Patent · US Active

Method for producing pigment fragments with a predefined internal and/or external contour using a crack-forming layer, and pigment fragments

US11802212B2 · kind B2 · utility

0Cited by

4References

14Claims

0Family size

Assignee

GIESECKE+DEVRIENT CURRENCY TECHNOLOGY GMBH · DE

Inventors

Maik Rudolf Johann SCHERER · Grainau, DE
Kai Herrmann SCHERER · Munich, DE
Raphael Dehmel · Neubeuern, DE
Christoph HUNGER · Hausham, DE

Key dates

Filing date	Jun 5, 2018
Grant date	Oct 31, 2023
Priority date	—
Expiry date	Jun 1, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T156/11
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A method for producing pigments comprises the steps of creating a first layer on a substrate, structuring the first layer and detaching the pigments from the substrate. In the present case, the first layer is a crack-forming layer, so that the first layer is structured by the arising of cracks. Prior to detaching the pigments, a pigment layer is applied onto the first layer structured by the cracks.

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