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:
Jun. 08, 2010
Filed:
Dec. 21, 2007
Applicants:
Donald Edward Putzig, Newark, DE (US);
Peter Jernakoff, Wilmington, DE (US);
Inventors:
Donald Edward Putzig, Newark, DE (US);
Peter Jernakoff, Wilmington, DE (US);
Assignee:
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B 35/04 (2006.01); C01G 23/00 (2006.01); C01G 25/00 (2006.01); C09K 8/60 (2006.01); E21B 33/13 (2006.01); E21B 43/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process is provided to prepare solid borozirconate and solid borotitanate cross-linkers, which comprises contacting zirconium or titanium complex with alkanolamine at particular mole ratios of boron, zirconium or titanium and alkanolamine. Use of the cross-linkers in compositions for oil field applications such as hydraulic fracturing and plugging of permeable zones are also disclosed.