Compositions – Magnetic – With wax – bitumen – resin – or gum
Patent
1982-07-14
1985-01-15
Demers, Arthur P.
Compositions
Magnetic
With wax, bitumen, resin, or gum
427128, 428500, 428900, H01F 128
Patent
active
044937784
ABSTRACT:
Disclosure is made of an improved aqueous magnetic coating composition employing a polyacrylic latex polymer as a dispersant. As preferred embodiments, the composition further comprises a polymeric binder having both hard and soft components, as well as the inclusion of flow agents, antifoaming agents, wetting agents and lubricants.
REFERENCES:
patent: 3725285 (1973-04-01), Denk et al.
patent: 4020236 (1977-04-01), Aonuma et al.
patent: 4336308 (1982-06-01), Yamada et al.
Cass Nathan
Demers Arthur P.
Heid David W.
McCormack John J.
Memorex Corporation
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