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Synthetic chalcoalumite-type compounds and processes for producing the same

Patent 5980856 Issued on November 9, 1999. Estimated Expiration Date: Icon_subject November 24, 2017. 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.

Patent References

Gastric antacid and method for controlling pH of gastric juice
Patent #: 4514389
Issued on: 04/30/1985
Inventor: Miyata

Lithium aluminum complex hydroxide salt stabilizer for resins
Patent #: 5356567
Issued on: 10/18/1994
Inventor: Ogawa, et al.

Antistatic agent for polyacetal resins Patent #: 5424351
Issued on: 06/13/1995
Inventor: Komatsu, et al.

Inventors

Assignee

Application

No. 976640 filed on 11/24/1997

US Classes:

423/600, Aluminum (e.g., aluminate, etc.)423/43, Specified pH423/104, Hydroxylating or hydrating423/115, Forming compound containing plural metals423/127, Hydroxylating or hydrating423/140, Forming insoluble substance in liquid423/164, Hydroxylating or hydrating423/179.5, Lithium423/306, Plural metal or metal and ammonium containing423/327.1, Aluminum containing423/395, Nitrate423/420.2, Plural metal containing423/518, Plural metal containing423/554, Alkaline earth metal containing (Mg, Ca, Sr, or Ba)423/556, Aluminum containing423/594.6, And alkali metal or alkaline earth metal containing502/414Aluminum containing

Examiners

Primary: Bos, Steven

Attorney, Agent or Firm

Foreign Patent References

  • 0549340 EP. 06/13/1993
  • 0636580 EP. 02/13/1995
  • 0672619 EP. 09/13/1995
  • 9-169875 JP. 06/13/1997
  • WO96/28508 WO. 09/13/1996
  • 97/00828 WO. 01/13/1997
  • 9-143324 WO. 06/13/1997

International Classes

C01F 007/00
C01B 025/00
C01B 031/30
C01B 033/00

Foreign Application Priority Data

1996-11-26 JP

Abstract

This invention relates to synthetic chalcoalumite-type compounds represented by formula (1) below:M2+a-x/2 Lix1+ Al43+ (OH)b (An-)c.mH2 O (1)(whereinM2+ represents at least one of the following divalent metal ions: Zn2+, Cu2+, Ni2+ and Mg2+,a is 0.6<a<1.2,x is 0<x<1.4,b is 11<b<13,An- is at least one member of the group consisting of SO42-, HPO42-, CO32-, SiO32-, SO32-, HPO32-, H2 PO4-, NO3- and OH-,c is 0.5<c<1.2, andm represents a number of 1 to 4)and processes for their preparation. The synthetic chalcoalumite-type compounds of the present invention are conveniently used for adsorbing agents of acidic substances, anion exchangers, infrared absorption agents for agricultural films, deodorants and recording media for ink jet, etc.

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