Invention Grant
- Patent Title: Assemblies and processes for producing optical effect layers comprising oriented non-spherical oblate magnetic or magnetizable pigment particles
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Application No.: US16641962Application Date: 2018-08-23
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Publication No.: US11420230B2Publication Date: 2022-08-23
- Inventor: Cédric Amerasinghe , Edgar Mueller , Evgeny Loginov , Mathieu Schmid , Claude-Alain Despland
- Applicant: SICPA HOLDING SA
- Applicant Address: CH Prilly
- Assignee: SICPA HOLDING SA
- Current Assignee: SICPA HOLDING SA
- Current Assignee Address: CH Prilly
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: EP17187930 20170825,EP17202275 20171117,EP18163092 20180321
- International Application: PCT/EP2018/072751 WO 20180823
- International Announcement: WO2019/038369 WO 20190228
- Main IPC: B05D3/00
- IPC: B05D3/00 ; B42D25/369 ; B42D25/373 ; B42D25/387 ; B05D3/06 ; B05D5/06 ; B41F19/00 ; B41M3/14
Abstract:
The present invention relates to the field of optical effect layers (OEL) comprising magnetically oriented non-spherical oblate magnetic or magnetizable pigment particles on a substrate, spinneable magnetic assemblies and processes for producing said optical effect layers (OEL). In particular, the present invention relates to spinneable magnetic assemblies and processes for producing said OELs as anti-counterfeit means on security documents or security articles or for decorative purposes.
Public/Granted literature
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