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    • 1. 发明授权
    • Long-chain dialkylmagnesium, its preparation process and applications
    • 长链二烷基镁,其制备方法和应用
    • US6063882A
    • 2000-05-16
    • US106120
    • 1998-06-29
    • Jean-Francois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • Jean-Francois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • C07C51/15C07F3/02C08F4/44C08F4/60C08F10/00C08F20/06C08F110/02C08F118/02C08F210/00C08F210/02C08F11/02
    • C07F3/02C07C51/15C08F10/00C08F110/02C08F210/02
    • This dialkylmagnesium is represented by the formula R--(CH.sub.2 --CH.sub.2).sub.n --Mg--(CH.sub.2 --CH.sub.2).sub.n' --R', (E--O--E').sub.x, where R and R' each independently represent a C.sub.1 -C.sub.20 hydrocarbon residue, branched or not, substituted or not, of the alkyl, cycloalkyl or aralkyl type; n and n', identical or substantially identical, represent an average number of --CH.sub.2 --CH.sub.2 -- linkages such that the average number of carbon atoms in each of the two chains borne by Mg is greater than 20; E and E', identical or different, each represent an alkyl radical, linear or cyclical, branched or not; and 0.ltoreq.x.ltoreq.2, x being the average value of the number of moles of E--O--E' ether complexed to the dialkylmagnesium. In order to prepare a dialkylmagnesium of this type, ethylene is polymerized in an anhydrous, de-oxygenated hydrocarbonaceous solution by means of a catalyst Cp*.sub.2 MCl.sub.2 Li(OEt.sub.2).sub.2 (Cp*=a pentamethylcyclopentadienyl ligand; M=scandium, yttrium or a metal of the lanthanide series; Et=ethyl), in the presence of a dialkylmagnesium, soluble in the solvent, of the formula R--Mg--R', (E--O--E').sub.x, where R, R', E, E' and x are as defined above, as a chain-transfer agent, and the reaction is stopped before the polydispersity of the polymer product obtained exceeds 2, preferably before it exeeds 1.5.
    • 该二烷基镁由式R-(CH 2 -CH 2)n-Mg-(CH 2 -CH 2)n'-R',(EO-E')x表示,其中R和R'各自独立地表示C1-C20烃 烷基,环烷基或芳烷基的残基,支链或非取代的; n和n'相同或基本上相同,表示-CH2-CH2-键的平均数,使得由Mg承载的两个链中的每个链中的平均碳原子数大于20; E和E'相同或不同,各自表示直链或环状,支链或不支链的烷基; 和0≤x≤2,x是与二烷基镁络合的E-O-E'醚的摩尔数的平均值。 为了制备这种二烷基镁,乙烯通过催化剂Cp * 2MCl2Li(OEt2)2(Cp * =五甲基环戊二烯基配体; M =钪,钇或金属)在无水,脱氧的含烃溶液中聚合 的镧系元素; Et =乙基),在可溶于溶剂的二烷基镁存在下,式R-Mg-R'(EO-E')x,其中R,R',E,E' 和x如上所定义,作为链转移剂,并且在获得的聚合物产物的多分散性超过2之前优选在其超过1.5之前停止反应。
    • 2. 发明授权
    • Long-chain dialkylmagnesium, its preparation process and applications
    • 长链二烷基镁,其制备方法和应用
    • US5779942A
    • 1998-07-14
    • US628373
    • 1996-04-05
    • Jean-Fran.cedilla.ois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • Jean-Fran.cedilla.ois PelletierKarel BujadouxXavier OlondeEmmanuel AdissonAndre MortreuxThomas Chenal
    • C07C51/15C07F3/02C08F4/44C08F4/60C08F10/00C08F20/06C08F110/02C08F118/02C08F210/00C08F210/02
    • C07F3/02C07C51/15C08F10/00C08F110/02C08F210/02
    • This dialkylmagnesium is represented by the formula R--(CH.sub.2 --CH.sub.2).sub.n --Mg--(CH.sub.2 --CH.sub.2).sub.n' --R', (E--O--E').sub.x, where R and R' each independently represent a C.sub.1 -C.sub.20 hydrocarbon residue, branched or not, substituted or not, of the alkyl, cycloalkyl or aralkyl type; n and n', identical or substantially identical, represent an average number of --CH.sub.2 --CH.sub.2 -- linkages such that the average number of carbon atoms in each of the two chains borne by Mg is greater than 20; E and E', identical or different, each represent an alkyl radical, linear or cyclical, branched or not; and 0.ltoreq.x.ltoreq.2, x being the average value of the number of moles of E--O--E' ether complexed to the dialkylmagnesium. In order to prepare a dialkylmagnesium of this type, ethylene is polymerized in an anhydrous, de-oxygenated hydrocarbonaceous solution by means of a catalyst Cp*.sub.2 MCl.sub.2 Li(OEt.sub.2).sub.2 (Cp*=a pentamethylcyclopentadienyl ligand; M=scandium, yttrium or a metal of the lanthanide series; Et=ethyl), in the presence of a dialkylmagnesium, soluble in the solvent, of the formula R--Mg--R', (E--O--E').sub.x, where R, R', E, E' and x are as defined above, as a chain-transfer agent, and the reaction is stopped before the polydispersity of the polymer product obtained exceeds 2, and preferably before it exceeds 1.5.
