摘要:
The present invention provides nonaqueous coating material compositions, multistage coating processes and also the use of the coating material compositions, comprising (A) at least one polyhydroxyl-group-containing compound, (B1) at least one polyisocyanate-group-containing compound (B1) having free or blocked isocyanate groups and having a cycloaliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, (B2) at least one polyisocyanate-group-containing compound (B2) having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, (D) at least one catalyst for the crosslinking of silane groups, and (R) at least one rheological assistant (R) based on fumed silica, where component (B1) and/or component (B2) comprise at least one structural unit —NR—(X—SiR″x(OR′)3-x) (I), and/or at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (II).
摘要:
Provided is a coating composition comprising at least one hydroxyl-containing compound (A), at least one compound (B1) having at least one silane group of the formula (I) —X—Si—R″xG3-x (I) with G=identical or different hydrolyzable groups, X=organic radical, more particularly linear and/or branched alkylene or cycloalkylene radical having 1 to 20 carbon atoms, R″=alkyl, cycloalkyl, aryl or aralkyl, it being possible for the carbon chain to be interrupted by nonadjacent oxygen, sulfur or NRa groups, with Ra=alkyl, cycloalkyl, aryl or aralkyl, x=0 to 2, and at least one compound (B2) different from the component (B1) and which is prepared from a linear aliphatic diisocyanate (DI), (B2) comprising uretidone groups and at least 2 isocyanate groups per molecule.
摘要翻译:提供包含至少一种含羟基的化合物(A),至少一种具有至少一个式(I)-X-Si-R''xG3-x(I)的硅烷基的化合物(B1) G =相同或不同的可水解基团,X =有机基团,更特别是具有1至20个碳原子的直链和/或支链亚烷基或亚环烷基,R“=烷基,环烷基,芳基或芳烷基,可能为碳 链被不相邻的氧,硫或NR a基团中断,其中R a =烷基,环烷基,芳基或芳烷基,x = 0至2,以及至少一种不同于组分(B1)的化合物(B2) 线性脂肪族二异氰酸酯(DI),(B2),每分子含有脲基酮基和至少2个异氰酸酯基。
摘要:
The present invention relates to a multicoat effect and/or color paint system, a method for producing the multicoat paint system, and also the use thereof. The transparent coating material composition comprises at least one rheological assistant (R) based on fumed silica and comprises a polyisocyanate group-containing component (B) which additionally has at least one structural unit of the formula (I) and/or at least one structural unit of the formula (II).
摘要:
The present invention relates to a multicoat effect and/or color paint system, a method for producing the multicoat paint system, and also the use thereof. The transparent coating material composition comprises at least one rheological assistant (R) based on fumed silica and comprises a polyisocyanate group-containing component (B) which additionally has at least one structural unit of the formula (I) and/or at least one structural unit of the formula (II).
摘要:
The present invention provides nonaqueous coating material compositions, multistage coating processes and also the use of the coating material compositions, comprising (A) at least one polyhydroxyl-group-containing compound, (B1) at least one polyisocyanate-group-containing compound (B1) having free or blocked isocyanate groups and having a cycloaliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, (B2) at least one polyisocyanate-group-containing compound (B2) having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, (D) at least one catalyst for the crosslinking of silane groups, and (R) at least one rheological assistant (R) based on fumed silica, where component (B1) and/or component (B2) comprise at least one structural unit —NR—(X—SiR″x(OR′)3-x) (I), and/or at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (II).