Patent · US Active

Solid borozirconate and borotitanate cross-linkers

US7732384B2 · kind B2 · utility

3Cited by

11References

21Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Donald Edward Putzig · Newark, US
Peter Jernakoff · Wilmington, US

Key dates

Filing date	Dec 21, 2007
Grant date	Jun 8, 2010
Priority date	—
Expiry date	Oct 2, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K8/685
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.