# US 10,246,609 B2 · Pigmented coating material and process for producing a multi-coat paint system using the pigmented coating material

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- Number: US 10,246,609 B2
- Document ID: US10246609B2
- Status: Granted
- Kind: B2
- Application number: 14/380,293
- Filed: 2013-02-27
- Published: 2015-02-12
- Granted: 2019-04-02
- Earliest claimed: 2012-02-28
- Assignees: BASF Coatings GmbH
- Applicants: BASF Coatings GmbH
- Inventors: Jorn Lavalaye; Carmen Kunszt; Norbert Löw
- Web page: https://patentgrep.com/patent/US10246609B2

## CPC

- C09D 179/04: Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C09D 5/38: Paints containing free metal not provided for above in groups C09D5/00 - C09D5/36
- C09D 7/20: Diluents or solvents
- C09D 7/41: Organic pigments; Organic dyes
- Y10T 428/264: Up to 3 mils
- Y10T 428/31678: Of metal
- 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)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Described is a solvent-based pigmented coating composition comprising (A) at least one binder comprising at least one acrylate polymer, polyurethane polymer, or a polyester, (B) at least one crosslinking agent selected from the group of blocked polyisocyanates and amino resins, (C) at least one pigment, and (D) at least one organic solvent selected from the group of alkyl acetates or alkyl monoglycol ethers, wherein alkyl is n-pentyl or n-hexyl, and wherein the solids content of the coating composition is at least 35% by weight.

## Claims

### Claim 1

A solvent-based pigmented coating composition comprising
(A) at least one binder comprising at least one acrylate polymer, polyurethane polymer, or polyester,
(B) at least one crosslinking agent selected from the group of blocked polyisocyanates and amino resins,
(C) at least one pigment, and
(D) at least one organic solvent that is n-pentyl acetate, n-pentyl glycol, or n-hexyl glycol,
wherein the solids content of the coating composition is at least 35% by weight.

### Claim 2

A multicoat paint system for a substrate, the system comprising:
a clearcoat having a dry film thickness in the range of 10 to 40 micrometers;
a basecoat having a dry film thickness in the range of 3 to 40 micrometers; and
optionally a primer coat and a primer-surfacer coat below the basecoat;
wherein the basecoat is formed from a solvent-based pigmented coating composition comprising:
(A) at least one binder comprising at least one acrylate polymer, polyurethane polymer, or polyester,
(B) at least one crosslinking agent selected from the group of blocked polyisocyanates and amino resins,
(C) at least one pigment, and
(D) a first organic solvent that is n-pentyl acetate, n-pentyl glycol, or n-hexyl glycol and a second organic solvent comprising butyl acetate;
wherein the solids content of the solvent-based pigmented coating composition is at least 35% by weight.