公开(公告)号：US3585171A

公开(公告)日：1971-06-15

申请号：US3585171D

申请日：1968-06-27

Applicant: BASF AG

Inventor： STEINHOFER ADOLF ,  PATSCH MANFRED ,  DOERFEL HELMUT ,  FALKENSTEIN GEORG ,  JESTERICH WOLFGANG-DIETER

IPC: C08G69/20 ,  C08G20/18

CPC classification number: C08G69/20

Abstract: A PROCESS FOR ACCELERATING POLYMERIZATION OF LACTAMS CARRIED OUT IN THE PRESENCE OF ALKALINE CATALYSTS AT TEMPERATURES OF FROM 80* TO 200*C. USING LACTAM-N-CARBOXYLIC ACID CARBAZOLAMIDES AS ACTIVATORS.

公开(公告)号：US3703595A

公开(公告)日：1972-11-21

申请号：US3703595D

申请日：1970-04-20

Applicant: BASF AG

Inventor： FALKENSTEIN GEORG ,  PEINE HANS GEORG ,  DOERFEL HELMUT ,  RAFF PAUL ,  SCHUSTER LUDWIG

IPC: C08G69/26 ,  C08G20/20

CPC classification number: C08G69/26

Abstract: GLASS-CLEAR POLYAMIDES CONSISTING ESSENTIALLY OF POLYMERIC CONDENSATION PRODUCTS OF A MIXTURE OF STEREOISOMERS OF 2,2-BIS-(4-AMINOCYCLOHEXYL)-PROPANE AQND AN ALIPHATIC OR CARBOXYCLIC DICARBOXYLIC ACID HAVING SIX TO TEN CARBON ATOMS AND, IF DESIRED, CAPROLACTAM OR ADIPIC ACID AND HEXAMETHYLENE-DIAMINE. THE POLYAMIDES ARE USEFUL FOR THE PRODUCTION OF MOLDINGS.

公开(公告)号：US3903126A

公开(公告)日：1975-09-02

申请号：US42371573

申请日：1973-12-11

Applicant: BASF AG

Inventor： WOERNER FRANK P ,  POHLEMANN HEINZ ,  DOERFEL HELMUT ,  FALKENSTEIN GEORG

IPC: C07C275/62 ,  C08G18/78 ,  C08G18/80 ,  C07C119/04

CPC classification number: C08G18/7831 ,  C07C275/62 ,  C07C2601/14 ,  C08G18/8038

Abstract: Biuret group-containing polyisocyanates are produced by reacting aliphatic and/or cycloaliphatic diamines with polyisocyanates.

Abstract translation: 通过使脂族和/或脂环族二胺与多异氰酸酯反应制备含缩脲基的多异氰酸酯。

公开(公告)号：US3621001A

公开(公告)日：1971-11-16

申请号：US3621001D

申请日：1968-07-08

Applicant: BASF AG

Inventor： STEINHOFER ADOLF ,  DOERFEL HELMUT ,  FALKENSTEIN GEORG ,  JESERICH WOLFGANG-DIETER ,  REICHEL BERND

IPC: C08G69/20 ,  C08G20/18

CPC classification number: C08G69/20

Abstract: A process for accelerating the base catalyzed polymerization of lactams carried out at temperatures of 80* to 200* C. using N,N'' -disubstituted arylenedicarbamoyl lactams as activators.

公开(公告)号：US3562221A

公开(公告)日：1971-02-09

申请号：US3562221D

申请日：1968-01-15

Applicant: BASF AG

Inventor： STEINHOFER ADOLF ,  DOERFEL HELMUT ,  FALKENSTEIN GEORG ,  JESERICH WOLFGANG-DIETER

IPC: C08G69/20 ,  C08G20/00

CPC classification number: C08G69/20

Abstract: A PROCESS FOR ACCELERATING ANIONIC POLYMERIZATION OF LACTAMS IN THE PRESENCE OF ALKALINE POLYMERIZATION CATALYSTS AND ACTIVATORS AT FROM 80* TO 200*C. IN THE PRESENCE OR ABSENCE OF INERT SOLVENTS, IN WHICH N-(N'',N''-DIPHENYLCARBAMOYL)-LACTAMS HAVING FOUR TO THIRTEEN MEMBERS IN THE LACTAM RING ARE USED AS ACTIVATORS.