Polyvalor, Limited Partnership

Daniel Therriault

Gilles L'Esperance

Louis Laberge Lebel

Tao Rui

Kambiz Chizari

Arslane Bouchemit

Chao Xu

Sampada Bodkhe

Frédérick Gosselin

There is provided a piezoelectric composite comprising a piezoelectric polymer and particles of a filler dispersed in the polymer, wherein the filler is in micro or nanoparticle form and is present in a filler:polymer weight ratio between about 1:99 and about 95:5. There is also provided an ink and ink cartridge for 3D printing of the piezoelectric composite. There is also provided a piezoelectric 3D printed material comprising the piezoelectric composite and a bifunctional material comprising the piezoelectric composite with one or more conductive electrodes adjacent to the piezoelectric composite. Methods of manufacture and uses thereof are also provided, including methods for 3D printing of a piezoelectric 3D printed material via solvent-cast or FDM 3D printing starting from the piezoelectric composite and/or the ink.

Piezoelectric composite, ink and ink cartridge for 3D printing, bifunctional material comprising the piezoelectric composite, manufacture and uses thereof

A metallic ink for solvent-cast 3D printing, the ink comprising a solution or a gel of a polymer in a volatile solvent, and heat-sinterable metallic particles dispersed in the solution or gel, wherein the particles are present in a particles:polymer weight ratio of more than about 85:15, is provided. There is also provided a method of manufacturing this ink and a method of manufacturing a solvent-cast metallic 3D printed material using this ink.

Metal 3D printing method and metallic 3D printed materials

An ink for solvent-cast 3D printing is provided. The ink comprises a solution or gel of a polymer in a volatile solvent, and carbon nanotubes dispersed in the solution or gel. In the ink, the carbon nanotubes are present in a carbon nanotubes:polymer weight ratio between about 20:80 and about 40:60, and the polymer and carbon nanotubes total concentration is between about 20 and about 35 wt %, based on the total weight of the ink. There is also provided a 3D printer ink cartridge comprising the ink; a method of manufacturing the ink; a method of manufacturing a solvent-cast 3D printed material using the ink, a solvent-cast 3D printed material as well as uses thereof.

Electrically conductive ink for solvent-cast 3D printing

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St-Laurent, Canada

Daniel Therriault