Amine compound, reactive coalescing agent, coating composition, coating layer and related methods
AssigneeAgency for Science, Technology and Research
InventorSatyasankar Jana
Life of this patent
Estimating the term…
Abstract
There is provided a reactive coalescing agent for a coating formulation that is substantially free from volatile organic compounds (VOCs), the coalescing agent comprising one or more amine compounds represented by general formula (I). Also provided are a coating composition, a coating layer, a method of preparing said reactive coalescing agent and a method of preparing said coating layer.
Claims22
A coalescing agent for a coating formulation that is substantially free from volatile organic compounds (VOCs), the coalescing agent comprising one or more amine compounds represented by general formula (I):
- wherein
- X is selected from O and NH;
- R1, R2, R3 and R4 are each independently selected from the group consisting of H, alkyl and alkenyl;
- R5, R6 and R7 are H;
- R8 is selected from the group consisting of alkenyl, cycloalkyl, cycloalkenyl, hydroxyalkyl, alkyloxyalkyl, (alkyloxy)nalkyl where n≥1, alkylacrylate, alkyl(meth)acrylate, alkylacrylamide, alkyl-NRxRy, and (alkyloxy)malkyl-O—C (═O)-alkyl-NRxRy where m≥0 and where Rx and Ry are each independently selected from H, alkenyl, cycloalkyl, cycloalkenyl, aryl and alkylaryl, and wherein one or more of the H atoms is/are optionally replaced by hydroxy, alkoxy, hydroxyalkyl, halogen, haloalkyl, cyano, cyanoalkyl and nitro.
A coating composition comprising:
- one or more coalescing agent(s);
- and
- one or more polymer(s),
- wherein the coalescing agent comprises one or more amine compounds represented by general formula (I):
- wherein
- X is selected from O and NH;
- R1, R2, R3 and R4 are each independently selected from the group consisting of H, alkyl and alkenyl;
- R5, R6 and R7 are H;
- R8 is selected from the group consisting of alkyl, alkenyl, cycloalkyl, cycloalkenyl, hydroxyalkyl, alkyloxyalkyl, (alkyloxy)nalkyl where n≥1, alkylacrylate, alkyl(meth) acrylate, alkylacrylamide, alkylamine and (alkyloxy)malkyl-O—C (═O)-alkylamine where m≥0 and
- wherein one or more of the H atoms is/are optionally replaced by hydroxy, alkoxy, hydroxyalkyl, halogen, haloalkyl, cyano, cyanoalkyl and nitro, and
- wherein the polymer spontaneously reacts with the coalescing agent during/upon drying of the coating composition to form a coating layer.
A coating layer comprising one or more coalescing agent(s) chemically coupled to one or more polymer(s) via at least one of an ionic interaction or a covalent interaction with one or more groups of the polymer selected from the group consisting of carboxylic acids (—C(═O)OH)), sulfonic acids (—S(═O)2OH), phosphonic acids (—P(═O)(OH)2), amine neutralized carboxylic acids, amine neutralized sulfonic acids, amine neutralized phosphonic acids, carboxylic acid-amine salts, sulfonic acid-amine salts and phosphonic acid-amine salt,
- wherein the coalescing agent comprises one or more amine compounds represented by general formula (I):
- wherein
- X is selected from O and NH;
- R1, R2, R3 and R4 are each independently selected from the group consisting of H, alkyl and alkenyl;
- R5, R6 and R7 are H;
- R8 is selected from the group consisting of alkyl, alkenyl, cycloalkyl, cycloalkenyl, hydroxyalkyl, alkyloxyalkyl, (alkyloxy)nalkyl where n≥1, alkylacrylate, alkyl(meth) acrylate, alkylacrylamide, alkylamine and (alkyloxy)malkyl-O—C(═O)-akylamine where m≥0 and wherein one or more of the H atoms is/are optionally replaced by hydroxy, alkoxy, hydroxyalkyl, halogen, haloalkyl, cyano, cyanoalkyl and nitro.
Dependencies are inferred from the claim text.