UniversitÈ Laval

Universitéde Montreal

Alcoa USA Corp.

Gaétan Laroche

Donald P Ziegler

Christian Sarra-Bournet

Diego Mantovani

Pascale Chevalier

Ivan Rodriguez Duran

Luc Stafford

Julien Vallade

Antoine Durocher-jean

Jacopo Profili

Nicolas Gherardi

Raphaël Cozzolino

Ramzi Ishak

Houshang Alamdari

Mario Fafard

Donald Picard

Mathieu Letourneau

The present disclosure relates to anti-fog coatings, coated substrate comprising an anti-fog coating and a process for preparing such coatings. Said process comprising exposing a surface to be coated in a plasma, said plasma produced by exposing a carrier gas comprising an oxidant (e.g. N/O, N/NO, or air) and a alkylcyclosiloxane (e.g. tetramethylcyclotetrasiloxane) under dielectric barrier discharge (DBD) in Townsend's mode at atmospheric pressure.

Method for plasma deposition of anti-fog coatings

There is provided a process for manufacturing a carbonaceous anode for an electrolysis cell for the production of aluminium. The process comprises contacting coke particles with a boron-containing solution to obtain boron-impregnated coke particles, mixing the boron-impregnated coke particles with coal tar pitch to form an anode paste, and forming a green anode with the anode paste. A carbonaceous anode for an electrolysis cell for the production of aluminium is also provided, which comprises at least a first fraction of coke particle, a second fraction of coke particles and coal tar pitch, wherein at least the first faction of coke particles comprises boron-impregnated coke particles, the boron-impregnated coke particles being distributed throughout the carbonaceous anode. The carbonaceous anode presents good resistivity towards air and COoxidation, which translates into less dusting of the anode, thus improving its integrity throughout its lifetime.

Process for manufacturing carbon anodes for aluminium production cells and carbon anodes obtained from the same

The invention relates to an anti-fog coating for a surface of a substrate comprising: a first polymer layer resulting from covalently bonding a polyanhydride polymer to said surface; and a second polymer layer resulting from covalently bonding a polymer selected from the group consisting of polyvinyl alcohol, partially hydrolyzed polyester, polyether and cellulose derivative; said surface having nucleophilic groups. A substrate having an anti-fog coating, as well as a process for preparing said anti-fog coating to the surface of a substrate is also provided.

Process for producing anti-fog coating

Growing community of inventors

Québec, Canada

Gaétan Laroche