Stable rosin dispersions
AssigneeHercules Incorporated
InventorPaul H. Aldrich
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Abstract
Disclosed are essentially stable aqueous dispersions of fortified rosin which consist essentially of fortified rosin in finely-divided form; a water-soluble cationic resin, a specific example of which is a water-soluble cationic aminopolyamide--epichlorohydrin resin; and water. The fortified rosin dispersion is used to size paper.
Claims21
An aqueous fortified rosin dispersion consisting essentially of, by weight, (A) from about 5% to about 50% fortified rosin, (B) from about 0.5% to about 10% of watersoluble cationic resin dispersing agent, and (C) water to 100%, component (B) being selected from the group consisting of (i) a water-soluble polyaminopolyamide-epichlorohydrin resin, (ii) a water-soluble alkylenepolyamine-epichlorohydrin resin and (iii) a water-soluble poly(diallylamine)-epichlorohydrin resin, said fortified rosin being the adduct reaction product of rosin and an acidic compound containing the ##EQU5## group.
An aqueous fortified rosin dispersion consisting essentially of, by weight, (A) from about 10% to about 40% fortified rosin, (B) from about 1% to about 8% of water-soluble cationic resin dispersing agent, and (C) water to 100%, component (B) being selected from the group consisting of (i) a water-soluble polyaminopolyamide-epichlorohydrin resin, (ii) a water-soluble alkylenepolyamine-epichlorohydrin resin and (iii) a water-soluble poly(diallylamine)-epichlorohydrin resin, said fortified rosin being the adduct reaction product of rosin and an acidic compound containing the ##EQU6## group.
Dependencies are inferred from the claim text.