Patent ID: 7329773

Claim:
Process for producing carbamoyloxy (meth)acrylates which comprises the transesterification of an hydroxyalkyl carbamate of formula (I), (II), (III), (IV), (V), (VI) or (VII) wherein k≧2 n=0 to 2 m=0 to 2 n+m≧1 p=n or m, q=n or m, r=n or m, s=n or m, v=n or m, w=n or m (p+q)=(r+s)=(v+w)=(n+m) each R 1 , each R 2 , each R 20 is, independently, chosen from the group of hydrogen, halgen, hydroxy, alkyl, optionally substituted by hydroxy; halogen; aryl and/or aryl substituted by hydroxy, halogen or alkyl; and optionally containing from 1 to 8 ether bridges, alkenyl, optionally substituted by hydroxy; halogen; aryl and/or aryl substituted by hydroxy, halogen or alkyl; and optionally containing from 1 to 8 ether bridges, aryl, optionally substituted by hydroxy; halogen; alkyl; alkyl substituted by hydroxy, halogen and/or aryl; and/or alkyl containing from 1 to 8 ether bridges, R 3 is an alkyl, optionally substituted by hydroxy, tertiary amine and/or aryl, and optionally containing from 1 to 20 ether bridges and/or from 1 to 3 tertiary amine bridges, R 4 , R 5 , R 6 , R 12 , R 13 , R 14 , R 15 and R 16 are, independently, chosen from the group of hydrogen, and alkyl, optionally substituted by hydroxy, tertiary amine and/or aryl, and optionally containing from 1 to 8 ether bridges and/or from 1 to 3 tertiary amine bridges, with the proviso that, respectively, R 3 and R 4 , R 5 and R 6 , R 12 and/or R 13 and/or R 14 , R 15 and R 16 may be linked together in order to form a ring, R 7 , R 8 , R 9 , R 10 , R 17 and R 18 are, independently, chosen from alkylene, alkenylene, arylene and aralkylene chains which may contain from 1 to 8 ether bridges and/or from 1 to 3 tertiary amine bridges, R 11 is hydrogen or alkyl; R 19 , R 21 , R 22 , R 23 , R 25 , R 26 , R 27 and R 28 , are, independently, chosen from alkylene, alkenylene, arylene and aralkylene chains which may contain from 1 to 20 ether bridges, from 1 to 4 tertiary amine bridges, from 1 to 4—CO— bridges and/or from 1 to 4—O—CO— bridges; A is wherein R 24 is hydrogen or alkyl; with an (meth)acrylate of formula (VIII) CH 2 ═CR 29 —COOR 30 (VIII) wherein R 29 is hydrogen or methyl, and R 30 represents an alkyl group comprising from 1 to 8 carbon atoms; in an equivalent ratio of (meth)acrylate to hydroxyalkyl carbamate higher than 3.5 and in the presence of an organotitanate, an organozirconate or an organotin catalyst.