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US 4,301,055 AGranted
Printing inks containing novel limed resinates
AssigneeInmont Corporation
InventorRupert J. Schefbauer
Life of this patent
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Abstract
Improved limed resinates are disclosed. The calcium resinates comprise the reaction product of calcium hydroxide and rosins with a polyanhydride of an .alpha.-olefin-maleic anhydride. Printing inks containing the improved limed resinates are also disclosed.
Claims10
A calcium resinate comprising the reaction product of calcium hydroxide and rosins with
- (a) 1-25% by weight of a reactive hydrocarbon resin, and
- (b) 3-30% by weight of a polyanhydride of .alpha.-olefin-maleic anhydride.
A printing ink comprising a pigment dispersed in a varnish comprised of a solution of calcium resinate in hydrocarbon solvent wherein said calcium resinate comprises the reaction product of calcium hydroxide and rosins with
- (a) 1-25% by weight of a reactive hydrocarbon resin, and
- (b) 3-30% by weight of a polyanhydride of .alpha.-olefin-maleic anhydride.
Dependencies are inferred from the claim text.