Functionalized tannin and improved protein extractant
AssigneeISP Investments Inc.
InventorsJenn S. Shih, Mustafa Rehmanji, Michael A. Drzewinski
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Abstract
A tannin functionalized with an aliphatically unsaturated, hydroxy reactive compound selected from the group of a carboxylic acid, a carboxylic acid ester, an isocyanate and an epoxide, which functionalized tannin is particularly useful in crosslinked form as an extractant in beverage clarification.
Claims16
A tannin functionalized with an aliphatically unsaturated C2 to C12, hydroxy-reactive compound containing the functionalizing moiety selected from the group consisting of a carboxylic acid, carboxylic acid ester, isocyanate and a glycidyl moiety and a mixture thereof.
A tannin compound functionalized with a glycidyl coupound containing a terminal C2 to C3 alkylene group;
- which functionalization occurs as a result of epoxy ring opening and bonding to a hydroxy group of the tannin compound.
A tannin compound functionalized with a carboxylic acid containing an aliphatically unsaturated C2 to C3 group which functionalization occurs as a result of the reaction between the carboxylic group and a hydroxy group of the tannin.
A tannin compound functionalized with a carboxylic lower alkyl ester containing an aliphatically unsaturated C2 to C3 group which functionalization occurs as a result of the reaction between the ester group and a hydroxy group of the tannin.
A tannin compound functionalized with an isocyanate compound containing an aliphatically unsaturated C2 to C3 group which functionalization occurs as a result of the reaction between the isocyanate group and a hydroxy group of the tannin.
Dependencies are inferred from the claim text.