Low VOC coalescing agents
View Patent ↗A coalescent composition for coating compositions such as paints, adhesives, and coatings comprising a blend of dibasic esters, specifically (i) esters of adipic, glutaric, and/or succinic diacids and/or (ii) esters of isomers of adipic acid have advantages, including efficiency and low VOC.
1. A low VOC coalescent agent composition comprising a mixture of the following diesters
wherein R 1 and R 2 individually are an isoamyl group.
2. The composition of claim 1 wherein the composition is characterized by a boiling point of about 215° C. to about 400° C.
3. The composition of claim 1 wherein the composition is characterized by a boiling point range of about 280° C. to about 390° C.
4. The composition of claim 1 wherein the composition is characterized by a boiling point range of about 295° C. to about 390° C.
5. The composition of claim 1 wherein the composition is characterized by a boiling point range of between about 300° C. to about 330° C.
6. The composition of claim 1 wherein the composition is one or more by-products in the production of adipic acid.
7. A low VOC coalescent agent composition comprising:
about 20-28%, by weight of the composition, a diester of the formula:
about 59-67%, by weight of the composition, a diester of the formula:
and
about 9-17%, by weight of the composition, a diester of the formula:
wherein R 1 and R 2 are individually an n-butyl group.
8. The composition of claim 7 wherein the composition is a by-product in the production of adipic acid.
9. A latex coating composition comprising:
(a) at least one latex polymer;
(b) water; and
(c) a low VOC coalescent agent composition according to claim 1 .
10. A latex coating composition comprising:
(a) at least one latex polymer;
(b) water; and
(c) a low VOC coalescent agent composition according to claim 7 .
11. The composition of claim 7 wherein the composition is characterized by a boiling point of about 215° C. to about 400° C.
12. The composition of claim 7 wherein the composition is characterized by a boiling point range of about 280° C. to about 390° C.
13. The composition of claim 7 wherein the composition is characterized by a boiling point range of about 295° C. to about 390° C.
14. The composition of claim 7 wherein the composition is characterized by a boiling point range of between about 300° C. to about 330° C.