Invention Grant
- Patent Title: Multilayer effect pigment
- Patent Title (中): 多层效应颜料
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Application No.: US11351417Application Date: 2006-02-10
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Publication No.: US07993443B2Publication Date: 2011-08-09
- Inventor: Daniel S. Fuller , Curtis J. Zimmermann
- Applicant: Daniel S. Fuller , Curtis J. Zimmermann
- Applicant Address: US NJ Florham Park
- Assignee: BASF Catalysts LLC
- Current Assignee: BASF Catalysts LLC
- Current Assignee Address: US NJ Florham Park
- Agency: Frenkel & Associates, PC
- Main IPC: C09C1/36
- IPC: C09C1/36 ; C09C1/00 ; C09C1/04 ; C04B14/20 ; C04B14/04 ; B32B5/16 ; B32B9/00

Abstract:
A multilayer effect pigment includes a transparent substrate, a layer of high refractive index material on the substrate, and alternating layers of low refractive index and high refractive index materials on the first layer, the total number of layers being an odd number of at least three, all adjacent layers differing in refractive index by at least about 0.2 and at least one of the layers having an optical thickness which is different from all of the other layers. The resulting multilayer effect pigment is not a quarter-wave stack.The present multilayer effect pigment may be used in cosmetics or personal care products.
Public/Granted literature
- US20060156957A1 Multilayer effect pigment Public/Granted day:2006-07-20
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