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:
Aug. 04, 2026
Filed:
Apr. 02, 2021
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Sambhaji Nanasaheb Chougule, Baroda, IN;
Anamitra Chatterjee, Geleen, NL;
Jaiprakash Brijlal Sainani, Vadodara, IN;
Sivalingam Gunasekaran, Geleen, NL;
Bharatkumar Ravjibhai Paghadar, Geleen, NL;
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Abstract
The invention relates to a process for preparing a boronic anhydride compound of formula (1), wherein, R-Rare substituents as defined in the disclosure and 'B' stands for the element boron. The invention also describes a process of using the boronic anhydride of formula (1), to prepare a biphenyl metallocene complex of formula (4), wherein, Rto R, are substituents as defined in the disclosure; and wherein ‘M’ is a transition metal element, ‘Q’ is an halide anion, and ‘P’ is the valency of the transition metal element ‘M’ and indicates the number of halide anion present. In addition, the invention further describes a process of purifying the metallocene complex of formula (4) so as to render the overall metallocene complex synthesis process environmentally sustainable as well as cost effective by minimizing waste effluents.