EFFICIENT COALESCING AGENTS
A coalescent composition for coating compositions such as paints, adhesives, and coatings comprising a blend of diesters, the blend comprising adducts of alcohol and diacids, the alcohol selected from the group consisting of ethyl, propyl, isopropyl alcohol and mixtures thereof, and the diacids comprising a blend of adipic, glutaric and succinic diacids (“AGS”); and paint, adhesive, and coating compositions comprising such coalescent compositions are disclosed.
1 . A coalescent agent composition comprising a blend of diesters, the blend comprising adducts of alcohol and-diacids, the alcohol selected from the group consisting of ethyl, propyl, isopropyl alcohol, and mixtures thereof, and a blend of adipic, glutaric and succinic diacids (“AGS”).
2 . The composition of claim 1 wherein the adducts have a formula:
R 1 —OOC-A-COO—R 2
wherein R 1 and R 2 are independently selected from ethyl, propyl, and isopropyl and A is a mixture of adipic, glutaric, and succinic diacids.
3 . The coalescent agent composition of claim 1 wherein the composition is derived from one or more by-products in the production of adipic acid.
4 . The coalescent agent composition of claim 1 comprising a blend of esters, the blend comprising:
about 20-28%, by weight of the blend, a diester of the formula:
about 59-67%, by weight of the blend, a diester of the formula:
and
about 9-17%, by weight of the blend, a diester of the formula:
5 . (canceled)
6 . Paint, adhesive, inks, and coating compositions comprising the coalescent composition of claim 1 .
7 . Paints, adhesive, inks, and coating compositions formed from a composition according to claim 4 .