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:
Dec. 12, 1995
Filed:
Feb. 22, 1995
Applicant:
Inventor:
Richard Lisowsky, Kamen, DE;
Assignee:
Witco GmbH, Bergkamen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07F / ; C07C / ;
U.S. Cl.
CPC ...
2606 / ; 556413 ; 556445 ; 556447 ; 556465 ; 556466 ; 556487 ; 556 95 ; 556 96 ; 556404 ; 556 11 ; 556 12 ; 556-9 ; 556 14 ; 556 19 ; 556 21 ; 556 28 ; 556 51 ; 556 52 ; 556 53 ; 556138 ; 556140 ; 556142 ; 534 15 ; 568-8 ; 568-9 ; 568584 ; 568630 ; 568631 ; 568664 ; 564305 ; 564306 ; 564307 ; 564457 ;
Abstract
Disclosed are processes for the preparation of new bridged cyclopentadienylmagnesium compounds of the general formula Q(CpR.sub.a)(Cp'R'.sub.a ')Mg, and the use thereof for preparing bridged metallocenes.