中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

264 records (took 0.022 seconds)

    151.
    发明专利
    未知

    公开(公告)号：DE3831243A1

    公开(公告)日：1990-03-22

    申请号：DE3831243

    申请日：1988-09-14

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND DR ,  PIPPER GUNTER ,  GOETZ WALTER DR ,  BLINNE GERD DR ,  KNOLL MANFRED ,  BRAUNE PETER DR ,  LAUSBERG DIETRICH DR ,  BAIERWECK PETRA DR

    IPC: C08K3/00 ,  C08K3/02 ,  C08K5/00 ,  C08K7/02 ,  C08K7/14 ,  C08K7/16 ,  C08L23/08 ,  C08L23/16 ,  C08L67/02 ,  C08L69/00 ,  C08L77/00 ,  C08L77/02 ,  C08L77/06

    Abstract: Thermoplastic moulding material of the following composition (I): (A) 30 to 97 weight % of a thermoplastic polyester or polyamide or of a mixture of said polymers, whereby said polymers or their mixture have a viscosity index greater than 165; (B) 3 to 40 weight % of an olefin polymerizate, comprised of (b1) 40 to 100 weight % of at least one alpha -olefin with 2 to 8 atoms of C, (b2) 0 to 50 weight % of a diene, (b3) 0 to 45 weight % of a primary or secondary C1 to C12 acrylic acid or methacrylic acid alkylester or mixtures of such esters, (b4) 0 to 40 weight % of an ethylenically unsaturated monocarboxylic or bicarboxylic acid and/or a functional derivative of such an acid, (b5) 0 to 40 weight % of a monomer containing epoxy groups, with the provision that the component (B) is not an olefin homopolymerizate and that it has a gel content no greater than 50 %; (C) 0 to 60 weight % of fillers in fibre or particle form, or mixtures thereof; and (D) 0 to 40 % of a flame protection agent; or of the following composition (II): (A) 20 to 99 weight % of a thermoplastic polyester or polyamide or of a mixture of said polymers; (D) 1 to 40 weight % of a flame protection agent; (B) 0 to 20 % of an olefin polymerizate; and (C) 0 to 60 weight % of fillers in fibre or particle form or mixtures thereof. Said thermoplastic moulding materials can be produced by thermal treatment of mixtures of a type (A) component (component A'), whose viscosity index is lesser than 160, with the remaining components, at temperatures between 60 DEG C below and 60 DEG C above the melting point of the pure component (A).

    152.
    发明专利
    未知

    公开(公告)号：DE3820362A1

    公开(公告)日：1990-03-15

    申请号：DE3820362

    申请日：1988-06-15

    Applicant: BASF AG

    Inventor： PIPPER GUNTER ,  SIMON GEORG NIKOLAUS DR ,  HEINZ GERHARD DR ,  ITTEMANN PETER DR ,  SCHLEIER GISBERT DR

    IPC: C08G63/66 ,  C08G63/78 ,  C08G63/80

    Abstract: Process for the continuous preparation of linear thermoplastic polyesters, in which a) a transesterification or esterification product of aliphatic and/or aromatic dicarboxylic acids having a molecular weight /l, and in step c), the precondensate is further condensed at a temperature of from 240 to 290 DEG C under a pressure of from 0.5 to 20 mm Hg and a residence time of from 10 to 40 minutes, giving polyesters which are suitable for granulation.

    154.
    发明专利
    未知

    公开(公告)号：DE3306906A1

    公开(公告)日：1984-08-30

    申请号：DE3306906

    申请日：1983-02-26

    Applicant: BASF AG

    Inventor： PIPPER GUNTER ,  THEYSOHN RAINER DR ,  ZAHRADNIK FRANZ DR

    IPC: C08G69/00 ,  C08G69/16

    Abstract: Polylactams are prepared continuously by a process in which a lactam containing from 1 to 25% by weight of water is heated in a prepolymerization zone under a pressure of from 1 to 10 bar at from 220 DEG to 280 DEG C. for 1 to 10 minutes, water being vaporized at the same time, with the proviso that the degree of conversion on emergence from the prepolymerization zone is not less than 85%, the prepolymer and the vapor are separated continuously, and the prepolymer is passed into a polymerization zone and is polymerized further under superatmospheric pressure at from 240 DEG to 290 DEG C.

