Methods for preparing amorphous zirconium phosphosilicate
Patent 4526765 Issued on July 2, 1985. Estimated Expiration Date: August 4, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
The present invention provides novel amorphous phosphosilicates represented by the formulae Zr(PO4)2y (SiO2)z.n'H2 O (I) and M2/l Zr(PO4)2y (SiO2).n'H2 O (III) and the processes for producing the same.
Other References
V L. Struzhko et al., Ukr. Khim. Zh., pp. 1217-1220, T. 47, No. 11, (1981)