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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.

1 Abstract

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.

2 Full Text

3 Important Dates

3.1 Priority Date

1981/04/10

3.2 Filing Date

1982/03/22

3.3 Publication Date

1984/11/06

3.4 Grant Date

1984/11/06

4 Inventor

SAKAGUCHI IWAO (JP)

HAYASHI YOSHIAKI (JP)

5 Assignee

SUMITOMO CHEMICAL CO (JP)

6 Country

United States

7 Linked Chemicals

7.1 PubChem Compounds

7.2 PubChem Substances

8 Patent Family

9 Classification

9.1 IPC

C09B19/02 (inventive)

C09B67/10 (inventive)

C09B67/48 (inventive)

9.2 CPC

C09B67/0014 (inventive, first)

C09B19/02 (inventive)

C09B67/0025 (inventive)

10 Citations

11 Cited By

12 Similar Patents

13 Information Sources

  1. Google Patents
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  2. PubChem
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