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:
May. 29, 2001
Filed:
Feb. 17, 1999
Applicant:
Inventors:
Carleton E. Stouffer, Bartlesville, OK (US);
Syriac J. Palackal, Bartlesville, OK (US);
Gary L. Glass, Dewey, OK (US);
M. Bruce Welch, Bartlesville, OK (US);
John D. Hottovy, Bartlesville, OK (US);
Michael D. Jensen, Bartlesville, OK (US);
Assignee:
Phillips Petroleum Company, Bartlesville, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 1/700 ; C07F 7/00 ;
U.S. Cl.
CPC ...
C07F 1/700 ; C07F 7/00 ;
Abstract
A number of process steps are provided that can be combined to produce bridged cyclopentadienyl-fluorenyl metallocenes. The process steps include production of a cyclopentadiene compound from dicyclopentadiene; production and recovery of a fulvene compound using the cyclopentadiene compound; production of a raw metallocene product using the fulvene compound; and recovery of the pure metallocene from the raw product.