IP Library › Granted Patent US 9,523,058
Granted Patent B2
US 9,523,058 · App. 14/385,353 · Granted Dec 20, 2016

Mixed ester

Inventors: Junya Kishi (Mie, JP); Yuichiro Nakai (Chiba, JP); Shinji Tanaka (Mie, JP); Toshihiro Inayama (Mie, JP)
Assignee: KH NEOCHEM CO., LTD.
C10M105/34C07C69/33C09K5/045C09K5/10C10M105/38C10M171/008C09K2205/126C10M2207/026C10M2207/2835C10M2223/041C10N2220/028C10N2220/302C10N2230/02C10N2230/06C10N2230/70C10N2240/30
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Quick Facts
Patent No.
US 9,523,058
App. No.
14/385,353
Granted
Dec 20, 2016
Kind
B2
Abstract

The present invention provides a mixed ester of pentaerythritol or a mixed polyhydric alcohol and carboxylic acids; the mixed polyhydric alcohol consisting of pentaerythritol and dipentaerythritol represented by formula (I), and the carboxylic acids comprising 2-ethylhexanoic acid and 2-propylheptanoic acid. The mixed ester exhibits excellent properties (e.g., miscibility with a refrigerant that comprises fluoropropene, low-temperature fluidity, and lubricity) in a well-balanced manner while having the viscosity within the range required for a refrigerant oil, and may be used in an industrial lubricant (e.g., refrigerant oil) and the like.

Claims (12)

1. A mixed ester of pentaerythritol or a mixed polyhydric alcohol and carboxylic acids; the mixed polyhydric alcohol consisting of pentaerythritol and dipentaerythritol represented by the following formula (I), and the carboxylic acids comprising 2-ethylhexanoic acid and 2-propylheptanoic acid.

2. The mixed ester according to claim 1 , wherein the carboxylic acids consist of 2-ethylhexanoic acid and 2-propylheptanoic acid.

3. The mixed ester according to claim 1 , wherein the carboxylic acids comprise 2-ethylhexanoic acid and 2-propylheptanoic acid in a molar ratio of 90/10 to 10/90.

4. A refrigerant oil comprising the mixed ester according to claim 1 .

5. A working fluid composition for refrigerator comprising the refrigerant oil according to claim 4 and a refrigerant.

6. The mixed ester according to claim 2 , wherein the carboxylic acids comprise 2-ethylhexanoic acid and 2-propylheptanoic acid in a molar ratio of 90/10 to 10/90.

7. A refrigerant oil comprising the mixed ester according to claim 2 .

8. A refrigerant oil comprising the mixed ester according to claim 3 .

9. A refrigerant oil comprising the mixed ester according to claim 6 .

10. A working fluid composition for refrigerator comprising the refrigerant oil according to claim 7 and a refrigerant.

11. A working fluid composition for refrigerator comprising the refrigerant oil according to claim 8 and a refrigerant.

12. A working fluid composition for refrigerator comprising the refrigerant oil according to claim 9 and a refrigerant.

Assignments (2)
CHANGE OF ADDRESS Recorded Jul 23, 2019
From: KH NEOCHEM CO., LTD.
To: KH NEOCHEM CO., LTD.
Reel/Frame 049838/0070 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 15, 2014
From: KISHI, JUNYA; NAKAI, YUICHIRO; TANAKA, SHINJI; INAYAMA, TOSHIHIRO
To: KH NEOCHEM CO., LTD.
Reel/Frame 033741/0535 →
Priority Claims (1)
JP 2012-067386 · Mar 23, 2012 · national
Continuity (1)
Related Publication 20150090921A1 · Apr 2, 2015