Diversey, Inc.

Essilor International (compagnie Generale D'optique)

Bernard Parant

Louis Cot

Jean-Henri Durand

William Granier

Chefik Habassi

Disclosed is a cleaning solution comprising, based on the total weight of the solution: (a) more than 50% by weight of at least one lactone (component A); (b) and 1 to 10% by weight of at least one surfactant compound (component B) having a HLB ranging from 8 to 15 and selected from the group consisting of compounds of formula wherein: Rdenotes a hydrocarbon group comprising from 1 to 20 carbon atoms; n&#x2033; is an integer from 1 to 5, X denotes a valence link, &#x2014;O&#x2014;, &#x2014;OCH, C&#x2550;O or (CH), k being an integer varying from 1 to 2; Y denotes (RO)H wherein j is an integer ranging from 2 to 40, and R is a divalent hydrocarbon group, and compounds of formula wherein l is an integer from 6 to 13 and m is an integer from 3 to 15.

Composition for cleaning soiled items, namely optical items, and method for cleaning said items

Steel, aluminum and aluminum alloys, zinc and zinc alloys are treated to improve corrosion resistance with an aqueous solution of a fluorophosphate salt to passivate the metal surface, before or after phosphatizing and prior to painting.

Process for treatment of metallic surfaces by means of fluorophosphate

Compositions for treatment of metallic surfaces by means of

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Ozoir-la-Ferriere, France

Bernard Parant