ETHYLENE/α-OLEFINS BLOCK INTERPOLYMERS

• Main Authors: KUHLMAN ROGER LEWIS, QIU XIAOHUA, TAHA ANGELA N, HAZLITT LONNIE G, HUSTAD PHILLIP DENE, LI PI SHAN COLIN, POON BENJAMIN C, CARNAHAN EDMUND M, CHEUNG YUNWA WILSON
• Format: Patent
• Language: English; Korean
• Published: 27.06.2013
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

Embodiments of the invention provide a class of ethylene/a-olefÊn block interpolymers. The ethylene/a-olefÊn interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block ethylene/a-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation ("TREF"), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the ethylene/a-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.3.