DISPERSIONS OF POLYURETHANES, THEIR PREPARATION AND USE

    公开(公告)号:CA2731927A1

    公开(公告)日:2010-02-18

    申请号:CA2731927

    申请日:2009-07-30

    Applicant: BASF SE

    Abstract: The present invention relates to the use of aqueous dispersions containing a pigment (B) which is at least partially enveloped by polyurethane (A) and also at least one polymerization inhibitor (C), wherein polyurethane (A) can be obtained by reacting (a) from 15 to 70% by weight of diisocyanate or polyisocyanate which has an average of from 1 to 10 allophanate groups and an average of from 1 to 10 C-C double bonds per molecule and optionally (b) from 0 to 60% by weight of a further diisocyanate or polyisocyanate with (c) from 5 to 50% by weight of compounds having at least two groups which are capable of reacting with isocyanate, where amounts in % by weight are based on the total polyurethane (A), in printing inks.

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