US 7,479,308 B2 · Process for producing multicoat color and/or effect paint systems curable thermally and with actinic radiation

Abstract

A process for producing multicoat paint systems by (I) applying a dual-cure primer (A) curable thermally and with actinic radiation to a substrate to give a primer film (A), (II) exposing the primer film (A) to actinic radiation to give a partially cured primer film (A), (III) applying a pigmented coating material (B) curable thermally and/or a pigmented dual-cure coating material (B) to the partially cured primer film (A) to give at least one pigmented film (B), (IV) exposing the dual-cure film (B) to actinic radiation to give a partially cured film (B), (V) applying a clearcoat material (C) curable with actinic radiation and/or a dual-cure clearcoat material (C) to the film (B) to give a clearcoat and/or a dual-cure clearcoat film (C), (VI) exposing the clearcoat film(s) (C) to actinic radiation to give a dual-cure clearcoat (C) and/or a partially cured clearcoat film (C), and (VII) subjecting the films (A), (B), and (C) to joint thermal curing when still only partially cured.

Claims20

Dependent claims

A process for producing multicoat color and/or effect paint systems comprising

(A) at least one primer,
(B) at least one color and/or effect basecoat, and
(C) at least one clearcoat
comprising
(I) applying at least one primer (A) curable thermally and with actinic radiation to a substrate to give at least one primer film (A),
(II) exposing the at least one primer film (A) to actinic radiation to give at least one partially cured primer film (A) which can still be thermally cured,
(III) applying at least one pigmented coating material (B) curable thermally to the outer surface of the partially cured at least one primer film (A) to give at least one pigmented film (B) which can still be cured thermally
(IV) applying at least one clearcoat material (C) curable with actinic radiation to the outer surface of the at least one pigmented film (B) to give at least one clearcoat film (C) curable with actinic radiation,
(V) exposing the at least one clearcoat film (C) curable with actinic radiation to actinic radiation to give at least one clearcoat cured with actinic radiation, and
(VI) subjecting the at least one primer film (A), and the at least one pigmented film (B), to joint thermal curing.

7 more elements

Dependencies are inferred from the claim text.

Process for producing multicoat color and/or effect paint systems curable thermally and with actinic radiation

Life of this patent

Process for producing multicoat color and/or effect paint systems curable thermally and with actinic radiation

Life of this patent

Abstract

Claims20