AR037241A1 - Un copolimero de peso molecular ultra alto util como reductor de resistencia al flujo para hidrocarburos, metodos para su manufactura y para la preparacion de una suspension de un copolimero reductor de resistencia al flujo - Google Patents

Un copolimero de peso molecular ultra alto util como reductor de resistencia al flujo para hidrocarburos, metodos para su manufactura y para la preparacion de una suspension de un copolimero reductor de resistencia al flujo

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Publication number
AR037241A1
AR037241A1 ARP020103699A ARP020103699A AR037241A1 AR 037241 A1 AR037241 A1 AR 037241A1 AR P020103699 A ARP020103699 A AR P020103699A AR P020103699 A ARP020103699 A AR P020103699A AR 037241 A1 AR037241 A1 AR 037241A1
Authority
AR
Argentina
Prior art keywords
molecular weight
monomer
copolymer
flow resistance
high molecular
Prior art date
Application number
ARP020103699A
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English (en)
Original Assignee
Conoco Inc
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Publication date
Application filed by Conoco Inc filed Critical Conoco Inc
Publication of AR037241A1 publication Critical patent/AR037241A1/es

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  • Chemical & Material Sciences (AREA)
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Abstract

Un copolímero de peso molecular ultra alto útil como reductor de resistencia al flujo para hidrocarburos y método de fabricación de un copolímero reductor de resistencia al flujo. Más específicamente, un método para preparar polímeros de peso molecular ultra alto, solubles en hidrocarburos capaces de ser disueltos aún en fluidos fríos. Un método para la preparación de una suspensión de un copolímero reductor de resistencia de flujo. El copolímero de peso molecular ultra alto útil como reductor de resistencia al flujo para hidrocarburos comprende: a) un monómero de alfa- olefina que tiene una longitud de cadena carbonada entre 4 y 9 átomos de carbono; b) un primer co-monómero, el primer co-monómero tiene una longitud de cadena carbonada entre 2 y 20 átomos de carbono o comprende un monómero vinil-aromático, el primer co-monómero es diferente del monómero de alfa-olefina donde el copolímero de peso molecular ultra alto tiene un peso molecular mayor de 1 millón y el copolímero de peso molecular ultra alto comprende en su mayor parte ( contenido molar) monómeros que tienen entre 4 y 9 átomos de carbono y menos del 25% (contenido molar) de monómeros con longitud de cadena carbonada de 12 átomos de carbono o más larga, y además donde el copolímero de peso molecular ultra alto no tiene fracción reluctante cuando se determina por el ensayo de deformación por esfuerzo de corte en frío-filtrado en caliente. Un método para fabricar un copolímero de peso molecular ultra alto útil como reductor de resistencia al flujo, que comprende: a) polimerizar en masa, en ausencia de un solvente, una mezcla de un monómero de alfa-alefina que tiene una longitud de cadena carbonada entre 4 y 9 átomos de carbono con un primer co-monómero, el primer co-monómero tiene una longitud de cadena carbonada entre 2 y 11 átomos de carbono o comprende un monómero vinil-arómatico, el primer co-monómero es diferente del monómero de alfa-olefina, y donde la mezcla comprende por lo menos 50% (contenido molar) de monómeros que tienen longitud de cadena carbonada entre 4 y 9 átomos de carbono, y donde la mezcla comprende no más de 25% (contenido molar) de monómeros con longitud de cadenas carbonadas de 12 átomos de carbono o más larga, y (b) formar el copolímero de peso molecular ultra alto donde dicho copolímero de peso molecular ultra alto tiene un peso molecular mayor a un millón.
ARP020103699A 2001-10-01 2002-09-30 Un copolimero de peso molecular ultra alto util como reductor de resistencia al flujo para hidrocarburos, metodos para su manufactura y para la preparacion de una suspension de un copolimero reductor de resistencia al flujo AR037241A1 (es)

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US (1) US6596832B2 (es)
EP (1) EP1434805A1 (es)
CN (1) CN1323091C (es)
AR (1) AR037241A1 (es)
BR (1) BR0213054A (es)
CA (1) CA2444015C (es)
CO (1) CO5580839A2 (es)
MX (1) MXPA04002986A (es)
RU (1) RU2303606C2 (es)
WO (1) WO2003029312A1 (es)

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US6946500B2 (en) * 2002-12-17 2005-09-20 Baker Hughes Incorporated Non-cryogenic process for grinding polyolefin drag reducing agents
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CA2444015C (en) 2008-07-29
WO2003029312A1 (en) 2003-04-10
MXPA04002986A (es) 2005-07-01
CN1323091C (zh) 2007-06-27
RU2303606C2 (ru) 2007-07-27
CA2444015A1 (en) 2003-04-10
US20030069330A1 (en) 2003-04-10
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