EP 1979281 A1 20081015 - METHODS FOR MAKING AN ARTICLE COATED WITH A PHOTOCHROMIC FILM AND USE THEREOF IN OPHTHALMOLOGICAL OPTICS
Title (en)
METHODS FOR MAKING AN ARTICLE COATED WITH A PHOTOCHROMIC FILM AND USE THEREOF IN OPHTHALMOLOGICAL OPTICS
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES ARTIKELS MIT FOTOCHROMHALTIGER FOLIENBESCHICHTUNG UND DESSEN VERWENDUNG IN DER AUGENOPTIK
Title (fr)
PROCEDES DE FABRICATION D'UN ARTICLE REVETU D'UN FILM PHOTOCHROME ET LEUR APPLICATION EN OPTIQUE OPHTALMIQUE
Publication
Application
Priority
- FR 2007050718 W 20070131
- FR 0650380 A 20060202
Abstract (en)
[origin: WO2007088312A1] The invention concerns a method for making at least one substrate coated with a mesoporous photochromic film, including: a) preparing a sol precursor of a mesoporous film comprising an inorganic precursor agent, at least one organic solvent, water, at least a pore-forming agent and a hydrophobic precursor bearing at least one hydrophobic group; b) depositing a film of the sol precursor onto a main surface of a substrate; c) eliminating the pore-forming agent from the film resulting from the previous step at a temperature = 150°C ; d) impregnating the mesoporous film resulting from step c) with a solution comprising at least one photochromic agent. According to one embodiment, the photochromic agent is introduced directly into the precursor sol. According to one embodiment, the precursor sol does not comprise any hydrophobic precursor agent but the photochromic film is made hydrophobic by a treatment subsequent to its preparation.
IPC 8 full level
C03C 1/00 (2006.01); B01D 71/04 (2006.01); C03B 19/12 (2006.01); C03C 17/00 (2006.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C09K 9/02 (2006.01); G02B 1/04 (2006.01); G02B 5/23 (2006.01)
CPC (source: EP US)
C03C 1/008 (2013.01 - EP US); C03C 17/007 (2013.01 - EP US); C08J 7/0427 (2020.01 - EP US); C08J 7/043 (2020.01 - EP US); C08J 7/046 (2020.01 - EP US); C09K 9/02 (2013.01 - EP US); G02B 5/23 (2013.01 - EP US); G03C 1/73 (2013.01 - EP US); C03C 2217/425 (2013.01 - EP US); C03C 2218/113 (2013.01 - EP US); C08J 2483/00 (2013.01 - EP US); C09K 2211/1029 (2013.01 - EP US); C09K 2211/1033 (2013.01 - EP US); C09K 2211/1088 (2013.01 - EP US); Y10T 428/249953 (2015.04 - EP US)
Citation (search report)
See references of WO 2007088312A1
Citation (examination)
BAE J Y ET AL: "Photochromism in spiropyran impregnated fluorinated mesoporous organosilicate films", JOURNAL OF MATERIALS RESEARCH AUGUST 2004 MATERIALS RESEARCH SOCIETY US, vol. 19, no. 8, August 2004 (2004-08-01), pages 2503 - 2509
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2896886 A1 20070803; FR 2896886 B1 20080711; EP 1979281 A1 20081015; JP 2009525497 A 20090709; US 2013108858 A1 20130502; WO 2007088312 A1 20070809
DOCDB simple family (application)
FR 0650380 A 20060202; EP 07731546 A 20070131; FR 2007050718 W 20070131; JP 2008552863 A 20070131; US 27813007 A 20070131