Functional materials with reversible crosslinking

Abstract

The present invention relates to an innovative method for the reversible crosslinking of, for example, adhesives or coating materials, and to a composition stable on storage at room temperature for implementing this crosslinking reaction. The reversible crosslinking method allows very rapid crosslinking even at a low first temperature, and undoing of the crosslinks at higher temperatures, thereby recovering thermoplastic processability and, for example, allowing the originally bonded substrates to be parted from one another again easily. A particular aspect here is that a plurality of cycles of crosslinking and undoing of the crosslinks are possible with the present system. A feature of the system used for the reversible crosslinking is that it consists of two components, A and B, in which component A is a compound comprising at least two protected dithioester functionalities, preferably cyanodithioester functionalities, and component B is a compound having at least two diene functionalities.

Dependencies are inferred from the claim text.