US Patent 7892345 Method for producing transparent Pigment Violet 23
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Patent abstract
The invention accordingly relates to a method for preparing transparent C.I. Pigment Violet 23 by salt kneading a Pigment Violet 23-crude in the presence of a crystalline salt and an organic liquid. Said method is characterized in that the organic liquid is propylene carbonate.
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Patent Inventor Names
Leonhard Unverdorben0
Wolfgang Hoyer0
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US Patent 07892345 Method for producing transparent Pigment Violet 23 US Patent 7892345 Method for producing transparent Pigment Violet 23
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Patent Number
078923450
Patent Number
78923450
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Official Website
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Patent Jurisdiction
Patent Number
078923450
Date of Patent
February 22, 2011
0Patent Application Number
125317970
Date Filed
February 28, 2008
0Official Website
Patent Primary Examiner
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US Patent 07892345 Method for producing transparent Pigment Violet 23
Infobox
Is a
Patent jurisdiction
Patent number
07892345
Date of patent
February 22, 2011
Patent application number
12531797
Date Filed
February 28, 2008
Patent primary examiner
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