公开(公告)号：DE3470546D1

公开(公告)日：1988-05-26

申请号：DE3470546

申请日：1984-10-12

Applicant: BASF AG

Inventor： ELBS PETER ,  JESERICH WOLFGANG-DIETER DR ,  WEHR RUDOLF DR

IPC: C08J3/00 ,  C08J3/12

Abstract: Dry polycaprolactam granules containing from 8 to 13% by weight of caprolactam and its oligomers are prepared by a method in which a caprolactam melt is extruded, the extrudates are cooled to 100 DEG -150 DEG C., left at this temperature until the polycaprolactam has substantially crystallized, and then immediately granulated, and the granules are left in a stream of inert gas, in the absence of molecular oxygen, for from 1 to 4 hours at from 100 DEG to 150 DEG C., and are then cooled.

公开(公告)号：DE3425280A1

公开(公告)日：1986-01-16

申请号：DE3425280

申请日：1984-07-10

Applicant: BASF AG

Inventor： KAEPPEL HANSHELMUT ,  LIEBSCHER MANFRED DR ,  TISCHENDORF KLAUS JUERGEN DR ,  WEHR RUDOLF DR

IPC: C08G69/16 ,  C08G69/46 ,  B01D1/22 ,  B01D1/26 ,  B01D3/26 ,  B01D11/02 ,  C08G69/14

公开(公告)号：DE3311260A1

公开(公告)日：1984-10-04

申请号：DE3311260

申请日：1983-03-28

Applicant: BASF AG

Inventor： WEHR RUDOLF DR ,  WEINFURTER KURT

IPC: C08G69/00 ,  B01D1/00 ,  C08G69/16 ,  C08G69/46

公开(公告)号：DE3160154D1

公开(公告)日：1983-05-11

申请号：DE3160154

申请日：1981-07-15

Applicant: BASF AG

Inventor： ELBS PETER ,  JESERICH WOLFGANG-DIETER DR ,  HOERAUF WERNER DR ,  WEHR RUDOLF DR

IPC: B29B9/00 ,  B29B9/04 ,  B29B9/06 ,  B29B13/06 ,  B29C47/88 ,  F26B13/30 ,  B29B3/04

公开(公告)号：DE3578429D1

公开(公告)日：1990-08-02

申请号：DE3578429

申请日：1985-07-03

Applicant: BASF AG

Inventor： KAEPPEL HANSHELMUT ,  LIEBSCHER MANFRED DR ,  TISCHENDORF KLAUS JUERGEN DR ,  WEHR RUDOLF DR

IPC: C08G69/16 ,  C08G69/46

公开(公告)号：DE3730538A1

公开(公告)日：1989-03-30

申请号：DE3730538

申请日：1987-09-11

Applicant: BASF AG

Inventor： WEHR RUDOLF DR

IPC: C08G69/14 ,  C08G69/16 ,  C08K3/22

Abstract: A TiO2-containing polycaprolactam contains, based on TiO2, less than 0.1% by weight of 100 DEG C. water solubles and from 2 to 15% by weight of monomeric caprolactam and oligomers thereof, based on polycaprolactam.

公开(公告)号：DE3461384D1

公开(公告)日：1987-01-08

申请号：DE3461384

申请日：1984-03-22

Applicant: BASF AG

Inventor： WEHR RUDOLF DR ,  WEINFURTER KURT

IPC: C08G69/00 ,  B01D1/00 ,  C08G69/16 ,  C08G69/46

公开(公告)号：DE3338294A1

公开(公告)日：1985-05-02

申请号：DE3338294

申请日：1983-10-21

Applicant: BASF AG

Inventor： ELBS PETER ,  JESERICH WOLFGANG-DIETER DR ,  WEHR RUDOLF DR

IPC: C08J3/00 ,  C08J3/12 ,  B29B1/02 ,  B29B3/00 ,  C08L77/02 ,  C08G69/46 ,  C08G69/14

Abstract: Dry polycaprolactam granules containing from 8 to 13% by weight of caprolactam and its oligomers are prepared by a method in which a caprolactam melt is extruded, the extrudates are cooled to 100 DEG -150 DEG C., left at this temperature until the polycaprolactam has substantially crystallized, and then immediately granulated, and the granules are left in a stream of inert gas, in the absence of molecular oxygen, for from 1 to 4 hours at from 100 DEG to 150 DEG C., and are then cooled.