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    181.
    发明专利
    未知

    公开(公告)号：DE19731230A1

    公开(公告)日：1999-01-28

    申请号：DE19731230

    申请日：1997-07-21

    Applicant: BASF AG

    Inventor： GOTTSCHALK AXEL DR ,  GRUTKE STEFAN DR ,  PIPPER GUNTER ,  WOLF PETER DR ,  WEBER MARTIN DR

    IPC: C08L23/02 ,  C08L25/10 ,  C08L51/04 ,  C08L55/02 ,  C08L71/10 ,  C08L77/00 ,  C08L77/06 ,  C08L71/12 ,  C08L25/08 ,  C08K7/00 ,  C08J5/00 ,  C08J5/18 ,  D01F6/80 ,  C08G69/28 ,  C08G69/30

    Abstract: A moulding composition comprising: (a) 5-95 wt.% random copolyamide (I) of (a1) 95.1-99.9 wt.% component (IA) of equimolar amounts of linear aliphatic diamine(s) and linear aliphatic dicarboxylic acid(s) and (a2) 0.1-4.9 wt.% component (IB) of equimolar amounts of linear aliphatic diamine(s) and isophthalic acid; and (b) 5-95 wt.% other copolymer (II), selected from (b1) optionally modified polyarylene ether(s) (IIA), (b2) component (IIB) a mixture of 60-99 wt.% (co)polyolefin(s) (IIB.1) and 1-40 wt.% modified (co)polyolefin(s) (IIB.2) or (b3) a component (IIC) comprising 70-100 wt.% styrene-acrylonitrile (SAN), acrylonitrile-butadiene-styrene (ABS) and/or acrylonitrile-styrene-acrylic ester (ASA) polymer(s) (IIC.1) and 0-30 wt.% modified SAN, ABS or ASA polymer(s) (IIC.2). The composition may also contain: (c) 0-20 wt.% impact modifier(s), (d) 0-50 wt.% filler(s) and (e) 0-20 wt.% usual additives. Also claimed are: (i) a method of producing the composition; and (ii) mouldings, fibers, or films produced from the composition.

    Continuous preparation of poly:amide(s) from omega-amino:alkyl nitrile and water
    184.
    发明专利
    Continuous preparation of poly:amide(s) from omega-amino:alkyl nitrile and water 未知

    公开(公告)号：DE19635077A1

    公开(公告)日：1998-03-05

    申请号：DE19635077

    申请日：1996-08-30

    Applicant: BASF AG

    Inventor： WEIS ROBERT DR ,  KRAUS DIETER ,  KELLER DIETER ,  PIPPER GUNTER ,  HARDER WOLFGANG DR

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

    Abstract: A continuous multi-step process for the preparation of polyamides by reacting an w-aminoalkyl nitrile with water at high temperature and pressure, comprises (1) heating an w-aminoalkyl nitrile in an excess amount of water at 250-350 deg C and 4-30 MPa, the temperature and pressure being chosen to give a single-phase liquid reaction mixture, in which at least 95 mol.% nitrile groups are converted to form a first reaction product (I); (2) heating (I) at 220-300 deg C and 1-7 MPa, so that the pressure is at least 0.5 MPa less than that in step (1), whilst separating the gas and liquid phases to form a second reaction product (II); (3) heating (II) at 220-300 deg C and 10-300 kPa in a first sub-step (3a), then in a second sub-step (3b) the gas phase is separated from the liquid phase and then in a third sub-step (c) the relative viscosity (measured at 25 deg C and a concentration of 1 g polymer per 100 ml sulphuric acid (96 wt.%)) of the polyamide is altered to a value of 1.6-3.5 by selecting the appropriate temperature and dwell time, whilst in the final sub-step (3d) the third reaction product (III) is isolated by standard techniques and optionally processed.

    187.
    发明专利
    未知

    公开(公告)号：NO973767D0

    公开(公告)日：1997-08-15

    申请号：NO973767

    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.

    Process for the continuous production of low molecular polyamides
    190.
    发明专利
    Process for the continuous production of low molecular polyamides 未知

    公开(公告)号：AU7186594A

    公开(公告)日：1995-01-24

    申请号：AU7186594

    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.

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