POLYMER RESINS WITH IMPROVED PROCESSABILITY AND MELT FRACTURE CHARACTERISTICS
A metallocene-catalyzed polymer comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5x10 5 Pa.s to about 2x10 14 Pa.s and a smooth-to-matte tra...
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16.02.2021
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Abstract | A metallocene-catalyzed polymer comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5x10 5 Pa.s to about 2x10 14 Pa.s and a smooth-to-matte transition critical stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1.5 s-1 to about 17 s-1. A dual metallocene catalyzed polyethylene comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5x10 5 Pa.s to about 2x10 14 Pa.s and a smooth-to-matte transition stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1. 5 s-1 to about 17 s-1.
L'invention concerne un polymère catalysé par des métallocènes comprenant (i) un composant de poids moléculaire supérieur et (ii) un composant de poids moléculaire inférieur, le polymère présente un indice de polydispersité compris entre environ 10 et environ 26; un coefficient de viscosité de cisaillement d'environ 5x105 Pa.s à environ 2x1014 Pa.s et une contrainte critique de transition de lisse à mat d'environ 20 kPa à environ 85 kPa à une vitesse de cisaillement d'environ 1,5 s-1 à environ 17 s-1. L'invention concerne un polyéthylène catalysé par un métallocène double comprenant (i) un composant de poids moléculaire supérieur et (ii) un composant de poids moléculaire inférieur, le polymère présentant un indice de polydispersité compris entre environ 10 et environ 26; un coefficient de viscosité de cisaillement d'environ 5x105 Pa.s à environ 2x1014 Pa.s et une contrainte critique de transition de lisse à mat d'environ 20 kPa à environ 85 kPa à une vitesse de cisaillement d'environ 1. |
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AbstractList | A metallocene-catalyzed polymer comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5x10 5 Pa.s to about 2x10 14 Pa.s and a smooth-to-matte transition critical stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1.5 s-1 to about 17 s-1. A dual metallocene catalyzed polyethylene comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a polydispersity index of from about 10 to about 26; a zero shear viscosity of from about 5x10 5 Pa.s to about 2x10 14 Pa.s and a smooth-to-matte transition stress of from about 20 kPa to about 85 kPa at a shear rate of from about 1. 5 s-1 to about 17 s-1.
L'invention concerne un polymère catalysé par des métallocènes comprenant (i) un composant de poids moléculaire supérieur et (ii) un composant de poids moléculaire inférieur, le polymère présente un indice de polydispersité compris entre environ 10 et environ 26; un coefficient de viscosité de cisaillement d'environ 5x105 Pa.s à environ 2x1014 Pa.s et une contrainte critique de transition de lisse à mat d'environ 20 kPa à environ 85 kPa à une vitesse de cisaillement d'environ 1,5 s-1 à environ 17 s-1. L'invention concerne un polyéthylène catalysé par un métallocène double comprenant (i) un composant de poids moléculaire supérieur et (ii) un composant de poids moléculaire inférieur, le polymère présentant un indice de polydispersité compris entre environ 10 et environ 26; un coefficient de viscosité de cisaillement d'environ 5x105 Pa.s à environ 2x1014 Pa.s et une contrainte critique de transition de lisse à mat d'environ 20 kPa à environ 85 kPa à une vitesse de cisaillement d'environ 1. |
Author | YANG, QING INN, YONGWOO |
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Snippet | A metallocene-catalyzed polymer comprising (i) a higher molecular weight component and (ii) a lower molecular weight component wherein the polymer has a... |
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Title | POLYMER RESINS WITH IMPROVED PROCESSABILITY AND MELT FRACTURE CHARACTERISTICS |
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