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    • 8. 发明授权
    • Process for the preparation of a magnesium halide supported metallocene
catalyst
    • 制备卤化镁负载金属茂催化剂的方法
    • US5962360A
    • 1999-10-05
    • US856191
    • 1997-05-14
    • Swaminathan SivaramSoumen Sensarma
    • Swaminathan SivaramSoumen Sensarma
    • B01J31/22C08F4/02C08F4/60C08F4/619C08F4/6192C08F4/654C08F10/00B01J31/00B01J37/00
    • B01J31/1616B01J31/2295B01J31/26C08F10/00B01J2531/30B01J2531/35B01J2531/40B01J2531/46B01J2531/48B01J2531/49B01J2531/50B01J2531/56B01J2531/60C08F4/61912C08F4/61925
    • The present invention is directed to a process for the preparation of a solid magnesium halide supported metallocene catalyst having a transition metal selected from the group consisting of IIIB, IVB, VB and VIB of the periodic table, which comprises preparing a slurry of magnesium metal in an electron donor solvent; heating the slurry of magnesium metal to 0.degree. C. to 50.degree. C. for a period of 10 minutes to 4 hr.; adding a dihaloalkane compound to said slurry to obtain a homogeneous solution of a support (solution A); separately preparing a solution of a metallocene compound in the same electron donor solvent as solution A (solution B); heating the solution B to 0.degree. C. to 50.degree. C. for a period ranging between 10 minutes and 1 hr., adding solution B to solution A over a period ranging between 10 minutes to 2 hrs. while maintaining the temperature in the range of 0 to 50.degree. C. to obtain a homogeneous solution; cooling the resultant homogeneous solution to room temperature under an inert atmosphere; pouring the reaction mixture into a liquid hydrocarbon medium in which all the components will be partly or completely insoluble to precipitate the solid catalyst; separating the solid catalyst precipitated, washing the solid catalyst with a hydrocarbon solvent; and drying the solid catalyst under vacuum at a temperature ranging between 0 to 50.degree. C.
    • 本发明涉及制备具有选自周期表的IIIB,IVB,VB和VIB的过渡金属的固体卤化镁载体金属茂催化剂的方法,其包括制备镁金属的浆料 电子给体溶剂; 将镁金属的浆料加热至0℃至50℃,持续10分钟至4小时。 向所述浆料中加入二卤代烷烃化合物以获得载体(溶液A)的均匀溶液; 在溶液A(溶液B)中分别制备茂金属化合物与相同电子给体溶剂的溶液; 将溶液B加热至0℃至50℃,持续10分钟至1小时,在溶液A中加入溶液A,时间为10分钟至2小时。 同时保持温度在0〜50℃的范围内,得到均匀溶液; 在惰性气氛下将所得均匀溶液冷却至室温; 将反应混合物倒入液体烃介质中,其中所有组分将部分或完全不溶解以沉淀固体催化剂; 分离固体催化剂沉淀,用烃溶剂洗涤固体催化剂; 并在0至50℃的温度下在真空下干燥固体催化剂。
    • 10. 发明授权
    • 1,3-oxazoline compounds useful as anionic initiators suitable for
polymerization of vinyl polymers
    • 可用作适合乙烯基聚合物聚合的阴离子引发剂的1,3-恶唑啉化合物
    • US5266702A
    • 1993-11-30
    • US585683
    • 1990-09-19
    • Durairaj BhaskaranPradeep K. DhalSanjay P. KashikarRatnaprabha S. KhistiBabanrao M. ShindeSwaminathan Sivaram
    • Durairaj BhaskaranPradeep K. DhalSanjay P. KashikarRatnaprabha S. KhistiBabanrao M. ShindeSwaminathan Sivaram
    • C07D263/32
    • C07D263/32
    • Disclosed are reactive anionic initiators of the general formula [ArCHR.sub.1 R.sub.2 N(R.sub.3 R.sub.4 R.sub.5 R.sub.6 ] wherein Ar=phenyl, substituted phenyl, or a heterocyclic compound, R.sub.1 =R.sub.2 =H, ester, cyano, alkyl, aryl, 1,3-oxazoline, N,N-dimethyl amide and other similar alpha activating groups, or combination of them, or one of R.sub.1 or R.sub.2 together with Ar, where Ar is a phenyl or substituted phenyl, is a nitrogen atom containing heterocyclic compound and the other being a nitrile group, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 may be same or different and represent substituted alkyl, cycloalkyl, arylalkyl or aryl or to of the R.sub.3, R.sub.4, R.sub.5 and R.sub.6 together with nitrogen atom form a heterocycle with the condition that the sum of all carbon atoms of all R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is from 12 to 50 and no more than one of the R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is an aryl derivative. The initiators which are in the form of solids or liquids are insoluble and can be incorporated which enable the synthesis of a wide range of polymers with functional groups. These initiators are useful for polymerizing very reactive vinyl monomers such as nitrile bearing vinyl compounds.
    • 公开了通式[ArCHR1R2N(R3R4R5R6)其中Ar =苯基,取代的苯基或杂环化合物,R1 = R2 = H,酯,氰基,烷基,芳基,1,3-恶唑啉,N,N 二甲基酰胺和其它类似的α活化基团,或它们的组合,或其中Ar为苯基或取代的苯基的R 1或R 2与Ar一起为氮原子的杂环化合物,另一个为腈基,R 3 ,R 4,R 5和R 6可以相同或不同,表示取代的烷基,环烷基,芳基烷基或芳基或R3,R4,R5和R6与氮原子一起形成杂环,条件是所有碳原子的总和 所有R 3,R 4,R 5和R 6为12至50,并且不超过一个R 3,R 4,R 5和R 6为芳基衍生物。固体或液体形式的引发剂是不溶的, 使得能够合成具有官能团的多种聚合物。这些引发剂a 可用于聚合非常活泼的乙烯基单体如腈基乙烯基化合物。