| abstract |
MIXTURES BASED ON THERMOPLASTIC MATERIALS FOR THE MANUFACTURE OF TRACING PRODUCTS SUCH AS CRAYONS AND CHALKS, COMPRISING OLEFINIC POLYMERS, 5-15% OF ETHYLENEVINYL ACETATE COPOLYMERS AND 5-15% OF HIGH OILING ESTERS. THE MIXTURES MAY ALSO CONTAIN PETROLEUM WAXES, METAL SALTS OF FATTY ACIDS, EPOXY RESINS, PIGMENTS AND FILLERS. THE MIXTURE MAY BE INJECTED-MOLDED AND MAY BE ENCLOSED IN A MOLDED SHEATH. |