公开(公告)号：DE19812557A1

公开(公告)日：1999-09-23

申请号：DE19812557

申请日：1998-03-21

Applicant: BASF AG

Inventor： HEITZ THOMAS ,  KLATT MARTIN

IPC: C08G63/78 ,  C08J3/20 ,  C08K5/103 ,  C08K13/02 ,  C08L67/02 ,  C08G63/181 ,  C08K3/34 ,  C08K5/20

Abstract: In a continuous process for the production of polyalkylene arylates (A) from aromatic dicarboxylic acids or esters etc. and aliphatic diols, lubricants (B) and nucleating agents (C) are added when the melt reaches at least 80% of the required viscosity number, after which the melt is optionally further condensed and then granulated. A continuous process for the production of polyalkylene arylates (A) containing lubricants (B) and nucleating agents (C) by (trans)esterification of aromatic dicarboxylic acids or their esters etc. with a molar excess of aliphatic dihydroxy compound, followed by polycondensation, in which the additives (B) and (C) are added to the polymer melt when it reaches at least 80% of the required viscosity number, after which the melt is optionally further condensed and then discharged, cooled and granulated.

公开(公告)号：DE102004013967A1

公开(公告)日：2005-10-06

申请号：DE102004013967

申请日：2004-03-19

Applicant: BASF AG

Inventor： LOENING JAN-MARTIN ,  HECKMANN MANFRED ,  HOELEMANN KARL ,  HEITZ THOMAS

IPC: B01D53/14 ,  C07C67/52 ,  B01D47/00 ,  C07C69/80 ,  C07C67/48

Abstract: Process for purifying and cooling a gas stream comprising a dialkyl ester A) of an aromatic dicarboxylic acid, which comprises treating the gas stream with an aliphatic dihydroxy compound B) at a temperature less than/equal to the melting point of the dialkyl ester A) in a 1st stage and treating the gas stream with an aliphatic dihydroxy compound B) at above the melting point of the dihydroxy compound B) in at least one 2nd stage.

公开(公告)号：CZ295325B6

公开(公告)日：2005-07-13

申请号：CZ20014543

申请日：2000-06-28

Applicant: BASF AG

Inventor： HEITZ THOMAS ,  KLATT MARTIN ,  NEUHAUS RALF

IPC: C08G63/183 ,  C08G63/78

Abstract: In the present invention, there is disclosed a process for the continuous production of polybutylene terephthalate from terephthalic acid and butanediol, the process comprising a) direct esterification of terephthalic acid with 1,4-butanediol in a reactor series consisting of at least two reactors; b) pre-condensation of the product of esterification obtained in step a); and c) the polycondensation of the pre-condensate obtained in the step b), wherein the reactor series in step a) is operated with a falling reaction pressure and a non-rising temperature.

公开(公告)号：PL353536A1

公开(公告)日：2003-12-01

申请号：PL35353600

申请日：2000-06-28

Applicant: BASF AG

Inventor： HEITZ THOMAS ,  KLATT MARTIN ,  NEUHAUS RALF

IPC: C08G63/183 ,  C08G63/78

Abstract: In a process for the continuous preparation of polybutylene terephthalate from terephthalic acid and 1,4-butanediol comprising:a) direct esterification of terephthalic acid with 1,4-butanediol in a reactor cascade comprising at least two reactors,b) precondensation of the esterification product obtained in stage a), andc) polycondensation of the precondensate obtained in stage b),the reaction pressure decreases and the temperature does not increase along the reactor cascade in stage a).

