Mixer system for producing topcoat compositions and coating compositions used as filler

Abstract

A mixer system for producing topcoat compositions and filling compounds which has a volumetric or gravimetric metering plant as a mixing apparatus and at least the following components (a) to (d): at least one pigment-free component (a) for producing at least one topcoat composition (A); at least one component (b) different from (a), for producing at least one coating composition (B) used as a filling compound; a plurality of different pigment pastes (c) different from the components (a), (b), and (d), which in each case independently of one another include at least one binder (c1), at least one organic solvent (c2), and at least one pigment (c3); and a plurality of different, binder-free dye solutions (d). A process for producing topcoat compositions and/or filling compounds with the mixer system, and a method of repairing defects on or in wood with the topcoat compositions and/or filling compounds.

Claims

1. A mixer system comprising a volumetric or gravimetric metering plant as a mixing apparatus and comprising at least the following components (a) to (d) and also optionally (e): (a) at least one pigment-free component (a) for producing at least one topcoat composition (A), with (a) comprising at least one binder (a1) and at least one organic solvent (a2) and optionally at least one matting agent (a3), (b) at least one component (b), different from (a), for producing at least one coating composition (B) used as filling compound, where (b) comprises at least one binder (b1), at least one organic solvent (b2), and at least one filler (b3), where the binder (b1) comprises at least one unsaturated polyester and/or at least one polyurethane, (c) a plurality of different pigment pastes different from the components (a), (b), (d), and optionally (e), which in each case independently of one another comprise at least one binder (c1), at least one organic solvent (c2), and at least one pigment (c3), (d) a plurality of different, binder-free dye solutions, which each independently of one another comprise at least one organic solvent (d1) and at least one dye (d2), and (e) optionally one or more different organic solvents, which may optionally comprise at least one additive and/or at least one crosslinking agent.

2. The mixer system of claim 1, which comprises at least two different components (a), these being at least one component (a-I) for producing at least one topcoat composition (A1), where (a-I) comprises at least one binder (a1) and at least one organic solvent (a2), and at least one component (a-II) for producing at least one topcoat composition (A2) different from (A1), where (a-II) comprises at least one binder (a1), at least one organic solvent (a2), and at least one matting agent (a3).

3. The mixer system of claim 1, wherein the at least one binder (a1) present in the at least one component (a) comprises at least one polymeric resin having at least functional hydroxyl groups and/or carboxyl groups and/or epoxide groups.

4. The mixer system of claim 1, wherein the at least one binder (a1) present in the at least one component (a) comprises at least one polymeric resin having at least functional hydroxyl groups and/or carboxyl groups and/or epoxide groups and being a copolymer of vinyl chloride and at least one ethylenically unsaturated monomer.

5. The mixer system of claim 1, wherein the at least one binder (b1) present in the at least one component (b) comprises at least one unsaturated polyester as polymeric resin, and the at least one organic solvent (b2) likewise present therein is a reactive diluent.

6. The mixer system of claim 1, wherein the at least one binder (c1) present in component (c) comprises at least one polymeric condensation product of urea and/or formaldehyde and at least one aldehyde and/or at least one ketone as polymeric resin.

7. The mixer system of claim 1, wherein the at least one pigment (c3) present in component (c) is selected from the group consisting of inorganic and organic coloring pigments, effect pigments, and mixtures thereof.

8. The mixer system of claim 1, wherein the at least one dye (d2) present in component (d) is selected from the group consisting of basic dyes, fat-soluble dyes, and metal complex dyes, and mixtures thereof.

9. A process for producing topcoat compositions and/or filling compounds and/or clearcoat compositions, the process comprising: (1) mixing at least one component (a) with at least one pigment paste (c) and optionally with at least one dye solution (d) and optionally with at least one component (e) for producing at least one topcoat composition (A1), and/or (2) mixing at least one component (a) with at least one pigment paste (c) and optionally with at least one dye solution (d) and optionally with at least one component (e) for producing at least one topcoat composition (A2), where component (a) in the case of (2) comprises not only the at least one binder (a1) and the at least one organic solvent (a2) but also at least one matting agent (a3), and (3) mixing at least one component (b) with at least one pigment paste (c) and optionally with at least one dye solution (d) and optionally with at least one component (e) for producing at least one coating composition (B) used as filling compound, and (4) optionally mixing at least one component (a) with at least one dye solution (d) and optionally with at least one component (e) for producing at least one coating composition used as a clearcoat composition, with the mixer system of claim 1.

10. The process of claim 9, further comprising obtaining at least one topcoat composition (A1) and/or at least one topcoat composition (A2) different from (A1), and at least one coating composition (B), and also, optionally, at least one clearcoat composition.

11. A method of repairing defects on or in wood, comprising applying the topcoat compositions (A1) and/or (A2) and the coating composition (B) obtained in claim 10 to the defects on or in wood.

12. The method of claim 11, wherein the topcoat composition (A1) is applied as retouch paint, the topcoat composition (A2) is applied as edge paint, and the coating composition (B) is applied as filling compound.

