Use of iron oxide pigments in a polymethyl methacrylate article

Details Use of iron oxide pigments in a polymethyl methacrylate article Use of iron oxide pigments in a polymethyl methacrylate article

C - Chemistry, Metallurgy

08

K

400/9315

C08K 3/22 (2006.01) C08F 2/44 (2006.01) C08F 20/14 (2006.01) C08L 33/12 (2006.01)

Patent

CA 1218493

TITLE Use Of Iron Oxide Pigments In A Polymethyl Methacrylate Article ABSTRACT A dispersion of iron oxide pigments, selected according to particle size to avoid interference with desired properties is added to a polymerizable acrylic composition containing alumina trihydrate as filler. This mixture is cured to form a filled polymeric structure con- taining 15 to 80% by weight polymethyl methacrylate and 20 to 85% by weight alumina trihydrate with a pleasing uniform color, maintaining desired properties of machinability, translucency and visual depth.

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