Back to results
US 10,500,882 B2Granted
Laser-marked polymer workpiece
AssigneeSaint-Gobain Glass France
InventorOliver Spindler
Life of this patent
Estimating the term…
Abstract
A laser-marked polymer workpiece is described. The workpiece has a transparent component and an opaque component applied to at least one region of the transparent component. A mark is introduced onto a surface of the opaque component facing the transparent component with at least one laser. The mark is introduced, via a laser, through the transparent component. The mark is a lightening of the surface of the opaque component on which the mark was introduced.
Claims14
A laser-marked polymer workpiece, comprising:
- a transparent component having a transmission in visible spectral range equal to or greater than 50%;
- an opaque component having a transmission in the visible spectral range equal to or less than 20%, the opaque component containing at least one colorant and being applied to at least one region of the transparent component, the opaque component comprising a surface facing the transparent component;
- and
- a laser mark on the surface of the opaque component, the laser mark being a brightening of the opaque component,
- wherein the opaque component is devoid of a laser sensitive additive, and
- wherein the at least one colorant comprises at least one black pigment.
3 more elements
A method, comprising:
- using a laser-marked polymer workpiece as a pane or as a part of a pane of means of transportation for travel on land, in the air, or on water, in particular as a windshield, rear window, side window, and/or roof pane of motor vehicles,
- wherein the laser-marked polymer workpiece includes
- a transparent component having a transmission in visible spectral range equal to or greater than 50%,
- an opaque component having a transmission in the visible spectral range equal to or less than 20%, the opaque component containing at least one colorant and being applied to at least one region of the transparent component the opaque component comprising a surface facing the transparent component;
- and
- a laser mark on the surface of the opaque component, the mark being a brightening of the opaque component,
- wherein the opaque component is devoid of a laser sensitive additive, and
- wherein the at least one colorant comprises at least one black pigment.
5 more elements
Dependencies are inferred from the claim text.