Process for producing dioxazine violet pigment
Patent
US-4481358-A
Inventor
SAKAGUCHI IWAO (JP)
HAYASHI YOSHIAKI (JP)
Assignee
SUMITOMO CHEMICAL CO (JP)
Country
United States
Dates
- Priority:1981/04/10
- Grant:1984/11/06
Description
This web page summarizes information in PubChem about patent US-4481358-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.
A process for producing stable ( beta -type) dioxazine violet pigment having superior gloss and tinting strength to the metastable ( alpha -type or a type analogous thereto) dioxazine violet pigment, by mixing an aqueous suspension of a metastable dioxazine violet pigment with an acetate or ketone compound and then heating the mixture. The metastable dioxazine violet pigment may be that obtained according to the conventional method, and employable in situ.
1981/04/10
1982/03/22
1984/11/06
1984/11/06
SAKAGUCHI IWAO (JP)
HAYASHI YOSHIAKI (JP)
SUMITOMO CHEMICAL CO (JP)
United States
- CH-647539-A5
- DE-3211607-A1
- DE-3211607-C2
- US-4481358-A
C09B19/02 (inventive)
C09B67/10 (inventive)
C09B67/48 (inventive)
C09B67/0014 (inventive, first)
C09B19/02 (inventive)
C09B67/0025 (inventive)
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