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:
Apr. 06, 1999
Filed:
Jul. 13, 1998
Applicant:
Inventors:
Carsten Suling, Frankenthal, DE;
Mario Huettenhofer, Constance, DE;
Hans-Herbert Brintzinger, Taegerswilen, CH;
Frank Schaper, Constance, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556 28 ; 556-7 ; 556 11 ; 556 12 ; 556 21 ; 556 43 ; 556 53 ; 556 87 ; 556 95 ; 502103 ; 502117 ; 502153 ; 526160 ; 526943 ;
Abstract
The present invention relates to a process for preparing racemic ansa-metallocene complexes I ##STR1## tin compounds II ##STR2## and a process for preparing tin compounds II. R.sup.1 to R.sup.9, M, and X are defined herein.