Ether-containing monoester compound and use thereof

Patent metadata

Field	Value
Publication number	US-2016200998-A1
Application number	US-201414913170-A
Country	US
Kind code	A1
Filing date	Jul 11, 2014
Priority date	Sep 20, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

A compound of the present invention is represented by the general formula (1) and has a 40° C. kinetic viscosity (v) that satisfies 4 mm 2 /s≦v≦30 mm 2 /s,
C n H 2n+1 —(O—CH 2 CH 2 ) p —O—(CH 2 ) 3 —(C═O)—O—C m H 2m+1   (1)
(where O represents an oxygen atom, C represents a carbon atom, H represents a hydrogen atom, m is an integer of 1 to 18, n is an integer of 1 to 12, p is an integer of 1 to 3, and 2≦n+m≦30 is satisfied). The present invention provides (i) a lubricant excellent in energy-saving, heat resistance, and low-temperature fluidity and (ii) use of the lubricant.

First claim

1 . A compound being represented by the following general formula (1) and having a 40° C. kinetic viscosity (v) that satisfies 4 mm 2 /s≦v≦30 mm 2 /s,
C n H 2n+1 —(O—CH 2 CH 2 ) p —O—(CH 2 ) 3 —(C═O)—O—C m H 2m+1   (1)

(where O represents an oxygen atom, C represents a carbon atom, H represents a hydrogen atom, m is an integer of 1 to 18, n is an integer of 1 to 12, p is an integer of 1 to 3, and 2≦n+m≦30 is satisfied).

2 . The compound as set forth in claim 1 , wherein in the general formula (1), m is an integer of 10 to 14, n is an integer of 1 to 12, p is 2, and 11≦n+m≦26 is satisfied, and
the 40° C. kinetic viscosity (v) satisfies 4 mm 2 /s≦v≦20 mm 2 /s.

3 . The compound as set forth in claim 1 , wherein in the general formula (1), m is an integer of 1 to 14, n is an integer of 1 to 12, p is 1, and 5≦n+m≦26 is satisfied, and
the 40° C. kinetic viscosity (v) satisfies 4 mm 2 /s≦v≦20 mm 2 /s.

4 . The compound as set forth in claim 1 , wherein in the general formula (1), m is an integer of 1 to 18, n is an integer of 1 to 12, p is 3, and 2≦n+m≦30 is satisfied.

5 . The compound as set forth in claim 1 , wherein m, n and p are 12, 8, and 2, respectively, in the general formula (1).

6 . The compound as set forth in claim 1 , wherein m, n and p are 14, 8, and 2, respectively, in the general formula (1).

7 . The compound as set forth in claim 1 , wherein m, n and p are 10, 8, and 2, respectively, in the general formula (1).

8 . A lubricant comprising a compound as set forth in claim 1 .

9 . The lubricant as set forth in claim 8 , which is a lubricant for a fluid dynamic bearing or a lubricant for an impregnated bearing.

10 . A bearing which is lubricated with use of a lubricant as set forth in claim 8 .

11 . The bearing as set forth in claim 10 , which is a fluid dynamic bearing or an impregnated bearing.

12 . A method of lubricating a bearing, comprising the step of lubricating the bearing with use of a lubricant as set forth in claim 8 .

13 . A motor comprising a bearing as set forth in claim 10 .

14 . A method of producing a grease, using a lubricant as set forth in claim 8 .

15 . A grease comprising a lubricant as set forth in claim 8 .

16 . A freezer oil comprising a compound as set forth in claim 1 .

Assignees

• Moresco Corp

Inventors

• Maruyama Shingo
• Nakacho Yoshifumi

Classifications

• C10M2207/281

  of (cyclo)aliphatic monocarboxylic acids · CPC title

• C10M2215/064

  Di- and triaryl amines · CPC title

• C10N2050/10

  semi-solid; greasy · CPC title

• C10M129/70

  of monocarboxylic acids · CPC title

• F16C33/6696

  with solids as lubricant, e.g. dry coatings, powder · CPC title