公开(公告)号：TR200201445T2

公开(公告)日：2002-12-23

申请号：TR200201445

申请日：2000-11-29

Applicant: BASF AG

Inventor： LUDWIG ALFONS ,  PILLE RANGHILD ,  PIPPER GUNTER

IPC: B29B13/06 ,  F26B17/12 ,  F26B21/14

公开(公告)号：SI1056799T1

公开(公告)日：2002-10-31

申请号：SI9830194

申请日：1998-11-24

Applicant: BASF AG

Inventor： HUENGER HANS-HARALD ,  LUDWIG ALFONS ,  NEUBERG RAINER ,  PIPPER GUNTER ,  SAUER THOMAS ,  WILMS AXEL

IPC: C08G69/14 ,  C08G69/46

公开(公告)号：DE59609567D1

公开(公告)日：2002-09-26

申请号：DE59609567

申请日：1996-04-03

Applicant: BASF AG

Inventor： WEBER DR ,  FISCH DR ,  PIPPER GUNTER ,  GOTTSCHALK DR

IPC: C08J5/18 ,  C08L71/00 ,  C08L71/10 ,  C08L71/12 ,  C08L77/00 ,  C08L77/06 ,  C08L79/08 ,  D01F6/74 ,  D01F6/80

Abstract: Thermoplastic moulding materials (I) contg. (A) 1-99 wt% partly aromatic copolyamide contg. (a1) 30-44 mole% terephthalic acid (TPA) units, (a2) 6-25 mole% isophthalic acid (IPA) units, (a3) 43-49.5 mole% hexamethylenediamine (HMDA) units and (a4) 0.5-7 mole% units derived from 6-30C cyclic aliphatic diamines; (B) 1-99 wt% polyether-imide; (C) 0-30 wt% polymeric component with OH gps.; (D) 0-60 wt% fibrous and/or particulate fillers; (E) 0-40 wt% impact modifying rubber; and (F) 0-40 wt% conventional additives, etc.. Also claimed are fibres, films and moulded prods. obtd. from (I).

公开(公告)号：BR9815006A

公开(公告)日：2002-09-24

申请号：BR9815006

申请日：1998-11-24

Applicant: BASF AG

Inventor： HILDENBRAND PETER ,  LANG REINHARD ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B29B9/16 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles in an essentially vertical extraction column using an aqueous extractant comprises using an extraction column that is divided into two zones and performing an extraction with a recirculating 15-40% strength by weight aqueous epsi-caprolactam solution in the first zone and then with countercurrent water at a from 5 to 40° C. lower temperature in the second zone. The process provides for economical extraction of polyamides with a low level of monomers and oligomers.

公开(公告)号：ES2172307T3

公开(公告)日：2002-09-16

申请号：ES99907560

申请日：1999-02-22

Applicant: BASF AG

Inventor： MOHRSCHLADT RALF ,  HILDEBRANDT VOLKER ,  PIPPER GUNTER ,  FUCHS EBERHARD

IPC: C08G69/18 ,  C08G69/20

Abstract: In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of or on completion of the polymerization.

公开(公告)号：TR200001512T2

公开(公告)日：2002-08-21

申请号：TR200001512

申请日：1998-11-24

Applicant: BASF AG

Inventor： ERBES JOERG ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of epsi-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.

公开(公告)号：PL342688A1

公开(公告)日：2001-07-02

申请号：PL34268899

申请日：1999-02-22

Applicant: BASF AG

Inventor： MOHRSCHLADT RALF ,  HILDEBRANDT VOLKER ,  PIPPER GUNTER ,  FUCHS EBERHARD

IPC: C08G69/18 ,  C08G69/20

Abstract: In a process for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts, the metal oxides are used in a form which permits mechanical removal from the reaction mixture and are removed from the reaction mixture in the course of or on completion of the polymerization.

公开(公告)号：AU5437601A

公开(公告)日：2001-06-12

申请号：AU5437601

申请日：2000-11-29

Applicant: BASF AG

Inventor： LUDWIG ALFONS ,  PILLE RAGNHILD ,  PIPPER GUNTER

IPC: B29B13/06 ,  F26B17/12 ,  F26B21/14

公开(公告)号：HU0100191A2

公开(公告)日：2001-05-28

申请号：HU0100191

申请日：1998-11-24

Applicant: BASF AG

Inventor： HILDENBRAND PETER ,  LANG REINHARD ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: B29B9/16 ,  C08J3/12 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles in an essentially vertical extraction column using an aqueous extractant comprises using an extraction column that is divided into two zones and performing an extraction with a recirculating 15-40% strength by weight aqueous epsi-caprolactam solution in the first zone and then with countercurrent water at a from 5 to 40° C. lower temperature in the second zone. The process provides for economical extraction of polyamides with a low level of monomers and oligomers.

公开(公告)号：PL341685A1

公开(公告)日：2001-04-23

申请号：PL34168598

申请日：1998-11-24

Applicant: BASF AG

Inventor： ERBES JOERG ,  LUDWIG ALFONS ,  PIPPER GUNTER

IPC: C08J3/12 ,  B01D11/02 ,  B29B9/16 ,  C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: A process for continuous extraction of polyamide particles using a recirculating extractant in a vertical extraction column that is divided into two zones comprises treating the polyamide with an aqueous extractant comprising from 40 to 95% by weight of epsi-caprolactam in a first zone at from 100 to 140° C., and then effecting an aftertreatment with water in a second zone. The caprolactam can then be extracted in a conventional manner. The process provides for economical production of polyamide having a low dimer content.