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US 2022/0089902 A1Published application
Pigmented coating compositions having low solvent content
AssigneeCovestro LLC
InventorsDaniel P. Wang, Kurt E. Best
Life of this patent
Estimating the term…
Abstract
A coating composition can include an aliphatic polyisocyanate and a polyaspartate combined at an equivalent ratio of from 0.9 to 1.8, the aliphatic polyisocyanate having an NCO % of from 6 wt % to 25 wt % based on ISO 11909:2007. The coating composition can also include a pigment at a pigment to binder ratio of from 0.05 to 1.3 and a drying agent in an amount of from 0.5 wt % to 5 wt % based on a total weight of the coating composition. The coating composition can have a total solvent content of less than or equal to 250 g/L.
Claims20
A coating composition, comprising:
- an aliphatic polyisocyanate and a polyaspartate combined at an equivalent ratio of from 0.9 to 1.8, the aliphatic polyisocyanate having an NCO % of from 6 wt % to 25 wt % based on ISO 11909:2007;
- a pigment at a pigment to binder ratio of from 0.05 to 1.3;
- and
- a drying agent in an amount of from 0.5 wt % to 5 wt % based on a total weight of the coating composition,
- wherein the coating composition has a total solvent content of less than or equal to 250 g/L.
2 more elements
A method of manufacturing a coating composition, comprising:
- combining an aliphatic polyisocyanate and a polyaspartate at an equivalent ratio of from 0.9 to 1.8, wherein the aliphatic polyisocyanate has an NCO % of from 6 wt % to 25 wt % based on ISO 11909:2007, wherein the coating composition has a total solvent content of less than or equal to 250 g/L, and wherein the coating composition further comprises:
- a pigment at a pigment to binder ratio of from 0.05 to 1.3;
- and
- a drying agent in an amount of from 0.5 wt % to 5 wt % based on a total weight of the coating composition.
1 more element
Dependencies are inferred from the claim text.