JPWO2017145895A1 - 冷凍機油 - Google Patents
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Abstract
Description
Y2−(OA3)e− (A−2)
(上記式(A−2)中、Y2は水素原子、アルキル基又はシクロアルキル基を示し、A3は炭素数2〜4のアルキレン基を示し、eは1〜50の整数を示す)で表される基を示し、A1及びA2は同一でも異なっていてもよく、それぞれ炭素数2〜4のアルキレン基を示し、Y1は水素原子、アルキル基又はシクロアルキル基を示し、Bは3〜20個の水酸基を有する化合物の残基を示し、aは1〜20、bは0〜19でかつa+b=3〜20となる整数を示し、cは0〜50の整数、dは1〜50の整数をそれぞれ示す。]
(a)一方の末端が式(4)又は(5)で表され、かつ他方の末端が式(6)又は(7)で表される構造を有し、式(1)におけるR1、R2及びR3がいずれも水素原子、mが0〜4の整数、R4が炭素数2〜4の二価の炭化水素基、R5が炭素数1〜20の炭化水素基であるポリビニルエーテル。
(b)式(1)で表される構造単位のみを有するものであって、一方の末端が式(4)で表され、かつ他方の末端が式(6)で表される構造を有し、式(1)におけるR1、R2及びR3がいずれも水素原子、mが0〜4の整数、R4が炭素数2〜4の二価の炭化水素基、R5が炭素数1〜20の炭化水素基であるポリビニルエーテル。
(c)一方の末端が式(4)又は(5)で表され、かつ他方の末端が式(8)で表される構造を有し、式(1)におけるR1、R2及びR3がいずれも水素原子、mが0〜4の整数、R4が炭素数2〜4の二価の炭化水素基、R5が炭素数1〜20の炭化水素基であるポリビニルエーテル。
(d)式(1)で表される構造単位のみを有するものであって、一方の末端が式(5)で表され、かつ他方の末端が式(8)で表される構造を有し、式(1)におけるR1、R2及びR3がいずれも水素原子、mが0〜4の整数、R4が炭素数2〜4の二価の炭化水素基、R5が炭素数1〜20の炭化水素基であるポリビニルエーテル。
(e)上記(a),(b),(c)及び(d)のいずれかであって、式(1)におけるR5が炭素数1〜3の炭化水素基である構造単位と該R5が炭素数3〜20の炭化水素基である構造単位とを有するポリビニルエーテル。
Rα−[(ORβ)f−ORγ]g (9)
[式(1)中、Rαは水素原子、炭素数1〜10のアルキル基、炭素数2〜10のアシル基又は2〜8個の水酸基を有する化合物の残基を表し、Rβは炭素数2〜4のアルキレン基を表し、Rγは水素原子、炭素数1〜10のアルキル基又は炭素数2〜10のアシル基を表し、fは1〜80の整数を表し、gは1〜8の整数を表す。]
iC4:2−メチルプロパン酸
nC5:n−ペンタン酸
iC8:2−エチルヘキサン酸
iC9:3,5,5−トリメチルヘキサン酸
nC10:n−デカン酸
iC18:2−エチルヘキサデカン酸
nC22:ドコサン酸
PET:ペンタエリスリトール
DiPET:ジペンタエリスリトール
基油10:コンプレックスエステル(アジピン酸と、ブタンジオールと、ネオペンチルグリコールと、イソノナノールとのエステル、炭素/酸素モル比:5.0)
基油11:ポリアルキレングリコール(ポリプロピレングリコールの両末端メチルエーテル化物、重量平均分子量:1100、炭素/酸素モル比:2.9)
基油12:ポリビニルエーテル(エチルビニルエーテルとイソブチルビニルエーテルとの共重合体、エチルビニルエーテル/イソブチルビニルエーテル=7/1(モル比)、重量平均分子量:910、炭素/酸素モル比:4.3)
添加剤1:グリシジルネオデカノエート
添加剤2:2−エチルヘキシルグリシジルエーテル
添加剤3:トリクレジルホスフェート
添加剤4:2,6−ジ−tert.−ブチル−p−クレゾール
安定性試験は、JIS K2211:2009(オートクレーブテスト)に準拠して行った。具体的には、含有水分量を100ppmに調整した供試油80gをオートクレーブに秤取し、触媒(鉄、銅、アルミの線、いずれも外径1.6mm×長さ50mm)、及び、シス−1−クロロ−2,3,3,3−テトラフルオロプロペン(HCFO−1224yd(Z))冷媒20gを封入した後、140℃に加熱し、160時間後の供試油の酸価(JIS C2101:1999)を測定した。
