Off-white and gray autodeposition coatings

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 7/12 (2006.01) C09D 1/00 (2006.01) C09D 5/00 (2006.01)

Patent

CA 2663920

A composition for coating a metal substrate with a white to off-white or gray colored autodeposited coating comprising water, polymeric resin, HF and pigment particles comprising a core of titanium dioxide, an intermediate zirconia and/or alumina layer, and an outer organic layer, optionally the particles are treated with an anionic surfactant.

La présente invention concerne une composition pour le revêtement d'un substrat métallique avec un revêtement déposé automatiquement de couleur blanche à grisâtre ou grise comprenant de l'eau, une résine polymère, HF et des particules de pigment comprenant une âme de dioxyde de titane, une couche intermédiaire de dioxyde de zirconium et/ou d'alumine, et une couche organique externe, éventuellement les particules sont traitées avec un agent tensio-actif anionique.

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