公开(公告)号：US3826798A

公开(公告)日：1974-07-30

申请号：US29737972

申请日：1972-10-13

Applicant: STANDARD OIL CO

Inventor： UDELHOFEN J ,  WATSON R ,  KURASIEWICZ A

IPC: C08L23/00 ,  C08K5/45 ,  C08K5/46 ,  C08L101/00 ,  C10G29/20 ,  C10M159/12 ,  C10M161/00 ,  C10M163/00 ,  C10N30/00 ,  C10N30/10 ,  C10N30/12 ,  C10N40/25 ,  C07G17/00

CPC classification number: C10M1/08 ,  C08K5/46 ,  C10M2215/04 ,  C10M2215/062 ,  C10M2215/26 ,  C10M2219/10 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106 ,  C10M2223/12 ,  C10M2225/04 ,  C10M2225/041 ,  C10N2240/105 ,  C10N2270/02 ,  C08L23/32

Abstract: OLEAGINOUS CRANKCASE LUBRICANTS CONTAINING PHOSPHOSULFURIZED HYDROCARBON POLYMER RESIST DETERIORATION DURING INSERVICE USE FOR INTERNAL COMBUSTION ENGINE LUBRICATION BUT THE PUNGENT, OBNOXIOUS ODOR AND CONTINUAL HYDROGEN SULFIDE EVOLUTION CHARACTERISTTIC OF SUCH PHOSPHOSULFURIZED HYDROCARBON DURING SUCH USE HAVE PREVENTED USE OF SAID OLEAGINOUS CRANKCASE LUBRICANTS. SAID ODOR AND INSTABILITY OF SUCH PHOSPHOSULFURIZED HYDROCARBON ARE IMPROVED BY ADDING THERETO A MINOR AMOUNT OF 2,5-BIS(ALKYLTHIO)-1,3,4THIADIAZOLE AND THE RESULTING COMPOSITION PROVIDES INHIBITION TO BEARING METAL CORROSION AND OXIDATIVE THICKENING OF OLEAGINOUS CRANKCASE LUBRICANTS.