Pseudothermoplastic, self-crosslinking composites

摘要

In the present process, reversibly crosslinking composites or storage-stable prepregs are produced by means of a hetero Diels-Alder reactions (HDA,) for example of PMMA polymers. At slightly elevated temperature, these prepregs can be reversibly decrosslinked again by a retro hetero Diels-Alder reaction so that they become moldable. The back-reaction to products which are again crosslinked or high molecular weight then takes place at room temperature.

主权项

1. A kit, comprising:
A) a fibrous carrier; B) a first reactive component, having at least two dienophilic double bonds, wherein the dienophilic double bonds are carbon-sulfur double bonds; and C) a second reactive component having at least two diene functionalities, wherein the first reactive component, the second reactive component, or both, has more than two of the respective functionalities, and the first and the second reactive components are crosslinkable to one another by means of a Diels-Alder or a hetero Diels-Alder reaction.