| 主权项 |
1. A curable composition comprising:
a) at least one blocked amine BA having a blocked, hydrolytically activatable amino group and either at least one additional blocked, hydrolytically activatable amino group or at least one reactive group R selected from the group consisting of a hydroxyl group, mercapto group and a secondary amino group; and b) at least one surface-deactivated polyisocyanate DI that is solid at room temperature, wherein the blocked amine BA is an aldimine BA2 of a formula (I), where n represents 1 or 2 or 3 or 4, and m represents 0 or 1, provided that m+n represents 2 or 3 or 4; and where A represents either an m+n-valent hydrocarbon moiety having from 2 to 30 C atoms, or together with R7 represents an (n+2)-valent hydrocarbon moiety having from 3 to 30 C atoms; X represents O or S or N—R6 or N—R7,
where R6 either represents a monovalent hydrocarbon moiety having from 1 to 20 C atoms,or a substituent of the formula (II), whereE represents a divalent hydrocarbon moiety having from 2 to 12 C atoms, andR7 together with A represents an (n+2)-valent hydrocarbon moiety having from 3 to 30 C atoms; and Z is free from reactive groups R and primary amino groups and
either represents a moiety Z1 of the formula (III), whereY represents a monovalent hydrocarbon moiety having from 1 to 32 C atoms formed as ether, carbonyl, ester, amido, urea, urethane or tertiary amino groups, andR1 and R2 eitherindependently of each other each represent a monovalent hydrocarbon moiety having from 1 to 12 carbon atoms,or together represent a divalent hydrocarbon moiety having from 4 to 12 carbon atoms,or represents a moiety Z2,
where Z2 either represents a substituted or unsubstituted aryl or heteroaryl ring having a ring size of from 5 to 8,or represents where R0 represents a hydrogen atom or an alkoxy moiety or a substituted or unsubstituted alkenyl or arylalkenyl moiety having at least 6 C atoms. |
