Centre National De La Recherche Scientifique

Universite Claude Bernard—lyon

Institut National Des Sciences Appliquées Lyon 1

Elkem Silicones France

Universite Claude Bernard – Lyon1

Institut National Des Sciences Appliquees De Lyon

Elkem Silicones France Sas

Université Jean Monnet Saint-Étienne

Christophe Marquette

Jean-Marc Frances

Edwin-Joffrey Courtial

David Mariot

Clement Perrinet

Rene Fulchiron

Clément Perrinet

René Fulchiron

The present invention relates to a process for manufacturing a silicone elastomer article comprising the following step: 1) providing a composition C, comprising water and at least 20% by weight of at least one poloxamer, into a container; 2) placing the container comprising the composition C at the required temperature T1 to form a gel; 3) printing a crosslinkable silicone composition X into the gel obtained in 2) with a 3D printer at the required temperature T1; 4) optionally allowing the printed composition X to partially or totally crosslink, optionally by heating, to obtain a silicone elastomer article, into the container; 5) optionally placing the container obtained in step 4) at a temperature T3 lower than the sol-gel transition temperature of composition C; 6) recovering the silicone elastomer article; and 7) optionally washing the obtained silicone elastomer article for example with water at a temperature T3 lower than the sol-gel transition temperature of composition C.

Method for manufacturing a silicone elastomer article using a 3D printer

The invention relates to an additive manufacturing method for producing a three-dimensional elastomer silicone article. The elastomer silicone article is built up layer by layer by printing a silicone composition crosslinkable by addition reactions comprising at least one organopolysiloxane-polyoxyalkylene copolymer with a 3D printer selected from an extrusion 3D printer or a material jetting 3D printer.

Growing community of inventors

Villeurbanne, France

Christophe Marquette