| 摘要 |
<p>The lead has a 15 to 30 percentage of lead base mass of fat and wax base, a 40 to 80 percentage of filling material, and 0.1 to 30 percentage of organic and/or inorganic color pigments. The lead base mass contains 0.5 to 10 percentage of aluminum distearate, 5 to 20 percentage of oxidized polyethylene wax, and 5 to 20 percentage of fatty acids and/or fatty acid derivates e.g. esters of fatty acid, with a melting point ranging from 50 to 110 degree Celsius relative to a total mass, A triglyceride with a melting point ranging from 55 to 65 degree Celsius is contained in the lead. A mixture of stearic acid containing soyabean acid and hydrogenated soyabean oil with a melting point ranging from 95 to 105 degree Celsius is contained in the lead. The filling material is selected from a group of china clay, mica, pumice powder and talc.</p> |
