Colas

Jean-Eric Poirier

Graziella Durand

Thierry Delcroix

Michel Ballie

Michel Chappat

Pierre Calvin

A binder for the production of a layer for road works or civil engineering comprises, with respect to the total weight of the binder:

Binder of vegetable nature for the production of materials for building and/or civil engineering

A binder for the production of a layer for road works or civil engineering comprises, with respect to the total weight of the binder: (a) 2 to 98% in weight of at least one purely natural or modified natural resin, of vegetable origin, having a softening point measured of 30 to 200%; (b) 98 to 2% in weight of at least one oil of vegetable origin having a viscosity at 25&#xb0; C. of 50 mPa&#xb7;s to 1000 Pa&#xb7;s, (c) the binder having: 

This invention relates to a drying time accelerator for a water-based paint comprising mineral particles, a polymer binder with water-based dispersion and an emulsion polymerization agent, as well as the corresponding paint. The accelerator has a polymeric structure, is water-soluble, comprises cationic charges, and is selected from metallic polychlorides, metallic polyoxychlorides, or synthesis polyacrylamide polymer. The invention also relates to a method for applying a water-based paint according to the invention onto a support, according to which the paint is sprayed onto the support, light-reflecting balls are distributed in the paint, and a drying time accelerator is incorporated into the paint, preferably after distribution of the balls. The application of the invention is to road markings.

Drying time accelerator for a water-based paint, corresponding paint, and method of application

Bitumen emulsion including bituminous phase having one of pure bitumen, fluxed bitumen, and modified bitumen. The bitumen emulsion also includes an aqueous phase including water and an emulsifying agent. The bitumen emulsion further includes a breaking agent encapsulated in capsules allowing control of breaking of the bitumen emulsion, the control involving rupture of the capsules from a mechanical effect by a mechanical action produced on the bitumen emulsion. Processes of producing a bitumen emulsion. Processes of controlling breaking of a bituminous emulsion.

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Montigny-le-Bretonneux, France

Jean-Eric Poirier