COMPOSITION FOR COLORING POLYMERIC MATERIALS IN BULK Russian patent published in 2000 - IPC

FIELD: coloring composition for coloring polymeric compositions in bulk. SUBSTANCE: composition for coloring polymeric materials in bulk comprises wt.%: colorant containing active groups or mixture of colorants, 2.0-8.0; anticoagulating additive such as metal oxide or stearate, finely ground silica, clay or mixture thereof, 25.0-32.0; polyhedral alcohol, 16.0-18.0; organosilicon modifier, 16.0-18.0; polyethylene wax, 5.0-6.0; aliphatic or aromatic polycarboxylic acid anhydride, the balance up to 100%. Addition of the components into composition formulation and preparation of formulation make it possible to improve considerably coloring properties of composition and widen range of polymeric materials being colored. Composition is useful for coloring not only polyolefins and plasticized polyvinyl chloride, but also polystyrene and copolymers thereof. EFFECT: improved properties of the composition. 2 cl, 3 ex, 2 tbl