发明名称
摘要 NEW MATERIAL:A compound of formula I (R is 5-30C aliphatic or alicyclic hydrocarbon group: (n) is 2, 3). EXAMPLE:Dipropylene glycol-di(2-ethylhexyl) carbonate. USE:A lubricant, freezer oil and electric insulating oil. The compound of formula I has excellent compatibility with ozone layer-non-decomposable Freon (e.g. R134a) and is especially suitable for freezers employing the fleon as a cooling medium. PREPARATION:While a produced alcohol (R1OH) is removed outside the reaction system, dipropylene glycol or tripropylene glycol is made to react with a carbonate compound of formula II (R1 is R) in a ratio of m1/2m2 (m1 is the mole number of the carbonate compound; m2 is the mole number of the propylene glycol compound) or 2-50, preferably 2-30, to provide the compound of formula I.
申请公布号 JP2854118(B2) 申请公布日期 1999.02.03
申请号 JP19900261272 申请日期 1990.09.28
申请人 MITSUI KAGAKU KK 发明人 TANAKA MASAHIDE;SHIMAMOTO KENJI
分类号 C07C69/96;C10M105/38;C10N40/16;C10N40/30;H01B3/20;(IPC1-7):C07C69/96 主分类号 C07C69/96
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