Patent · US Active

Layered structure and films for ID documents having improved properties for laser engraving

US10131178B2 · kind B2 · utility

5Cited by

9References

16Claims

0Family size

Assignee

Covestro Deutschland AG · DE

Inventors

Heinz Pudleiner · Krefeld, DE
Mehmet-Cengiz Yesildag · Leverkusen, DE
Georgios Tziovaras · Neuss, DE
Joerg Nickel · Dormagen, DE
Klaus Meyer · Dormagen, DE

Key dates

Filing date	Jan 23, 2010
Grant date	Nov 20, 2018
Priority date	—
Expiry date	Aug 28, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/269
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The present invention relates to a layer structure having improved properties for laser engraving, to particular embodiments of said layer structures in the form of co-extrusion films, and to security documents, preferably identification documents having said layer structures.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.