Printing ink binder resin

Details Printing ink binder resin Printing ink binder resin

1975-11-07

1977-01-11

Marquis, Melvin I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 318T, 260 47R, 260838, 260873, C08L 9100

Patent

active

040025853

ABSTRACT:
Printing ink binders comprising a reaction product of (a) rosin, (b) .alpha.,.beta.-ethylenically unsaturated carboxylic acid-modified petroleum resin, (c) resol type phenolformaldehyde pre-condensate and (d) polyhydric alcohol, which have an acid value of not more than 30, a softening point of not less than 140.degree. C., a viscosity of a 33% by weight linseed oil solution of not less than Y by Gardner-Holdt bubble viscometer at 25.degree. C. and a tolerance to high-boiling aliphatic hydrocarbon of not less than 5. The reaction products have high softening point and high solubility to solvents, and are useful as binder resins for printing ink. The reaction products in the presence of cyclopentadiene polymer also provide excellent ink binders which have a higher softening point.

REFERENCES:
patent: 1623901 (1927-04-01), Amann et al.
patent: 2861966 (1958-11-01), Betts

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