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    21.
    发明专利
    未知

    公开(公告)号：ES2117309T3

    公开(公告)日：1998-08-01

    申请号：ES95100182

    申请日：1995-01-09

    Applicant: BASF AG

    Inventor： WEBER MARTIN DR ,  LEITER GERHARD ,  STREIB JURGEN DR ,  KOCH ECKHARD MICHAEL DR

    IPC: C08L21/00 ,  C08L71/00 ,  C08L71/08 ,  C08L71/10 ,  C08L81/00 ,  C08L81/06

    Abstract: Polymer blends are claimed, contg. (A) 55-99 wt.% of a copolyarylene-ether-sulphone matrix comprising (a1) 91-97 mole% units of formula (I) and (a2) 3-9 mole% units of formula (II); (B) 1-45 wt.% of a disperse phase consisting of copolyarylene-ether-sulphone contg. (b1) 91-97 mole% units (II) and (b2) 3-9 mole% units (I), (C) 0-40 wt.% impact-modifying rubber, (D) 0-60 wt.% fibrous and/or particulate fillers and (E) 0-40 wt.% processing aids and/or additives. Also claimed is (1) a process for the prodn. of these blends by mixing the components in the melt, and (2) fibres, films, coatings and moulded prods. contg. these blends, esp. cooking utensils. Pref. blend contains 60-95 wt.% (A), 5-40 wt.% (B), 0-40 wt.% (C), 0-60 wt.% (D) and 0-40 wt.% (E), or 55-98 wt.% (A), 1-44 wt.% (B), 1-20 wt.% (C) and 0-40 wt.% (E).

    23.
    发明专利
    未知

    公开(公告)号：DE19642489A1

    公开(公告)日：1998-04-16

    申请号：DE19642489

    申请日：1996-10-15

    Applicant: BASF AG

    Inventor： GOTTSCHALK AXEL DR ,  ENGELHARDT RALF ,  WEBER MARTIN DR ,  KNOLL KONRAD DR

    IPC: C08G81/02 ,  C08F297/02 ,  C08F299/00

    Abstract: A process for the preparation of graft copolymers (I) by anionic polymerisation of a polymer (A) containing an anionic chain end and a polymer (B) containing a nitrile group in a solvent is claimed. Preferably (A) is a vinyl aromatic based polymer, a block copolymer consisting of a block of vinyl aromatic monomers and a block of conjugated dienes, preferably polystyrene or polystyrene-polybutadiene. (B) is a copolymer of styrene and acrylonitrile. (B) is titrated with a solution of a organometallic compound, preferably s-butyllithium before mixing with (A) in ethyl benzene.

    25.
    发明专利
    未知

    公开(公告)号：DE19635078A1

    公开(公告)日：1998-03-05

    申请号：DE19635078

    申请日：1996-08-30

    Applicant: BASF AG

    Inventor： WEBER MARTIN DR ,  GUENTHERBERG NORBERT DR

    IPC: C08K5/521 ,  C08K13/08 ,  C08L51/00 ,  C08L69/00 ,  D01F6/92 ,  C08J5/18 ,  C08L51/04 ,  C08L25/12 ,  C08L83/04 ,  C08L33/04 ,  C08J5/00

    Abstract: The invention concerns moulding compounds comprising as essential components an aromatic polycarbonate, a graft polymer based on alkylacrylates, styrenes and unsaturated nitriles, a copolymer based on styrenes and unsaturated nitriles, a siloxane reticular rubber, a copolymer comprising at least two different esters of acrylic acid, methacrylic acid or mixtures thereof, optionally halogen-free phosphorus compounds and additives. The invention further concerns moulded bodies, foils or fibres produced from these moulding compounds.

