Organometallic compound
    31.
    发明授权
    Organometallic compound 失效
    有机金属化合物

    公开(公告)号:US5840947A

    公开(公告)日:1998-11-24

    申请号:US648820

    申请日:1996-05-16

    摘要: The present invention relates to a metallocene compound of the formula I R.sup.5.sub.n Cp.sup.1 Cp.sup.2 M.sup.1 R.sup.1 R.sup.2 (I) where Cp.sup.1 and Cp.sup.2 are, independently of one another, identical or different and are each an unsubstituted or substituted cyclopentadienyl group, n=zero or 1, R.sup.5 is a bridge, M.sup.1 is a metal of group IVb, Vb or VIb of the Periodic Table of the Elements, R.sup.1 and R.sup.2 are identical or different and are each a hydrogen atom or a C.sub.1 -C.sub.40 -group, wherein at least one of the two groups Cp.sup.1 and Cp.sup.2 is a substituted cyclopentadienyl group which bears at least one cyclic C.sub.3 -C.sub.30 -group containing at least one heteroatom in the ring, or which bears a fused-on C.sub.2 -C.sub.30 ring system containing at least one heteroatom in the ring. The metallocene compound can be used as a catalyst component for olefin polymerization.

    摘要翻译: 本发明涉及式I的茂金属化合物,其中,Cp1和Cp2彼此独立地相同或不同,并且各自为未取代或取代的环戊二烯基,n = 0或1,R 5为桥 ,M1是元素周期表IVb,Vb或VIb族的金属,R1和R2相同或不同,分别为氢原子或C1-C40-基团,其中两个基团Cp1 并且Cp2是带有至少一个在环中含有至少一个杂原子的环C 3 -C 30基团的取代的环戊二烯基,或者在环中含有至少一个杂原子的稠合的C 2 -C 30环体系。 茂金属化合物可用作烯烃聚合的催化剂组分。

    Polyolefin molding composition for producing fibers, filaments and webs
by melt spinning
    35.
    发明授权
    Polyolefin molding composition for producing fibers, filaments and webs by melt spinning 失效
    用于通过熔融纺丝生产纤维,长丝和网的聚烯烃模塑组合物

    公开(公告)号:US5637666A

    公开(公告)日:1997-06-10

    申请号:US389811

    申请日:1995-02-10

    摘要: Polyolefin molding composition comprising a polyolefin formed from an olefin having at least 3 carbon atoms of the formula R.sup.a --CH.dbd.CH--R.sup.b, where R.sup.a and R.sup.b are identical or different and each is hydrogen or C.sub.1 -C.sub.15 -alkyl, straight-chain or branched, or R.sup.a and R.sup.b together with the atoms joining them together form a ring system, and from 0 to 10% by weight of ethylene or of a second olefin have the abovementioned meaning as comonomer, characterized by a 230/2.16 MFI from 5 to 1000 g/10 min, a 230/5 MFI from 15 to 3000 g/10 min, a molecular weight (M.sub.w) from 75,000 to 350,000 g/mol, a polydispersity (M.sub.w /M.sub.n) from 1.8 to 3.5, a viscosity number from 70 to 300 cm.sup.3 /g, a melting point from 120.degree. to 165.degree. C., an isotactic block length from 25 to 150, and ether extractables less than 2% by weight, based on the total weight of the polymer.

    摘要翻译: 聚烯烃成型组合物,其包含由具有至少3个具有式Ra-CH = CH-Rb的碳原子的烯烃形成的聚烯烃,其中Ra和Rb相同或不同,并且各自为氢或C 1 -C 15 - 烷基,直链或 支链或R a和R b与连接在一起的原子一起形成环系,并且0至10重量%的乙烯或第二烯烃具有上述含义作为共聚单体,其特征在于230 / 2.16MFI,从5至 1000g / 10min,230 / 5MFI,15-3000g / 10min,分子量(Mw)为75,000至350,000g / mol,多分散性(Mw / Mn)为1.8至3.5,粘度数 70至300cm 3 / g,熔点为120至165℃,全同立构嵌段长度为25至150,醚可提取物的重量小于聚合物的总重量的2%。