Acrylic resin composition, method for producing same, and acrylic resin film

1. An acrylic resin film obtained by molding an acrylic resin composition comprising an acrylic polymer (A), an anti-blocking agent (B), and a non-crosslinked acrylic polymer (C),

wherein the non-crosslinked acrylic polymer (C) is a polymer of a monomer component including 50% to 100% by mass of methyl methacrylate (c1), the polymer having a reduced viscosity of 0.2 to 2 L/g,

wherein the acrylic resin film has an arithmetic mean roughness Ra on at least one surface of 9 to 16 nm, and a maximum height roughness Rz on at least one surface of 300 to 1550 nm, and

wherein the acrylic resin film has a value of haze measured according to JIS K7 105 of 0.8 to 2%, and a film thickness of 20 to 150 μm.

2. The acrylic resin film according to claim 1 , wherein a content of the anti-blocking agent (B) is 0.01 parts to 0.5 parts by mass, and a content of the non-crosslinked acrylic polymer (C) is 0.1 parts to 5 parts by mass, relative to 100 parts by mass of the acrylic polymer (A).

3. The acrylic resin film according to claim 1 , wherein an average primary particle size of the anti-blocking agent (B) is 5 nm to 10 μm.

4. The acrylic resin film according to claim 1 , wherein the anti-blocking agent (B) is in the form of inorganic particles.

5. The acrylic resin film according to claim 1 , wherein the anti-blocking agent (B) is silicon dioxide.

6. The acrylic resin film according to claim 1 , wherein the acrylic polymer (A) includes at least one of a rubber-containing polymer (A1) and a non-rubber-containing polymer (A2).

7. The acrylic resin film according to claim 6 , wherein a percentage content of the rubber-containing polymer (A1) in the acrylic polymer (A) is 10% to 100% by mass, and a percentage content of the non-rubber-containing polymer (A2) is 90% to 0% by mass.

8. The acrylic resin film according to claim 6 , wherein a reduced viscosity of the non-rubber-containing polymer (A2) is 0.03 to 0.1 L/g.

9. The acrylic resin film according to claim 1 , having a tensile modulus of 800 to 1500 MPa.

10. The acrylic resin film according to claim 1 , having a value of glossiness measured according to JIS K7105 of 135% or more.

11. The acrylic resin film according to claim 1 , wherein a content of the anti-blocking agent (B) is 0.02 parts to 0.4 parts by mass relative to 100 parts by mass of the acrylic polymer (A).

12. The acrylic resin film according to claim 1 , wherein a content of the non-crosslinked acrylic polymer (C) is 0.5 parts to 4 parts by mass relative to 100 parts by mass of the acrylic polymer (A).

13. The acrylic resin film according to claim 1 , having a tensile modulus of 900 to 1300 MPa.

14. The acrylic resin film according to claim 1 , having a film thickness of 50 to 100 μm.

15. The acrylic resin film according to claim 6 , wherein the rubber-containing polymer (A1) is obtained by polymerizing a monomer component (b) including 51% by mass or more of an alkyl methacrylate in the presence of a rubber polymer obtained by polymerizing a monomer component (a) including 30% by mass or more of an alkyl acrylate.

16. The acrylic resin film according to claim 6 , wherein the non-rubber-containing polymer (A2) is a polymer having a monomer component composed of 50% to 100% by mass of an alkyl methacrylate having an alkyl group having 1 to 4 carbon atoms and 0% to 50% by mass of a vinyl monomer.

17. The acrylic resin film according to claim 6 , wherein the non-rubber-containing polymer (A2) is a polymer having a monomer component composed of 70% to 100% by mass of an alkyl methacrylate having an alkyl group having 1 to 4 carbon atoms and 0% to 30% by mass of a vinyl monomer.

18. The acrylic resin film according to claim 16 , wherein the non-rubber-containing polymer (A2) has a reduced viscosity of 0.03 to 0.1 L/g.

19. The acrylic resin film according to claim 16 , wherein the non-rubber-containing polymer (A2) has a reduced viscosity of 0.03 to 0.08 L/g.