Improved pearlescent pigment for exterior use

Details Improved pearlescent pigment for exterior use Improved pearlescent pigment for exterior use

C - Chemistry, Metallurgy

09

C

C09C 1/28 (2006.01) C09C 1/00 (2006.01) C09C 1/24 (2006.01) C09C 1/36 (2006.01) C09C 3/06 (2006.01) C09C 3/12 (2006.01)

Patent

CA 2242998

A pearlescent pigment having improved humidity resistance and weatherability is realized by a metal oxide-coated mica pearlescent pigment which has an aluminum or an aluminum-cerium combined with a hydrolyzed silane coupling agent treated surface.

Cette invention concerne un pigment nacré qui possède une meilleure résistance à l'humidité et aux intempéries, et qui est obtenu à partir d'un pigment nacré à base de mica recouvert d'oxyde métallique, lequel pigment possède un aluminium ou un aluminium-cérium combiné à une surface traitée à l'aide d'un agent de couplage de type silane hydrolysé.

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