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    METHOD FOR PRODUCING POLYALKYLENE ARYLATES
    32.
    发明专利
    METHOD FOR PRODUCING POLYALKYLENE ARYLATES 未知

    公开(公告)号：MY120797A

    公开(公告)日：2005-11-30

    申请号：MYPI9901042

    申请日：1999-03-19

    Applicant: BASF AG

    Inventor： HEITZ THOMAS ,  KLATT MARTIN

    IPC: C08G63/78 ,  C08J3/20 ,  C08K3/34 ,  C08K5/09 ,  C08K5/103 ,  C08K13/02 ,  C08L67/02

    Abstract: A CONTINUOUS PROCESS FOR THE PREPARATION OF POLYALKYLENE ARYLATES A) CONTAINING LUBRICANTS AND NUCLEATING AGENTS, IN WHICH AN AROMATIC DICARBOXYLIC ACID OR ESTERS OR ESTER-FORMING DERIVATIVES THEREOF ARE ESTERIFIED OR TRANSESTERIFIED WITH A MOLAR EXCESS OF AN ALIPHATIC DIHYDROXY COMPOUND AND THE (TRANS) ESTERIFICATION PRODUCT OBTAINED IS POLYCONDENSED, WHEREIN WHEN AT LEAST 80 % OF THE DESIRED VISCOSITY NUMBER HAS BEEN REACHED, LUBRICANTS B) AND NUCLEATING AGENTS C) ARE ADDED TO THE POLYMER MELT AND THE MELT IS OPTIONALLY POST-CONDENSED AND THEN DISCHARGED, COOLED AND GRA- NULATED.

    38.
    发明专利
    未知

    公开(公告)号：DE19929790A1

    公开(公告)日：2001-01-04

    申请号：DE19929790

    申请日：1999-06-29

    Applicant: BASF AG

    Inventor： HEITZ THOMAS ,  KLATT MARTIN ,  NEUHAUS RALF

    IPC: C08G63/183 ,  C08G63/78

    Abstract: The invention relates to a method for the continuous production of polybutyleneterephthalate from terephthalic acid and 1,4-butanediol, comprising the following: d) the direct esterification of terephthalic acid with 1,4-butanediol in a reactor series consisting of at least two reactors; e) the precondensation of the product of esterification obtained in step a); f) the polycondensation of the precondensate obtained in step b). The reactor series in step a) is operated with a falling reaction pressure and a non-rising temperature.

    39.
    发明专利
    未知

    公开(公告)号：DE59702544D1

    公开(公告)日：2000-11-30

    申请号：DE59702544

    申请日：1997-08-29

    Applicant: BASF AG

    Inventor： KLATT MARTIN ,  HEITZ THOMAS ,  GAREISS BRIGITTE

    IPC: C08J5/00 ,  C08K3/18 ,  C08K5/5333 ,  C08K5/5357 ,  C08K7/02 ,  C08K13/00 ,  C08L25/00 ,  C08L25/02 ,  C08L67/00 ,  C08L67/02 ,  C08L71/02 ,  C08L71/12 ,  C08L77/00

    Abstract: Thermoplastic molding compositions compriseA) from 5 to 97% by weight of a thermoplastic polymer selected from the group consisting of polyamides, polyesters, polyphenylene ethers, vinylaromatic polymers and mixtures of these,B) from 1 to 30% by weight of an alkylphosphonic acid compound of the formula I where R is alkyl having from 1 to 4 carbon atoms and x is 0 or 1,C) from 1 to 30% by weight of a synergist for B) selected from the group consisting of inorganic calcium and magnesium compounds and mixtures of these,D) from 1 to 50% by weight of a fibrous filler andE) from 0 to 40% by weight of other additives and processing aids,where the sum of the percentages by weight of components A) to E) is always 100%.

    40.
    发明专利
    未知

    公开(公告)号：AT189468T

    公开(公告)日：2000-02-15

    申请号：AT95940222

    申请日：1995-11-21

    Applicant: BASF AG

    Inventor： HEITZ THOMAS ,  HEYM MANFRED ,  MUEHLBACH KLAUS ,  PLACHETTA CHRISTOPH

    IPC: C07C267/00 ,  C08K5/29 ,  C08L67/00 ,  C08L67/02

    Abstract: PCT No. PCT/EP95/04577 Sec. 371 Date May 30, 1997 Sec. 102(e) Date May 30, 1997 PCT Filed Nov. 21, 1995 PCT Pub. No. WO96/17011 PCT Pub. Date Jun. 6, 1996Thermoplastic molding compositions comprise A) from 20 to 99% by weight of a polyester, up to 90% by weight of which may be replaced by a polycarbonate or a polyamide, B) from 0.1 to 7% by weight of a carbodiimide of the formula I Formula I where R1 are identical or different radicals selected from the group consisting of -NCO, -NHCONHR5, -NHCONR5R6 and -NHCOOR7, where R5 , R6 are identical or different and are alkyl, cycloalkyl or aralkyl, R7 is the same as R5 or is alkoxy(poly)oxyalkylene and R2 , R3 are identical or different aliphatic radicals having from 1 to 18 carbon atoms or cycloaliphatic radicals having from 5 to 15 carbon atoms or aromatic radicals having from 6 to 15 carbon atoms, R4 are identical or different aliphatic radicals having from 2 to 20 carbon atoms or halogen or alkoxy, x is an integer from 0 to 4 and n is an integer from 0 to 10, C) from 0 to 75% by weight of conventional additives and processing aids, where the sum of the percentages by weight of components A) to C) is 100%.

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