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:
Sep. 23, 1997
Filed:
Mar. 22, 1996
Applicant:
Inventors:
Franz Langhauser, Bad Durkheim, DE;
Jurgen Kerth, Carlsberg, DE;
Gunther Schweier, Friedelsheim, DE;
Hans-Herbert Brintzinger, Taegerswilen, CH;
Stefan Mansel, Konstanz, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ; C07F / ;
U.S. Cl.
CPC ...
556406 ; 556 11 ; 556 87 ; 556 95 ; 556409 ; 556430 ; 556431 ; 585360 ; 585375 ; 526943 ; 502152 ;
Abstract
Cyclopentadineyl compounds of the formula II ##STR1## and formula III ##STR2## their preparation and their use as intermediates in the preparation of metallocene complexes of the formula I.