Abstract: Disclosed herein is a refinish sheet produced by (1) coating one side of a temporary carrier sheet (A) with at least one aqueous coating material (B) comprising at least one free-radically crosslinkable binder (B1) having a glass transition temperature of ?70 to +50° C., an olefinically unsaturated double bond content of 2 to 10 eq/kg, and an acid group content of 0.05 to 15 eq/kg to produce at least one resultant layer (B); and (2) drying but not curing, or only part-curing, the at least one resultant layer (B) to produce at least one dried, uncured or part-cured layer (B). Also disclosed is a method of repairing a surface of a coated substrate using the refinish sheet.

Abstract: Curable mixtures free from compounds of molybdenum and of tungsten and comprising (A) at least one constituent containing blocked isocyanate groups (a1) and isocyanate-reactive functional groups (a2), and (B) at least one cesium compound; processes for preparing them, and their use.

Abstract: Coating materials curable thermally, or 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) nanoparticles selected from the group consisting of nanoparticles modified with at least one compound of the general formula I: [(S—)o-L-]n-M-(—X—R)m?n , ??(I) ?where the indices and the variables have the following meanings: S is a reactive functional group having at least one bond which can be activated with actinic radiation; L is at least one divalent organic linking group; X independently at each occurrence is an oxygen atom, sulfur atom or>NR1, where R1=hydrogen atom or alkyl group having from 1 to 4 carbon atoms; M is a metal atom; R is a monovalent organic radical; o is an integer from 1 to

Abstract: Powder slurries curable thermally and with actinic radiation and comprising solid and/or highly viscous particles dimensionally stable under storage and application conditions, including at least one binder free of carbon-carbon double bonds activatable with actinic radiation, comprising at least one (meth)acrylate copolymer containing on average per molecule at least one isocyanate-reactive functional group and at least one ion-forming group; at least one blocked and/or part-blocked polyisocyanate; and at least one olefinically unsaturated constituent which is free of isocyanate-reactive functional groups and contains on average per molecule at least one isocyanate group blocked with pyrazole or with at least one substituted pyrazole and at least two carbon-carbon double bonds which can be activated with actinic radiation, prepared by reacting at least one polyisocyanate with pyrazole and/or with at least one substituted pyrazole and also with at least one compound containing an isocyanate-reactive functiona

Abstract: The invention provides heat-curable thixotropic mixtures containing carbamate and/or allophanate groups, including at least one oligomer and/or polymer containing at least one of carbamate and allophanate groups, and at least one thixotropic agent that is a urea derivative preparable by reacting at least one amine and/or water with at least one isocyanate in the presence of at least one amino resin. The invention further provides processes for preparing the mixtures and coating materials, adhesives and sealing compounds prepared from the mixtures.

Abstract: 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.

Abstract: Process for producing a multilayer coating, in which a first coating (A) has applied to it a subsequent coating material (B) which is then cured involves selecting and/or modifying the first coating (A) and/or selecting the coating material (B) in such a way that the quotient (Q) formed from the surface energy of the second coating (B) and the surface energy of the first coating (A) is less than or equal to 1, and its use.

Abstract: The invention relates to a radiation-curable laminated sheet or film comprising at least one substrate layer and a top layer which comprises a radiation-curable material having a glass transition temperature below 50° C. and having a high double bond density and acid groups, processes for the production thereof and the use thereof.

Abstract: An integrated dual-cure coating material system which comprises two dual-cure multicomponent systems (A) and (B) which are composed predominantly or wholly of the same constituents and comprise in each case two components stored separately from one another, (I) one component containing (i.1) isocyanate-reactive functional groups and (i.2) reactive functional groups containing at least one bond which can be activated with actinic radiation, (i.3) flexibilizing structural units which as parts of three-dimensional networks lower their glass transition temperature Tg, and/or (i.4) hardening structural units which as part of three-dimensional networks raise their glass transition temperature Tg and (I1) one component containing (ii.1) free isocyanate groups, (ii.2) reactive functional groups containing at least one bond which can be activated with actinic radiation and (ii.

Abstract: Scratchproof, radiation-curable coating compositions comprising urethane (meth)acrylates, processes for preparing them, and their use.

