Title: Refrigerating machine oil compositions
Application Number: 200480020693 Application Date: 2004.07.29
Publication Number: 1826400 Publication Date: 2006.08.30
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C10M129/70,C10M129/08,C10M129/16,C10M129/72,C10M129/74,C10M141/10,C10M145/26,C10M161/00,C10M169/04,C
Applicant(s) Name: Nippon Oil Corp. Address:
Inventor(s) Name: Tagawa Kazuo, Shimomura Yuji, Obata Toshiyuki
Attorney & Agent: wang jian
Abstract:
     The first refrigerating machine oil composition of the invention comprises a prescribed base oil and at least one ester additive selected from among monoesters of monounsaturated fatty acids having 12 or more carbon atoms with monohydric alcohols having 1 to 24 carbon atoms and esters of linear dibasic acids with monohydric alcohols; the second refrigerating machine oil composition of the invention comprises a prescribed base oil and at least one oxygen-containing compound selected from among those of the following items (A1) to (A6); and the third refrigerating machine oil composition of the invention comprises a prescribed base oil and at least one oxygen-containing compound selected from among those of the following items (A1), (A2), (A4), (A7), and (A8): (A1) adducts of polyhydric alcohols having 3 to 6 hydroxyl groups with alkylene oxides, (A2) polyalkylene glycols, (A3) trihydric alcohols of 3 to 20 carbon atoms other than those of the item (A1), (A4) dihydric alcohols of 2 to 20 carbon atoms other than those of the item (A2), (A5) hydrocarbyl ethers of compounds of the items (A1) to (A4), (A6) hydrocarbyl esters of compounds of the items (A1) to (A4), (A7) hydrocarbyl ethers of compounds of the items (A1), (A2) and (A4), and (A8) hydrocarbyl esters of compounds of the items (A1), (A2) and (A4).
Time: 8
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