; —NR—(X—SiR″x(OR′)3-x) (I),and having at least one structural unit (II) of the formula (II); —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (II),where (i) the hydroxyl-containing polyacrylate and/or the hydroxyl-containing polymethacrylate have/has a glass transition temperature of less than 10° C.,(ii) the compound (B) containing isocyanate groups contains more than 10 mol % to 90 mol % of at least one structural unit of the formula (I) and 10 to less than 90 mol % of at least one structural unit of the formula (II), based in each case on the entirety of the structural units (I) and (II), and(iii) 10 to 60 mol % of the isocyanate groups of the diisocyanate and/or polyisocyanate parent structure of the compound (B) have been reacted to form the structural units of the formulae (I) and (II).;The present invention additionally provides multistage coating processes using these coating compositions, and also the use of the coating compositions as clearcoat or application of the coating process for automotive OEM finishing, the finishing of surface-mounted automotive components, and automotive refinish."/>
COATING COMPOSITIONS AND COATINGS PRODUCED FROM THEM AND FEATURING HIGH SCRATCH RESISTANCE IN ASSOCIATION WITH GOOD RESULTS IN THE ERICHSEN CUPPING TEST AND GOOD ANTISTONECHIP PROPERTIES
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COATING COMPOSITIONS AND COATINGS PRODUCED FROM THEM AND FEATURING HIGH SCRATCH RESISTANCE IN ASSOCIATION WITH GOOD RESULTS IN THE ERICHSEN CUPPING TEST AND GOOD ANTISTONECHIP PROPERTIES
COATING COMPOSITIONS AND COATINGS PRODUCED FROM THEM AND FEATURING HIGH SCRATCH RESISTANCE IN ASSOCIATION WITH GOOD RESULTS IN THE ERICHSEN CUPPING TEST AND GOOD ANTISTONECHIP PROPERTIES
The present invention relates to coating compositions comprising(A) at least one hydroxyl-containing polyacrylate and/or at least one hydroxyl-containing polymethacrylate and(B) at least one compound (B) containing isocyanate groups and having at least one structural unit (I) of the formula (I); —NR—(X—SiR″x(OR′)3-x) (I),and having at least one structural unit (II) of the formula (II); —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (II),where (i) the hydroxyl-containing polyacrylate and/or the hydroxyl-containing polymethacrylate have/has a glass transition temperature of less than 10° C.,(ii) the compound (B) containing isocyanate groups contains more than 10 mol % to 90 mol % of at least one structural unit of the formula (I) and 10 to less than 90 mol % of at least one structural unit of the formula (II), based in each case on the entirety of the structural units (I) and (II), and(iii) 10 to 60 mol % of the isocyanate groups of the diisocyanate and/or polyisocyanate parent structure of the compound (B) have been reacted to form the structural units of the formulae (I) and (II).;The present invention additionally provides multistage coating processes using these coating compositions, and also the use of the coating compositions as clearcoat or application of the coating process for automotive OEM finishing, the finishing of surface-mounted automotive components, and automotive refinish.
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机译：本发明涉及涂料组合物，其包含（A）至少一种含羟基的聚丙烯酸酯和/或至少一种含羟基的聚甲基丙烯酸酯和< / ListItem> （B）至少一种包含异氰酸酯基并且具有至少一个式（I）结构单元（I）的化合物（B） ; <？in-line-formulae description =“在线公式” end =“ lead”？>-NR-（X-SiR“ x （OR'）3- x ）（I），<？in-line-formulae description =“ In-line Formulae” end =“ tail”？> 并具有至少一个式（II）的结构单元（II） ） ; <？in-line-formulae description =“在线公式” end =“ lead”？> — N（X-SiR“ x （OR'）3- x ） n （X'-SiR'' y （OR'）3- y ） m （II） ，<？in-line-formulae description =“在线公式” end =“ tail”？> 哪里 （i）含羟基的聚丙烯酸酯和/或含羟基的聚甲基丙烯酸酯具有玻璃化转变低于10°C的温度， （ii）含异氰酸酯基的化合物（B）含有大于10 mol％至90 mol％的分别基于结构单元（I）和（II）的整体，至少一种式（I）的结构单元和10至小于90mol％的至少一种式（II）的结构单元，并且 （iii）化合物（B）的二异氰酸酯和/或多异氰酸酯母体结构中的10至60 mol％的异氰酸酯基已被反应以形成式（I）和（II）的结构单元。 ;本发明另外提供了使用这些涂料组合物的多阶段涂布方法，以及该涂料组合物作为透明涂料的用途或该涂料方法在汽车OEM涂饰，表面安装的汽车部件的涂饰和汽车修补漆中的应用。
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