US Patent 7645336 Azo pigment preparation
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Patent abstract
The invention relates to an azo pigment preparation which is characterized by a content in 4,4′-diaminodicyclohexylmethane, the percentage of the trans,trans-isomer being at least 25%, based on the total amount of 4,4′-diaminodicyclohexylmethane. The azo pigment preparation according to the invention is especially suitable for producing gravure inks having improved optical density, higher luster and no ink show-through in the gravure printing of illustrations.
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Patent Inventor Names
Juergen Gerold0
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US Patent 07645336 Azo pigment preparation US Patent 7645336 Azo pigment preparation
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Patent Number
076453360
Patent Number
76453360
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Patent Jurisdiction
Patent Number
076453360
Date of Patent
January 12, 2010
0Patent Application Number
120869300
Date Filed
November 16, 2006
0Official Website
Patent Primary Examiner
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US Patent 07645336 Azo pigment preparation
Infobox
Is a
Patent jurisdiction
Patent number
07645336
Date of patent
January 12, 2010
Patent application number
12086930
Date Filed
November 16, 2006
Patent primary examiner
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