Chemistry: natural resins or derivatives; peptides or proteins; – Natural resins or derivatives – Rosin or derivative used as starting material in process – or...
Patent
1997-03-05
1998-12-01
Truong, Duc
Chemistry: natural resins or derivatives; peptides or proteins;
Natural resins or derivatives
Rosin or derivative used as starting material in process, or...
530211, 106 3141, 106 3173, 1014501, 1014631, 101DIG43, C09F 100
Patent
active
058440712
ABSTRACT:
The specification discloses a process for making high viscosity gelled ink resins which exhibit improved properties. In a preferred embodiment, a precursor resin is conducted through an extruder with a cross-linking agent, preferably a heat reactive phenolic resin, to induce formation of covalent cross-link bonds in the resin producing a high viscosity resin which resists viscosity breakdown under high shear conditions. The resulting gelled ink resins may be used directly in making ink, obviating the need for further gelation and avoiding the use of conventional organo-metallic gelling agents.
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Klein Robert R.
Williams Theodore J.
Arizona Chemical Company
Truong Duc
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