Polyaspartate compositions
AssigneeCovestro LLC
InventorsMatthew Stewart, Joseph Pierce, Michael K. Jeffries, Wendy S. Gustavich, Charles A. Gambino, Andrew Bradburn, Robert A. Wade, Myron W. Shaffer
Life of this patent
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Abstract
A polyaspartate composition can include a reaction product of a diamine and an amine-reactive component. The amine reactive-component can include a diester and an acrylate combined at an equivalent ratio of diester equivalents to acrylate equivalents of from less than 0.9:greater than 0.1 to greater than 0.3:less than 0.7. The diamine and the amine-reactive component can be combined at an equivalent ratio of diamine equivalents to amine-reactive component equivalents of from 1:0.8 to 0.8:1.
Claims19
A polyaspartate composition, comprising:
- a reaction product of a diamine and an amine-reactive component, wherein the amine reactive-component comprises a diester and an acrylate at an equivalent ratio of diester equivalents to acrylate equivalents of from less than 0.9:greater than 0.1 to greater than 0.3:less than 0.7, and wherein the diamine and the amine-reactive component are combined at an equivalent ratio of diamine equivalents to amine-reactive component equivalents of from 1:0.8 to 0.8:1.
A method of preparing a polyaspartate composition, comprising:
- combining a diamine and an amine-reactive component at an equivalent ratio of diamine equivalents to amine-reactive component equivalents of from 1:0.8 to 0.8:1, wherein the amine reactive-component comprises a diester and an acrylate at an equivalent ratio of diester equivalents to acrylate equivalents of from less than 0.9:greater than 0.1 to greater than 0.3:less than 0.7.
Dependencies are inferred from the claim text.