The present invention relates to a radically polymerizable composition comprising a hydroxylamine ester used to manufacture color filters. The invention further relates to novel hydroxylamine esters. The invention further relates to the use of hydroxylamine esters in all liquid crystal display components requiring post-baking. The present invention relates to a radically polymerizable composition comprising: (a) at least one alkaline developable resin; (b) at least one acrylate monomer; (c) at least a photoinitiator; (d) at least one hydroxylamine ester compound of formula (I) wherein R
a
represents an acyl radical; one of R
b
and R
c
represents hydrogen and the other one represents a substituent; or R
b
and R
c
both represent hydrogen or identical or different substituents; or R
b
and R
c
together represent oxygen; or R
b
and R
c
together form a ring; R
1
-R
4
each represent C
1
-C
6
alkyl; and R
5
and R
6
each represent independently of one another hydrogen, C
1
-C
6
alkyl or C
6
-C
10
aryl; or R
5
and R
6
together represent oxygen.