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Thermoluminescent and superparamagnetic composite particles and labels containing them

A composite particle and thermoluminescence technology, which is applied in the direction of luminescent materials, thermal excitation analysis, heat exchange materials, etc.

Active Publication Date: 2021-02-26
SICPA HLDG SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Counterfeiting is a significant problem with goods like clothing and watches, but becomes even more serious when it affects medicines and pharmaceuticals

Method used

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  • Thermoluminescent and superparamagnetic composite particles and labels containing them
  • Thermoluminescent and superparamagnetic composite particles and labels containing them
  • Thermoluminescent and superparamagnetic composite particles and labels containing them

Examples

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Embodiment Construction

[0045] The details shown herein are by way of example and for purposes of illustration of embodiments of the invention only, and are presented to provide what is believed to be the most useful and readily understandable illustration of the principles and conceptual aspects of the invention. . In this regard, no attempt is made to show the constituent details of the invention in more detail than is necessary for a fundamental understanding of the invention, the description of the accompanying drawings making it apparent to the art how the various forms of the invention may be embodied in practice. Technicians are obvious.

[0046] As used herein, the singular forms "a," "an," and "the" include plural references unless the text clearly dictates otherwise. For example, reference to "a superparamagnetic material" will also mean that mixtures of two or more superparamagnetic materials may be present, unless specifically excluded.

[0047] Unless otherwise indicated, all numerical...

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PUM

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Abstract

A composite particle for identification is disclosed which is suitable for identification / authentication purposes. The particle includes at least one superparamagnetic portion and at least one thermoluminescent portion covered with an insulating portion. Optionally there is also a thermally conductive portion between the superparamagnetic portion and the thermoluminescent portion.

Description

technical field [0001] The present invention relates to composite particles comprising at least one thermoluminescent moiety or core comprising a doped ceramic material and at least one superparamagnetic moiety distributed on the surface of the thermoluminescent moiety, a marker comprising a plurality of composite particles; and It relates to the use of the marking for identification and / or authentication of articles provided with the marking. Background technique [0002] Counterfeiting is no longer a national or regional problem, but a worldwide problem that not only has an impact on manufacturers, but also on consumers. Counterfeiting is a significant problem with goods like clothing and watches, but becomes even more serious when it affects medicines and pharmaceuticals. Thousands of people around the world die every year due to counterfeit medicines. Counterfeiting also has an impact on government revenue because of its impact on taxation of e.g. cigarettes and liquor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K9/00C01G19/02C01G49/08C09K11/02C09K11/68C09K11/77
CPCC09K9/00C09K11/02C09K11/681C09K11/7746C09K5/14C09K11/025G07D7/121C09D11/38C01G19/02C01G49/08C09K11/68C09K11/77B42D25/378G07D7/15G07D7/003B41J2/01C09D11/037C09D11/322C09D11/50G01N21/63G01N21/66G01N21/71
Inventor M·米洛斯-斯考温克
Owner SICPA HLDG SA