Sugar decolorizing quaternary ammonium acrylamide resins
AssigneeRohm and Haas Company
InventorsWilliam Fries, Silvia Napierski
Life of this patent
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Abstract
Crosslinked macroreticular and gel-type quaternary ammonium acrylamide anion exchange resins which possess a potential for hydrophobic bonding and thereby display a high affinity for slightly ionized or unionized refractory color bodies as well as for the more easily removed color bodies in aqueous sugar solutions are provided.
Claims8
A process for decolorizing aqueous sugar solutions which comprises contacting the solution with a crosslinked, macroreticular, quaternary ammonium acrylamide resin which comprises the product of a compound of the formula RX with a crosslinked, macroreticular tertiary amine, acrylamide precursor resin which comprises a copolymer of 0.1%-50% by weight of a polyethylenically unsaturated monomer and 50%-99.9% by weight of a monoethylenically unsaturated aliphatic ester of acrylic acid which has been aminolyzed with a polyamine, said resin comprising units having the chemical formula:
- ##STR9## wherein R is a substituted or unsubstituted hydrocarbyl functional group containing 5-22 carbon atoms and X is an anion, either alone or in series combination.
A process for decolorizing aqueous sugar solutions which comprises contacting the solution with a crosslinked, gel-type, quaternary ammonium acrylamide resin which comprises the product of a compound of the formula RX with a crosslinking, gel-type, tertiary amine, acrylamide precursor resin which comprises a copolymer of 0.1%-50% by weight of a polyethylenically unsaturated monomer and 50%-99.9% by weight of a monoethylenically unsaturated aliphatic ester of acrylic acid which has been aminolyzed with a polyamine, said resin comprising units having the chemical formula:
- ##STR10## wherein R is a substituted or unsubstituted hydrocarbyl functional group containing 5-22 carbon atoms and X is an anion, either alone or in series combination.
Dependencies are inferred from the claim text.