Patent ID: 11932479
Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
Field: Pharmaceuticals (Chemistry)
Classification: CPC B  C  A | IPC B  C

Claim 9:
10. A method for producing a package comprising a layered double hydroxide having HS− and/or Sk2− (wherein k represents a positive integer) intercalated among layers, and a packaging material hermetically housing the layered double hydroxide, the method comprising:
preparing an aqueous solution containing plural kinds of metal ions, and an alkali solution containing HS− and/or Sk2− (wherein k represents a positive integer);
mixing the aqueous solution and the alkali solution under a nitrogen gas or rare gas atmosphere to provide a precipitate;
ripening the solution containing the precipitate under a nitrogen gas or rare gas atmosphere;
separating the precipitate after the ripening from the solution, and washing and drying the precipitate, under a nitrogen gas or rare gas atmosphere; and
sealing a solid matter after the drying in a packaging material.