会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Polymerization catalyst containing polymeric diene-aluminum compounds
    • 含聚合二烯 - 铝化合物的聚合催化剂
    • US3180837A
    • 1965-04-27
    • US23937762
    • 1962-11-21
    • DU PONT
    • BRUCE JR JOHN MACMILLANMAXWELL ROBINSON IVAN
    • B60L15/34C07F5/06C08F10/00C08F36/00
    • C08F10/00B60L15/34C07F5/063C08F36/00C08F4/602C08F4/6292
    • Unsaturated aluminium-containing polymers containing on average 8 to 20 aluminium atoms per molecule and having the formula where R represents alkyl or alkenyl groups, X represents an alkylene group, Y represents an alkyl or alkenyl group or an p alkylene group attached to a monovalent aluminium hydrocarbon radical and n is at least 4, may be prepared by reacting an aluminium trialkyl with isoprene in an inert atmosphere until at least two-thirds but not all of the alkyl groups are displaced by isoprene and heating the reaction product in an inert atmosphere until at least 80% but not all of the isoprene is saturated. The preferred aluminium trialkyl is aluminium triisobutyl. The products may be employed with metal halides in the formation of olefin polymerization catalysts, e.g. for the polymerization of ethylene, propylene and butene-1. Specified metal halides are titanium tetrachloride, titanium trichloride, titanium tetrabromide, zirconium tetrachloride, zirconium tetrabromide, vanadium tetrachloride, vanadium trichloride and vanadium oxytrichloride. The catalysts are preferably heated, e.g. to 100 DEG to 300 DEG C., prior to or during use. Polymerization is preferably effected in the presence of an inert hydrocarbon solvent such as heptane, cyclohexane, benzene and toluene. Examples describe the preparation of an aluminium polymer by heating aluminium triisobutyl and isoprene in decahydronaphthalene in the presence of nickel acetyl acetonate and the use thereof with (I) titanium tetrachloride in the polymerization of ethylene and (II) titanium trichloride, prepared by the reduction of titanium tetrachloride with aluminium triisobutyl, in the polymerization of propylene.
    • 4. 发明申请
    • CHROMIUM CATALYSTS ACTIVE IN OLEFIN POLYMERIZATION
    • 在烯烃聚合中活化的铬催化剂
    • US20080021180A1
    • 2008-01-24
    • US11842323
    • 2007-08-21
    • Luis LlatasEncarna GilJose RoyoMiguel RodrigoAna De LamaMontserrat EscoEnrique Rodriguez
    • Luis LlatasEncarna GilJose RoyoMiguel RodrigoAna De LamaMontserrat EscoEnrique Rodriguez
    • C08F4/06
    • C08F10/02C07F11/005C08F4/63904C08F4/63912C08F4/63916C08F4/63927C08F4/65927C08F10/00C08F110/02C08F210/16C08F4/6292C08F2500/03C08F2500/23C08F2500/02C08F2500/20C08F210/14C08F4/69224
    • The present invention relates to chromium(III) complexes defined by following formula: wherein: each R1 is independently selected from hydrogen, C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl, C2-C20 alkenyl, optionally comprising 1 to 5 heteroatoms such as Si, N, P, O, F, Cl, B; each R2 is independently selected from hydrogen, C1-C20 alkyl, C3-C20 cycloalkyl, silyl, C6-C20 aryl, C2-C20 alkenyl, optionally comprising 1 to 5 heteroatoms such as Si, N, P, O, F, Cl, B; R1 and R2 can join together forming one or more aromatic or aliphatic rings optionally containing heteroatoms; each A is independently selected from nitrogen, phosphorous, As, Sb; each E is independently selected from carbon, phosphorus, nitrogen; Z is a group comprising at least a nitrogen, phosphorous, oxygen or sulfur atom which is able to coordinate to the chromium atom; Z can join one or more R2 groups to form one or more rings; each p is independently 1 or 2; each n is independently 0, 1 or 2; each X is independently an atom or group covalently or ionically attached to the chromium atom. This invention further relates to olefin polymerization catalysts obtainable by treating a chromium complex with an organoaluminium compound. The catalyst preparation and its use in polymerization are described.
    • 本发明涉及由下式定义的铬(III)络合物:其中:每个R 1独立地选自氢,C 1 -C 20, C 1 -C 6烷基,C 3 -C 20环烷基,C 6 -C 20芳基,C 1 -C 20烷基, 任选地包含1至5个杂原子,例如Si,N,P,O,F,Cl,B; 每个R 2独立地选自氢,C 1 -C 20烷基,C 3 -C 20亚烷基,C 3 -C 20 > 20个环烷基,甲硅烷基,C 6 -C 20芳基,C 2 -C 20芳基,C 1 -C 20烷基, 烯基,任选地包含1至5个杂原子,例如Si,N,P,O,F,Cl,B; R 1和R 2可以连接在一起形成一个或多个任选地含有杂原子的芳族或脂族环; 每个A独立地选自氮,磷,As,Sb; 每个E独立地选自碳,磷,氮; Z是至少包含能与铬原子配位的氮,磷,氧或硫原子的基团; Z可以连接一个或多个R 2 2个基团以形成一个或多个环; 每个p独立地为1或2; 每个n独立地为0,1或2; 每个X独立地是与铬原子共价或离子键连接的原子或基团。 本发明还涉及通过用有机铝化合物处理铬络合物而获得的烯烃聚合催化剂。 描述了催化剂制备及其在聚合中的用途。