公开(公告)号：US3840549A

公开(公告)日：1974-10-08

申请号：US28267672

申请日：1972-08-22

Applicant: STANDARD OIL CO

Inventor： BLAHA E ,  KURASIEWICZ A

IPC: C07D285/12 ,  C07D285/125 ,  C07D91/62

CPC classification number: C07D285/125 ,  C10M1/08 ,  C10M2219/046 ,  C10M2219/10 ,  C10M2219/102 ,  C10M2219/104 ,  C10M2219/106 ,  C10M2223/045 ,  C10N2210/02 ,  C10N2240/401 ,  C10N2270/02

Abstract: 1. A METHOD OF PREPARING 2-(HYDROCARBYLDITHIO)-5-ME CAPTO-1,3,4-THIADIAZOLE WHICH COMPRISES MIXING 2,5-DIME CAPTO-1,3,4-THIAZOLE AND 2,5-BIS(HYDROCARBYLDITHIO)1,3,4-THIADIAZOLE WHEREIN SAID HYDROCARBONYL GROUP OF THE REACTANT AND PRODUCT ARE ALKYL AND HAVE 1 TO 280 CARBON ATOMS.

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.

公开(公告)号：US3819660A

公开(公告)日：1974-06-25

申请号：US31767372

申请日：1972-12-22

Applicant: STANDARD OIL CO

Inventor： CAHILL P ,  KURASIEWICZ A

IPC: C07C51/567 ,  C07C57/13 ,  C07C55/10

CPC classification number: C07C57/13 ,  C07C51/567

Abstract: SUPPRESSION OF FUMARIC ACID SUBLIMATION AND TAR FORMATION DURING REACTON OF 168 TO 900 M.W. ALKENE WITH MALEIC ANHYDRIDE AND INCREASED YIELD OF ALKENYLSUCCINIC ANHYDRIDE ARE ACHIEVED BY THE USE OF CATALYTIC AMOUNT OF P-ALKYLBENZENESULFONIC ACID, ESPECIALLY P-TOLUENESULFONIC ACID AND 1-3 WEIGHT PARTS OF ACETIC ANHYDRIDE PER WEIGHT PART OF THE SULFONIC ACID DURING SAID REACTION.