Part marking of coated plastic substrates
US9254796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2014 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Jan 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24851
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A plastic assembly having a permanent mark therein at a subsurface location and formed after substantial manufacture of the panel assembly. The plastic panel includes a substrate and a coating over the substrate, the coating including a surface that defines an exterior surface of the panel assembly. A mark is located beneath the exterior surface of the panel assembly. In making the panel assembly, a plastic substrate is provided and a protective coating is applied to the substrate. After the step of applying the protective coating, a subsurface portion of panel assembly is exposed to a laser light. The laser light opacifies a subsurface portion of the panel assembly, thereby rendering the mark within the panel assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.