| abstract |
An improved molding composition for compression molding non-coated video discs containing about 12-20 percent of conductive carbon black particles, about 10 percent of a vinyl chloride-vinyl acetate copolymer, about 10 percent of a vinyl chloride-maleate ester copolymer, about 15-17 percent of polymeric plasticizers and processing aids, about 3.5 percent of two or more metal stabilizers, about 1.5 percent of three or more lubricants and the remainder a copolymer of vinyl chloride containing about 6-8 percent of propylene. |