Inventors:
Zhiqiang Alex He - Ridgefield CT
Werner J. Blank - Wilton CT
Marie Emmanuelle Picci - Norwalk CT
Assignee:
KIng Industries, INC - Norwalk CT
International Classification:
B01J 3100
US Classification:
502162, 502150, 502156, 502159, 502161, 502171, 502172, 525438, 525533, 525534, 525934, 528 87, 528 88, 528 89, 528 92, 528220, 528236, 528237, 528242
Abstract:
A metal (M) alkyl acid phosphate catalyst for the reaction of an epoxy compound with a carboxyl compound to provide a coating formulation that is stable at room temperature; that is humidity resistant, and non-yellowing, wherein the alkyl acid phosphate has the formula: and wherein: a. each R is selected from the group consisting of: i) a C to C alkly, cycloalkyl, or aryl; ii) a linear or branched C to C alkyl substituted with â(OâCH âCH â) or â(OâCHâCH âCH â) , wherein o or p is from 1 to 20; iii) a -hydroxyethyl compound, RââXâCH âCHâOHâCH â, wherein Râ is a C to C alkyl or cycloalkyl or aryl, X is either âCH â, âOâ or âCOOâ; b. n+m=3 and n is between 2 to 1; and c. M is Zn or Sn (II) in a mole equivalent of 0. 7 to 1.