Aqueous compositions, diluent compositions, and water-based paint compositions

Abstract

Provided are: a water-based composition which can impart a viscous property to water and can exhibit a satisfactory viscous-property-imparting effect even when the water-based composition has such a formulation that a conventional composition is less likely to exhibit a viscosity-imparting effect; a diluted composition; and a water-based coating composition.　The water-based composition comprises a block copolymer (A1) represented by (X-)a[R1(-W1-R2-W2)b]m(-R1(-X)c)p and water, in which, in all of X's in the block copolymer (A1) represented by formula (1), the content of X's each represented by Y is 5 mol% or more, and the A1 / (water) value that is a ratio of the mass of the block copolymer (A1) to the mass of water is 5 / 95 to 50 / 50.

Claims

1. The material comprises a block copolymer (A1) represented by the following general formula (1) and water. (X-) ａ [R １ (-W １ -R ２ -W ２ ) ｂ ] ｍ (-R １ (-X) ｃ ) ｐ ・・・(1) (In formula (1) above, X is independently a carboxyl group or a salt thereof, or Y, and Y is R ３ - ( OR ４ ) ｎ -Z-, R １ These are, independently, a divalent hydrocarbon group obtained by removing two carboxyl groups from a dicarboxylic acid, and / or a trivalent hydrocarbon group obtained by removing three carboxyl groups from a tricarboxylic acid, and are hydrocarbon groups having 2 to 52 carbon atoms. R ２ This is a divalent hydrocarbon group obtained by removing two amino groups from a diamine, and is a hydrocarbon group having 2 to 36 carbon atoms. R ３ It is a hydrocarbon group having 1 to 22 carbon atoms. R ４ It is a divalent hydrocarbon group having 2 to 4 carbon atoms. W １ and W ２ Z is a secondary amide bond, and Z is an ester bond or amide bond. a is an integer from 1 to 11, b is 1 or 2, c is 1 or 2, m is an integer from 0 to 10, and n is an integer from 2 to 100. If b is 2, it indicates that two (-W1-R2-W2) chains branch off from one trivalent R1 as the base point. c is 1 if R 1 in (-R 1 (-X) c) p is a divalent hydrocarbon group, and 2 if it is a trivalent hydrocarbon group. p is an integer between 1 and 11, which is the total number of [R 1 (-W 1 -R 2 -W 2) b] m present in the block copolymer (A1) where b is 2, plus 1. Of all the X in the block copolymer (A1) represented by formula (1), the amount of X that is Y is 5 mol% or more. An aqueous composition characterized in that the mass ratio of the block copolymer (A1) to water, A1 / water, is 5 / 95 to 50 / 50.

2. The aqueous composition according to claim 1, characterized in that (X-)a in formula (1) indicates that a number of X are each independently directly bonded to R1 in formula (1), and when m≧1, [R1(-W1-R2-W2)b]m and (-R1(-X)c)p in formula (1) are bonded via an amide bond W2.

3. The aqueous composition according to claim 1, characterized in that it comprises the block copolymer (A1) in which at least a portion of X in formula (1) is a carboxyl group or a salt thereof.

4. The aqueous composition according to claim 3, characterized in that X, which is a carboxyl group or a salt thereof, is present in an amount of 30 mol% or more relative to the total amount of X in the block copolymer (A1) contained in the aqueous composition.

5. The aqueous composition according to claim 1, characterized in that the remaining mass after removing the Y portion from all block copolymers (A1) contained in the aqueous composition is 50% by mass or more and 90% by mass or less of the total mass of the block copolymers (A1).

6. The aqueous composition according to claim 1, characterized in that the acid value of the block copolymer (A1) is 15 or more and 80 or less.

7. R in formula (1) １ and R ２ The aqueous composition according to claim 1, characterized in that 50 mol% or more of either one or both of the members are divalent hydrocarbon groups having 34 or more carbon atoms.

8. In formula (1) above, at least a part of X is Y, and R ４ The number of carbon atoms is 2 (OR ４ ) ｎ The aqueous composition according to claim 1, characterized in that the mass of the part is 5% by mass or more and 45% by mass or less of the total mass of the block copolymer (A1).

9. It further contains a polyether (B1) with a boiling point of 230°C or higher, represented by the following general formula (2): R ５ -(R ６ ) ｑ -OR ７ ・・・(2) (In the above formula (2), R ５ R is a hydrocarbon group having 1 to 22 carbon atoms. ６ R is a divalent hydrocarbon group having 2 to 4 carbon atoms. ７ (where is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, and q is an integer from 2 to 100.) At least a portion of X in formula (1) is Y, and R in the block copolymer (A1) ４ The number of carbon atoms is 2 (OR ４ ) ｎ The part and R in the polyether (B1) ６ The number of carbon atoms is 2 (OR ６ ) ｑ The aqueous composition according to claim 1, characterized in that the total mass of the parts is 5% by mass or more and 50% by mass or less of the total mass of the block copolymer (A1) and the polyether (B1).