JIS K2211:2009「冷凍機油」の「冷媒との相溶性試験方法」に準拠して、シス−1−クロロ−2,3,3,3−テトラフルオロプロペン(HCFO−1224yd(Z))冷媒10gに対して供試油を10g配合し、冷媒と冷凍機油とが0℃において相互に溶解しているかを観察した。
Claims (5)
- 炭素/酸素モル比が2.5以上7.5以下である含酸素油の少なくとも1種を基油として含有し、
1−クロロ−2,3,3,3−テトラフルオロプロペン冷媒と共に用いられる、冷凍機油。 - 前記含酸素油として、炭素数4〜20の脂肪酸の割合が20〜100モル%である脂肪酸と多価アルコールとのエステルを含有する、請求項1に記載の冷凍機油。
- 酸捕捉剤、酸化防止剤、極圧剤、油性剤、消泡剤、金属不活性化剤、摩耗防止剤、粘度指数向上剤、流動点降下剤、清浄分散剤、摩擦調整剤及び防錆剤からなる群より選ばれる少なくとも1種の添加剤を更に含有する、請求項1又は2に記載の冷凍機油。
- 炭素/酸素モル比が2.5以上7.5以下である含酸素油の少なくとも1種を基油として含有する組成物の、1−クロロ−2,3,3,3−テトラフルオロプロペン冷媒と共に用いられる冷凍機油への応用。
- 炭素/酸素モル比が2.5以上7.5以下である含酸素油の少なくとも1種を基油として含有する組成物の、1−クロロ−2,3,3,3−テトラフルオロプロペン冷媒と共に用いられる冷凍機油の製造のための応用。
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PCT/JP2017/005547 WO2017145895A1 (ja) | 2016-02-24 | 2017-02-15 | 冷凍機油 |
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JP6908042B2 (ja) * | 2016-07-29 | 2021-07-21 | Agc株式会社 | 熱サイクル用作動媒体 |
EP3597719B1 (en) * | 2017-03-17 | 2023-01-11 | AGC Inc. | Composition for heat cycle system, and heat cycle system |
WO2019194195A1 (ja) * | 2018-04-02 | 2019-10-10 | Jxtgエネルギー株式会社 | 冷凍機、冷凍機油及び冷凍機用作動流体組成物 |
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US11001779B2 (en) * | 2016-09-15 | 2021-05-11 | Eneos Corporation | Refrigerator oil and refrigerator working fluid composition |
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WO2012157763A1 (ja) * | 2011-05-19 | 2012-11-22 | 旭硝子株式会社 | 作動媒体および熱サイクルシステム |
WO2015163072A1 (ja) * | 2014-04-23 | 2015-10-29 | Jx日鉱日石エネルギー株式会社 | 冷凍機油及び冷凍機用作動流体組成物 |
WO2016171256A1 (ja) * | 2015-04-24 | 2016-10-27 | 旭硝子株式会社 | 熱サイクルシステム用組成物および熱サイクルシステム |
WO2016171264A1 (ja) * | 2015-04-24 | 2016-10-27 | 旭硝子株式会社 | 熱サイクルシステム用組成物および熱サイクルシステム |
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US10759982B2 (en) | 2020-09-01 |
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