Polyurethane magnetic disk coatings

Details Polyurethane magnetic disk coatings Polyurethane magnetic disk coatings

1982-02-26

1983-10-18

Edmundson, F.

Compositions

Magnetic

With wax, bitumen, resin, or gum

4284259, H01F 1002, H01F 102

Patent

active

044104405

ABSTRACT:
A polyurethane coating material for magnetic recording disks which is composed of magnetic particles, solvent blends and a thermosetting binder system. The resins are made from blocked isocyanates or blocked polyisocyanates with polyacrylates which contain reactive hydrogens.

REFERENCES:
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patent: 4092256 (1978-05-01), Goodson et al.
patent: 4152485 (1979-05-01), Mizumura et al.
patent: 4286022 (1981-08-01), Vermillion et al.
patent: 4336308 (1982-06-01), Yamada et al.
Mijs et al, Chemical Abstracts, vol. 90, Abstract 13109u, (4/30/79).

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