UY24230A1 - POLYETHEREPHTHALATE OF ETHYLENE GLYCOL FOR APPLICATION IN MOLDED ARTICLES SUCH AS BOTTLES, CONTAINERS AND OTHERS WITH IMPROVED PROCESSABILITY, PROCESS FOR OBTAINING POLYTEREPHTHALATE OF ETHYLENE GLYCOL AND MOLDED ARTICLE - Google Patents
POLYETHEREPHTHALATE OF ETHYLENE GLYCOL FOR APPLICATION IN MOLDED ARTICLES SUCH AS BOTTLES, CONTAINERS AND OTHERS WITH IMPROVED PROCESSABILITY, PROCESS FOR OBTAINING POLYTEREPHTHALATE OF ETHYLENE GLYCOL AND MOLDED ARTICLEInfo
- Publication number
- UY24230A1 UY24230A1 UY24230A UY24230A UY24230A1 UY 24230 A1 UY24230 A1 UY 24230A1 UY 24230 A UY24230 A UY 24230A UY 24230 A UY24230 A UY 24230A UY 24230 A1 UY24230 A1 UY 24230A1
- Authority
- UY
- Uruguay
- Prior art keywords
- ethylene glycol
- bottles
- improved processability
- polyetherephthalate
- polyterephthalate
- Prior art date
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
La presente invención trata de un proceso para la preparación de un producto a base de polyester saturado termoplástico, específicamente politereftalato de etilenoglicol (PET) con características de procesabilidad mejoradas, para obtención de artículos moldeados a base de este, como vía de ejemplo, botellas, envases, películas, etc. El polyester es formado por unidades de ácido tereftálico o su ester derivado y etileno glicol, que sufren transesterificación hasta una viscosidad intrínseca entre 0,55 a 0,70 dl/g de comonómero retardante de cristalización y 150 a 400 ppm de metal procedente de uno o más catalizadores de policondensación a temperatura inferior a 310ºC, pasándose entonces para una post-condensación sólida, la temperatura variando entre 190 y 230ºC por un intervalo de 5 a 25 horas. El politereftalato de etileno glicol posee grado de cristalización < 52%.The present invention deals with a process for the preparation of a product based on thermoplastic saturated polyester, specifically polyethylene glycol terephthalate (PET) with improved processability characteristics, to obtain molded articles based on it, as an example, bottles, packaging, films, etc. Polyester is formed by units of terephthalic acid or its derivative ester and ethylene glycol, which undergo transesterification to an intrinsic viscosity between 0.55 to 0.70 dl / g of crystallization retarding comonomer and 150 to 400 ppm of metal from one. or more polycondensation catalysts at a temperature lower than 310 ° C, then passing for a solid post-condensation, the temperature varying between 190 and 230 ° C for an interval of 5 to 25 hours. Polyethylene glycol terephthalate has a degree of crystallization <52%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9502212A BR9502212A (en) | 1995-06-09 | 1995-06-09 | Polyethylene glycol polyetherphthalate for application in molded articles such as packaging bottles and others with improved processability process for obtaining ethylene glycol polyetherphthalate and molded article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UY24230A1 true UY24230A1 (en) | 1996-11-08 |
Family
ID=4061477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UY24230A UY24230A1 (en) | 1995-06-09 | 1996-05-16 | POLYETHEREPHTHALATE OF ETHYLENE GLYCOL FOR APPLICATION IN MOLDED ARTICLES SUCH AS BOTTLES, CONTAINERS AND OTHERS WITH IMPROVED PROCESSABILITY, PROCESS FOR OBTAINING POLYTEREPHTHALATE OF ETHYLENE GLYCOL AND MOLDED ARTICLE |
Country Status (3)
| Country | Link |
|---|---|
| AR (1) | AR002133A1 (en) |
| BR (1) | BR9502212A (en) |
| UY (1) | UY24230A1 (en) |
-
1995
- 1995-06-09 BR BR9502212A patent/BR9502212A/en not_active Application Discontinuation
-
1996
- 1996-05-16 UY UY24230A patent/UY24230A1/en unknown
- 1996-05-29 AR ARP960102778A patent/AR002133A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR9502212A (en) | 1998-03-31 |
| AR002133A1 (en) | 1998-01-07 |
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