公开(公告)号：US11098223B2

公开(公告)日：2021-08-24

申请号：US16483155

申请日：2018-02-07

Applicant: DSM IP ASSETS B.V.

Inventor： Ilse Van Casteren ,  Ronald Tennebroek ,  Gerardus Cornelis Overbeek ,  Jourraine Celestijn

IPC: C08G18/67 ,  C09D175/16 ,  C09D175/04 ,  C08G18/08 ,  C08G18/10 ,  C08G18/32 ,  C08G18/70 ,  C08G18/72 ,  C08G18/75 ,  C08G18/76 ,  C08K5/3415 ,  C08K5/57 ,  C08L75/04 ,  C08G18/34 ,  C08G18/73 ,  C09D15/00 ,  C08K5/17 ,  C08L75/16 ,  C09D175/14 ,  C08L75/14

Abstract: The present invention relates to a radiation-curable aqueous coating composition comprising a polyurethane A comprising as building blocks at least: (a) a polyisocyanate(s) containing at least two cyclic groups, (b) a non-cyclic aliphatic diisocyanate(s) whereby the non-cyclic aliphatic group connecting the two isocyanate groups has from 4 to 36 carbon atoms, and (c) a component(s) containing an isocyanate-reactive group(s), whereby the summed amount of (a) and (b) is 10 to 60 wt. %, relative to the total weight amount of components used to prepare the polyurethane A; and optionally radiation-curable diluent; whereby the weight ratio between (a) and (b) is in the range from 50:50 to 99:1; and whereby the ethylenically unsaturated bond concentration of the coating composition is in the range from 0.5 to 6 milliequivalents per g of polyurethane A and radiation-curable diluent.