AR002133A1 - ETHYLENE GLYCOL POLYTHEREFTALALATE FOR APPLICATION IN MOLDED ITEMS SUCH AS BOTTLES, CONTAINERS AND OTHERS WITH IMPROVED MANUFACTURING CAPABILITY, PROCEDURE FOR OBTAINING ETHYLENGLYCYL POLYTHEREFTALATE AND MOLDED ITEM - Google Patents
ETHYLENE GLYCOL POLYTHEREFTALALATE FOR APPLICATION IN MOLDED ITEMS SUCH AS BOTTLES, CONTAINERS AND OTHERS WITH IMPROVED MANUFACTURING CAPABILITY, PROCEDURE FOR OBTAINING ETHYLENGLYCYL POLYTHEREFTALATE AND MOLDED ITEMInfo
- Publication number
- AR002133A1 AR002133A1 ARP960102778A AR10277896A AR002133A1 AR 002133 A1 AR002133 A1 AR 002133A1 AR P960102778 A ARP960102778 A AR P960102778A AR 10277896 A AR10277896 A AR 10277896A AR 002133 A1 AR002133 A1 AR 002133A1
- Authority
- AR
- Argentina
- Prior art keywords
- ethylene glycol
- molded
- polythereftalate
- polythereftalalate
- ethylenglycyl
- Prior art date
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
Abstract
Politereftalato de polietilenglicol que posee un grado de cristalización menor que el 52%, una viscosidad intrínseca entre 0,65 y 0,95 dl/g,comprendiendo el 91 al 98,5% de unidades de tereftalato de etileno y 1,5 al 9% mol de unidades de un comonómero de por lo menos un ácido polibásico y/o unalcohol polihidroxílico,retardantes de la cristalización, siendo el tenor total de metales procedentes de uno o más catalizadores de policondensación variableentre 150 y 400 ppm, teniendo menos del 5% mol por mol de unidades repetitivas de di- y/o trietilenglicol presentes en la cadena de polímero. La invencióntambién incluye un procedimiento para la preparación de dicho politereftalato que comprende la esterificación o transesterificación del ácido tereftálico osu éster derivado con etilenglicol hasta una viscosidad intrínseca de 0,55 a 0,70 dl/g en presencia de por lo menos un comonómero retardante de lacristalización y una etapa de post condensación sólida hasta alcanzarse viscosidad intrínseca entre 0,65 y 0,95 dl/g. También se describe un artículomoldeado con dicho politereftalato de etilenglicol.Polyethylene glycol polyterephthalate that has a degree of crystallization less than 52%, an intrinsic viscosity between 0.65 and 0.95 dl / g, comprising 91 to 98.5% units of ethylene terephthalate and 1.5 to 9 % mole of units of a comonomer of at least one polybasic acid and / or polyhydroxy alcohol, which retard crystallization, the total content of metals being from one or more polycondensation catalysts variable between 150 and 400 ppm, having less than 5% mole per mole of repeating units of di- and / or triethylene glycol present in the polymer chain. The invention also includes a process for the preparation of said polyterephthalate comprising the esterification or transesterification of terephthalic acid or its ester derived with ethylene glycol to an intrinsic viscosity of 0.55 to 0.70 dl / g in the presence of at least one retardant comonomer of lacrystallization and a solid post condensation step until intrinsic viscosity is reached between 0.65 and 0.95 dl / g. An article molded with such ethylene glycol polyterephthalate is also described.
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 |
|---|---|
| AR002133A1 true AR002133A1 (en) | 1998-01-07 |
Family
ID=4061477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP960102778A AR002133A1 (en) | 1995-06-09 | 1996-05-29 | ETHYLENE GLYCOL POLYTHEREFTALALATE FOR APPLICATION IN MOLDED ITEMS SUCH AS BOTTLES, CONTAINERS AND OTHERS WITH IMPROVED MANUFACTURING CAPABILITY, PROCEDURE FOR OBTAINING ETHYLENGLYCYL POLYTHEREFTALATE AND MOLDED ITEM |
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 |
|---|---|
| UY24230A1 (en) | 1996-11-08 |
| BR9502212A (en) | 1998-03-31 |
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