COATING COMPOSITION AND PAINT PRODUCED FROM SAME

Abstract

The invention relates to a coating composition based on organic or water-based solvent, containing at least one binder (A), optionally at least one cross-linking agent (B), and at least one matting agent (M) based on silicon dioxide (SiO.sub.2), wherein the coating composition contains a combination of a) a matting agent based on silicon dioxide (SiO.sub.2) that is surface-modified with one or more waxes, b) an organic matting agent, and c) polyamide particles, and a clear lacquer comprising a coating composition of this type. In this way, automobile series paints can be produced having targeted, adjustable low gloss.

Claims

1. A coating composition based on an organic solvent or water-based, comprising at least one binder (A), optionally at least one cros slinking agent (B), and at least one matting agent (M) based on silicon dioxide (SiO.sub.2), wherein the coating composition comprises a combination of a) a matting agent based on silica (SiO.sub.2) surface-modified with one or more waxes, and b) an organic matting agent, and c) polyamide particles.

2. The coating composition according to claim 1, wherein the matting agent cased on (SiO.sub.2) is a matting agent based on silicic acid.

3. The coating composition according to claim 1, wherein the coating composition contains the matting agent based on (SiO.sub.2) in a range between 1 weight-% and 5 weight-%, based on the total weight of the coating composition.

4. The coating composition according to claim 1, wherein the organic matting agent is a matting agent of urea-oxomethane polymer basis.

5. The coating composition according to claim 1, wherein the coating composition contains the organic matting agent on urea-oxomethane-polymer basis in a range of between 1 weight-% and 7 weight-%, based on the total weight of the coating composition.

6. The coating composition according to claim 1, wherein the coating composition contains the polyamide particles in a range of between 3 weight-% and 12 weight-%, based on the total weight of the coating composition.

7. A coating prepared by cross linking of a coating composition according to claim 1.

8. The coating according to claim 7, wherein the cross linked coating has a layer thickness in a range of between 45 m and 60 m.

9. A clear coating for the automotive, commercial vehicle, and/or repair coating and/or for the coating of body interior and/or exterior parts, prepared by coating with a coating composition according to claim 1.

10. The coating composition according to claim 4, wherein said matting agent of urea-methanol polymer basis is methylene-diaminomethylether-polycondensate.

Description

EXAMPLE 1

[0034] A coating composition on the basis of organic solvents or water-based, containing at least one binder (A) and optionally at least one cross linking agent (B), as well as: [0035] a) 1 weight-% to 5 weight-% Acematt OK 412 (from Degussa) [0036] b) 1 weight-% to 7 weight-% Deutron MK (Deutron), and [0037] c) 3 weight-% to 12 weight-% Rilsan D50 (Arkema),
each based on the total weight of the coating composition.

[0038] After the application and curing of the coating composition a degree of gloss of the so achieved clear coating was measured in the range of 2 to 15 gloss units, measured in an angle of 60 with a usual gloss meter, at a structuring of the surface in the range of between 30 m and 60 m. With an application of the resultant clear coating in a layer thickness of 50 m R.sub.a values (R.sub.a is the arithmetic middle value according to DIN EN ISO 4287:2010) between 10 m and 30 m could be measured. With an application of the resultant clear coating in a layer thickness of 35 m R.sub.a values (R.sub.a is the arithmetic middle value according to DIN EN ISO 4287:2010) between 20 m and 50 m were measured.

EXAMPLE 2

[0039] A coating composition on the basis of organic solvents or water-based, containing at least one binder (A) and optionally at least one cross linking agent (B), as well as: [0040] a) 1 weight-% to 5 weight-% Ace matt OK 607 (from Degussa) [0041] b) 1 weight-% to 7 weight-% Deutron MK (Deutron), and [0042] c) 3 weight-% to 12 weight-% Rilsan D60 (Arkema),
each based on the total weight of the coating composition.

[0043] After the application and curing of the coating composition a degree of gloss of the so achieved clear coating was measured in the range of 2 to 15 gloss units, measured in an angle of 60 with a usual gloss meter, at a structuring of the surface in the range of between 30 m and 60 m. With an application of the resultant clear coating in a layer thickness of 50 m R.sub.a values (R.sub.a is the arithmetic middle value according to DIN EN ISO 4287:2010) between 10 m and 30 m could be measured. With an application of the resultant clear coating in a layer thickness of 35 m R.sub.a values (R.sub.a is the arithmetic middle value according to DIN EN ISO 4287:2010) between 20 m and 50 m were measured.