    METHOD FOR THE CONTINUOUS PRODUCTION OF COPOLYAMIDES BASED ON A LACTAM (I), A DIAMINE (II) AND A DICARBOXYLIC ACID (III)
    156.
    发明专利
    METHOD FOR THE CONTINUOUS PRODUCTION OF COPOLYAMIDES BASED ON A LACTAM (I), A DIAMINE (II) AND A DICARBOXYLIC ACID (III) 未知

    公开(公告)号：MY122288A

    公开(公告)日：2006-04-29

    申请号：MYPI20005088

    申请日：2000-10-31

    Applicant: BASF AG

    Inventor： DEININGER JURGEN ,  GOTZ WALTER DR ,  LUDWIG ALFONS DR ,  PIPPER GUNTER

    IPC: C08G69/04 ,  C08J5/18 ,  C08G69/00 ,  C08G69/02 ,  C08G69/14 ,  C08G69/16 ,  C08G69/26 ,  C08G69/28 ,  C08G69/36 ,  C08G69/48 ,  D01F6/80

    Abstract: A PROCESS FOR CONTINUOUS PRODUCTION OF COPOLYAMIDES BASED ON A LACTAM (I), A DIAMINE (II) AND A DICARBOXYLIC ACID (III) COMPRISES REACTING A MIXTURE (IV) COMPRISING A DIAMINE (II), A DICARBOXYLIC ACID (III) AND WATER IN A FIRST REACTION ZONE AT A PRESSURE IN THE RANGE FROM 1.3*105 TO 2.5*105 PA IN THE ENTRY ZONE OF THE REACTION ZONE AND AT A TEMPERATURE ABOVE THE MELTING POINT OF POLYMER (V) TO A CONVERSION, BASED ON THE MOLAR AMOUNTS OF DIAMINE (II) AND DICARBOXYLIC ACID (III), OF AT LEAST 80% TO FORM A POLYMER (V), REACTING A MIXTURE (VI) COMPRISING LACTAM (I) AND WATER IN A SECOND REACTION ZONE AT A PRESSURE IN THE RANGE FROM 5*105 TO 40*105 PA AND AT A TEMPERATURE ABOVE THE MELTING POINT OF POLYMER (VII) TO A CONVERSION, BASED ON THE MOLAR AMOUNT OF LAC TAM (I), OF AT LEAST 80% TO FORM A POLYMER (VII), THEN REACTING POLYMER (V) AND POLYMER (VII) WITH EACH OTHER IN A THIRD REACTION ZONE AT A PRESSURE IN THE RANGE FROM 1*105 TO 1.5*105 PA IN THE ENTRY ZONE OF THE REACTION ZONE AT TEMPERATURES ABOVE THE MELTING POINT OF POLYMER (VIII) TO FORM A POLYMER (VIII), SAID POLYMER (VIII) HAVING A 95°C WATER EXTRACTABLES CONTENT, BASED ON LACTAM (I), DIAMINE (II) AND DICARBOXYLIC ACID (III), OF NOT MORE THAN 10% BY WEIGHT, AND THEN EXTRACTING THE POLYMER (VIII) WITH WATER TO OBTAIN THE COPOLYAMIDE.

    Process for preparing polyamides from aminonitriles and polyamide prepared in such a manner
    159.
    发明专利
    Process for preparing polyamides from aminonitriles and polyamide prepared in such a manner 未知

    公开(公告)号：CZ293844B6

    公开(公告)日：2004-08-18

    申请号：CZ67599

    申请日：1997-08-26

    Applicant: BASF AG

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

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

    Abstract: The present invention relates to a process for preparing a polyamide by reacting at least one aminonitrile with water wherein the preparation process has the following steps: /1/ at least one aminonitrile is reacted with water at a temperature ranging from 100 to 360 degC and pressure in the range of 4 to 30 x 10e6 Pa, yielding a reaction mixture; /2/ the reaction mixture is further reacted at a temperature from 150 to 400 degC and pressure lower than the pressure in step 1. The temperature and pressure are selected to yield a first gaseous phase and a first liquid or solid phase or a mixture of a first solid and a first liquid phase. The first gaseous phase is separated from the first liquid or solid phase or the mixture of a first liquid and a first solid phase is separated; and /3/ the first liquid or solid phase or the mixture of a first liquid and first solid phase is mixed with a water-containing gaseous or liquid phase at a temperature from 150 to 360 degC and pressure from 0.1 do 30 x 10e6 Pa, yielding a product mixture. Also disclosed are other embodiments of this process and the thus produced polyamides.

Patent Agency Ranking