Patent ID: 6391257
Filing Date: 2002-05-21
Classification: C09K,C23F

Abstract:
An antifreeze concentrate composition comprising:(a) from about 90% to about 99.89% by weight of a liquid alcohol which functions as a freezing point depressant, or mixture thereof; (b) from about 0.1% to about 5% by weight of a carboxylic acid, or salt, isomer or mixture thereof; and (c) from about 0.01% to about 2% by weight of a cyclohexenoic acid, or salt, isomer, or mixture thereof, having the following formula: â€ƒwherein R1 is selected from the group consisting of OH, COOH, glycol esters, combinations thereof, and C1-C10 alkyl groups in combination with one or more of OH, COOH, or glycol ester; each of R2 and R3 is, independently, selected from the group consisting of H, OH, COOH, C1-C10 alkyl groups, glycol esters, and combinations thereof.