Invention Grant
- Patent Title: Copper-containing metal pigments with a metal oxide layer and a plastic layer, method for the production thereof, coating agent and coated object
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Application No.: US14007300Application Date: 2012-03-21
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Publication No.: US09777160B2Publication Date: 2017-10-03
- Inventor: Oliver Struck , Phu Qui Nguyen , Dirk Schumacher , Sebastian Hoefener
- Applicant: Oliver Struck , Phu Qui Nguyen , Dirk Schumacher , Sebastian Hoefener
- Applicant Address: DE Hartenstein
- Assignee: ECKART GMBH
- Current Assignee: ECKART GMBH
- Current Assignee Address: DE Hartenstein
- Agency: The Webb Law Firm
- Priority: DE102011001575 20110325; DE102011103882 20110527
- International Application: PCT/EP2012/054961 WO 20120321
- International Announcement: WO2012/130680 WO 20121004
- Main IPC: C09C1/62
- IPC: C09C1/62 ; A61Q19/00 ; C09D7/12 ; A61K8/02 ; C09C1/00 ; C09C1/66 ; A61Q1/04 ; A61Q1/06 ; A61Q1/10 ; A61Q1/12 ; A61Q3/02 ; A61Q5/06 ; A61K8/81 ; A61Q19/10 ; A61K8/19 ; C08K9/02 ; C08K9/10 ; C08K3/08

Abstract:
The invention relates to copper-containing metal pigments, wherein the copper-containing metal pigments have an elemental copper content of at least 50 wt.-%, relative to the total weight of the uncoated copper-containing metal pigment, wherein the copper-containing metal pigments have at least one enveloping metal oxide layer and at least one enveloping chemically non-reactive plastic layer, wherein the sum of the amounts of the at least one chemically non-reactive plastic layer and of the at least one metal oxide layer lies in a range of from 10 to 50 wt.-%, relative to the weight of the uncoated metal pigment, and the weight ratio of the at least one metal oxide layer to the at least one chemically non-reactive plastic layer lies in a range of from 1:2 to 1:20. The invention furthermore relates to a method for producing these pigments and the use thereof.
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Information query
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