10. It further contains a polyether (B1) with a boiling point of 230°C or higher, represented by the following general formula (2): R ５ -(OR ６ ) ｑ -OR ７ ・・・(2) (In the above formula (2), R ５ R is a hydrocarbon group having 1 to 22 carbon atoms. ６ R is a divalent hydrocarbon group having 2 to 4 carbon atoms. ７ (where is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, and q is an integer from 2 to 100.) At least a portion of X in formula (1) is Y, and R in the block copolymer (A1) ４ The number of carbon atoms is 2 (OR ４ ) ｎ The part and R in the polyether (B1) ６ The number of carbon atoms is 2 (OR ６ ) ｑ The aqueous composition according to claim 1, characterized in that the total mass of the parts is 5% by mass or more and 50% by mass or less of the total mass of the non-volatile components in the aqueous composition.

11. The aqueous composition according to claim 1, characterized in that it contains the block copolymer (A1) in which all of the X in formula (1) are Y.

12. The aqueous composition according to claim 11, characterized in that of the X in the block copolymer (A1) represented by formula (1), 80 mol% or more is Y.

13. It further contains a polyether (B1) with a boiling point of 230°C or higher, represented by the following general formula (2): R ５ -(OR ６ ) ｑ -OR ７ ・・・(2) (In the above formula (2), R ５ R is a hydrocarbon group having 1 to 22 carbon atoms. ６ R is a divalent hydrocarbon group having 2 to 4 carbon atoms. ７ (where is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, and q is an integer from 2 to 100.) The aqueous composition according to claim 1, characterized in that the acid value of the mixture of the block copolymer (A1) and the polyether (B1) is 10 or less.

14. R in formula (1) ３ The aqueous composition according to claim 1, characterized in that the carbon number is 1 to 4.

15. The aqueous composition according to claim 1, characterized in that the block copolymer (A1) where m = 0 in formula (1) is 50% by mass or less of the total mass of the block copolymer (A1) contained in the aqueous composition.

16. It further contains a polyether (B1) with a boiling point of 230°C or higher, represented by the following general formula (2): R ５ -(OR ６ ) ｑ -OR ７ ・・・(2) (In the above formula (2), R ５ R is a hydrocarbon group having 1 to 22 carbon atoms. ６ R is a divalent hydrocarbon group having 2 to 4 carbon atoms. ７ (where is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, and q is an integer from 2 to 100.) At least a portion of X in formula (1) is Y, and R in the block copolymer (A1) ４ The number of carbon atoms is 2 (OR ４ ) ｎ The part and R in the polyether (B1) ６ The number of carbon atoms is 2 (OR ６ ) ｑ The aqueous composition according to claim 1, characterized in that the total mass of the parts is 50% by mass or more and 90% by mass or less of the total mass of the block copolymer (A1) and the polyether (B1).

17. It further contains a polyether (B1) with a boiling point of 230°C or higher, represented by the following general formula (2): R ５ -(OR ６ ) ｑ -OR ７ ・・・(2) (In the above formula (2), R ５ R is a hydrocarbon group having 1 to 22 carbon atoms. ６ R is a divalent hydrocarbon group having 2 to 4 carbon atoms. ７ (where is a hydrogen atom or a hydrocarbon group having 1 to 4 carbon atoms, and q is an integer from 2 to 100.) At least a portion of X in formula (1) is Y, and R in the block copolymer (A1) ４ The number of carbon atoms is 2 (OR ４ ) ｎ The part and R in the polyether (B1) ６ The number of carbon atoms is 2 (OR ６ ) ｑ The aqueous composition according to claim 1, characterized in that the total mass of the parts is 50% by mass or more and 90% by mass or less of the total mass of the non-volatile components in the aqueous composition.

18. A diluted composition obtained by diluting the aqueous composition according to any one of claims 1 to 17, A dilution composition characterized in that the mass ratio of the block copolymer (A1) to water, A1 / water, is 0.01 / 99.99 to 5 / 95.

19. The diluted composition according to claim 18, which differs from the block copolymer (A1) and further contains at least one viscosity modifier selected from the group consisting of urethane-based viscosity modifiers, acrylic-based viscosity modifiers, cellulose-based modified viscosity modifiers, polysaccharide-based viscosity modifiers, amide-based viscosity modifiers, polyamide-based viscosity modifiers, urea-based viscosity modifiers, cellulose nanofibers, and inorganic viscosity modifiers.

20. An aqueous composition according to any one of claims 1 to 17, Luminous pigments and, A water-based paint composition characterized by containing [a certain substance].

21. The water-based paint composition according to claim 20, which differs from the block copolymer (A1) and further contains at least one viscosity modifier selected from the group consisting of urethane-based viscosity modifiers, acrylic-based viscosity modifiers, cellulose-based modified viscosity modifiers, polysaccharide-based viscosity modifiers, amide-based viscosity modifiers, polyamide-based viscosity modifiers, urea-based viscosity modifiers, cellulose nanofibers, and inorganic viscosity modifiers.

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