Amino (meth)acrylates

A radiation curable addition product that contains (meth)acrylic groups and that is prepared from:

• (i) at least one (meth)acrylated compound (A) which comprises at least one (meth)acrylated compound (A-I) that contains 3 or more (meth)acrylic ester groups per molecule;
• (ii) at least one amino compound (C) that contains one secondary amino group and no primary amino group;
• (iii) at least one amino compound (B) which comprises at least one amino compound (B1) that contains one primary amino group and at least one tertiary amino group;
• and, optionally,
• (iv) the at least one (meth)acrylated compound (A) further comprises at least one (meth)acrylated compound (A-II) that contains 2 (meth)acrylic ester groups per molecule;
• (v) the at least one amino compound (B) further comprises at least one amino compound (B2) that is selected from (B2-1) amino compounds that contain one primary amino group and/or from (B2-2) amino compounds that contain two secondary amino groups, the at least one amino compound (B2) being different from the at least one amino compound (B1),
• wherein
• the nitrogen content of the radiation curable addition product is at least 1.2 meq/g;
• the average (meth)acrylate functionality per mole of the addition product is at most 2;
• the radiation curable addition product is nonionic;
• and
• the at least one amino compound (C) is represented by the following formula:
• R′—NH—R
• wherein R′ is an alkyl, optionally substituted by hydroxy, alkoxy, tertiary amine and/or aryl, and R is an alkyl, optionally substituted by hydroxy, alkoxy, tertiary amine and/or aryl, with the proviso that R′ and R are not linked together in order to form a ring.