Pressure medium oil and method for using said pressure medium oil

Patent metadata

Field	Value
Publication number	US-10233402-B2
Application number	US-201515508128-A
Country	US
Kind code	B2
Filing date	Sep 11, 2015
Priority date	Sep 12, 2014
Publication date	Mar 19, 2019
Grant date	Mar 19, 2019

Abstract

Provided are a pressure medium oil, containing a Group-14 element-containing organic compound selected from an organic germanium compound, an organic tin compound, and an organic lead compound, and a method for using a pressure medium oil, which includes applying a pressure to a substance via the pressure medium oil. The pressure medium oil does not solidify even under an ultrahigh pressure of more than 3.7 GPa at room temperature (25° C.) and has a low pour point, and hardly dissolves a conductive paste.

First claim

The invention claimed is:

1. A method, comprising applying pressure to a substance with a pressure medium oil comprising a Group-14 element-containing organic compound selected from the group consisting of an organic germanium compound, an organic tin compound, and an organic lead compound,
wherein:
a content of the Group-14 element-containing organic compound is from 70 to 100% by mass, based on a total amount of the pressure medium oil;
a kinematic viscosity at 40° C. of the Group-14 element-containing organic compound is 20 mm 2 /s or less; and
the pour point of the Group-14 element-containing organic compound is −40° C. or lower, or
the pressure medium oil has a solidification pressure at 25° C. of more than 3.7 GPa.

2. The method according to claim 1 , wherein the pour point of the Group-14 element-containing organic compound is −40° C. or lower.

3. The method according to claim 1 , wherein the content of the Group-14 element-containing organic compound is from 80 to 100% by mass, based on the total amount of the pressure medium oil.

4. A method, comprising applying pressure to a substance with a pressure medium oil comprising a Group-14 element-containing organic compound selected from the group consisting of an organic germanium compound, an organic tin compound, and an organic lead compound, wherein the Group-14 element-containing organic compound comprises a compound represented by the following general formula (1) or a compound represented by the following general formula (2):

wherein:
a content of the Group-14 element-containing organic compound is from 70 to 100% by mass, based on a total amount of the pressure medium oil;
a kinematic viscosity at 40° C. of the Group-14 element-containing organic compound is 20 mm 2 /s or less;
each of R a , R b , R c , and R d independently represents a hydrogen atom, a halogen atom, an alkyl group, or an alkoxy group, with the proviso that at least one of R a , R b , R c , and R d is an alkyl group or an alkoxy group;
each of R 1 to R 8 independently represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, with the proviso that at least one of R 1 to R 8 is an alkyl group or an alkoxy group;
n indicates an integer of 0 or more; and
each of Z independently represents a germanium atom, a tin atom or a lead atom, and plural Z's may be the same as or different from each other.

5. The method according to claim 4 , wherein:
the Group-14 element-containing organic compound comprises the compound represented by the following general formula (1); and
each of R a , R b , R c , and R d in the general formula (1) independently represents a hydrogen atom, an alkyl group having 1 to 30 carbon atoms, or an alkoxy group having 1 to 30 carbon atoms.

6. The method according to claim 4 , wherein:
the Group-14 element-containing organic compound comprises the compound represented by the general formula (2)
each of R 1 to R 8 independently represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, with the proviso that at least one of R 1 to R 8 is an alkyl group or an alkoxy group;
n indicates an integer of 0 or more; and
each of Z independently represents a germanium atom, a tin atom or a lead atom, and plural Z's may be the same as or different from each other.

7. A method, comprising applying pressure to a substance with a pressure medium oil comprising an organic germanium compound comprising a compound represented by the following general formula (1A) or a compound represented by the following general formula (2A):

wherein:
a content of the Group-14 element-containing organic compound is from 70 to 100% by mass, based on a total amount of the pressure medium oil;
a kinematic viscosity at 40° C. of the Group-14 element-containing organic compound is 20 mm 2 /s or less;
each of R a , R b , R c , and R d independently represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, with the proviso that at least one of R a , R b , R c , and R d is an alkyl group or an alkoxy group;
each of R 1 to R 8 independently represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, with the proviso that at least one of R 1 to R 8 is an alkyl group or an alkoxy group; and
n indicates an integer of 0 or more.

8. The method according to claim 7 , wherein:
the organic germanium compound comprises the compound represented by the general formula (2A)
each of R 1 to R 8 independently represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, with the proviso that at least one of R 1 to R 8 is an alkyl group or an alkoxy group; and
n indicates an integer of 0 or more.

9. A method, comprising applying pressure to a substance with a pressure medium oil comprising an organic tin compound comprising a compound represented by the following general formula (1B) or a compound represented by the following general formula (2B):

wherein:
a content of the Group-14 element-containing organic compound is from 70 to 100% by mass, based on a total amount of the pressure medium oil;
a kinematic viscosity at 40° C. of the Group-14 element-containing organic compound is 20 mm 2 /s or less;
each of R a , R b , R c , and R d independently represents a hydrogen atom, a halogen atom, an alkyl group, or an alkoxy group, with the proviso that at least one of R a , R b , R c , and R d is an alkyl group or an alkoxy group;
each of R 1 to R 8 independently represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, with the proviso that at least one of R 1 to R 8 is an alkyl group or an alkoxy group; and
n indicates an integer of 0 or more.

10. The method according to claim 9 , wherein the organic tin compound comprises the compound represented by the general formula (2B)
wherein:
each of R 1 to R 8 independently represents a hydrogen atom, a halogen atom, an alkyl group or an alkoxy group, with the proviso that at least one of R 1 to R 8 is an alkyl group or an alkoxy group; and
n indicates an integer of 0 or more.

11. A method, comprising applying pressure to a substance with a pressure medium oil comprising an organic lead compound comprising a compound represented by the following general formula (1C) or a compound represented by the following general formula (2C):

wherein:
a content of the Group-14 element-containing organic compound is from 70 to 100% by mass, based on a total amount of the pressure medium oil;
a kinematic viscosity at 40° C. of the Group-14 element-containing organic compound is 20 mm 2 /s or less;
each of R a , R b , R c , and R d independently represents a hydrogen atom, a halogen atom, an alkyl group, or

Assignees

• Idemitsu Kosan Co

Inventors

• Aoki Shinji
• Kobessho Masahiro
• Murata Keizo

Classifications

• C10N2040/14

  Electric or magnetic purposes · CPC title

• C10M105/80 Primary

  containing atoms of elements not provided for in groups C10M105/02 - C10M105/78 · CPC title

• C10M2227/08

  having metal-to-carbon bonds · CPC title

• C10M2227/083

  Sn compounds · CPC title

• C10M2227/082

  Pb compounds · CPC title