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US 4,139,500 AGranted
Printing ink binding agents
AssigneeHoechst Aktiengesellschaft
InventorAlbert Rudolphy
Life of this patent
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AssigneeHoechst Aktiengesellschaft
InventorAlbert Rudolphy
Estimating the term…
A process for the preparation of a printing ink binder which comprises simultaneously reacting (1) at least one hydrocarbon resin containing a predominant number of units of cyclopentadiene or derivatives thereof and having a bromine in the range 50 to 200, (2) at least one phenol-aldehyde component selected from the group consisting of a phenol-aldehyde condensation product and precursors therefor, the phenol content of which component consists predominantly of at least one phenol substituted by a hydrocarbon group, and (3) a natural resin component selected from the group consisting of a natural resinic acid, an ester and a metal salt thereof, said reaction mixture being free from .alpha.,.beta.-olefinically unsaturated dicarboxylic acids or derivatives thereof and a printing ink composition containing said binder in combination with a pigment and a non-aqueous medium.
A process for the preparation of a printing ink binder which comprises simultaneously reacting (1) at least one hydrocarbon resin containing a predominant number of units of cyclopentadiene or derivatives thereof and having a bromine number in the range 50 to 200, (2) at least one phenol-aldehyde component selected from the group consisting of a phenol-aldehyde condensation product and precursors therefor, the phenol content of which component consists predominantly of at least one phenol substituted by a hydrocarbon group, and (3) a natural resin component selected from the group consisting of a natural resinic acid an ester and a metal salt thereof, said reaction mixture being free from .alpha.,.beta.-olefinically unsaturated dicarboxylic acids or derivatives thereof.
A printing ink composition which comprises a printing ink binder which is a reaction product of (1) at least one hydrocarbon resin containing a predominant number of units of cyclopentadiene or derivatives thereof and having a bromine number in the range 50 to 200, (2) at least one phenol-aldehyde component selected from the group consisting of a phenol-aldehyde condensation product and precursors therefor, the phenol content of which component consists predominantly of at least one phenol substituted by a hydrocarbon group, and (3) a natural resin component selected from the group consisting of a natural resinic acid, an ester and a metal salt thereof, said reaction mixture being free from .alpha.,.beta.-olefinically unsaturated dicarboxylic acids or derivatives thereof, a pigment and a non-aqueous medium.
Dependencies are inferred from the claim text.