Catalyst composition comprising shuttling agent for higher olefin multi-block copolymer formation

Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, are prepared by polymerizing propylene, 4-methyl- 1-pentene, or other C 4-8 ±-olefin and one or more copolymerizable comonomers, especially ethylene in the pre...

Full description

Saved in:
Bibliographic Details
Main Authors DANIEL J. ARRIOLA, EDMUND M. CARNAHAN, ROGER L. KUHLMAN, DAVID D. DEVORE, PHILLIP D. HUSTAD, TIMOTHY T. WENZEL
Format Patent
LanguageEnglish
Published 19.08.2010
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
Online AccessGet full text

Cover

More Information
Summary:Copolymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, are prepared by polymerizing propylene, 4-methyl- 1-pentene, or other C 4-8 ±-olefin and one or more copolymerizable comonomers, especially ethylene in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.
Bibliography:Application Number: AU20050224257