2.
    发明专利
    未知

    公开(公告)号:DE3682159D1

    公开(公告)日:1991-11-28

    申请号:DE3682159

    申请日:1986-09-30

    Applicant: BASF AG

    Abstract: Cellular or compact polyurethane-polyurea mouldings are prepd. by reaction of (a) organic polyisocyanates, (b) higher mol. cpds. with at least 2 reactive H, (c) aromatic diamines and opt. (d) other chain extenders and/or cross-linking agents, in presence of (e) internal realease agents, (f) catalysts, and opt. (g) blowing agents and (h) auxiliaries and/or additives, as a one-shot system, in closed moulds, by reaction injection moulding. The internal release agent (e) is (A) 0.1-10 wt.%, w.r.t. (b)-(d), a mixt. of (i) 5-80 pts. wt. of an amine and/or cyclic lactam, (ii) 20-95 pts. of a metal salt of stearic and/or isostearic acid, and (iii) 0-5 pts. of a metal salt of a mon- and/or di-carboxylic acid, and (B) 0.01-2 wt.%, w.r.t. (b)-(d) of a mono- and/or di-carboxylic acid or anhydride. The release agent is claimed.

    PROCESS FOR COVERING PLATE GLASS EDGES USING ELASTIC POLYISOCYANATE POLYADDITION PRODUCTS

    公开(公告)号:CA1255067A

    公开(公告)日:1989-06-06

    申请号:CA489520

    申请日:1985-08-28

    Applicant: BASF AG

    Abstract: PROCESS FOR COVERING PANE GLASS EDGES USING ELASTIC POLYISOCYANATE POLYADDITION PRODUCTS The invention is a process for coating with an adhesion-improving agent and covering the edges of plate glass, to be fitted to vehicle compartments, with polyurethane, polyurethane-polyurea, or polyurea elastomers. The edges of the plate are coated with one or more layers of an adhesion-improving agent to achieve a good bond between the glass and the elastomer covering. A glass plate is positioned in a mold, the mold closed, and the cavity between the glass plate and mold filled with a reactable mixture of organic polyisocyantes, higher molecular weight compounds having at least two reactive hydrogen atoms, chain extenders and/or crosslinking agents, catalysts, and optionally auxiliaries and/or additives. The reaction mixture is allowed to cure and then the plate glass is removed.

    4.
    发明专利
    未知

    公开(公告)号:DE3631842A1

    公开(公告)日:1988-03-24

    申请号:DE3631842

    申请日:1986-09-19

    Applicant: BASF AG

    Abstract: Disclosed are internal mold release agents for the preparation of molded articles using polyisocyanate addition polymerization, which are comprised of: (A) at least one ketimine, aldimine, enamine, cyclic Schiff base or a mixture of at least two of said compounds; (B) at least one metal salt of an organic carboxylic acid having from 8 to 24 carbon atoms; and (C) optionally including at least one carboxylic acid, organic sulphonic acid, mineral acid, or amidosulphonic acid, and their use in preparing molded articles comprised of polyurethane-plastics, polyurea-plastics, polyurethane-polyurea-plastics, polyurethane-polyurea-polyamide-plastics, or polyurea-polyamide-plastics.

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