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US 12,473,456 B2Granted
Aqueous dispersion, production method therefor, coating composition, and coating film
AssigneeNippon Shokubai Co., Ltd.
InventorMakoto Fujiwara
Life of this patent
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Abstract
An aqueous dispersion including a polymer having a 2-oxazoline group; and a surfactant, the surfactant containing a sulfuric acid ester compound represented by the following Chemical Formula (S): R1—O—(R2O)nSO3X (S) wherein R1 represents an aliphatic hydrocarbon group having 8 to 20 carbon atoms; R2 represents an alkylene group having 2 to 4 carbon atoms; n represents 2 to 15; and X represents a monovalent cation.
Claims14
An aqueous dispersion comprising:
- a polymer (A) having a 2-oxazoline ring group;
- and
- a surfactant,
- wherein the surfactant contains a sulfuric acid ester compound represented by the following Chemical Formula(S):
- R1—O—(R2O)nSO3X (S)
- wherein R1 represents an aliphatic hydrocarbon group having 8 to 20 carbon atoms;
- R2 represents an alkylene group having 2 to 4 carbon atoms;
- n represents 2 to 15;
- and X represents a monovalent cation,
- wherein the aqueous dispersion comprises 0.7% by mass or more of the sulfuric acid ester compound with respect to the total amount of the polymer (A), and
- wherein the polymer (A) includes 5% to 50% by mass of a structural unit having the 2-oxazoline ring group with respect to the total mass of the polymer (A).
8 more elements
A method for producing an aqueous dispersion including a polymer (A) having a 2-oxazoline ring group;
- and a surfactant,
- wherein the surfactant contains a sulfuric acid ester compound represented by the following Chemical Formula(S):
- R1—O—(R2O)nSO3X (S)
- wherein R1 represents an aliphatic hydrocarbon group having 8 to 20 carbon atoms;
- R2 represents an alkylene group having 2 to 4 carbon atoms;
- n represents 2 to 15;
- and X represents a monovalent cation,
- wherein the method comprises a step of producing the polymer (A) by subjecting a monomer mixture containing an addition-polymerizable oxazoline monomer to emulsion polymerization in the presence of the surfactant containing the sulfuric acid ester compound, and
- forming the aqueous dispersion including the polymer (A) having the 2-oxazoline ring group,
- wherein the aqueous dispersion comprises 0.7% by mass or more of the sulfuric acid ester compound with respect to the total amount of the polymer (A), and
- wherein the polymer (A) includes 5% to 50% by mass of a structural unit having the 2-oxazoline ring group with respect to the total mass of the polymer (A).
8 more elements
A coating film comprising:
- a polymer (A) having a 2-oxazoline ring group;
- a sulfuric acid ester compound represented by Chemical Formula(S):
- R1—O—(R2O)nSO3X (S)
- wherein R1 represents an aliphatic hydrocarbon group having 8 to 20 carbon atoms;
- R2 represents an alkylene group having 2 to 4 carbon atoms;
- n represents 2 to 15;
- and X represents a monovalent cation;
- and
- a polymer (B) having a carboxyl group;
- wherein the coating film comprises 0.7% by mass or more of the sulfuric acid ester compound with respect to the total amount of the polymer (A), and
- wherein the polymer (A) includes 5% to 50% by mass of a structural unit having the 2-oxazoline ring group with respect to the total mass of the polymer (A).
8 more elements
Dependencies are inferred from the claim text.