摘要:
Coating compositions comprising at least one hydroxyl-containing compound (A), at least one isocyanato-containing compound (B) and at least one urea-group-containing compound (H) different from (B), compound (H) comprising at least one structural unit selected from the group consisting of a structural unit (I) a structural unit (II) a structural unit (III) —NR′″—C(O)—N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m, and combinations of two or more of the foregoing, compound (H) being obtained by reacting an isocyanato-containing compound (HG) with amino-containing compounds, wherein in compound (H) more than 90 mol % of the isocyanate groups originally present in (HG) have undergone reaction to form the structural units (I), (II), (III), or combinations thereof, where R′, R′″=hydrogen, alkyl, cycloalkyl, aryl or aralkyl; R, R″=alkyl, cycloalkyl, aryl or aralkyl; X, X′=linear and/or branched alkyl or cycloalkyl radical; x, y, n, m=0 to 2; and m+n=2.
摘要翻译:包含至少一种含羟基的化合物(A),至少一种含异氰酸酯基的化合物(B)和至少一种不同于(B)的含脲基化合物(H),化合物(H) 选自结构单元(I),结构单元(II),结构单元(III)-NR“'-C(O)-N(X-SiR''x(OR'))的结构单元 3-x)n(X'-SiR''y(OR')3-y)m,以及两种或多种上述化合物(H)的组合,其通过使含异氰酸酯基的化合物(HG)与 原料存在于(HG)中的多于90摩尔%的异氰酸酯基的化合物(H)中的氨基化合物已经发生反应,形成结构单元(I),(II),(III)或其组合, 其中R',R“'=氢,烷基,环烷基,芳基或芳烷基; R,R“=烷基,环烷基,芳基或芳烷基; X,X'=直链和/或支链烷基或环烷基; x,y,n,m = 0〜2; m + n = 2。
摘要:
Disclosed are aqueous coating compositions comprising at least one hydroxyl-containing compound (A), at least one compound (B) having isocyanate groups and also having hydrolyzable silane groups, and at least one catalyst (C)wherein the compound (B) has 10 mol % to less than 90 mol % of at least one structural unit (I) —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (I) Where R′=hydrogen, alkyl or cycloalkyl, X, X′=linear and/or branched alkylene or cycloalkylene radical having 1 to 20 carbon atoms, R″=alkyl, cycloalkyl, aryl or aralkyl, n=0 to 2, m=0 to 2, m+n=2, and x, y=0 to 2, and more than 10 to 90 mol % of at least one structural unit (II) —Z—(X—SiR″x(OR′)3-x) (II), where Z=—NH—, —NR—, —O— or —S—, where R=alkyl, cycloalkyl, aryl or aralkyl, and x, X, R′ and R″ have the definition indicated for formula (I).
摘要:
Coating compositions comprising at least one hydroxyl-containing compound (A), at least one isocyanato-containing compound (B) and at least one urea-group-containing compound (H) different from (B), compound (H) comprising at least one structural unit selected from the group consisting of a structural unit (I) a structural unit (II) a structural unit (III) —NR′″—C(O)—N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m, and combinations of two or more of the foregoing, compound (H) being obtained by reacting an isocyanato-containing compound (HG) with amino-containing compounds, wherein in compound (H) more than 90 mol % of the isocyanate groups originally present in (HG) have undergone reaction to form the structural units (I), (II), (III), or combinations thereof, where R′, R′″=hydrogen, alkyl, cycloalkyl, aryl or aralkyl; R, R″=alkyl, cycloalkyl, aryl or aralkyl; X, X′=linear and/or branched alkyl or cycloalkyl radical; x, y, n, m=0 to 2; and m+n=2.
摘要翻译:包含至少一种含羟基的化合物(A),至少一种含异氰酸酯基的化合物(B)和至少一种不同于(B)的含脲基化合物(H),化合物(H) 选自结构单元(I),结构单元(II),结构单元(III)-NR'-C(O)-N(X-SiR“x(OR')3 - )的结构单元 x)n(X'-SiR“y(OR')3-y)m和上述两种或更多种的组合,化合物(H)是通过含异氰酸酯基的化合物(HG)与含氨基的化合物 化合物,其中在(HG)中原子存在的大于90摩尔%的异氰酸酯基团的化合物(H)中已经发生反应以形成结构单元(I),(II),(III)或其组合,其中R' R'“=氢,烷基,环烷基,芳基或芳烷基; R,R“=烷基,环烷基,芳基或芳烷基; X,X'=直链和/或支链烷基或环烷基; x,y,n,m = 0〜2; m + n = 2。
摘要:
Disclosed are aqueous coating compositions comprising at least one hydroxyl-containing compound (A), at least one compound (B) having isocyanate groups and also having hydrolyzable silane groups, and at least one catalyst (C)wherein the compound (B) has 10 mol % to less than 90 mol % of at least one structural unit (I) —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (I) Where R′=hydrogen, alkyl or cycloalkyl, X, X′=linear and/or branched alkylene or cycloalkylene radical having 1 to 20 carbon atoms, R″=alkyl, cycloalkyl, aryl or aralkyl, n=0 to 2, m=0 to 2, m+n=2, and x, y=0 to 2, and more than 10 to 90 mol % of at least one structural unit (II) —Z—(X—SiR″x(OR′)3-x) (II), where Z=—NH—, —NR—, —O— or —S—, where R=alkyl, cycloalkyl, aryl or aralkyl, and x, X, R′ and R″ have the definition indicated for formula (I).
