Patent · US Active

Laser markable security film

US9067451B2 · kind B2 · utility

1Cited by

45References

17Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Carlo Uyttendaele · Berchem, BE
Bart Aerts · Rumst, BE
Bart Waumans · Mortsel, BE
Ingrid Geuens · Emblem, BE

Key dates

Filing date	Dec 17, 2010
Grant date	Jun 30, 2015
Priority date	—
Expiry date	Dec 3, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41M2205/38
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A security film including, in order, a transparent biaxially oriented polyethylene terephthalate support (1), a subbing layer (2, 2′) and a laser markable layer (3, 3′) comprising a laser additive and one or more polymers selected from the group consisting of polystyrene, polycarbonate and styrene acrylonitrile.

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