WO2023119034 - DIFFRACTIVE EFFECT PIGMENTS HAVING A REFLECTIVE CORE AND SEMICONDUCTOR COATINGS
National phase entry:
Publication Number
WO/2023/119034
Publication Date
29.06.2023
International Application No.
PCT/IB2022/061829
International Filing Date
06.12.2022
Title **
[English]
DIFFRACTIVE EFFECT PIGMENTS HAVING A REFLECTIVE CORE AND SEMICONDUCTOR COATINGS
[French]
PIGMENTS À EFFET DIFFRACTIF AYANT UN CŒUR RÉFLÉCHISSANT ET DES REVÊTEMENTS SEMICONDUCTEURS
Applicants **
ECKART AMERICA CORPORATION
Inventors
SCHMITT, Devin
Priority Data
21216797.7
22.12.2021
EP
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter II
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2113 | |
| EPO | Filing, Examination, Granting | 9637 | |
| Japan | Filing, Examination, Granting | 2246 | |
| South Korea | Filing, Examination, Granting | 2254 | |
| USA | Filing, Examination, Granting | 5340 |
Total:
21,590
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
The present invention relates to a flaky diffractive effect pigment having a diffractive structure and comprising a flake of a highly reflective material having a first major interface and opposed to this first interface a second major interface, and at least one side surface and directly adjacent on one or of both of these 5major interfaces a layer of a semiconducting material having a bandgap of 0.1 to 2.5 eV. The diffractive effect pigment may be further coated with a coating which is optically non-active in the visible wavelength region.[French]
La présente invention concerne un pigment écailleux à effet diffractif ayant une structure diffractive et comprenant une écaille en un matériau hautement réfléchissant ayant une première interface principale et, opposée à cette première interface, une seconde interface principale, et au moins une surface latérale et, directement adjacente à l’une de ces interfaces principales ou aux deux, une couche d’un matériau semiconducteur ayant une largeur de bande interdite de 0,1 à 2,5 eV. Le pigment à effet diffractif peut en outre être revêtu d’un revêtement qui est optiquement non actif dans la région des longueurs d’onde visibles.