# US 7,608,653 B2 · Method for accelerating the cross-linking process in paints

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- Number: US 7,608,653 B2
- Document ID: US7608653B2
- Status: Granted
- Kind: B2
- Application number: 11/572,024
- Filed: 2005-07-15
- Published: 2007-08-09
- Granted: 2009-10-27
- Earliest claimed: 2004-07-16
- Assignees: BASF SE
- Inventors: Christian Wulff; Hans-Peter Seelmann-Eggebert; Susanne Stutz; Guenter Oetter
- Web page: https://patentgrep.com/patent/US7608653B2

## CPC

- C09D 171/02: Polyalkylene oxides
- C09D 7/47: Levelling agents
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

The present invention relates to a coating material formulation comprising a mixture comprising as component a1 at least one surfactant and as component a2 at least one compound corresponding to the general formula (I) R1—O—(CH2—CHR2—O)n—(CH2—CH2—O)m—R3 (I) in which R1 is phenyl or substituted phenyl, C4-C14 alkyl, R2 is C1-C8 alkyl, R3 is hydrogen, C1-C6 alkyl, benzoyl, acetyl, acryloyl, methacryloyl, n has an average value of 0 to 10, m has an average value of 1 to 10, where n+m≦10 and m>n, and the alkylene oxide structural units, which are different if appropriate, can be distributed randomly or arranged in blocks, 1%-95% by weight of film-forming binders and resins, 0%-80% by weight of fillers, 0%-40% by weight of pigments, 0%-20% by weight of additives and 0%-90% by weight of organic solvents and/or water, the sum of the weight percentages being 100% by weight, and to the use of the mixture of the invention for lowering the surface tension in a coating material by addition to the coating material.

## Claims

### Claim 1

A coating material formulation comprising
(A) 0.001%-45% by weight of a mixture comprising as component a1 at least one surfactant and as component a2 at least one compound corresponding to general formula (1)
R1—O—(CH2—CHR2—O)n—(CH2—CH2—O)m—R3 (I)
in which
R1 is phenyl or substituted phenyl,
R2 is C1-C8 alkyl,
R3 is C1-C6 alkyl, benzoyl, acetyl, acryloyl or methacryloyl,
n has an average value of 0 to 10,
m has an average value of 1 to 10, where n+m≦10 and m>n, and the alkylene oxide structural units, which are optionally different, can be distributed randomly or arranged in blocks,
wherein the ratio of component a1 to component a2 is 1:4 to 20:1,
(B) 1%-95% by weight of film-forming binders and resins selected from the group consisting of nitrocellulose, alkyd resins, polyester resins, melamine-formaldehyde resins, acrylic resins, aqueous acrylate dispersions, polyurethane resins, polymers of vinyl chloride or vinyl ethers, epoxy acrylates, polyester acrylates, polyether acrylates, urethane acrylates, aldehyde resins, ketone resins, amino resins, carbamide resins, casein and mixtures thereof,
(C) 0%-80% by weight of fillers,
(D) 0%-40% by weight of pigments,
(E) 0%-20% by weight of additives, and
(F) 0%-90% by weight of organic solvents and/or water,
the sum of the weight percentages of components (A) to (F) being 100% by weight,
wherein the mixture (A) at a concentration of 0.2 g/l in water at 23° C. leads to a reduction in the contact angle on steel in comparison to pure water after 1 s by at least 15°, and the mixture in the CNOMO (prEN 14371:2004, 0.1 g/l, 25° C., measurement in water) possesses a foamability of less than 1200 ml during pumped circulation.

### Claim 2 (depends on 1)

The formulation according to claim 1, wherein component a1 of mixture (A) comprises precisely one surfactant.

### Claim 3 (depends on 1)

The formulation according to claim 1, wherein component a1 of mixture (A) comprises at least one nonionic surfactant.

### Claim 4 (depends on 3)

The formulation according to claim 3, wherein component a1 of mixture (A) comprises precisely one nonionic surfactant.

### Claim 5 (depends on 1)

The formulation according to claim 1, wherein n=0 and m=3-9.

### Claim 6 (depends on 1)

A method for lowering the surface tension in a coating material comprising addition of the mixture according to claim 1 to said coating material.

### Claim 7 (depends on 6)

The method according to claim 6, wherein the coating material is a paint formulation.

### Claim 8 (depends on 7)

The method according to claim 7, wherein the paint formulation comprises water.

### Claim 9 (depends on 8)

The method according to claim 8, wherein the paint formulation, based on the total amount of organic solvents and water, comprises not more than 10% by weight of organic solvent.

### Claim 10 (depends on 1)

A method comprising painting a building material with the coating material formulation according to claim 1.