专利号:US-7271231-B2 优先权日:1995-01-24 标 题 :Polymerization of olefins 发明人:BROOKHART MAURICE S; JOHNSON LYNDA KAYE; KILLIAN CHRISTOPHER MOORE 权利人:DU PONT 摘要:Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc. Also described herein is the synthesis of linear α-olefins by the oligomerization of ethylene using as a catalyst system a combination a nickel compound having a selected α-diimine ligand and a selected Lewis or Bronsted acid, or by contacting selected α-diimine nickel complexes with ethylene.
专利号:US-4964846-A 优先权日:1986-05-16 标 题 :Process for the E/Z stereoselective synthesis of homochiral five and six ring intermediate products 发明人:GAIS HANS-JOACHIM; ERDELMEIER IRENE; BIRK ROLF 权利人:SCHERING AG 摘要:This invention comprises a process for the production of unsymmetrical olefins from prochiral symmetrical ketones by addition of lithiosulfoximine from n-butyllithium and N-substituted S-methyl-S-phenyl-sulfoximine derivatives and then reaction with n-butyllithium/trimethychlorosilane.
专利号:US-5629394-A 优先权日:1992-12-17 标 题 :Direct synthesis by living cationic polymerization of nitrogen-containing polymers 发明人:CHERADAME HERVE M; CHEN FRANK J; STANAT JON E R; NGUYEN HUNG A; TABAR BEHROOZ R 权利人:EXXON CHEMICAL PATENTS INC 摘要:A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultaneous manner. All necessary reactants for the functionalization are present when polymerization is initiated. The nitrogen-containing functional group is provided as a part of a molecule having a release moiety which is preferably resonance stabilized or a tertiary alkyl type and which acts to aid the nitrogen-containing species in functioning as a leaving group.
专利号:US-7605105-B2 优先权日:2005-02-01 标题:Transition metal polymerization catalysts, their synthesis and use in olefin polymerization 发明人:BAUGH LISA S; BERLUCHE ENOCK; HINKLE PAUL V; RIX FRANCIS C 权利人:EXXONMOBIL CHEM PATENTS INC 摘要:A transition metal ligand complex has the following formula: n nwherein R 1 and R 2 (each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R 3 and R 4 (each occurrence) independently represent an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms; R 5 represents an aryl, alkyl, or cycloalkyl group having up to 20 carbon atoms, provided that R 4 and R 5 may be joined to form a cyclic structure; R 6 represents an alkyl or aryl group having up to 20 carbon atoms; and Mt represents a transition metal selected from Group 7, 8, 9, 10, 11, or 12 of the Periodic Table of the Elements.
专利号:US-7132092-B2 优先权日:2002-02-08 标 题:Metallized mesoporous silicate and method of oxidation with the same 发明人:HAGIYA KOJI 权利人:SUMITOMO CHEMICAL CO 摘要:A metallized mesoporous silicate which is obtained by (i) reacting (a) either a metal peroxide obtained by the reaction of an aqueous hydrogen peroxide solution with at least one metal or metal compound selected from the group consisting of the following 1) to 4) 1) tungsten 2) molybdenum 3) vanadium 4) compounds comprising 4 a ) any of tungsten, molybdenum, and vanadium and 4 b ) at least one element selected from Groups 13 to 16 (excluding oxygen) or a solution of the metal peroxide with (b) a silicon compound in the presence of an alkylamine or a quaternary ammonium salt and separating the resultant silicate; and a process for producing the metallized mesoporous silicate. Also provided is a method of organic synthesis with the silicate.
专利号:RU-2081885-C1 优先权日:1994-10-11 标 题 :Method of synthesis of synthetic film-forming agent
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