UY24236A1 - POLYETEREPHTHALATE OF ETHYLENE GLYCOL HOMO OR COPOLYMER FOR APPLICATION IN MOLDED ARTICLES, SUCH AS BOTTLES, PACKAGING AND OTHERS WITH IMPROVED DECOMPOSITION, TRANSPARENCY AND BRIGHTNESS CHARACTERISTICS, AND PROCESS FOR OBTAINING POLYTEREPHTHYL ETHYLETHYLATE - Google Patents
POLYETEREPHTHALATE OF ETHYLENE GLYCOL HOMO OR COPOLYMER FOR APPLICATION IN MOLDED ARTICLES, SUCH AS BOTTLES, PACKAGING AND OTHERS WITH IMPROVED DECOMPOSITION, TRANSPARENCY AND BRIGHTNESS CHARACTERISTICS, AND PROCESS FOR OBTAINING POLYTEREPHTHYL ETHYLETHYLATEInfo
- Publication number
- UY24236A1 UY24236A1 UY24236A UY24236A UY24236A1 UY 24236 A1 UY24236 A1 UY 24236A1 UY 24236 A UY24236 A UY 24236A UY 24236 A UY24236 A UY 24236A UY 24236 A1 UY24236 A1 UY 24236A1
- Authority
- UY
- Uruguay
- Prior art keywords
- bottles
- transparency
- packaging
- ethylene glycol
- molded articles
- Prior art date
Links
Abstract
La presente invención trata de un producto y proceso con base en poliéster saturado termoplástico, especificamente politereftalato de etileno glicol (PET) con características de procesabilidad mejoradas, para obtención de artículos moldeados con base en éste, por ejemplo, botellas, embalajes, películas, etc. El poliéster es formado de ácido tereftálico o su éster derivado y etileno glicol, que sufren esterificación directa o transesterificación hasta una viscosidad intrínseca entre 0,55 hasta 0,70 dl/g en presencia de un sistema catalítico con base en antimonio, germanio, cobalto, fósforo, y opcionalmente monómeros retardantes de cristalización a temperatura abajo de 310ºC, pasando entonces para una post-condensación sólida, a temperatura variando entre 190 y 230ºC por un intervalo de tiempo de 5 hasta 25 horas aproximadamente. El politereftalato de etileno glicol posee descomposición, color, transparencia y brillo mejorados, teniendo como ventaja adicional una ganacia importante en la velocidad de policondensación.The present invention deals with a product and process based on thermoplastic saturated polyester, specifically polyethylene glycol terephthalate (PET) with improved processability characteristics, to obtain molded articles based on it, for example, bottles, packaging, films, etc. . Polyester is formed of terephthalic acid or its derived ester and ethylene glycol, which undergo direct esterification or transesterification to an intrinsic viscosity between 0.55 to 0.70 dl / g in the presence of a catalytic system based on antimony, germanium, cobalt. , phosphorus, and optionally crystallization retarding monomers at a temperature below 310 ° C, then going through a solid post-condensation, at a temperature varying between 190 and 230 ° C for a time interval of 5 to 25 hours approximately. Polyethylene glycol terephthalate has improved decomposition, color, transparency and gloss, having as an additional advantage an important gain in the polycondensation speed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9502400A BR9502400A (en) | 1995-07-25 | 1995-07-25 | Homo ethylene glycol polyterephthalate or copolymer for application in molded articles such as packaging bottles and others with degradability characteristics, improved transparency and gloss color and process for obtaining ethylene glycol polyterephthalate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UY24236A1 true UY24236A1 (en) | 1996-11-08 |
Family
ID=4061607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| UY24236A UY24236A1 (en) | 1995-07-25 | 1996-05-21 | POLYETEREPHTHALATE OF ETHYLENE GLYCOL HOMO OR COPOLYMER FOR APPLICATION IN MOLDED ARTICLES, SUCH AS BOTTLES, PACKAGING AND OTHERS WITH IMPROVED DECOMPOSITION, TRANSPARENCY AND BRIGHTNESS CHARACTERISTICS, AND PROCESS FOR OBTAINING POLYTEREPHTHYL ETHYLETHYLATE |
Country Status (5)
| Country | Link |
|---|---|
| AR (1) | AR002207A1 (en) |
| BR (1) | BR9502400A (en) |
| CO (1) | CO4560467A1 (en) |
| PE (1) | PE6897A1 (en) |
| UY (1) | UY24236A1 (en) |
-
1995
- 1995-07-25 BR BR9502400A patent/BR9502400A/en not_active Application Discontinuation
-
1996
- 1996-05-21 UY UY24236A patent/UY24236A1/en unknown
- 1996-05-21 PE PE00035796A patent/PE6897A1/en not_active Application Discontinuation
- 1996-06-04 AR ARP960102887A patent/AR002207A1/en unknown
- 1996-07-12 CO CO96036800A patent/CO4560467A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CO4560467A1 (en) | 1998-02-10 |
| AR002207A1 (en) | 1998-01-07 |
| BR9502400A (en) | 1997-08-26 |
| PE6897A1 (en) | 1997-03-20 |
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