Coating compositions for a transparent magnetic recording layer
AssigneeEastman Kodak Company
InventorRonald M. Wexler
Life of this patent
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Abstract
A coating composition for applying a transparent magnetic recording layer to a support which comprises a polymeric binder, ferromagnetic particles and a dispersing medium for the polymeric binder, the dispersing medium comprising (a) a compound having the formula ##STR1## where R is alkyl having 1 to 8 carbon atoms, phenyl or benzyl; R' is hydrogen, methyl or ethyl; and R" is alkyl having 1 to 5 carbon atoms; and (b) methylene chloride, or lower alkyl ketones or mixtures of methylene chloride and lower alkyl ketones.
Claims18
A coating composition for applying a transparent magnetic recording layer to a support which comprises a polymeric binder, ferromagnetic particles and a dispersing medium for the polymeric binder, the dispersing medium comprising (a) a compound having the formula ##STR5## where R is alkyl having 1 to 8 carbon atoms, phenyl or benzyl;
- R' is hydrogen, methyl or ethyl;
- and
- R" is alkyl having 1 to 5 carbon atoms, and
- (b) methylene chloride, or lower alkyl ketones or mixtures of methylene chloride and lower alkyl ketones.
Dependencies are inferred from the claim text.