公开(公告)号：HU0100185A2

公开(公告)日：2001-05-28

申请号：HU0100185

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 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: The disclosure is a process for preparing polyamides by concentrating the wash water extract from the extraction of polyamide to an extractables content of not more than 85% by weight, adding fresh lactam down to a water content of from 0.5 to 13% by weight, and effecting at least one adiabatic expansion during the polymerization.

公开(公告)号：ID26973A

公开(公告)日：2001-02-22

申请号：ID20001610

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：BG104459A

公开(公告)日：2001-01-31

申请号：BG10445900

申请日：2000-05-18

Applicant: BASF AG

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

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

Abstract: A process is disclosed for continuously extracting polyamide articles from a circulating extraction solution in a vertical reaction column subdivided into two zones. In the first zone the polyamide is treated with an aqueous epsilon-caprolactam solution with 15 to 40 wt. % epsilon-caprolactam as extraction agent at 100 to 140 degrees C and water is then used in the second zone as extraction agent at a temperature 5 to 40 degrees C lower. The process allows polyamides with a low monomer and oligomer content to be economically extracted. 10 claims, 1 figure

公开(公告)号：PT927212E

公开(公告)日：2000-12-29

申请号：PT97943850

申请日：1997-09-19

Applicant: BASF AG

Inventor： BAUER PETER ,  BUCHMANN BERND ,  WARZELHAN VOLKER ,  KOWITZ CHRISTOPH ,  BEIMBORN DIETER BERNHARD ,  FALLER UWE ,  LAUN MARTIN ,  PAGGA UDO ,  PIPPER GUNTER

IPC: C08J5/00 ,  C08G18/42 ,  C08G18/76 ,  C08G18/79 ,  C08G63/20 ,  C09D5/00 ,  C09D167/00 ,  C09D175/04 ,  D01F6/84 ,  D01F6/92

Abstract: PCT No. PCT/EP97/04908 Sec. 371 Date Mar. 17, 1999 Sec. 102(e) Date Mar. 17, 1999 PCT Filed Sep. 19, 1997 PCT Pub. No. WO98/12242 PCT Pub. Date Mar. 20, 1998Biodegradable polyesters based on A) 95-99.99 mol % of at least one polyester A containing as monomeric building blocks of an acid component comprising a11) 20-95 mol % of at least one aliphatic or cycloaliphatic dicarboxylic acid or its ester-forming derivative and a12) 5-80 mol % of at least one aromatic dicarboxylic acid or its ester-forming derivative and at least one dihydroxy compound or at least one amino alcohol or their mixtures, and B) 0.01-5 mol % of a mixture comprising mono-, bi-, tri-, tetra- and higher-nuclear isocyanurates or corresponding compounds containing two, three or four functional groups capable of reacting with the end groups of polyester A, or mixtures of the isocyanurates and the corresponding compounds, as well as molding compositions comprising said polyesters, their manufacture and their use in the manufacture of moldings, filsm, fibers and coatings.

公开(公告)号：CZ20001929A3

公开(公告)日：2000-11-15

申请号：CZ20001929

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 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: The disclosure is a process for preparing polyamides by concentrating the wash water extract from the extraction of polyamide to an extractables content of not more than 85% by weight, adding fresh lactam down to a water content of from 0.5 to 13% by weight, and effecting at least one adiabatic expansion during the polymerization.

公开(公告)号：ES2147918T3

公开(公告)日：2000-10-01

申请号：ES96903976

申请日：1996-02-03

Applicant: BASF AG

Inventor： WARZELHAN VOLKER ,  PIPPER GUNTER ,  SEELIGER URSULA ,  BAUER PETER ,  PAGGA UDO ,  YAMAMOTO MOTONORI

IPC: A61L15/26 ,  A61L15/62 ,  C08G63/183 ,  C08J5/00 ,  C08G63/20 ,  C08G63/60 ,  C08G63/668 ,  C08G63/672 ,  C08G63/688 ,  C08G63/91 ,  C08J9/00 ,  C08J9/04 ,  C08L67/00 ,  C08L101/16 ,  C09J167/00 ,  D21H19/28