    • 该二烷基镁由式R-(CH 2 -CH 2)n-Mg-(CH 2 -CH 2)n'-R',(EO-E')x表示,其中R和R'各自独立地表示C1-C20烃 烷基,环烷基或芳烷基的残基,支链或非取代的; n和n'相同或基本上相同,表示-CH2-CH2-键的平均数,使得由Mg承载的两个链中的每个链中的平均碳原子数大于20; E和E'相同或不同,各自表示直链或环状,支链或不支链的烷基; 和0≤x≤2,x是与二烷基镁络合的E-O-E'醚的摩尔数的平均值。 为了制备这种二烷基镁,乙烯通过催化剂Cp * 2MCl2Li(OEt2)2(Cp * =五甲基环戊二烯基配体; M =钪,钇或金属)在无水,脱氧的含烃溶液中聚合 的镧系元素; Et =乙基),在可溶于溶剂的二烷基镁存在下,式R-Mg-R'(EO-E')x,其中R,R',E,E' 和x如上所定义,作为链转移剂,并且在获得的聚合物产物的多分散性超过2,优选超过1.5之前停止反应。
    • 3. 发明授权
    • Catalysts and process for the preparation of catalysts which may be used
for the polymerization of ethylene
    • 用于制备可用于乙烯聚合的催化剂的催化剂和方法
    • US5492983A
    • 1996-02-20
    • US244679
    • 1994-06-07
    • Xavier OlondeKarel BujadouxAndre MortreuxFrancis Petit, deceased
    • Xavier OlondeKarel BujadouxAndre MortreuxFrancis Petit, deceased
    • C08F4/42C08F4/54C08F4/62C08F10/00C08F10/02C08F4/14
    • C08F10/02Y02P20/544
    • This catalyst consists of the reaction product, with at least one organomagnesium compound and/or organolithium compound R.sup.1 Li (R.sup.1 =alkyl) or ArLi (Ar=phenyl or benzyl), of the reaction product of (Cp).sub.2 MX.sub.2 Li(OR.sub.2).sub.2 (M=lanthanide, Sc, Y; (Cp)=optionally substituted cyclopentadienyl; and R=alkyl), with at least one bidentate ligand, such as .beta.-diketone or .beta.-keto imine CZ.sub.3 COCHZCDCZ.sub.3, Z selected from halogen, alkyl and H, D=O, NH or NR.sup.3 (R.sup.3 =alkyl or aryl); and phosphorus ylid R.sup.2.sub.3 P.dbd.CA--CO--R.sup.2, R.sup.2 chosen from alkyl and aryl; A=alkyl or H. It advantageously takes the form of a solution at least partially containing an aromatic hydrocarbon. The process for the polymerization of ethylene may be carried out at 20.degree.-250.degree. C. at a pressure which may range up to approximately 200 bars, in solution or in suspension in an at least C.sub.6 inert hydrocarbon or may be carried out continuously, in at least one autoclave or tubular reactor, at 150.degree.-300.degree. C., at 400-2000 bars, the reaction medium being in the supercritical state.
    • PCT No.PCT / FR93 / 00996 Sec。 371日期:1994年6月7日 102(e)日期1994年6月7日PCT提交1993年10月8日PCT公布。 第WO94 / 09044号公报 该催化剂由(Cp)的反应产物与至少一种有机镁化合物和/或有机锂化合物R1Li(R1 =烷基)或ArLi(Ar =苯基或苄基)组成, 具有至少一个二齿配位体,例如β-二酮或β-酮亚胺CZ 3 COCHZCDCZ 3,Z选自:(2)M 2镧(OR 2)2(M =镧系元素,Sc,Y;(Cp)=任选取代的环戊二烯基; R = 卤素,烷基和H,D = O,NH或NR 3(R 3 =烷基或芳基); 和磷叶立德R23P = CA-CO-R2,R2选自烷基和芳基; A =烷基或H.它有利地是至少部分含有芳族烃的溶液的形式。 乙烯聚合的方法可以在20-250℃下进行,压力范围可达200​​巴,溶液中或在至少C6惰性烃中的悬浮液中,或连续进行, 在至少一个高压釜或管式反应器中,在150-300℃,400-2000巴条件下,反应介质处于超临界状态。