Moulding composed of plastic, comprising a fluorescent dye

Details Moulding composed of plastic, comprising a fluorescent dye Moulding composed of plastic, comprising a fluorescent dye

C - Chemistry, Metallurgy

08

K

C08K 3/00 (2006.01) C08K 3/22 (2006.01) C08K 5/00 (2006.01) C08K 13/00 (2006.01)

Patent

CA 2496068

The invention relates to a molded body made of a plastic matrix that comprises a transparent plastic material. Said molded body contains a soluble fluorescent dye and a scattering agent having a refractive index difference of +/- 0.003 to 0.2 relative to the plastic matrix. The inventive molded body is characterized by the fact that it also contains a white pigment at a concentration of 0.001 to 0.1 percent by weight, which has a refractive index difference of + 0.4 to 1.5 relative to the plastic matrix.

La présente invention concerne un corps moulé constitué d'une matrice en matière plastique transparente, qui contient un colorant fluorescent soluble et un agent de diffusion présentant une différence d'indice de réfraction de +/- 0,003 à 0,2 par rapport à la matrice en matière plastique. Ce corps moulé est caractérisé en ce qu'il contient également, à une concentration allant de 0,001 à 0,1 % en poids, un pigment blanc qui présente une différence d'indice de réfraction de + 0,4 à 1,5 par rapport à la matrice en matière plastique.

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