公开(公告)号：ES2178417T3

公开(公告)日：2002-12-16

申请号：ES99915586

申请日：1999-03-12

Applicant: BASF AG

Inventor： HEITZ THOMAS ,  KLATT MARTIN

IPC: C08G63/78 ,  C08J3/20 ,  C08K5/103 ,  C08K13/02

公开(公告)号：ES2172208T3

公开(公告)日：2002-09-16

申请号：ES98949005

申请日：1998-10-05

Applicant: BASF AG

Inventor： HEITZ THOMAS ,  BRAUNE PETER ,  FISCH HERBERT ,  PELLKOFER ERICH ,  SCHNEIDER GEORG

IPC: G02B6/44 ,  B29C47/00 ,  B29C49/00 ,  C08G63/78 ,  C08J5/00 ,  C08L67/02 ,  H01B3/42

Abstract: The invention relates to the use of thermoplastic polyester molding compounds, containing A) 80 to 100 wt. % of a polyalkylene arylate, especially polybutyleneterephthalate, with a half-width of crystallization heat releases of

公开(公告)号：MXPA01012851A

公开(公告)日：2002-07-30

申请号：MXPA01012851

申请日：2000-06-09

Applicant: BASF AG

Inventor： HEITZ THOMAS

IPC: C08G63/78 ,  C08G63/85

Abstract: En un proceso para la preparacion continua de tereftalato de polibutileno a partir de acido tereftalico y 1,4-butandiol, comprende: d) la esterificacion directa del acido tereftalico con 1,4-butandiol en una cascada de reactores que comprende al menos dos reactores. e) la precondensacion del producto de la esterificacion obtenido en la etapa a), y f) la policondensacion del precondensado obtenido en la etapa b), la temperatura decrece a lo largo de la cascada de reactores en la etapa a).

公开(公告)号：CZ20014648A3

公开(公告)日：2002-03-13

申请号：CZ20014648

申请日：2000-06-09

Applicant: BASF AG

Inventor： HEITZ THOMAS ,  KLATT MARTIN ,  NEUHAUS RALF

IPC: C08G63/78 ,  C08G63/85

Abstract: The invention relates to a method for the continuous production of polybutylene terephthalate from terephthal acid and 1,4-butane diole, comprising the following stages: a) direct esterification of terephthal acid with 1,4-butane diole in a reactor cascade of at least two reactors b) pre-condensation of the esterification product obtained in stage a), c) polycondensation of the pre-condensate obtained in stage b), whereby the temperature of the reactor cascade in stage a) is progressively decreased during its operation.

公开(公告)号：DE59802677D1

公开(公告)日：2002-02-21

申请号：DE59802677

申请日：1998-10-05

Applicant: BASF AG

Inventor： HEITZ THOMAS ,  BRAUNE PETER ,  FISCH HERBERT ,  PELLKOFER ERICH ,  SCHNEIDER GEORG

IPC: G02B6/44 ,  B29C47/00 ,  B29C49/00 ,  C08G63/78 ,  C08J5/00 ,  C08L67/02 ,  H01B3/42

Abstract: The invention relates to the use of thermoplastic polyester molding compounds, containing A) 80 to 100 wt. % of a polyalkylene arylate, especially polybutyleneterephthalate, with a half-width of crystallization heat releases of

公开(公告)号：DE59702907D1

公开(公告)日：2001-02-15

申请号：DE59702907

申请日：1997-10-16

Applicant: BASF AG

Inventor： KLATT MARTIN ,  GAREISS BRIGITTE ,  YAMAMOTO MOTONORI ,  FISCH HERBERT ,  NAM MICHAEL ,  HEITZ THOMAS ,  LEUTNER BERND

IPC: C08J5/00 ,  C08J5/18 ,  C08K5/00 ,  C08K5/10 ,  C08K5/20 ,  C08K5/3492 ,  C08K5/49 ,  C08L67/02 ,  D01F1/07 ,  D01F6/62

Abstract: Thermoplastic molding compositions compriseA) from 30 to 96% by weight of a polyesterB) from 1 to 30% by weight of melamine cyanurateC) from 1 to 30% by weight of at least one phosphorus-containing flame retardantD) from 0.01 to 5% by weight of at least one ester or amide derived from a saturated or unsaturated aliphatic carboxylic acid having from 10 to 40 carbon atoms and a saturated aliphatic alcohol or &mine having from 2 to 40 carbon atomsE) from 0 to 60% by weight of other additives and processing aidswhere the total of the percentages by weight of components A) to E) is 100%.