Microbicides

Patent 5296238 Issued on March 22, 1994. Estimated Expiration Date:

March 22, 2011. 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.

Abstract Claims Description Full Text

Patent References

1170056

Ion exchange material
Patent #: 4025608
Issued on: 05/24/1977
Inventor: Tawil , et al.

Modified zirconium phosphates
Patent #: 4059679
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Inventor: Clearfield

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Inventor: Niira, deceased, et al.

Inventors

Assignee

Toagosei Chemical Industry Co., Ltd.

Application

No. 659960 filed on 02/26/1991

US Classes:

424/604, Heavy metal containing423/306, Plural metal or metal and ammonium containing423/311, Orthophosphate423/312, Alkali metal or ammonium containing424/601, Phosphorus or phosphorus compound424/606, Sodium containing or fluorine containing424/617, Heavy metal or compound thereof424/618Silver

Examiners

Primary: Robinson, Allen J.
Assistant: Pak, John

Attorney, Agent or Firm

Browdy and neimark

Foreign Patent References

58-077805 JP 05/12/1983
62-083309 JP 04/12/1987
265809 JP. 11/12/1988
0296508 JP. 04/12/1990
662491 SU 05/12/1979
2224727 GB. 06/12/1990

International Classes

A01N 059/16
A01N 059/26

Abstract

The present invention provides a microbicide which comprises a phosphate represented by the following general formula:Ma1 Ab Mc2 (PO4)d.nH₂ Owherein M1 represents at least one element selected from the group consisting of silver, copper, zinc, tin, mercury, lead, iron, cobalt, nickel, manganese, arsenic, antimony, bismuth, barium, cadmium and chromium, M2 represents at least one element selected from tetravelent metal elements, A represents at least one ion selected from the group consisting of hydrogen ion, alkali metal ions, alkaline earth metal ions and ammonium ion, n represents a number which satisfies 0ࣘnࣘ6, a and b each represents a positive number and satisfy la+mb=1 or la+mb=2, and when a and b satisfy la+mb=1, c is 2 and d is 3, and when a and b satisfy la+mb=2, c is 1 and d is 2, where 1 is valence of M1 and m is valence of A.

Other References

James Alamo et al., UltraLow-Expansion Ceramics in the System Na₂ O-ZrO₂ -P₂ O₅ -SiO₂, Communications of the American Ceramic Society, May 1984
Lars-Ove Hagman et al., The Crystal Structure of NaMe₂^IV (PO₄)₃ ; Me^IV =Ge, Ti, Zr, Acta Chemica Scandinavica, 22, pp. 1822-1832, (1968)
Sridhar Komarneni, Hydrothermal Preparation of the Low-Expansion NZP Family of Materials, International Journal High Technology Ceramics, 4, pp. 31-39, (1988)
Katsuhiko Itoh et al., Synthesis of Properties of Crystalline Zirconium Phosphates, Advances in Ceramics, vol. 24: Science and Technology of Zirconia III, 1988, pp. 1007-1014
Clearfield, A. et al. "Synthesis of Sodium Dizorconium . . . " Mat. Res. Bull., vol. 15 (11), Nov. 1980, pp. 1603-1610
Chemical Abstracts 113: 206704t, abstracting JP 02 96508, published Apr. 9, 199