GB925409A - Improvements in or relating to pigments of the 1,4,5,8-naphthalene tetracarboxylic acid-bis(imidazole) series - Google Patents

Improvements in or relating to pigments of the 1,4,5,8-naphthalene tetracarboxylic acid-bis(imidazole) series

Info

Publication number
GB925409A
GB925409A GB3059161A GB3059161A GB925409A GB 925409 A GB925409 A GB 925409A GB 3059161 A GB3059161 A GB 3059161A GB 3059161 A GB3059161 A GB 3059161A GB 925409 A GB925409 A GB 925409A
Authority
GB
United Kingdom
Prior art keywords
tetracarboxylic acid
trans
pigments
diamino
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3059161A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Interchemical Corp
Original Assignee
Interchemical Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Interchemical Corp filed Critical Interchemical Corp
Publication of GB925409A publication Critical patent/GB925409A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B57/00—Other synthetic dyes of known constitution
    • C09B57/12—Perinones, i.e. naphthoylene-aryl-imidazoles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)

Abstract

Scarlet enamels are made by milling a pigment consisting of the trans-isomer of the condensation product of 1:4:5:8-naphthalene-tetracarboxylic acid and o-phenylene-diamine, 3:4-diaminotoluene or 3:4-diamino-chlorobenzene with a 50% xylene solution of a coconut oil alkyd resin, mixing the paste obtained with additional alkyd resin in xylene and a xylenetoluene-butanol solution of a melamine-formaldehyde resin. This enamel may be mixed with a white enamel containing the two resins mentioned above and titanium dioxide.ALSO:Naphthalene-tetracarboxylic acid-bis-(imidazole) pigments are made by condensing 1:4:5:8naphthalene-tetracarboxylic acid with o-phenylene-diamine, 3:4-diamino-toluene or 3:4-diamino-chlorobenzene, forming the potassium salts of the mixture of cis- and trans-isomers so obtained, separating the water-insoluble trans-isomer salt from the water-soluble cisisomer salt, hydrolysing the trans-isomer salt in water at 75 DEG C. to about 100 DEG C. for one to two hours and separating the pigment so obtained. Examples are given. The pigments colour lacquers and enamels in scarlet shades.
GB3059161A 1960-08-24 1961-08-24 Improvements in or relating to pigments of the 1,4,5,8-naphthalene tetracarboxylic acid-bis(imidazole) series Expired GB925409A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5150360A 1960-08-24 1960-08-24

Publications (1)

Publication Number Publication Date
GB925409A true GB925409A (en) 1963-05-08

Family

ID=21971702

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3059161A Expired GB925409A (en) 1960-08-24 1961-08-24 Improvements in or relating to pigments of the 1,4,5,8-naphthalene tetracarboxylic acid-bis(imidazole) series

Country Status (1)

Country Link
GB (1) GB925409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183842A (en) * 1976-07-22 1980-01-15 Dainippon Ink & Chemicals, Inc. Method for clear-coloring of linear aromatic polyester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4183842A (en) * 1976-07-22 1980-01-15 Dainippon Ink & Chemicals, Inc. Method for clear-coloring of linear aromatic polyester

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