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：CA1232397A

公开(公告)日：1988-02-02

申请号：CA465907

申请日：1984-10-19

Applicant: BASF AG

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

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 100-150.degree.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 to 150.degree.C, and are then cooled.

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.

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