Decoratively enameled plastic molded parts for motor vehicles
AssigneeE. I. DuPont de Nemours and Company
InventorsJoachim Blum, Manfred Mass, Helga Stegen
Life of this patent
Estimating the term…
Abstract
Plastics moulded parts, suitable for the motor vehicle sector, consisting of a transparent plastics material the rear face of which is provided with a colour- and/or effect-producing lacquer.
Claims9
A process for applying a color effect-producing layer on a substantially transparent plastic molded part having a front face and a rear face, wherein the rear face is turned away from an observer, comprising the steps of:
- (a) optionally pretreating the rear face of the substantially transparent plastic molded part with a pretreatment selected from the group consisting of a physical/chemical treatment, an adhesion-promoting coating and combinations thereof;
- and
- (b) spray-applying at least one opaque lacquer layer disposed directly upon the rear face of the substantially transparent plastic molded part to produce a lacquer layer having a thickness of 10 to 30 μm;
- wherein the opaque lacquer is selected from the group consisting of colored lacquer, effect-producing lacquer and combinations thereof, and further wherein the plastic molded part is selected from the group consisting of bumpers, side panels, sills, mirror housing, door handles, engine bonnets, boot lids, tailgates, wings, spoilers and hub caps.
A process for producing a transparent plastic molded part by applying a color effect-producing layer on a substantially transparent plastic molded part having a front face and a rear face,
- wherein the rear face is turned away from an observer, comprising the steps of:
- (a) optionally pretreating the rear face of the substantially transparent plastic part with a pretreatment selected from the group consisting of a Physical/chemical treatment, an adhesion-promoting coating and combinations thereof;
- and
- (b) spray-applying at least one opaque lacquer layer disposed directly upon the rear face of the substantially transparent plastic molded part to produce a lacquer layer having a thickness of 10 to 30 μm:
- wherein the opaque lacquer is selected from the group consisting of colored lacquer, effect-producing lacquer and combinations thereof, and further wherein the transparent plastic molded part is selected from the group consisting of bumpers, side panels, sills, mirror housing, door handles, engine bonnets, boot lids, tailgates, wings, spoilers and hub caps and comprises a further step of applying an additional layer to the opaque lacquer layer disposed on the rear surface of the substantially transparent plastic molded part wherein the additional layer is selected from the group consisting of a transparent lacquer, an opaque lacquer, a transparent non-tacky film and an opaque non-tacky film.
Dependencies are inferred from the claim text.