Patent · US Active

Laser markable compositions, articles and documents

US10144239B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Hubertus Van Aert · Pulderbos, BE
Johan Loccufier · Zwijnaarde, BE
Dirk Kokkelenberg · Sint-Niklaas, BE

Key dates

Filing date	May 11, 2016
Grant date	Dec 4, 2018
Priority date	—
Expiry date	May 11, 2036

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB42D25/387
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A laser markable composition includes (a) an aqueous medium; (b) polymeric particles dispersed in the aqueous medium; (c) a color developing agent or color developing agent precursor; and (d) an optothermal converting agent; characterized in that a leuco dye is covalently bonded to the polymeric particles.

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