Invention Grant
- Patent Title: Multilayer interference pigment with absorbent central layer
- Patent Title (中): 多层干涉颜料与吸收中心层
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Application No.: US171782Application Date: 1998-10-26
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Publication No.: US06132504APublication Date: 2000-10-17
- Inventor: Matthias Kuntz , Gerhard Pfaff , Gerd Bauer , Christina Schank
- Applicant: Matthias Kuntz , Gerhard Pfaff , Gerd Bauer , Christina Schank
- Applicant Address: DEX
- Assignee: Merck Patent Gesellschaft mit Berschrankter Haftung
- Current Assignee: Merck Patent Gesellschaft mit Berschrankter Haftung
- Current Assignee Address: DEX
- Priority: DEX19707805 19970227
- Main IPC: A61K8/18
- IPC: A61K8/18 ; A61K8/21 ; A61K8/25 ; A61K8/26 ; A61K8/29 ; A61Q1/02 ; C08K3/00 ; C08K9/00 ; C09C1/00 ; C09C3/06 ; C09C3/10 ; C09D5/29 ; C09D5/36 ; C09D7/12 ; C09D11/02 ; C09C1/62
Abstract:
Multilayer interference pigment consisting of a central, absorbing layer and alternating layers of a material of low refractive index and of a metal or of a material of high refractive index either side of the central layer, the material of low refractive index preferably being acrylate and the metal being aluminium or chromium. The absorbing layer consists of a coating system which comprises carbon black or color-imparting absorption pigments.
Public/Granted literature
- US4851135A Apparatus and method for filtering a fluid Public/Granted day:1989-07-25
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