    Fire-resistant polycarbonate moulding materials for the production of mouldings, film or fibres
    26.
    发明专利
    Fire-resistant polycarbonate moulding materials for the production of mouldings, film or fibres 未知

    公开(公告)号：DE19632675A1

    公开(公告)日：1998-02-19

    申请号：DE19632675

    申请日：1996-08-14

    Applicant: BASF AG

    Inventor： GOTTSCHALK AXEL DR ,  WEBER MARTIN DR ,  JUENGLING STEPHAN DR

    IPC: C08L25/02 ,  C08L33/12 ,  C08L51/04 ,  C08L69/00 ,  C08K5/521 ,  C08K5/523 ,  C09K21/00

    Abstract: Moulding materials (MM), containing: (A) 1-96.9 wt.% halogen-free polycarbonate; (B) 1-96.9 wt.% halogen-free graft copolymer(s), comprising: (b1) 40-80 wt.% graft base consisting of rubber-elastic polymer with a Tg of below 0 deg C; and (b2) 20-60 wt.% grafted shell consisting of: (b21) 50-95 wt.% vinylaromatic monomer of formula (I) and/or methyl methacrylate (MMA); and (b22) 5-50 wt.% (meth)acrylonitrile, MMA and/or maleic anhydride; (C) 1-96.9 wt.% halogen-free thermoplastic copolymer with Mw of less than 400,000 derived from: (c1) 50-95 wt.% monomer(s) as in (b21); and (c2) 5-50 wt.% monomer(s) as in (b22); (D) 0.1-30 wt.% halogen-free thermoplastic copolymer with Mw of at least 500,000 and a narrow mol.wt. distribution, derived from: (d1) 50-100 wt.% MMA; and (d2) 0-50 wt.% other comonomers; (E) 1-25 wt.% halogen-free phosphorus compound(s); and (F) 0-50 wt.% additives. In (I), R = H or 1-8C alkyl; R = 1-8C alkyl; and n = 0-3,

    Pigmented thermoplastic moulding composition with good toughness
    29.
    发明专利
    Pigmented thermoplastic moulding composition with good toughness 未知

    公开(公告)号：DE19542619A1

    公开(公告)日：1997-05-22

    申请号：DE19542619

    申请日：1995-11-15

    Applicant: BASF AG

    Inventor： RUPPMICH KARL ,  SEIBRING JOACHIM DR ,  WEBER MARTIN DR ,  FISCHER WOLFGANG DR

    IPC: C08L25/12 ,  C08L25/16 ,  C08L51/00 ,  C08L51/04 ,  C08L69/00 ,  C08K3/04 ,  D01F6/42 ,  D01F6/92

    Abstract: A thermoplastic moulding composition contains (A) 10-40 wt.% polycarbonate(s); (B) 5-40 wt.% graft copolymer mixture; (C) 1-60 wt.% thermoplastic copolymer of (c1) 50-80 wt.% styrene and (c2) 20-50 wt.% (meth)acrylonitrile; (D) 1-82.9 wt.% different thermoplastic copolymer of (d1) 60-90 wt.% styrene and (d2) 10-40 wt.% (meth)acrylonitrile, such that the weight fraction of (meth)acrylonitrile in (D) is less than that in (C); (E) 1-40 wt.% thermoplastic copolymer; (F) 0.1-15 wt.% carbon (C) black and/or other pigment(s); and (G) 0-30 wt.% additive(s) and/or processing aid(s). The graft copolymer mixture (B) comprises (B1) 2-98 wt.% graft copolymer of (b11) 40-80 wt.% graft substrate, (b12) 5-20 wt.% first grafted layer of vinyl-aromatic compound(s) of formula (I) and (b13) 15-40 wt.% second grafted layer and (B2) 2-98 wt.% graft copolymer of (b21) 40-80 wt.% graft substrate and (b22) 20-60 wt.% grafted layer. Grafted layers (b13) and (b22) consist of ( alpha ) 50- 95 wt.% (I) and/or methyl (meth)acrylate and ( beta ) 5-50 wt.% (meth)acrylonitrile, methyl methacrylate, maleic anhydride and/or N-(1-8C alkyl- or 6-20C aryl)-maleimide(s); and both graft substrates have a glass transition temperature (Tg) of below 10 deg C, whilst the weight average particle size of the graft copolymers is 200-700 nm for (B1) and 50-180 nm for (B2). Thermoplastic copolymer (E) comprises (e1) 50-85 wt.% alpha -methylstyrene, (e2) 15-50 wt.% acrylonitrile and (e3) 0-15 wt.% vinyl-aromatic compound of formula (II). In the formulae, R is hydrogen (H) or 1-6C alkyl; R is a 1-6C alkyl; and n = 0, 1, 2 or 3.

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