Abstract: A method of curing free-radically curable compositions under an inert gas atmosphere, where the curing, which proceeds in accordance with a free-radical mechanism, is initiated, or initiated and maintained, in the free-radically curable compositions by radiation and the lateral escape of the inert gas atmosphere is prevented, which involves (1) immersing the free-radically curable compositions in an inert gas atmosphere below a depth from which the inert gas atmosphere constantly exhibits its lowest oxygen concentration, and (2) irradiating the free-radically curable compositions below this depth in the inert gas atmosphere, at least one of the radiation sources being arranged beneath the inert gas/air interface, and then (3) emersing the resultant cured compositions again from the inert gas atmosphere, and apparatus (1) according to FIG. 1 for its implementation.

Abstract: Powder slurries curable thermally and with actinic radiation and comprising solid and/or highly viscous particles dimensionally stable under storage and application conditions, comprising (A) a binder free of carbon-carbon double bonds activatable with actinic radiation, comprising at least one (meth)acrylate copolymer containing on average per molecule at least one isocyanate-reactive functional group and at least one ion-forming group, (B) at least one blocked and/or part-blocked polyisocyanate, and (C) at least one olefinically unsaturated constituent which is free of isocyanate-reactive functional groups and contains on average per molecule more than four carbon-carbon double bonds activatable with actinic radiation; processes for preparing them, and their use.

Abstract: Pseudoplastic aqueous dispersions comprising particles which are solid and/or of high viscosity, are dimensionally stable under storage and application conditions, are in dispersion in a continuous aqueous phase and said particles comprise surface-modified nanoparticles whose surface is covered fully or almost fully by modifying groups, processes for preparing them, and their use

Abstract: A process for producing a clearcoat and a multi-component composition. The process comprises applying the multi-component composition to a primed substrate, an unprimed substrate, or a coated substrate. The multi-component composition comprises (A) a binder containing on average at least one isocyanate-reactive functional group, (B) an adduct prepared from (b1) a diisocyanate and (b2) a compound of the general formula I containing an isocyanate-reactive group: and (C) at least one cross-linking agent containing on average at least one isocyanate group and at least one functional group which may be activated by actinic reaction.

Abstract: A coating material comprising (A) at least one kind of hydrophobic nanoparticles based on silica and (B) at least one kind of hydrophilic nanoparticles based on silica having a BET internal surface area of >300 m2/g; process for preparing it, and its use.

Abstract: Mixtures curable thermally and with actinic radiation and containing carbamate and/or allophanate groups, comprising (A) at least one of (A1) low molecular mass compounds, oligomers and polymers containing allophanate groups, carbamate groups, and carbamate and allophanate groups, and (A2) low molecular mass compounds, oligomers and polymers containing allophanate groups, carbamate groups, and carbamate and allophanate groups, and additionally allophanate- and/or carbamate-reactive functional groups, ?which are substantially or entirely free from reactive functional groups which contain at least one bond which can be activated with actinic radiation, and (C) at least one constituent containing on average per molecule at least one reactive functional group having at least one bond which can be activated with actinic radiation; with the proviso that if only (A1) is used, the mixtures further comprise (B) at least one of low molecular mass compounds, oligomers and polymers containing allophanate- and/or c

Abstract: The invention relates to a powder-slurry that can be hardened by actinic radiation or by thermal means, comprising (I) components containing functional groups (A) which render them hardenable by actinic radiation and components containing complementary functional groups (B) which render them thermally hardenable, in a weight ratio of 50:1 to 1:50 and/or comprising (II) components containing the functional groups (A) and (B) which render them thermally hardenable and hardenable by actinic radiation in a molar ratio of 100:1 to 1:100.

Abstract: A mixture and method for preparing a composition curable thermally and with actinic radiation comprising a binder free from carbon-carbon double bonds activatable with actinic radiation, at least one blocked or unblocked polyisocyanate having at least one soft, flexibilizing segment, and at least one unsaturated polyfunctional urethane that is free from isocyanate-reactive functional groups and contains on average per molecule more than four carbon-carbon double bonds activatable with actinic radiation and at least one hardening segment.

Abstract: A composition curable with actinic radiation, containing at least one compound (A) selected from the group consisting of p-menthadienes and olefinically unsaturated monomers, processes for preparing it, and the use thereof.

Abstract: 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.