Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and... – Organic phosphorus compound – wherein the phosphorus is...
Reexamination Certificate
2005-04-12
2005-04-12
McAvoy, Ellen (Department: 1764)
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
Organic phosphorus compound, wherein the phosphorus is...
C508S436000, C508S440000, C508S485000, C508S486000, C508S487000, C508S513000, C508S539000, C508S551000, C508S579000, C252S068000
Reexamination Certificate
active
06878677
ABSTRACT:
The invention provides a refrigerator oil composition comprising a base oil of a mineral oil and/or a synthetic oil, and containing (a) a partial ester of a polyalcohol and a fatty acid and (b) an acid phosphate or its amine salt; and a refrigerator oil composition comprising a base oil of a mineral oil and/or a synthetic oil, and containing any of (a) acid phosphates or their amine salts, (b) acetylene glycol alkylene oxide adducts, (c) potassium salts of fatty acids, etc., (d) organic acids, and (e) fatty acid amides. The refrigerator oil compositions have good lubricity and are especially effective for reducing the friction in both the oil region and the extreme-pressure region in the sliding area between aluminium materials and steel materials.
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Jido Youichiro
Nagakawa Hiroshi
Sakanoue Shuichi
Takagi Minoru
Takesue Masahiko
Idemitsu Kosan Co. Ltd.
McAvoy Ellen
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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