Production of polyimides
    43.
    发明专利

    公开(公告)号:GB1069760A

    公开(公告)日:1967-05-24

    申请号:GB3587964

    申请日:1964-09-02

    Applicant: BASF AG

    Abstract: Polyimides are prepared by reacting 1 mole of 3,6-endoethyleno - 1,2,4,5 - cyclohexane tetracarboxylic dianhydride with 1.5 to 2.5 moles of aliphatic and/or aromatic diamines, e.g. propylene, hexato nona-methylene, on m- or pphenylene diamine, toluidine or anisidine. Reaction may be effected in the presence of an inert gas, e.g. nitrogen or carbon dioxide, or solvent, e.g. xylenol or alpha-chloronaphthalene. The products may be used for the production of fibres, coatings or building materials, e.g. bricks or tiles.

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