Bivalent metal hydroxide treatment of drying oil modified alkyd resins
First Claim
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1. A METHOD OF IMPROVING THE QUALITY OF A DRYING OIL MODIFIED ALKYD RESIN CONTAINING A STOICHIOMETRIC EXCESS OF HYDROXYL GROUPS OVER CARBOXYL GROUPS, AN ACID VALUE IN EXCESS OF 10 BUT NOT IN EXCESS OF 50 AND A CURE VALUE IN EXCESS OF ZERO IN SOLUTION IN A VOLATILE ORGANIC SOLVENT WHICH COMPRISES ADDING TO SAID RESINOUS SOLUTION A QUANTITY OF AN INORGANIC HYDROXIDE-FORMING BASICALLY-REACTIVE BIVALENT METAL ION SOURCE AVAILABLE IN SAID SOLUTION AN SUFFICIENT TO NEUTRALIZE AT LEAST IN PART SAID ACID VALUE AND HEATING SAID COMBINATION AT A TEMPERATURE OF FROM 125* TO 350*F. UNTIL THE ACID VALUE AND THE CURE VALUE HAVE BEEN REDUCED TO FORM A STABLE LIQUID PRODUCT.
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1 Claim
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1. A METHOD OF IMPROVING THE QUALITY OF A DRYING OIL MODIFIED ALKYD RESIN CONTAINING A STOICHIOMETRIC EXCESS OF HYDROXYL GROUPS OVER CARBOXYL GROUPS, AN ACID VALUE IN EXCESS OF 10 BUT NOT IN EXCESS OF 50 AND A CURE VALUE IN EXCESS OF ZERO IN SOLUTION IN A VOLATILE ORGANIC SOLVENT WHICH COMPRISES ADDING TO SAID RESINOUS SOLUTION A QUANTITY OF AN INORGANIC HYDROXIDE-FORMING BASICALLY-REACTIVE BIVALENT METAL ION SOURCE AVAILABLE IN SAID SOLUTION AN SUFFICIENT TO NEUTRALIZE AT LEAST IN PART SAID ACID VALUE AND HEATING SAID COMBINATION AT A TEMPERATURE OF FROM 125* TO 350*F. UNTIL THE ACID VALUE AND THE CURE VALUE HAVE BEEN REDUCED TO FORM A STABLE LIQUID PRODUCT.
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Current AssigneeLawrence W. Friedsam
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Original AssigneeLawrence W. Friedsam
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InventorsFriedsam, Lawrence W.
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Application NumberUS03/590,385Time in Patent Office2,710 DaysField of SearchUS Class Current106/18.36CPC Class CodesC08G 63/914 derived from polycarboxylic...C08L 2666/54 Inorganic substancesC09D 167/08 Polyesters modified with hi...
