Pressure medium and method for using pressure medium
AssigneeIdemitsu Kosan Co., Ltd.
InventorsKenji GOTO, Yusuke NAKANISHI, Keizo MURATA
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Abstract
A pressure medium containing at least one Group-14 element-containing organic compound (A) selected from the group consisting of a compound (A1) represented by the general formula (a1) and a compound (A2) represented by the general formula (a2): where each of Ra11, Ra12, Ra13, and Ra14 independently represents an alkyl group having 3 to 6 carbon atoms, and Za1 represents a carbon atom or a silicon atom: where each of Ra21, Ra22, Ra23, and Ra24 independently represents an alkyl group having 3 to 6 carbon atoms, and Za2 represents a silicon atom, a germanium atom, a tin atom, or a lead atom.
Claims12
A pressure medium comprising at least one Group-14 element-containing organic compound (A) selected from the group consisting of a compound (A1) represented by the general formula (a1) and a compound (A2) represented by the general formula (a2):
- wherein each of Ra11, Ra12, Ra13, and Ra14 independently represents an alkyl group having 3 to 6 carbon atoms, and Za1 represents a carbon atom or a silicon atom:
- wherein each of Ra21, Ra22, Ra23, and Ra24 independently represents an alkyl group having 3 to 6 carbon atoms, and Za2 represents a silicon atom, a germanium atom, a tin atom, or a lead atom.
Dependencies are inferred from the claim text.