公开(公告)号：US3639359A

公开(公告)日：1972-02-01

申请号：US3639359D

申请日：1969-03-21

Applicant: STAMICARBON

Inventor： GARRITSEN JOHAN W ,  KOOIJMAN SEBASTIAAN E M ,  GREGOIRE JOHANNES H C M A ,  VERBRUGGE HENNY

IPC: C08G69/20 ,  C08G20/18

CPC classification number: C08G69/20

Abstract: A PROCESS FOR THE ANIONIC POLYMERIZATION OF LACTAMS IS DISCLOSED, WHEREIN THE LACTAMS ARE POLYMERIZED IN THE PRESENCE OF A CATALYST AND A PROMOTER, WITH THE PROMOTER BEING DI-$-CAPROLACTIM-ETHER-DIHYDROCHLORIDE OR DI-$-CAPROLACTIM-EITHER-MONOHYDROCHLORIDE, WHICH LATTER COMPOUND MAY CONTAIN UP TO 90 MOLE PERCENT OF DI-$-CAPROLACTIM-EITHER. THE PROMOTERS OF THE PRESENT INVENTION ALLOW THE POLYMERIZATION TIME TO BE REDUCED. THE POLYMERIZATION OF LACTAMS PRODUCES USEFUL POLYAMIDES.

公开(公告)号：US3448103A

公开(公告)日：1969-06-03

申请号：US3448103D

申请日：1966-02-16

Applicant: STAMICARBON

Inventor： DOESBURGH JOHAN T SEMEYNS DE V ,  VERBRUGGE HENNY

IPC: C07D223/10 ,  C07D41/06

CPC classification number: C07D223/10