[특허]Refrigerator oil composition for hydrogen-containing hydrofluorocarbon refrigerant

Refrigerator oil composition for hydrogen-containing hydrofluorocarbon refrigerant 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C10M-169/04 C10M-107/34 C10M-137/04 C10M-129/76
출원번호	US-0743293 (1991-08-14)
우선권정보	JP-0322559 (1989-12-14); JP-0087014 (1990-03-31)
국제출원번호	PCT/JP90/01469 (1990-11-13)
§371/§102 date	19910814 (19910814)
국제공개번호	WO-9109096 (1991-06-27)
발명자 / 주소	Seiki Hiromichi (Ichihara JPX) Kaneko Masato (Ichihara JPX)
출원인 / 주소	Idemitsu Kosan Co., Ltd. (Tokyo JPX 03)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

There is disclosed a refrigerator oil composition for hydrogen-containing hydrofluorocarbon (hydrogenated Flon compound) refrigerant which comprises a polyoxyalkylene glycol derivative and/or a specific polyester compound, which are/is compounded with (a) an aliphatic acid partially esterified with a polyhydric alcohol and (b) a phosphate compound and/or a phosphite compound. The refrigerator oil composition according to the present invention can be utilized as a refrigerator oil effective for improving wear resistance, especially that between aluminum material and steel material owing to the excellent miscibility with hydrogenated Flon refrigerant such as Flon 134a as well as prominent lubrication performance.

대표청구항 ▼

A refrigerator oil composition for a hydrogen-containing hydrofluorocarbon refrigerant which comprises a component (1) that is at least one compound selected from the group consisting of (A) a polyoxyalkylene glycol derivative represented by the formula R1－O－(R2O)m－R3 (I) and/or by the formula [Figure] (II) wherein R1, R3, R5, R7 and R9 are each a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an acyl group having 1 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms or a cycloalkyl group having 4 to 20 carbon atoms; R2, R4, R6 and R8 are each an alkylene group having 2 to 4 carbon atoms; m is an integer from 3 to 100; and n, p and r are each a positive integer simultaneously satisfying the relationship 3≤n+p+r≤100; and (B) a polyester compound having a kinematic viscosity at 40°C. of 5 to 1000 cSt and at least two ester linkages which is a reaction product of (i) a polybasic carboxylic acid or derivative thereof, (ii) a polyhydric alcohol or derivative thereof, and (iii) a monobasic aliphatic acid or derivative thereof, a reaction product of (i) a polybasic carboxylic acid or derivative thereof, (ii) a polyhydric alcohol or derivative thereof, (iv) a monohydric aliphatic alcohol or derivative thereof, a reaction product of (ii) a polyhydric alcohol or derivative thereof, and (iii) a monobasic aliphatic acid or derivative thereof, or a reaction product of (iv) a monohydric aliphatic alcohol or derivative thereof, and (i) a polybasic carboxylic acid or derivative thereof; a component (2) that is (a) a polyhydric alcohol partially esterified with a monobasic aliphatic acid and a component (3) that is at least one organic compound (b) selected from the group consisting of a phosphate compound and a phosphite compound. A refrigerator oil composition for a hydrogen-containing hydrofluorocarbon refrigerant which comprises a component (1) that is at least one compound selected from the group consisting of a polyester compound having a kinematic viscosity at 40°C. of 5 to 1000 cSt and at least two ester linkages which is a reaction product of (i) a polybasic carboxylic acid or derivative thereof, (ii) a polyhydric alcohol or derivative thereof and (iii) a monobasic aliphatic acid or derivative thereof, a reaction product of (i) a polybasic carboxylic acid or derivative thereof, (ii) a polyhydric alcohol or derivative thereof, (iv) a monohydric aliphatic alcohol or derivative thereof, a reaction product of (ii) a polyhydric alcohol or derivative thereof, and (iii) a monobasic aliphatic acid or derivative thereof, or a reaction product of (iv) a monohydric aliphatic alcohol or derivative thereof, and (i) a polybasic carboxylic acid or derivative thereof; a component (2) that is (a) a polyhydric alcohol partially esterified with an aliphatic acid and a component (3) that is at least one organic compound (b) selected from the group consisting of a phosphate compound and a phosphite compound.

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Schnur,Nicholas E.; Beimesch,Bruce J., Method of improving performance of refrigerant systems.
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Genichirou Enna JP; Hiroki Fukuda JP; Yoshihiro Ohtsuka JP, Polyether-containing composition suitable for use in a refrigerator.
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Schlosberg Richard Henry ; Aldrich Haven S. ; Sherwood-Williams Lavonde Denise ; Szobota John S. ; Krevalis Martin Anthony ; Leta Daniel P. ; Holt David Gary Lawton,CAX ; Gordon Fay H.,GB2, Polyol ester compositions with unconverted hydroxyl groups.
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Schnur, Nicholas E.; Zehler, Eugene R., Polyol ester lubricants for hermetically sealed refrigerating compressors.
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