Patent ID: 6777090
Filing Date: 2004-08-17
Classification: C08G,C09D,C09J,Y10T

Abstract:
A dual-cure composition curable thermally and with actinic radiation, comprisingA) at least one constituent comprising on average per molecule at least one primary or secondary carbamate group and at least one bond which can be activated with actinic radiation, which constituent is obtained by a method selected from the group consisting of method 1.1, method 1.2, method 2.1, method 2.2, and method 3, wherein method 1.1 comprises in a first process step, reacting at least one polyfunctional compound comprising at least two isocyanate-reactive, acid-reactive or epoxide-reactive functional groups with in each case at least one compound comprising an isocyanate group, acid group or epoxide groups and also at least one bond which can be activated with actinic radiation, to form an intermediate, and subsequently, in a second process step, reacting the resultant intermediate, which on average still contains at least one free isocyarlate-reactive, acid-reactive or epoxide-reactive functional group, with in each case at least one compound by means of which carbamate groups are introduced; method 1.2 comprises, in a first process step, reacting at least one polyfunctional compound comprising at least two isocyanate-reactive, acid-reactive or epoxide-reactive functional groups with in each case at least one compound by means of which carbamate groups are introduced, to form an intermediate, and subsequently, in a second process step, reacting the resultant intermediate, which on average still contains at least one free isocyanate-reactive, acid-reactive or epoxide-reactive functional group, with in each case at least one compound containing an isocyanate group, acid group or epoxide groups and also at least one bond which can be activated with actinic radiation; method 2.1 comprises in a first process step, reacting at least one polyisocyanate, polyacid or polyepoxide with in each case at least one compound comprising at least one bond which can be activated with actinic radiation and also one isocyanate-reactive, acid-reactive or epoxide-reactive functional group, to form an intermediate, and subsequently reacting the intermediate, which on average still contains at least one isocyanate group, acid group or epoxide group, in a second process step with in each case at least one compound comprising at least one carbamate group or at least one functional group which can be converted into carbamate groups, and also containing an isocyanate-reactive, acid-reactive or epoxide-reactive functional group; method 2.2 comprises in a first process step, reacting at least one polyisocyanate, polyacid or polyepoxide with in each case at least one compound comprising at least one carbamate group or at least one functional group which can converted into carbamate groups, and also an isocyanate-reactive, acid-reactive or epoxide-reactive functional group, to form an intermediate, and subsequently reacting the intermediate, which on average still contains at least one isocyanate group, acid group or epoxide group, in a second process step with in each case at least one compound comprising at least one bond which can be activated with actinic radiation and also one isocyanate-reactive acid-reactive or epoxide-reactive functional group; and method 3 comprises, reacting at least one polyisocyanate, polyacid or polyepoxide in a one-pot process with at least one Compound comprising at least one carbamate group or at least one functional group which can be converted into a carbamate group, and also one isocyanate-reactive, acid-reactive or epoxide-reactive functional group, and at least one compound comprising at least one bond which can be activated with actinic radiation and also one isocyanate-reactive, acid-reactive or epoxide-reactive functional group; and B) at least one constituent comprising on average per molecule at least one carbamate-reactive functional group.