Patent ID: 8981010
Filing Date: 2015-03-17
Classification: B29C,B33Y,C08F,C08J

Abstract:
1. A process for laser-sintering a crosslinked powder material, the process comprising: crosslinking a powder material by a Diels-Alder reaction or a hetero-Diels-Alder reaction at a temperature 1, said temperature 1 being from 0 to 80° C.; providing a crosslinked powder material in form of a powder bed; and selectively reversing the crosslinking of the powder material to an extent of at least 50% by heating the powder material at a temperature 2 said temperature 2 being higher than the temperature 1, wherein the powder material comprises a component A having at least two dienophilic double bonds and a component B at least two diene functionalities, and at least one of the components A and B has more than two of corresponding functionalities.