ETHYLENE-BASED POLYMERS AND ARTICLES MADE THEREFROM

• Main Authors: BERG, BRIAN, R, BEST, STEVEN, A
• Format: Patent
• Language: English; French
• Published: 24.07.2014
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING-UP

Ethylene-based copolymers having unusual viscosity performance are described, particularly ethylene-based polymers having about 80.0 to 99.0 wt.% of polymer units derived from ethylene and about 1.0 to about 20.0 wt.% of polymer units derived from one or more C3 to C20 α-olefin comonomers; the ethylene-based polymer having a local maximum loss angle at a complex modulus, G*, of 2.50x104 to 1.00x106 Pa and a local minimum loss angle at a complex modulus, G*, of 1.00X104 to 3.00*x104 Pa. The invention also includes articles, such as films, produced from such polymers and methods of making such articles. L'invention concerne des copolymères à base d'éthylène ayant une propriété de viscosité inhabituelle, en particulier des polymères à base d'éthylène ayant environ 80,0 à 99,0 % en poids de motifs polymères issus d'éthylène et environ 1,0 à environ 20,0 % en poids de motifs polymères issus d'un ou de plusieurs co-monomères d'α-oléfine en C3 à C20 ;le polymère à base d'éthylène ayant un angle de perte maximal, local, à un module complexe, G*, de 2,50 x 104 à 1,00 x 106 Pa et un angle de perte minimal, local, à un module complexe, G*, de 1,00 x 104 à 3,00* x 104 Pa. L'invention concerne également des articles, tels que des films, produits à partir de tels polymères et des procédés de fabrication de tels articles.