BULK POLYMERISATION PROCESS

摘要

BULK POLYMERISATION PROCESS A b s t r a c t Ethylenically unsaturated monomers are polymerized in bulk in the presence of from 0 to 10 % by weight of a photoinitiator by irradiation of UV lighta) in a first reaction stage at or below the boiling point of the reaction mixture, up to a conversion of 40 - 80 % by weight, andb) in a second reaction stage, at a temperature which has been raised by from 20 to 120.degree.C and is above the glass transition temperature of the resulting polymer, up to a conversion of above 90 % by weight, the percentages in each case relating to the total amount of monomer.