The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 1999
Filed:
Oct. 31, 1997
Andreas Winter, Glashutten, DE;
Roland Zenk, Bad Soden, DE;
Volker Fraaije, Frankfurt, DE;
Frank Kuber, Oberursel, DE;
Targor GmbH, Ludwigshafen, DE;
Abstract
The present invention relates to a metallocene of the formula I, ##STR1## for preparing polyolefins, where M.sup.1 is preferably Zr, Hf or Ti, R.sup.1 and R.sup.2 are each a hydrogen atom, a C.sub.1 -C.sub.3 -alkyl group, a C.sub.1 -C.sub.3 -alkoxy group, a C.sub.6 -C.sub.8 -aryl group, a C.sub.6 -C.sub.8 -aryloxy group, a C.sub.2 -C.sub.4 -alkenyl group, a C.sub.7 -C.sub.10 -arylalkyl group, a C.sub.7 -C.sub.12 -alkylaryl group, a C.sub.8 -C.sub.12 -arylalkenyl group or chlorine, R.sup.3 is a chlorine atom, a C.sub.1 -C.sub.3 -alkyl group, a C.sub.2 -C.sub.4 -alkenyl group, a C.sub.6 -C.sub.8 -aryl group, an NR.sup.16.sub.2, SR.sup.16, OSiR.sup.16.sub.3, SiR.sup.16.sub.3 or PR.sup.16.sub.2 radical where R.sup.16 is chlorine, a C.sub.1 -C.sub.4 -alkyl group or a C.sub.6 -C.sub.8 -aryl group. R.sup.4 is a hydrogen atom, R.sup.13 is --(R.sup.14 M.sup.2 R.sup.15)--, --(R.sup.14 CR.sup.15)--(R.sup.14 CR.sup.15)--, --(R.sup.14 CR.sup.15)--(R.sup.14 M.sup.2 R.sup.15)-- or --(R.sup.14 CR.sup.15)--, where R.sup.14 and R.sup.15 are each a hydrogen atom, chlorine, an Si(methyl).sub.3 group, an N(methyl).sub.2 group, an N(phenyl).sub.2 group, an Si(phenyl).sub.3 group, a B(methyl).sub.2 group, a B(phenyl).sub.2 group, a C.sub.1 -C.sub.4 -alkyl group, in particular a methyl group, a CF.sub.3 group, a C.sub.6 -C.sub.12 -aryl group, a pentafluorophenyl group, a C.sub.1 -C.sub.4 -alkoxy group, in particular a methoxy group, a C.sub.2 -C.sub.4 -alkenyl group, a C.sub.7 -C.sub.10 -arylalkyl group, a C.sub.8 -C.sub.12 -arylalkenyl group or a C.sub.7 -C.sub.12 -alkylaryl group, or R.sup.14 and R.sup.15 together with the atoms connecting them form a ring, M.sup.2 is silicon or germanium, z is 0 or 1, R.sup.x and R.sup.y are identical where R.sup.5 to R.sup.9 are as defined for R.sup.14, and l+m+n+o+p.gtoreq.2 and .ltoreq.5, and l+n+p is .gtoreq.1, where l, n, m, o or p can be 0, 1, 2 or 3 or R.sup.5 to R.sup.9 together with the atoms connecting them form one or more rings.