公开(公告)号：US3598797A

公开(公告)日：1971-08-10

申请号：US3598797D

申请日：1968-06-20

申请人： DAIKIN IND LTD

发明人： KOMETANI YUTAKA ,  OKUDA MASAHIRO ,  OKUNO CHUZO

IPC分类号： C08F14/22 ,  C08F3/22

CPC分类号： C08F14/22 ,  C08F2/16

摘要： A PROCESS FOR MANUFACTURING POLYVINYLIDENE FLUORIDE BY POLYMERIZATION OF VINYLIDENE FLUORIDE IN THE PRESENCE OF TERTIARY BUTYL PEROXYISOBUTYRATE AS A CATALYST. THE POLYMERIZATION REACTION OF THE PRESENT INVENTION PROCEEDS WITH A HIGHER POLYMERIZATION VELOCITY UNDER A LOWER POLYMERIZATION PRESSURE THAN THOSE POLYMERIZATIONS HITHERTO KNOWN. IT IS ALSO CHARACTERIZED IN THE FACT THAT THE POLYVINYLIDENE FLUORIDE OBTAINED BY THE PRESENT PROCESS IS SUPERIOR IN ITS PROPERTIES TO THAT HITHERTO PRODUCED.

公开(公告)号：US3642754A

公开(公告)日：1972-02-15

申请号：US3642754D

申请日：1968-08-12

申请人： DAIKIN IND LTD

发明人： KOMETANI YUTAKA ,  TATEMOTO MASAYOSHI ,  OKUDA MASAHIRO ,  OKUNO CHUZO ,  SAKATA SHINSUKE ,  OKA MASAHIKO

IPC分类号： C08F14/18 ,  C08F3/20 ,  C08F3/22 ,  C08F3/24

CPC分类号： C08F14/18 ,  C08F2/16

摘要： PROCESS FOR MANUFACTURING FLUORO-OLEFIN POLYMERS BY POLYMERIZATION OF FLUORO-OLEFINS IN THE PRESENCE OF ISOBUTYRYL PEROXIDE AS A CATALYST. THE PLYMERIZATION REACTION OF THE PRESENT INVENTION PROCEEDS WITH A HIGHER POLYMERIZATION VELOCITY AT A LOWER POLYMERIZATION TEMPERATURE TO GIVE A POLYMER OF A HIGH POLYMERIZATION DEGREE THAN THOSE PLOYMERIZATIONS HITHERTO KNOWN. IT IS ALSO CHARACTERIZED IN THE FACT THT THE FLUORO-OLEFIN POLYMERS OBTAINED BY THE PRESENT PROCESS ARE SUPERIOR IN THE PROPERTIES TO THOSE HITHERTO PRODUCED.