Essilor International

Essilor International (compagnie Generale D'optique)

Bastien Feret

Ahmed Haddadi

Thierry Bonnin

Damien Paille

Soazic Mousset

Zheng Wang

Hui Yu

Xiaofeng Luo

Patricia Koh

Richard Liu

The present invention relates to a curable antistatic primer composition, comprising: (d) at least one polyalkylene oxide polymer; (e) at least a Lithium salt; (f) at least an amorphizer selected from at least a dendritic polymer. The present invention also relates to an optical article having at least one surface comprising an antistatic primer coating obtained by depositing on a substrate and curing said composition, and its production method.

Optical article comprising an electrically conductive layer, and production method

The invention relates to a method () for correcting an individual behavior for using a pair of spectacles in optimized conditions, said individual wearing frame (). According to the invention said method comprises the following steps: &#x2014;a step () of determining parameters that characterize the behavioral conditions of the individual using correcting means securely fastened to the frame of the frame () in the preceding various situations for a set time; &#x2014;a step () of comparing said parameters with preset reference values; and &#x2014;a step () of correcting the behavior of the individual using detecting means () that are securely fastened to the said frame (), and that trigger when the difference between a parameter and the corresponding reference value diverges beyond a preset threshold value.

Method for correcting a wearer behaviour for using a pair of spectacles in optimized conditions

The invention relates to an antistatic coating composition comprising a hydrolyzate resulting from the at least partial hydrolysis of: a component A consisting of one or more compounds containing at least one polyalkylene oxide segment and at least one &#x2014;Si(X)hydrolyzable group, in which n is an integer ranging from 1 to 3 and the X groups are precursors of OH groups; at least one inorganic metal salt; and optionally, at least one component B, consisting of one or more compounds of formula R,Si(Z)or formula RYSi(Z), in which the R groups are monovalent alkyl groups, the Z and Z1 groups are hydrolyzable groups or hydrogen atoms, the Rgroups are monovalent organic groups linked to the silicon atom through a carbon atom, the Y groups are monovalent organic groups linked to the silicon atom and containing at least one epoxy function, n' is an integer equal to O, 1 or 2, m1 and n1 are integers such that m1 is equal to 1 or 2 and n1+m1=1 or 2, component A and optional component B being chosen such that a cross-linked structure is generated upon polymerization of said composition, the dry extract of said composition containing less than 5% by weight of free polyalkylene oxide polymers.

Antistatic sol/gel compositions and optical articles coated therewith

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Singapore, Singapore

Bastien Feret