公开(公告)号：US3836575A

公开(公告)日：1974-09-17

申请号：US26384672

申请日：1972-06-19

Applicant: RHONE PROGIL

Inventor： BOUNIOT A

IPC: C07C69/54 ,  C07C67/00 ,  C07C67/327

CPC classification number: C07C67/327 ,  C07C69/54

Abstract: THIS CONTINUOUS MANUFACTURE OF METHYL METHACRYLATE BY HEATING B-METHOXY ISOBUTYRIC ACID IN THE PRESENCE OF A CATALYST OF ARYL SULFONIC ACID AND WITH THE CONTINUOUS ADDITION OF WATER.

公开(公告)号：US3836576A

公开(公告)日：1974-09-17

申请号：US35359073

申请日：1973-04-23

Applicant: RHONE PROGIL

Inventor： FALIZE C ,  BOUNIOT A

IPC: C07C67/03 ,  C07C69/54

CPC classification number: C07C69/54 ,  C07C67/03

Abstract: A PROCESS FOR THE TRANSESTERIFICATION WITH AN ALCOHOL OR ALCOHOLS CONTAINING 3-22 CARBON ATOMS OF A METHACRYLIC ACID ESTER FORMED OF AN ALCOHOL HAVING A LOWER BOILING POINT THAN THE ABOVE ALCOHOL, AND WHEREIN THE TRANSESTERIFICATION REACTION IS CARRIED OUT IN THE PRESENCE OF A TITANIUM ALCOHOLATE AS A CATALYST AND DINAPHTHYL PHENYLENE DIAMINE AS A POLYMERIZATION INHIBITOR, IN WHICH THE REACTION IS CARRIED OUT WITH OR WITHOUT BUBBLING AIR THROUGH THE REACTION MIXTURE, AND REMOVING THE DISPLACED ALCOHOL FROM THE REACTION MIXTURE, AS BY DISTILLATION.