摘要:
The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) having at least one carbamate group or urea group and having a lactone or hydroxy carboxylic acid moiety. The second component (b) of the coating composition is one or more of three materials. First, the second component can be a polymer resin (b)(1) comprising active hydrogen-containing functional groups reactive with the third component(c). Secondly, the second component can be a compound (b)(2) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea. Finally, the second component can be a compound (b)(3) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The third component of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.
摘要:
A process for coating microporous surfaces which have pores with a size of from 10 to 1500 nm, in which the surfaces in question are coated with at least one coating material curable thermally and with actinic radiation, after which the resulting film(s) is(are) cured thermally and with actinic radiation, wherein the coating material or at least one of the coating materials comprises (a1) at least one constituent containing (a11) on average per molecule at least two functional groups which contain at least one bond which can be activated with actinic radiation and which serves for crosslinking with actinic radiation, and, if desired, (a12) at least one isocyanate-reactive group, (a2) at least one thermally curable constituent containing at least two isocyanate-reactive groups, and (a3) at least one polyisocyanate.
摘要:
The present invention provides a curable coating composition that includes at least three components. The coating composition includes a component (a) that includes one or both of a compound (a)(1) having at least one carbamate group or terminal urea group according to the invention and having at least two linking groups that are urethane or urea or a compound (a)(2) having at least two groups selected from carbamate groups, terminal urea groups, or combinations of the two and at least four urethane or urea linking groups. The second component (b) of the coating composition includes a polymer resin comprising active hydrogen-containing functional groups reactive with the third component (c). The resins is selected from polyester, polyurethane, or polyester-polyurethane copolymers Component (c) of the coating composition is a curing agent that is reactive with the first two components. Preparation of coated articles using the compositions of the invention is also disclosed.