PURPOSE: To obtain an ionic compound composition which can reduce damages to the sample, when the sample is encapsulated, and gives an encapsulated article of good appearance. ;CONSTITUTION: The ionic compound composition contains an ammonium compound, causes phase transition depending on temperature in the range of 6.0 to 8.4 in pH and is prepared by adjusting the molar ratio of the starting substances to 1 in its synthesis, or adding an alkali or acidic substance after the reaction to regulate the pH.;COPYRIGHT: (C)1995,JPO
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