Abstract: A polymer composition comprising particles and colorant, its method of preparation and its use The present invention relates to a polymeric composition comprising polymeric particles and a colorant. In particular the present invention relates to a polymeric (meth)acrylic composition comprising polymeric particles and a mixture of colorants. The present invention concerns also the use of such a polymeric composition or polymeric (meth)acrylic composition comprising polymeric particles and a mixture of colorants in lightning applications. The present invention concerns also a process for making a polymeric composition or (meth)acrylic composition comprising polymeric particles and a mixture of colorants.

Abstract: The present invention relates to a moulded object made of a transparent and colored plastic exhibiting a polychromatic effect, characterized in that the transparent plastic comprises from 0.1 to 1500 ppm of at least one fluorescent dye and from 50 to 10 000 ppm of at least one optical brightener. It also relates to the resin used for forming the moulded object. It also relates to a light device combining the said moulded object with at least one artificial light source which exhibits an emission in the region of excitation of the optical brightener, in particular in the 300-450 nm range, preferably 350-420 nm range, more preferably still 350-400 nm range.