Cards with special texture and color
US10452967B2 · kind B2 · utility
4Cited by
30References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2015 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Mar 10, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2519/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A multi layered card embodying the invention includes an outer layer of an amorphous laser reactive copolymer material which is embossed with a selected pattern at a selected temperature which is above the glass transition temperature, Tg, of the copolymer and below its melting temperature, Tm. So embossed, the selected pattern is set in the copolymer layer, and its external shape cannot be changed from the embossed form to which it was set at the selected temperature, without destroying the selected pattern. The outer layer may be laminated with the other layers of the card and laser engraved before or after lamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.