公开(公告)号：DE19808190A1

公开(公告)日：1999-09-02

申请号：DE19808190

申请日：1998-02-26

Applicant: BASF AG

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

IPC: C08G69/18 ,  C08G69/20 ,  C08L77/02

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：BR9711257A

公开(公告)日：1999-08-17

申请号：BR9711257

申请日：1997-08-26

Applicant: BASF AG

Inventor： WEISS ROBERT ,  KELLER DIETER ,  PIPPER GUNTER ,  HARDER WOLFGANG ,  LUDWIG ALFONS ,  MOHSCHLADT RALF

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/08 ,  C08G69/28 ,  C08G69/36

Abstract: A process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water at a temperature from 100 to 360° C. and a pressure from 0.1 to 35x106 Pa to obtain a reaction mixture,(2) further reacting the reaction mixture at a temperature from 150 to 400° C. and a pressure which is lower than the pressure in step 1, the temperature and the pressure being selected so as to obtain a first gas phase and a first liquid or a first solid phase or a mixture of first solid and first liquid phase, and the first gas phase is separated from the first liquid or the first solid phase or from the mixture of first liquid and first solid phase, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phase with a gaseous or liquid phase comprising water at a temperature from 150 to 360° C. and a pressure from 0.1 to 30x106 Pa to obtain a product mixture.

公开(公告)号：DE59407928D1

公开(公告)日：1999-04-15

申请号：DE59407928

申请日：1994-06-20

Applicant: BASF AG

Inventor： PIPPER GUNTER ,  KLEINKE ANDREAS ,  HILDENBRAND PETER

IPC: C08G69/14 ,  B01J19/28 ,  C08G69/04 ,  C08G69/16 ,  C08G69/46

Abstract: PCT No. PCT/EP94/01998 Sec. 371 Date Dec. 28, 1995 Sec. 102(e) Date Dec. 28, 1995 PCT Filed Jun. 20, 1994 PCT Pub. No. WO95/01389 PCT Pub. Date Jan. 12, 1995A process for the continuous production of polyamides from a mixture of at least one lactam and water and, if required, other monomer units and/or conventional additives and fillers under polyamide-forming conditions, where the mixture of the starting materials is heated in liquid phase in a first reaction zone until a conversion of at least 70% is reached, and undergoes adiabatic decompression and further polymerization in another reaction zone, wherein, in the first reaction zone, 0.5-7% by weight of water are employed, the temperature is increased to the range from 220 DEG to 310 DEG C., and polymerization is carried out until a conversion of at least 85% is reached and, in the second reaction zone, after the decompression further polymerization is carried out in the range from 215 DEG to 300 DEG C. without heat input.

公开(公告)号：ZA9707787B

公开(公告)日：1999-03-01

申请号：ZA9707787

申请日：1997-08-29

Applicant: BASF AG

Inventor： WEISS ROBERT ,  KRAUSS DIETER ,  KELLER DIETER ,  PIPPER GUNTER ,  HARDER WOLFGANG ,  LUDWIG ALFONS ,  MOHRSCHLADT RALF

IPC: C08G69/04 ,  C08G69/08 ,  C08G69/28 ,  C08G69/36 ,  C08G

CPC classification number: C08G69/04 ,  C08G69/08 ,  C08G69/28 ,  C08G69/36

公开(公告)号：CA2270230A1

公开(公告)日：1998-05-14

申请号：CA2270230

申请日：1997-10-21

Applicant: BASF AG

Inventor： PIPPER GUNTER ,  WEBER MARTIN ,  FISCH HERBERT

IPC: C08G69/16 ,  C08G69/18 ,  C08J3/09 ,  C08L23/04 ,  C08L25/04 ,  C08L71/10 ,  C08L71/12 ,  C08L77/02 ,  C08L79/08 ,  C08L101/00

Abstract: The invention concerns a process for preparing compositions containing at least one thermoplastic polymer A and at least one polyamide B by dissolving the thermoplastic polymer A in at least one lactam b and optionally further polyamide-forming monomers b, and subsequent polymerization of the monomers b. The monomers b are polymerized in the presence of between 0.001 and 5 wt % water, relative to the monomers b.

公开(公告)号：ES2103983T3

公开(公告)日：1997-10-01

申请号：ES93100178

申请日：1993-01-08

Applicant: BASF AG

Inventor： PIPPER GUNTER ,  GOETZ WALTER DR ,  CORDES CLAUS DR ,  FLOSS JOSEF GEORG DR ,  MATTERN GUENTER ,  HILDENBRAND PETER DR

IPC: C08J3/20 ,  C08J5/04

Abstract: A process for the preparation of filler-containing thermoplastic moulding compositions by mixing fillers with thermoplastics in the melt, where a) the fillers are mixed in a mixing device in the melt with a low-molecular-weight thermoplastic having a maximum melt viscosity of 30 Pas (measured at a temperature of 20 DEG C above the melting point of the thermoplastic and at a shear gradient of 1 000 s ), b) the resultant product is discharged from the mixing device, cooled and comminuted, and c) the comminuted product in the solid phase is subsequently subjected to post-condensation.

公开(公告)号：FI973358A

公开(公告)日：1997-08-15

申请号：FI973358

申请日：1997-08-15

Applicant: BASF AG

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

IPC: C08G63/60 ,  C08J9/04 ,  C08G63/66 ,  C08G63/672 ,  C08G63/91 ,  C08L3/00 ,  C08L67/00 ,  C08L101/16 ,  C09J167/00 ,  D21H19/28 ,  C08G

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.

公开(公告)号：DE19543161A1

公开(公告)日：1997-05-22

申请号：DE19543161

申请日：1995-11-18

Applicant: BASF AG

Inventor： FISCH HERBERT DR ,  PIPPER GUNTER ,  RIEGER JENS DR ,  LAUN MARTIN DR ,  WARZELHAN VOLKER DR

IPC: C08G69/48 ,  C08G69/04 ,  C08G69/28 ,  C08G69/46 ,  C08G69/06

Abstract: The production of branched polyamides (I) comprises: (i) mixing (A) 10-99.7 wt% molten polyamide prepolymer with a viscosity number (VN) of 40-90 ml/g with (B) 0.3-6 wt% poly- carboxylic acid with 3-10 free COOH groups and (C) 0-80 wt% other additives and processing aids; followed by (ii) solid-phase post- condensation. Also claimed are thermoplastic moulding materials obtained by this process. Preferably after solid-phase post-condensation, the polyamide has a VN of at least 100 ml/g. Component (B) contains 3 or 4 free COOH groups; preferred (B) is benzene-1,3,5- tricarboxylic or -1,2,4,5-tetracarboxylic acid, biphenyl- -3,5,3',5'-tetracarboxylic acid and/or naphthalene-1,3,5,7- tetracarboxylic acid. The amount of (B) used is 0.4-5.8 wt%. Component (A) consists of polyamide (PA) 66, PA 6/6T and/or PA 66/6T.

公开(公告)号：DE19513848A1

公开(公告)日：1996-10-17

申请号：DE19513848

申请日：1995-04-12

Applicant: BASF AG

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

IPC: C08J5/18 ,  C08L71/00 ,  C08L71/10 ,  C08L71/12 ,  C08L77/00 ,  C08L77/06 ,  C08L79/08 ,  D01F6/74 ,  D01F6/80 ,  D01F6/90 ,  H01B3/38

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：DE19501998A1

公开(公告)日：1996-07-25

申请号：DE19501998

申请日：1995-01-24

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 ,  C08L25/00 ,  C08L33/06 ,  D01F6/90 ,  D01F6/56 ,  D01F6/52

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).