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US 12,240,997 B2Granted
Rheology control agent and paint composition
AssigneeKansai Paint Co., Ltd.
InventorMasato Nakamizu
Life of this patent
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Abstract
A rheology control agent contains a reaction product of a polyisocyanate compound (a1), a primary monoamine having a number average molecular weight of 300 or less (a2), and a polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000 (a3), wherein the proportion of the polyether amine having a number average molecular weight of 1000 or more and less than 6000 (a3) is within the range of 10 to 30 mass % based on the total amount of the components (a1) to (a3).
Claims4
A rheology control agent comprising a reaction product of
- a polyisocyanate compound (a1),
- a primary monoamine having a number average molecular weight of 300 or less (a2), and
- a polyether amine having two or more amino groups and having a number average molecular weight of 1000 or more and less than 6000 (a3),
- wherein the proportion of the polyether amine having a number average molecular weight of 1000 or more and less than 6000 (a3) is within a range of 18 to 28 mass % based on the total amount of the components (a1) to (a3).
1 more element
Dependencies are inferred from the claim text.