13. A method for adjusting and/or determining shades of color of at least one topcoat composition (A1) and/or of at least one further topcoat composition (A2) different from (A1), and of at least one coating composition (B) used as filling compound, the method comprising: mixing, with the mixer system of claim 1, at least one of the components (a)-(e) and the at least one topcoat composition (A1) and/or the at least one further topcoat composition (A2) different from (A1), to obtain at least one mixed topcoat composition (A1) and/or (A2); and mixing, with the mixer system, at least one of the components (a)-(e) and the at least one coating composition (B) used as filling compound, to obtain at least one mixed coating composition (B) used as filling compound.

14. A method of repairing defects on or in wood, comprising applying the mixed topcoat compositions (A1) and/or (A2) and the mixed coating composition (B) obtained in claim 13 to the defects on or in wood.

15. The method of claim 14, wherein the mixed topcoat composition (A1) is applied as retouch paint, the mixed topcoat composition (A2) is applied as edge paint, and the mixed coating composition (B) is applied as filling compound.

Description

EXAMPLE 1B

(1) TABLE-US-00003 Constituent Product employed Binder (b1) Ludopal 150 Organic solvent (b2) Styrene Filler (b3) Barium sulfate

(2) Example 1b contains 25 wt % (b3), 65 wt % (b1), and 10 wt % of styrene (b2).

EXAMPLE 2B

(3) TABLE-US-00004 Constituent Product employed Binder (b1) Roskydal K 65 Organic solvent (b2) Styrene Filler (b3) Talc

(4) Example 2b contains 20 wt % (b3), 65 wt % (b1), and 15 wt % of styrene (b2).

EXAMPLE 3B

(5) TABLE-US-00005 Constituent Product employed Binder (b1) Synolite 6494 U3 Organic solvent (b2) Styrene Filler (b3) Calcium carbonate

(6) Example 3b contains 15 wt % (b3), 70 wt % (b1), and 15 wt % of styrene (b2).

(7) Roskydal K65, Ludopal 150, and Synolite 6494 U3 are unsaturated polyesters available commercially.

(8) Components (c)

EXAMPLE 1C

(9) TABLE-US-00006 Constituent Product employed Binder (c1) Laropal A81 Organic solvent (c2) Ethanol Pigment (c3) Titanium dioxide

(10) Example 1c contains 15 wt % (c3), 20 wt % (c1), and 75 wt % (c2).

EXAMPLE 2C

(11) TABLE-US-00007 Constituent Product employed Binder (c1) Laropal A81 Organic solvent (c2) Ethyl acetate Pigment (c3) Bayferrox 3920

(12) Example 2c contains 20 wt % (c3), 15 wt % (c1), and 75 wt % (c2).

EXAMPLE 2C

(13) TABLE-US-00008 Constituent Product employed Binder (c1) Laropal A81 Organic solvent (c2) Butyl acetate Pigment (c3) Irgazin Yellow

(14) Example 3c contains 20 wt % (c3), 15 wt % (c1), and 75 wt % (c2).

(15) Laropal A81 is a polymeric condensation product of urea and at least one aldehyde.

(16) Components (d)

EXAMPLE 1D

(17) TABLE-US-00009 Constituent Product employed Organic solvent (d1) Glycol ether Dye (d2) Orasol Yellow

(18) Example 1d contains 98 wt % (d1) and 2 wt % (d2).

EXAMPLE 2D

(19) TABLE-US-00010 Constituent Product employed Organic solvent (d1) Butyl acetate Dye (d2) Orasol Red

(20) Example 2d contains 99 wt % (d1) and 1 wt % (d2).

(21) Components (e)

EXAMPLE 1E

(22) TABLE-US-00011 Constituent Product employed Organic solvent Ethyl acetate Additive Aerosil 200

(23) Example 1e contains 97 wt % of organic solvent and 3 wt % of additive.

EXAMPLE 2E

(24) TABLE-US-00012 Constituent Product employed Organic solvent Butyl acetate Additive Byk 410

(25) Example 2e contains 98 wt % of organic solvent and 2 wt % of additive.

(26) Topcoat Compositions

(27) Topcoat compositions employable as retouch paint are obtainable by mixing component (a-I) with at least one component (c), optionally at least one component (d), and optionally component (e).

(28) Topcoat compositions employable as edge paint are obtainable by mixing component (a-II) with at least one component (c), optionally at least one component (d), and optionally component (e).

(29) Filling Compounds

(30) Coating compositions employable as filling compounds are obtainable by mixing one of components (b) with at least one component (c), optionally at least one component (d), and optionally component (e).

(31) Clearcoat Compositions

(32) Colored clearcoat compositions are obtainable by mixing one of components (a-I) with at least one component (d), and optionally component (e).

(33) The sequence in which the individual components are mixed by means of the metering unit is arbitrary: for example, it is possible first to mix at least one component (c) with at least one component (d) and then to add the resulting mixture to a pre-metered amount of a component (a-I), (a-II), or (b). Before the resulting mixture is prepared it is possible optionally first to admix further components (c), (d) and/or (e).

(34) Alternatively, however, it is also possible directly to prepare the respective desired, binder-containing coating composition comprising at least one of components (a-I), (a-II), or (b).