Essilor International (compagnie Generale D'optique)

Satisloh Ag

Essilor International

Satisloh Gmbh

Centre National De La Recherche Scientifique

Mamonjy Cadet

Coralie Barrau

Mathieu Feuillade

Thierry Gacoin

Alexis Theoden

Muriel Matheron

Annette Cretier

Francis Henky

Charlotte Saint-Lu

Amélie Kudla

Camille Meridiano

Hervé Huilier

Adeline Callet

Lorraine Raboin

The present invention relates to an organosilane compound having at least one silicon atom bearing at least one hydrolysable group, at least one non-hydrolysable group comprising a hydrophilic group, and at least one non-hydrolysable group comprising a hydrophobic group having at least one fluorine atom, said hydrophilic group and said hydrophobic group not both comprising, in the main chain, the same substituent of the silicon atom. The invention further relates to an optical article having a substrate coated with a precursor coating of an anti-fogging coating formed by depositing said organosilane compound on the surface of the optical article. The precursor of the anti-fogging coating, which also has anti-fouling properties, is converted into the actual anti-fogging coating by application of a surfactant film to the surface thereof.

Optical article comprising a precursor coating of an anti-fogging coating having anti-fouling properties obtained from an amphiphilic compound

The present invention relates to an optical article having a substrate coated with a coating that is a precursor of an antifog coating, the surface of which has a static contact angle with water larger than 90&#xb0; and a polar surface energy component higher than 1.5 mJ/m. The precursor of the antifog coating, which furthermore possesses antifouling properties, is converted into an actual antifog coating by applying a surfactant film to its surface.

Optical article comprising a coating that is a precursor of an antifog coating having antifouling properties

The present invention relates to a dry wipe comprising a woven or knitted microfiber fabric having hydrophilic polymer microfibers and lipophilic polymer microfibers, which is impregnated with at least one surfactant, the hydrophilic/lipophilic balance (HLB) of which is greater than or equal to 5. These wipes can be used to clean the surface of substrates and/or to confer demisting properties on hydrophilic surfaces.

Dry wipe with demisting and/or cleaning action

The invention relates to a support consisting of natural and/or synthetic fibers which particles are held, which are preferably water-soluble, comprising at least one active agent, said particles at least partially releasing the active agent(s) under the effect of an external stress, characterized in the active agent has a water-solubility of between 0.1 and 60 wt. %, preferably between 0.1 and 30 wt. %.

Fibrous support comprising particles containing a partially water-soluble active agent, particles, and methods for producing said particles

The present invention relates to an optical article comprising a substrate coated with a coating preferably comprising silanol groups on its surface and, directly contacting this coating, an antifog coating precursor coating, said precursor coating preferably having a static contact angle with water of more than 10&#xb0; and of less than 50&#xb0; and being obtained through the grafting of at least one organosilane compound possessing a polyoxyalkylene group and at least one silicon atom bearing at least one hydrolyzable group, and is further coated with a film obtained by applying a composition containing at least one surfactant of formula F(CF)&#x2014;(CH&#x2014;CHO)H (VIII), wherein x is an integer ranging from 1 to 14, y is an integer lower than or equal to 10, compounds of formula (VIII) in which y=6 representing at least 90% by weight by weight, relative to the weight of compounds (VIII) present in the composition, so as to form an antifog coating, having preferably a static contact angle with water lower than or equal to 10&#xb0;.

Optical article comprising a surfactant-based temporary antifog coating with an improved durability

The present invention relates to an article comprising a substrate having a main surface coated with a mesoporous antistatic coating, said coating having a refractive index lower than or equal to 1.5, and a silica based matrix functionalized by ammonium groups, said matrix having a hydrophobic character. Under certain conditions, the mesoporous antistatic coating is a single-layer anti-reflection coating or is part of a multi-layer anti-reflection coating. This invention further relates to a method for manufacturing said article, and to the use of a mesoporous coating having a silica based matrix functionalized by ammonium groups, as an antistatic coating.

Method for manufacturing a substrate coated with mesoporous antistatic film, and use thereof in ophthalmic optics

The present invention relates to an optical article comprising a substrate provided with a coating comprising silanol groups on the surface thereof and, directly contacting this coating, an anti-fog coating precursor coating, said precursor coating having a static contact angle with water of more than 10&#xb0; and of less than 50&#xb0;, a thickness lower than or equal to 5 nm, and being obtained through the grafting of at least one organosilane compound having a polyoxyalkylene group comprising less than 80 carbon atoms and at least one silicon atom bearing at least one hydrolyzable group. The anti-fog coating precursor is converted into an actual anti-fog coating by applying on the surface thereof a film of a liquid solution comprising at least one surfactant. The anti-fog coating is immediately operational and provides long-lasting effects.

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Charenton le Pont, France

Mamonjy Cadet