Disc record and method of compounding disc record composition

Details Disc record and method of compounding disc record composition Disc record and method of compounding disc record composition

1974-03-25

1976-06-01

Jacobs, Lewis T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106 37, 260 285D, 260 342, 260 457S, 260 4575K, C08L 9100

Patent

active

039607909

ABSTRACT:
A method of making a disc record molding composition by compounding a copolymer of vinyl chloride-vinyl acetate and a homopolymer of vinyl chloride, with carbon black, a resin stabilizer, a resin plasticizer, an antistatic agent and a mold release agent in a series of blending steps which include successive increases in temperature, that results in a product capable of taking an unusually high signal density per unit of groove wall area.

REFERENCES:
patent: 2563414 (1951-08-01), Parker
patent: 2581836 (1952-01-01), Cresswell
patent: 2993234 (1961-07-01), Miura et al.
patent: 3048557 (1962-08-01), Siddall
patent: 3225073 (1965-12-01), Glabisch
patent: 3351577 (1967-11-01), Krumm
patent: 3481893 (1969-12-01), Pungs et al.
patent: 3535256 (1970-10-01), Siano
patent: 3539636 (1970-11-01), Dorfelt
patent: 3846361 (1974-11-01), Sands
cyanamid; Plastics Additives Technical Bulletin; "Catanac 609 Antistatic Agent".
Cyanamid; Plastics Additives Antistatic Agents-Product List; A-6.

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