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    Nanocapsules as Thermolatent Polymerization Catalysts or Initiators
    96.
    发明申请
    Nanocapsules as Thermolatent Polymerization Catalysts or Initiators 审中-公开

    公开(公告)号：US20180305492A1

    公开(公告)日：2018-10-25

    申请号：US15949180

    申请日：2018-04-10

    申请人： Henkel AG & Co. KGaA ,  Max-Planck-Gesellschaft Zur Foerderung Der ...

    发明人： Andreas Taden ,  Ann-Christin Bijlard ,  Anne Hansen ,  Katharina Landfester

    IPC分类号： C08G18/24 ,  C08F20/12 ,  C08K5/103 ,  C08L75/14

    CPC分类号： C08G18/244 ,  B01J13/185 ,  B82Y30/00 ,  C08F20/12 ,  C08G18/246 ,  C08G18/36 ,  C08G18/792 ,  C08K5/103 ,  C08L75/14 ,  C08L2205/18

    摘要： The invention relates to a method for producing special nanocapsules, which can be used as thermolatent polymerization catalysts, in particular for the polarization of polyurethanes, by means of a high shear process, wherein the method comprises: (i) emulsification of a reaction mixture into a continuous aqueous phase comprising at least one stabilizer, wherein the reaction mixture comprises, based on the total weight of the reaction mixture: (a) 10.0 to 99.0 wt. % of a monomer mixture which comprises, based on the total weight of the monomer mixture: (a1) 2.5 to 19.0 wt. % of at least one simply ethylenically unsaturated C3-5-carboxylic acid monomer; (a2) 76.0 to 97.5 wt. % of at least one simply ethylenically unsaturated C3-5-carboxylic acid-C1-10-alkyl ester monomer; (a3) 0.0 to 5.0 wt. % of at least one monomer which bears at least two ethylenically unsaturated groups; (b) 1.0 to 70.0 wt. % of at least one polymerization catalyst or initiator; (c) 0.0 to 89.0 wt. % of at least one hydrophobic release agent, wherein the release agent preferably has a Hansen parameter ∂t of less than 20; and (d) 0.0 to 10.0 wt. % of at least one ultrahydrophobic compound which is different from the release agent; (ii) optionally homogenizing the emulsion from step (i); and (iii) polymerizing the monomers. The invention further relates to the nanocapsules produced by means of the described methods, to the use thereof, and to agents which contain these nanocapsules.