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公开(公告)号:US3732250A
公开(公告)日:1973-05-08
申请号:US3732250D
申请日:1971-05-20
申请人: UNION CARBIDE CORP
IPC分类号: C07D337/04 , C07D63/06 , C07D61/00 , C07D67/00
CPC分类号: C07D337/04
摘要: THIOLACTONES HAVE BEEN PREPARED BY CONTACTING LACTONES IN THE VAPOR PHASE WITH A SULFUR CONTAINING DONOR OVER A LEWIS BASE IN AN INERT ATMOSPHERE AT A TEMPERATURE OF ABOUT 150 TO 350*C.
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公开(公告)号:US3786066A
公开(公告)日:1974-01-15
申请号:US3786066D
申请日:1970-09-11
申请人: UNION CARBIDE CORP
发明人: FRITZE P
IPC分类号: C07D337/04 , C07D67/00
CPC分类号: C07D337/04
摘要: SUBSTITUTED AND UNSUBSTITUTED E-THIOCAPROLACTONES ARE READILY PREPARED IN A TWO STEP PROCESS. IN THE FIRST STEP AN E-CAPROLACTONE AND CARBON DISULFIDE OR CARBONYL SULFIDE ARE REACTED TO AN OLIGOMER PRODUCT, AND IN THE SECOND STEP THE OLIGOMER PRODUCT UNDERGOES A BASE CATALYZED REARRANGEMENT TO FORM THE E-THIOCAPROLACTONE.
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公开(公告)号:US3755268A
公开(公告)日:1973-08-28
申请号:US3755268D
申请日:1972-06-16
申请人: UNION CARBIDE CORP
发明人: FRITZE P
IPC分类号: C08G63/688 , C08G75/26 , C08G23/00
CPC分类号: C08G75/26 , C08G63/6882
摘要: Thiolactones can be polymerized using as a catalyst, manganous or cadmium ions, in conjunction with an initiator such as water or an organic compound containing a primary hydroxyl or sulfhydryl group. They can also be copolymerized with lactones using the same catalyst/initiator system.
摘要翻译: 与引发剂如水或含有伯羟基或巯基的有机化合物联合可以使用作为催化剂,二价锰或镉离子的硫代内酯进行聚合。 它们也可以使用相同的催化剂/引发剂体系与内酯共聚。
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