21.
    发明专利
    未知

    公开(公告)号:DE4404250A1

    公开(公告)日:1995-08-17

    申请号:DE4404250

    申请日:1994-02-10

    Applicant: BASF AG

    Abstract: Partly aromatic, partly crystalline, thermoplastic polyamide moulding material (I) contain (A) 40-100 wt.% of a copolyamide contg. (a1) 30-44 mole% terephthalic acid units, (2a) 6-20 mole% isophthalic acid units, (a3) 43-49.5 mole% hexamethylenediamine units and (a4) 0.5-7 mole% of units derived from 6-30C cyclic aliphatic diamines, (B) 0-50 wt.% fibrous or particulate filler, (c) 0-30 wt.% rubber-elastic polymer and (D) 0-30 wt.% normal additives and processing aids. Also claimed are moulded prods. obtd. from (I). Copolyamide (A) comprises 32-40 mole% (a1), 10-18 mole% (a2); 46-48.5 mole% (a3) and 1.5-4 mole% (a4). Pref., (A) has a triamine content of less than 0.5 wt.% and a degree of crystallinity of more than 30%. Pref. diamine (a4) is bis-(4-aminocyclohexyl)-methane (BACM) or bis-(4-amino-4-methylcyclohexyl)-methane.

    25.
    发明专利
    未知

    公开(公告)号:ES2047168T3

    公开(公告)日:1994-02-16

    申请号:ES90101788

    申请日:1990-01-30

    Applicant: BASF AG

    Abstract: Emulsifier-free aqueous polyurethane dispersions are prepared by reacting (a) dihydroxy compounds, (b) diisocyanates and (c) chain extenders to give a prepolymer having terminal isocyanate groups, then reacting the prepolymer with (d) salts of aliphatic aminocarboxylic or -sulfonic acids or amino-containing or hydroxyl-containing tertiary ammonium salts, dispersing the resulting polyurethane in water and, if required, removing the organic solvent by distillation. In the process, an organic condensation resin which is dissolved in a solvent is admixed before the polyurethane obtained is dispersed in water.

    26.
    发明专利
    未知

    公开(公告)号:DE59502670D1

    公开(公告)日:1998-08-06

    申请号:DE59502670

    申请日:1995-04-15

    Applicant: BASF AG

    Abstract: Thermoplastic moulding materials (I) contain (A) 5-95 wt.% partly aromatic, partly crystalline copolyamide, derived mainly from (a1) 30-44 mole% terephthalic acid (TPA) units, (a2) 6-20 mole% isophthalic acid (IPA) units, (a3) 43-49.5 mole% hexamethylenediamine (HDA) units and (a4) 0.5-7 mole% 6-30C aliphatic cyclic diamine units, (B) 5-95 wt.% polyphenylene ether (PPE), (C) 0-30 wt.% rubber-elastic polymer, (D) 0-45 wt.% fibrous and/or particulate filler, (E) 0-20 wt.% fire retardant and (F) 0-30 wt.% normal additives and processing aids. Also claimed are moulded prods. obtd. from (I).

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