl oxalates can increase the catalytic functionality of titanyl oxalate catalysts. This invention provides a new catalytic composition containing a titanyl oxalate catalyst and a metal oxalate catalyst enhancer and, optionally, containing a metal co-catalyst, such as an antimony based catalyst. A synergistic relationship was found between the titanyl oxalate catalyst and the catalyst intensifier. A synergistic relationship has also been found between the titanyl oxalate catalyst, catalyst enhancer and a metal co-catalyst, such as antimony oxide or antimony triacetate. Also provided is an improved process of producing polyester by polycondensation of polyester forming reagents, in the presence of a catalytically effective amount of a polycondensation catalyst, where the improvement comprises the use, as a polycondensation catalyst, of the new catalyst composition containing a titanyl oxalate such as lithium titanyl oxalate and a catalyst enhancer, such as a non-titanyl metal oxalate, such as lithium oxalate and, optionally, containing a metal catalyst such as antimony oxide or antimony triacetate. The improved process produces an improved polyester having lower acetaldehyde numbers and good color. The titanyl oxalate / catalyst enhancer composition can be used as a polycondensation catalyst, in combination with other catalysts, to obtain synergistic catalytic activity. a combination of Li ~ 2 ~ TiO (C ~ 2 ~ O ~ 4 ~) ~ 2 ~, lithium oxalate, Li ~ 2 ~ (C ~ 2 ~ O ~ 4 ~) ~ 2 ~ with antimony oxide or antimony triacetate or antimony trisglycoxide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17500600P | 2000-01-07 | 2000-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR0100020A true BR0100020A (en) | 2001-08-28 |
Family
ID=22638442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR0100020-9A BR0100020A (en) | 2000-01-07 | 2001-01-05 | Enhanced titanyl oxalate catalyst composition, improved process to produce a polyester, and improved polyester |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU771037B2 (en) |
| BR (1) | BR0100020A (en) |
| TW (1) | TWI232775B (en) |
| ZA (1) | ZA200100131B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6372879B1 (en) * | 2000-01-07 | 2002-04-16 | Atofina Chemicals, Inc. | Polyester polycondensation with catalyst and a catalyst enhancer |
| TWI811888B (en) | 2021-12-14 | 2023-08-11 | 國立清華大學 | Use of novel titanium catalyst and synthesizing method of polyester resins |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4213030B1 (en) * | 1962-07-19 | 1967-07-25 | ||
| JPS5432731B2 (en) * | 1972-06-19 | 1979-10-16 | ||
| US4780527A (en) * | 1987-05-06 | 1988-10-25 | Industrial Technology Research Institute | Preparation of polyesters from terephthalic acid |
-
2001
- 2001-01-03 AU AU10029/01A patent/AU771037B2/en not_active Ceased
- 2001-01-05 BR BR0100020-9A patent/BR0100020A/en not_active Application Discontinuation
- 2001-01-05 ZA ZA200100131A patent/ZA200100131B/en unknown
- 2001-01-08 TW TW090100261A patent/TWI232775B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TWI232775B (en) | 2005-05-21 |
| AU771037B2 (en) | 2004-03-11 |
| AU1002901A (en) | 2001-07-26 |
| ZA200100131B (en) | 2001-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B07A | Technical examination (opinion): publication of technical examination (opinion) | ||
| B09B | Decision: refusal |
Free format text: INDEFIRO O PEDIDO DE ACORDO COM O(S) ARTIGO(S) 8O DA LPI. |
|
| B09B | Decision: refusal |
Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL. |