Molding composition

Details Molding composition Molding composition

1977-07-25

1979-04-24

Griffin, Ronald W.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 23EP, 260 23H, 26099816, 358128, 358129, C08L 9100, G11B 1112

Patent

active

041511328

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.

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patent: 2636869 (1953-04-01), de Tartas
patent: 3135379 (1964-06-01), Naudain
patent: 3481893 (1969-12-01), Pungs et al.
patent: 3833541 (1974-09-01), Shen
patent: 3842194 (1974-10-01), Clemens
patent: 3842217 (1974-10-01), Clemens
patent: 3859389 (1975-01-01), Carty et al.
patent: 3909517 (1975-09-01), Clemens
patent: 3919137 (1975-11-01), Dyer et al.
patent: 3960790 (1976-06-01), Khanna
patent: 3975321 (1976-08-01), Heiberger

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