Abstract: PCT No. PCT/EP96/00457 Sec. 371 Date Aug. 14, 1997 Sec. 102(e) Date Aug. 14, 1997 PCT Filed Mar. 5, 1996 PCT Pub. No. WO96/25446 PCT Pub. Date Aug. 22, 1996Biodegradable polyesters having a molecular weight (Mn) of from 5000 to 50,000 g/mol (measured by gel permeation chromatography), a viscosity number of from 30 to 350 g/ml (measured in 50:50 by weight of o-dichlorobenzene/phenol at a concentration of 0.5% by weight of polyester at 25 DEG C.), and a melting point of from 50 to 170 DEG C., and having both hydroxyl and carboxyl end groups, the molar ratio of carboxyl end groups to hydroxyl end groups being greater than one, which is obtained by reacting a mixture consisting essentially of a1) a mixture consisting essentially of from 45 to 80 mol % of adipic acid or ester-forming derivatives thereof, or mixtures thereof, from 20 to 55 mol % of terephthalic acid or ester-forming derivatives thereof, or mixtures thereof, and from 0 to 5 mol % of a sulfonate compound, where the sum of the individual mole percentages is 100 mol %, and a2) a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, in the presence of from 0.01 to 5 mol %, per mol of component a1), of a compound D having at least three groups capable of ester formation, the molar ratio of a1) to a2) being from 0.4:1 to 1.5:1, polymers and biodegradable thermoplastic molding compositions, processes for their preparation and their use for producing biodegradable moldings, adhesives, foams and blends with starch obtained from the polymers or molding compositions.

公开(公告)号：GR3033455T3

公开(公告)日：2000-09-29

申请号：GR20000401144

申请日：2000-05-19

Applicant: BASF AG

Inventor： GOTTSCHALK AXEL DR ,  FISCH HERBERT DR ,  PIPPER GUNTER ,  WEBER MARTIN DR

IPC: C08G69/26 ,  C08L25/04 ,  C08L33/10 ,  C08L51/04 ,  C08L55/02 ,  C08L77/00 ,  C08L77/06

Abstract: A thermoplastic moulding material (I) contains: (A) 5-94 wt.% of a partly aromatic, partly crystalline copolyamide derived from: (a1) 30-44 mole% terephthalic acid (TPA) units; (a2) 6-20 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) 5-94 wt.% ABS, ASA or SAN polymer and/or a polymer of (1-18C alkyl) (meth)acrylate; (C) 1-30 wt.% of a coupling agent contg. 0.1-10 wt.% functional monomers (w.r.t. 100 wt.% C.); (D) 0-30 wt.% of a rubber-elastic polymer; (E) 0-45 wt.% of a fibrous and/or particulate filler; and (F) 0-30 wt.% of conventional additives and processing aids. Also claimed are moulded prods. obtd. from (I).

公开(公告)号：AU2725999A

公开(公告)日：1999-09-15

申请号：AU2725999

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：CA2322033A1

公开(公告)日：1999-09-02

申请号：CA2322033

申请日：1999-02-22

Applicant: BASF AG

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

IPC: C08G69/18 ,  C08G69/20

Abstract: The invention relates to a method for producing polyamides by polymerization of lactams in the presence of metal oxides as heterogeneous catalysts. According to the invention, the metal oxides are placed inside a mold which permits mechanical separation from the reaction mixture and are removed from the reaction mixture during or after completion of the polymerization.

公开(公告)号：DK0809666T3

公开(公告)日：1999-06-28

申请号：DK96902980

申请日：1996-02-03

Applicant: BASF AG

Inventor： WARZELHAN VOLKER ,  SEELIGER URSULA ,  YAMAMOTO MOTONORI ,  BAUER PETER ,  PIPPER GUNTER ,  BEIMBORN DIETER BERNHARD

IPC: C08J9/04 ,  C08G63/60 ,  C08G63/66 ,  C08G63/672 ,  C08G63/91 ,  C08L3/00 ,  C08L67/00 ,  C08L101/16 ,  C09J167/00 ,  D21H19/28

Abstract: PCT No. PCT/EP96/00458 Sec. 371 Date Aug. 14, 1997 Sec. 102(e) Date Aug. 14, 1997 PCT Filed Feb. 3, 1996 PCT Pub. No. WO96/25448 PCT Pub. Date Aug. 22, 1996Biodegradable polymers comprising a polyether ester P1 obtained by reacting a first mixture of 20-95 mol% of adipic acid or ester-forming derivatives thereof or mixtures thereof, 5-80 mol% of terephthalic acid or ester-forming derivatives thereof or mixtures thereof, and 0-5 mol% of a compound containing sulfonate groups, and a second mixture of 15-99.8 mol% of a dihydroxy compound selected from the group consisting of C2-C6-alkanediols and C5-C10-cycloalkanediols, 85-0.2 mol% of a dihydroxy compound IHO-[(CH2)n-O]m-H(n=2, 3 or 4, m=2-250) with 0-5 mol%, based on the first mixture, of a compound D having at least three groups capable of ester formation, and a bisoxazoline C1, their preparation and their use in the manufacture of biodegradable molding materials.