Method of producing a substrate which is coated with a...

C - Chemistry – Metallurgy – 09 – D

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C09D 183/04 (2006.01) C09D 183/02 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2575970

The invention relates to a method of producing a substrate which is coated with a mesoporous layer and to the use thereof in ophthalmic optics. The inventive method comprises the following steps consisting in: preparing a precursor sol containing (i) a precursor agent that is selected from compounds having formula M(X)4 (I), in which X is a hydrolysable group and M represents silicon or a tetravalent metal and mixtures thereof, (ii) at least one organic solvent, (iii) at least one pore-forming agent and (iv) water; depositing a film of the precursor sol on a main surface of the substrate; optionally consolidating the mesoporous structure of the deposited film; eliminating the pore-forming agent; and recovering the substrate coated with the mesoporous layer. The method is characterised in that: (i) the pore-forming agent is eliminated at a temperature of less than or equal to 150 °C; and (ii) the method comprises a step involving the introduction of at least one reactive agent bearing at least one hydrophobic group, before the deposition step (b) and/or after said step.

Le procédé comprend : la préparation d'un sol précurseur comprenant un agent précurseur choisi parmi les composés de formule : M(X)4 (I), dans laquelle, X est un groupe hydrolysable, et M représente le silicium ou un métal tétravalent, et leurs mélanges ; au moins un solvant organique ; au moins un agent porogène ; et de l'eau ; le dépôt d'un film du sol précurseur sur une surface principale du substrat ; optionnellement la consolidation de la structure mésoporeuse du film déposé ; l'élimination de l'agent porogène ; et la récupération du substrat revêtu de la couche mésoporeuse ; le procédé étant caractérisé en ce que : (i) l'élimination de l'agent porogène s'effectue à une température <= 150~C, et (ii) le procédé comprend une étape d'introduction d'au moins un agent réactif porteur d'au moins un groupe hydrophobe avant l'étape de dépôt (b) et/ou après l'étape b).

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Method of producing a substrate which is coated with a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of producing a substrate which is coated with a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a substrate which is coated with a... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1900612

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.