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. 28, 2009
Filed:
Feb. 02, 2005
Bernard Spielvogel, Hubbards, CA;
Kevin Cook, Hammonds Plains, CA;
Bernard Spielvogel, Hubbards, CA;
Kevin Cook, Hammonds Plains, CA;
SemEquip Inc., N. Billerica, MA (US);
Abstract
The invention provides new methods for synthesis of BH, BH, BH, and BHsalts, particularly alkylammonium salts of BH, BH, BH, and BH. More particularly, the invention provides methods of preparing tetraalkylamronium salts of BH, BH, BH, and BHby pyrolysis of tetraalkylammonium borohydrides under controlled conditions. The invention additionally provides methods of preparing, in an atom efficient process, octadecaborane from the tetraalkylammonium salts of the invention. Preferred methods of the invention are suitable for preparation of isotopically enriched boranes, particularly isotopically enrichedBHandBH.