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US 4,263,188 AGranted
Aqueous coating composition and method
AssigneeVerbatim Corporation
InventorsGeorge J. Hampton, William F. Maida
Life of this patent
Estimating the term…
Abstract
An aqueous coating composition for forming a magnetic tape which has good adhesion for polyethylene terephthalate substrate. The composition is a stable dispersion in water of urethane with carboxylic acid groups in the backbone chain and includes a polyfunctional cross-linking agent.
Claims7
An aqueous coating composition for forming a magnetic recording layer, said coating composition comprising a stable aqueous dispersion of magnetic pigment and polyurethane with carboxylic acid groups in the backbone chain.
Dependencies are inferred from the claim text.