摘要:
Coating materials curable thermally and with actinic radiation, comprising (A) binder selected from the group consisting of random, alternating and block, linear, branched and comb polyaddition resins, polycondensation resins, and addition (co)polymers of olefinically unsaturated monomers, curable physically, thermally, with actinic radiation and thermally and with actinic radiation; and (B) from 0.2 to 20% by weight, based on the solids of the coating material, of at least one polyisocyanate which is free from blocking agents and by means of internal formation of uretdione groups is blocked up to a reelimination temperature of at least 160° C.; and their use for producing single-coat and multicoat clearcoat systems and multicoat color and/or effect paint systems or as adhesives and sealing compounds.
摘要:
A novel thixotropic agent comprising urea crystals which comprises at least one compound containing at least one functional group having at least one bond which can be activated with actinic radiation; a novel process for preparing a thixotropic agent comprising urea crystals by reacting at least one primary and/or secondary amine and/or water with at least one polyisocyanate in a liquid organic medium consisting of or comprising at least one compound containing at least one functional group having at least one bond which can be activated with actinic radiation; and the use of the thixotropic agents to prepare coating materials, adhesives and sealing compounds curable thermally and with actinic radiation.
摘要:
Multicomponent systems comprising(A) a component which contains isocyanate-reactive functional groups, is free from isocyanate groups, and contains reactive functional groups having bonds which can be activated with actinic radiation, or is free from these functional groups, and (B) a component which contains isocyanate groups, is free from isocyanate-reactive functional groups, and contains reactive functional groups having bonds which can be activated with actinic radiation, or is free from these functional groups, one of the two components, (A) or (B), containing functional groups having bonds which can be activated with actinic radiation, and component (A) comprising (L) a light stabilizer, selected from the group consisting of low molecular mass, oligomeric and polymeric light stabilizers which contain at least one isocyanate-reactive functional group and(P) a photoinitiator which contains at least one isocyanate-reactive functional group; processes for preparing them, and their use for preparing mixtures curable thermally and with actinic radiation.
摘要:
The invention relates to a coating material containing a binding agent and a cross-linking agent, in addition to a thixotropic agent, wherein said material is a mixture of silicic acids and urea and/or urea derivatives.