Patent ID: 9085655
Filing Date: 2015-07-21
Classification: B29C,B29K,B33Y,C08G,C08J,C08L,C09D,Y10T

Abstract:
1. An aqueous radiation-curable composition comprising at least one (meth)acrylated polyurethane pre-polymer (A) obtained from the reaction of: at least one polyisocyanate compound (i), optionally, at least one polyol (ii), at least one hydrophilic compound (iii) containing at least one reactive group capable to react with isocyanate groups and which is capable to render the polyurethane pre-polymer dispersible in aqueous medium either directly or after the reaction with a neutralizing agent to provide a salt, at least one (meth)acrylated compound (iv) containing at least two reactive groups capable to react with isocyanate groups, at least one (meth)acrylated compound (v) containing essentially at least two (meth)acrylates and only one reactive group capable to react with isocyanate groups selected from poly(meth)acryloyl mono-hydroxy compounds, and optionally, at least one ethylenically unsaturated compound (B), wherein said (meth)acrylated polyurethane pre-polymer (A) comprises a total amount of (meth)acrylated groups of at least 3.0 meq of (meth)acrylated groups per g of total weight of compounds (i), (ii), (iii), (iv) and (v).