| abstract |
A COATING COMPOSITION USEFUL FOR RADIATION CURING IS PREPARED THROUGH COPOLYMERIZATION OF A MIXTURE COMPRISING A VINYL MONOMER HAVING A HYDROXYL GROUP AND A,B-ETHYLENICALLY UNSATURATED CARBOXYLIC ESTER OF A MONOHYDRIC ALCOHOL, PRIMARY ESTERIFICATION OF THE HYDROXYL GROUP OF THE RESULTANT COPOLYMER WITH A POLYHYDRIC CARBOXYLIC ANYHYDRIDE IN AN ORGANIC SOLVENT, AND SECONDARY ESTERFICATION AND/OR ETHERFICATION OF CARBOXYLIC GROUP AND/OR HYDROXYL GROUP OF THE PRIMARILY ESTERFIED COPOLYMER WITH A EPOXY VINYL MONOMER. THE COATING COMPOSITION MAY FURTHER CONTAIN POLYMERIZABLE AND/OR CROSS-LINKAGE FORMABLE COMPOUNDS ACTIVE FOR RADIATION CURING, THE EXAMPLE, A COMPOUND OF THE FRMULA: CH2=C(-R10)-COO-R9-O-(CO-R8-COO-R9-O)L-CO-C(-R10)=CH2 WHEREIN R8 IS A DIVALENT GROUP HAVING 2 TO 100, R9 IS A SATURATED DIVALENT HYDROCARBON GROUP OF 2 TO 10C, R10 IS HYDROGEN ATOM OR METHYL GROUP AND 1 IS 0 OR 1 TO 10 |