エナメル - ROLEX SA

Title:

エナメル

Document Type and Number:

Japanese Patent JP5793072

Kind Code:

B2

Abstract:

The translucent or transparent colored vitreous enamel for fancy goods, jewellery or watches comprises metal nanoparticles having lost their natural tendency to aggregate with each other by embedding, electrostatic repulsion and functionalization of gum arabic. The enamel is present in the form of a layer based on a reflective substrate, where the coloration is done by reflection of light. The functionalization of gum arabic is carried out using charge carriers placed on their surface, entities with strong steric congestion such as polystyrene and hydrophilic entity. The translucent or transparent colored vitreous enamel for fancy goods, jewellery or watches comprises metal nanoparticles having lost their natural tendency to aggregate with each other by embedding, electrostatic repulsion and functionalization of gum arabic. The enamel is present in the form of a layer based on a reflective substrate, where the coloration is done by reflection of light. The functionalization of gum arabic is carried out using charge carriers placed on their surface, entities with strong steric congestion such as polystyrene, hydrophilic entity such as polystyrene modified by carboxyl group or surface active agents such as sodium dodecyl sulfate. An independent claim is included for a process for making translucent or transparent colored vitreous enamel.

Inventors:

Michelle Rainer
Olivier Puyol

Application Number:

JP2011500022A

Publication Date:

October 14, 2015

Filing Date:

March 10, 2009

Export Citation:

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