COATING MATERIAL COMPOSITIONS AND LOW-TEMPERATURE-CURABLE COATINGS PRODUCED THEREFROM, AND USE THEREOF

摘要

The present invention relates to a non-aqueous coating material composition comprising: (A) at least one oligomeric and/or polymeric compound (A) having at least two hydroxyl groups, (B) at least one oligomeric and/or polymeric compound (B) having at least two alkylidene-1,3-dioxolan-2-one groups, and (D) at least one catalyst (D) for crosslinking, characterized in that the compound (B) has at least two alkylidene-1,3-dioxolan-2-one groups of the formula (I'), where # is the attachment to the polymer backbone and R1 and R2 independently of one another are hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6-cycloalkyl, phenyl or phenyl-C1-C4- alkyl; R3 is hydrogen, C1-C6-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C5-C6- cycloalkyl, phenyl or phenyl-C1-C4-alkyl; A is a chemical bond or C1-C4-alkanediyl; X is O or NR7; Z is a chemical bond, PO2, SO2 or C=O; Y is a chemical bond, CH2 or CHCH3; and R7, if present, is C1-C6-alkyl. Also subjects of the present invention are the coatings produced from these coating material compositions, and their use.