Patent ID: 8034864

Claim:
Opaque plastics, comprising 0.1 to 10% by weight of effect pigments based on glass flakes, which have virtually no visible or no visible flow lines and weld lines and are opaque, and which, for a layer thickness of 1.5 mm, have a transmission of max. 20% measured after adjustment to 100% using a translucer from Gabriel Chemie, wherein the opacity is achieved by adding inorganic or organic pigments, individually or in combination, fillers or a combination thereof, wherein the organic pigments are selected from the group consisting of monoazo pigments disazo pigments anthraquinone pigments anthrapyrimidine pigments quinacridone pigments quinophthalone pigments diaoxazine pigments flavanthrone pigments indanthrone pigments metal-complex pigments perinone pigments perylene pigments phthalocyanine pigments pyranthrone pigments thioindigo pigments and triarylcarbonium pigments, and the inorganic pigments are selected from the group consisting of white, black, and coloured pigments selected from the group consisting of titanium dioxide zinc white zinc sulphide lithopones lead white iron oxide black iron manganese black spinel black and, carbon black.