Hydraulic fluids
    3.
    发明授权
    Hydraulic fluids 失效
    液压油

    公开(公告)号:US3679588A

    公开(公告)日:1972-07-25

    申请号:US3679588D

    申请日:1970-10-29

    Abstract: PETROLEUM BASED HYDRAULIC FLUIDS, WHEN CONTAIMINATED WITH SEA WATER FORM TIGHT SEA WATER-IN-OIL EMULSIONS AND PROTECT HYDRAULIC SYSTEMS CONSISTS OF PETROLEUM LUBRICATING OIL HAVING A VISCOSITY OF ABOUT 60-920 SSU AT 100*F. AND CONTAIN IN COMBINATION (A) ABOUT 4-8 VOLUME PERCENT OF A MINERAL OIL SOLUTION OF ABOUT 35-45 WEIGHT PERCENT OF THE CONDENSATION PRODUCT (I) 1 MOLE OF A MONOALKYLPHENOL WHEREIN THE ALKYL GROUP HAS ABOUT 90-120 CARBON ATOMS, (II) 1 MOLE OF TETRAETHYLENEPENTAAMINE, AND (III) 2 MOLES OF FORMALDEHYDE, SAID SOLUTION CONTAINING ABOUT 1.0-1.5 PERCENT NITROGEN; (B) ZERO TO ABOUT 0.5 VOLUME PERCENT OF POLYOXYETHYLENE LAURYL ALCOHOL HAVING ABOUT FOUR OXYETHYLENE GROUPS; (C) ABOUT 1.5-1.7 VOLUME PERCENT OF A MINERAL OIL SOLUTION OF ABOUT 40-50 WEIGHT PERCENT CALCIUM SULFONATE, SAID SOLUTION HAVING A TOTAL BASE NUMBER OF ABOUT 15-30; (D) ABOUT 0.25-0.35 VOLUME PERCENT OF 2.6-DI-(T-BUTYL)-PARACRESOL; (E) ABOUT 0.0350.045 VOLUME PERCENT OF BIS-(OCTYLDITHIO)-ETHIAZIAZOLE; (F) ZERO TO ABOUT 0.7 VOLUME PERCENT OF PARAFFIN WAX-NAPHTHALENE CONDENSATION PRODUCT; (G) ABOUT 0.1-0.4 VOLUME PERCENT OF A METHYLNAPHTHALENE SOLUTION OF ABOUT 4.8 WEIGHT PERCENT OF N,N''-DIMETHYLDITHIOOXAMIDE; AND (H) ABOUT 3-5 PARTS PER MILLION OF SILICONE OIL FOAM DEPRESSANT HAVING A VISCOSITY OF ABOUT 1000 CS. AT 25*C., SUCH FLUIDS HAVE A VISCOSITY OF ABOUT 12-220 CS. AT 100*F.

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