摘要:
Described 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, (D) at least one catalyst (D) based on a zinc-amidine complex which is preparable by reacting one or more zinc(II) biscarboxylates with an amidine of the formula (I) or with a mixture of two or more amidines of the formula (I) and (S) at least one monomeric aromatic optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a π-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3-x) (II), and/or at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (III). Also described are multistage coating methods, and the use of the coating material compositions.
摘要:
A coating material system including components (A) to (C) and also, optionally, further components, with, in a first option, all components (A) to (C) and also, where present, the further optional components being present separately from one another, in other words the individual components not being mixed with one another. In a second option of the coating material system, conversely, the aforementioned components may also be mixed wholly or at least partly with one another. Where the components are at least partly mixed with one another, for example, component (C) is mixed with component (A), while component (B) is present separately from this mixture of (A) and (C). Optionally, component (B) may also be mixed with a portion of component (C). Furthermore, the mixtures of (A) and (C) and of (B) and (C) may additionally include at least one optional component such as a solvent, for example.
摘要:
Described are coating material compositions comprising an isocyanate group-containing component, a hydroxyl group-containing component, and a zinc (1-methylimidazole)bis(2-ethylhexanoate) complex. Also described is the use of a zinc (1-methylimidazole)bis(2-ethylhexanoate) complex as a catalyst system for the urethane reaction in coating material compositions.
摘要:
Described 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, (D) at least one catalyst (D) based on a zinc-amidine complex which is preparable by reacting one or more zinc(II) biscarboxylates with an amidine of the formula (I) or with a mixture of two or more amidines of the formula (I) and (S) at least one monomeric aromatic optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a π-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3-x) (II), and/or at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (III). Also described are multistage coating methods, and the use of the coating material compositions.
摘要:
Described 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, (D) at least one amine-blocked phosphoric acid or phosphonic acid compound as a catalyst and (S) at least one monomeric aromatic optionally substituted carboxylic acid whose carboxyl group is in conjugation with a π-electron system, wherein the component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3−x) (II), and/or at least one structural unit —N(X—SiR″x(OR′)3−x)n(X′—SiR″y(OR′)3−y)m (III). Also described are multistage coating methods, and use of the coating material compositions.
摘要:
Described are coating material compositions comprising an isocyanate group-containing component, a hydroxyl group-containing component, and a zinc (1-methylimidazole)bis(2-ethylhexanoate) complex. Also described is the use of a zinc (1-methylimidazole)bis(2-ethylhexanoate) complex as a catalyst system for the urethane reaction in coating material compositions.
摘要:
Described herein is a coating material system which includes components (A) to (C) and (K) and also, optionally, further components, where all components (A) to (C) and (K) and also, where present, the further optional components are present separately from one another or are mixed wholly or at least partly with one another. Component (A) includes at least one polyhydroxy group-containing compound, where the polyhydroxy group-containing compound of component (A) has an acid number of between 0 and 30 mg KOH/g, and component (B) includes at least one polyisocyanate-containing compound. Component (C) is a catalyst including bismuth (Bi) as metal component and at least one further metal component such as lithium (Li). Component (K) is at least one mercapto group-containing compound. Further components which may be present in the coating material system include, for example, hydroxyl-containing compounds (D), coating additives (F), pigments (H) and/or solvents (J).
摘要:
A coating material system including components (A) to (C) and also, optionally, further components, with, in a first option, all components (A) to (C) and also, where present, the further optional components being present separately from one another, in other words the individual components not being mixed with one another. In a second option of the coating material system, conversely, the aforementioned components may also be mixed wholly or at least partly with one another. Where the components are at least partly mixed with one another, for example, component (C) is mixed with component (A), while component (B) is present separately from this mixture of (A) and (C). Optionally, component (B) may also be mixed with a portion of component (C). Furthermore, the mixtures of (A) and (C) and of (B) and (C) may additionally include at least one optional component such as a solvent, for example.