摘要:
Compositions comprising (B1) at least one polyisocyanate-group-containing compound (B1) having free or blocked isocyanate groups and a cycloaliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, and (B2) at least one polyisocyanate-group-containing compound (B2) having free or blocked isocyanate groups and an acyclic, aliphatic polyisocyanate parent structure, and/or a polyisocyanate derived therefrom, where at least one of component (B1) and component (B2) comprise at least one structural unit selected from the group of structural unit (I) —NR—(X—SiR″x(OR′)3-x) (I), structural unit (II) —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (II), and mixtures of two or more of the foregoing, wherein the compound (B1) is in an amount such that the binder fraction of the compound (B1) is between 5% and 45% by weight, based on the sum of the binder fraction of the compound (B1) and of the compound (B2), and the mixture of components (B1) and (B2) includes structural units (I) and structural units (II).
摘要:
Disclosed are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl-group-containing compound, (B) at least one polyisocyanate-group-containing compound having free or blocked isocyanate groups, and (D) at least one catalyst for the crosslinking of silane groups, where component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3-x) (I), and at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (II), wherein in component (B) (i) more than 30 mol % and less than 70 mol % of the originally present isocyanate groups have undergone reaction to form structural units (I) and (II), (ii) more than 25 and less than 36 mol % of the originally present isocyanate groups have undergone reaction to form structural units (II), and (iii) component (B) has at least one polyisocyanate group-containing compound (B2) having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure.
摘要:
The present invention relates to a coating composition comprising (d) at least one binder (A) having reactive groups, (e) at least one crosslinking agent (B) which is able to react, with crosslinking with the reactive groups of the binder (A), and at least one catalyst (C) for the crosslinking of silane groups, one or more constituents (A) and/or (B) and/or at least one further constituent of the coating composition containing hydrolyzable silane groups, wherein the catalyst (C) is a phosphoric acid compound, more particularly phosphoric acid or phosphonic acid, which is blocked with an amine having a pKb≧3 and a boiling point >100° C.
摘要:
Disclosed is a coating composition for coating polycarbonate substrates. The coating composition comprises (A) at least one radiation-curing binder, (B) nanoparticles, and (C) optionally at least one reactive diluent and/or optionally a solvent, and wherein the nanoparticles (B) comprise silicon dioxide nanoparticles, the silicon dioxide nanoparticles have a d50 of between 80 and 300 nm, and the silicon dioxide nanoparticles have a particle size distribution wherein less than 15% by weight of the particles have a size in the range of less than 80 nm, 75% to 95% by weight of the particles have a size in the range from 80 to 300 nm, 0% to 5% by weight of the particles have a size in the range from more than 300 to 1000 nm, and 0% to 5% by weight of the particles have a size in the range from more than 1000 nm to 10 000 nm.
摘要:
Disclosed are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl-group-containing compound, (B) at least one polyisocyanate-group-containing compound having free or blocked isocyanate groups, and (D) at least one catalyst for the crosslinking of silane groups, where component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3−x) (I), and at least one structural unit —N(X—SiR″x(OR′)3−x)n(X′—SiR″y(OR′)3−y)m (II), wherein in component (B) (i) more than 30 mol % and less than 70 mol % of the originally present isocyanate groups have undergone reaction to form structural units (I) and (II), (ii) more than 25 and less than 36 mol % of the originally present isocyanate groups have undergone reaction to form structural units (II), and (iii) component (B) has at least one polyisocyanate group-containing compound (B2) having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure.
摘要:
The present invention relates to a process for the coating of polycarbonate substrates, in particular of transparent polycarbonate substrates, by applying a transparent coating composition encompassing at least one radiation-curing binder resin (A) and/or reactive diluent (C), nanoparticles (B), optionally solvent and at least one light stabilizer (L), to a polycarbonate substrate, wherein the coating composition comprises at least one light stabilizer (L) which comprises, per molecule, an average of at least one ethylenically unsaturated group bonded by way of a urethane group.The present invention also relates to the coating compositions used in said process, and to the coated polycarbonate substrates obtainable via the process, and to their use.