Abstract:
유기전하수송막을제조하는데유용한단일상 액체제형으로서; 상기제형은: (a) 5,000 미만의 M를갖는제1 폴리머수지; (b) 적어도 7,000의 M를갖는제2 폴리머수지; (c) 50 내지 165℃의비점을갖는제1 용매; 및 (d) 180 내지 300℃의비점을갖는제2 용매를포함한다.
Abstract:
PROBLEM TO BE SOLVED: To provide a combinatorial method and apparatus for the rapid and reliable discovery and development of a polymerization modifier-containing composition that is particularly adapted to use in olefin polymerizations.SOLUTION: This invention relates to a combinatorial method for identifying a catalyst composition for use in the homogeneous addition polymerization of olefin monomers, the catalyst composition comprising a transition metal compound, a cocatalyst and a polymerization modifier, as well as catalyst compositions and improved olefin polymerization processes resulting therefrom.
Abstract:
PROBLEM TO BE SOLVED: To provide a supported, heterogeneous catalyst composition for use in polymerization of addition polymerizable monomers to form high molecular weight polymers.SOLUTION: The supported, heterogeneous catalyst composition for use in polymerization of addition polymerizable monomers to form high molecular weight polymers, comprises: (1) a substrate comprising a solid, particulated, high surface area, surface modified, inorganic oxide compound; (2) a Group 4 metal complex of a bis(hydroxyarylaryloxy) ligand; and optionally (3) an activating cocatalyst for the metal complex.
Abstract:
PROBLEM TO BE SOLVED: To provide a process for copolymerization of ethylene and propylene to form a copolymer by contacting a mixture comprising ethylene and propylene under polymerization conditions with a catalyst composition comprising a metal complex, a cocatalyst, and a polymerization modifier.SOLUTION: The metal complex comprises a complex of hafnium and a pyridylamine. The cocatalyst comprises tris(pentafluorophenyl)boron or a trialkylammonium salt of tetrakis(pentafluorophenyl)borate. The polymerization modifier comprises the reaction product of a tri(Calkyl)aluminum with bis(trimethylsilyl)amine, 1-octanol, 1-dodecanol, phenol, 4-methyl-2,6-di(t-butyl)phenol, or t-butyldimethylsiloxane.
Abstract:
PROBLEM TO BE SOLVED: To provide a catalyst composition for use in forming a multi-block copolymer, the copolymer containing therein two or more segments or blocks differing in chemical or physical properties, and to provide a polymerization process using the same.SOLUTION: The composition comprises the admixture or reaction product resulting from combining: (A) a first olefin polymerization catalyst; (B) a second 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.
Abstract:
PROBLEM TO BE SOLVED: To provide: a composition for use in forming a multi-block copolymer produced in a continuous process without the need for sequential monomer addition, the copolymer containing two or more segments or blocks differing in chemical or physical properties; and a polymerization process using the same.SOLUTION: Provided are: an admixture or reaction product resulting from combining (A) a first olefin polymerization catalyst, (B) a second olefin polymerization catalyst capable of preparing polymers differing in chemical or physical properties from the polymer prepared by the catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent; and a polymerization process using the same.
Abstract:
PROBLEM TO BE SOLVED: To provide a polymerization process and the like that is capable of preparing copolymers having unique properties in a high-yield process adapted for commercial utilization.SOLUTION: This invention relates to a polymerization process and the resulting polymer composition, the process comprising a step of polymerizing one or more addition polymerizable monomers and a polymerizable shuttling agent in the presence of at least one addition polymerization catalyst comprising a metal compound or complex and a cocatalyst under conditions characterized by the formation of a branched polymer, preferably comprising pseudo-block molecular architecture.