GB748484A - Improvements in and relating to pigments - Google Patents

Improvements in and relating to pigments

Info

Publication number
GB748484A
GB748484A GB726552A GB726552A GB748484A GB 748484 A GB748484 A GB 748484A GB 726552 A GB726552 A GB 726552A GB 726552 A GB726552 A GB 726552A GB 748484 A GB748484 A GB 748484A
Authority
GB
United Kingdom
Prior art keywords
dyestuff
condensation
formaldehyde
urea
per cent
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
GB726552A
Inventor
Thomas Norman Gaunt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB726552A priority Critical patent/GB748484A/en
Publication of GB748484A publication Critical patent/GB748484A/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
    • C09B63/00—Lakes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

Pigments comprise the non-resinous, white, amorphous, and insoluble condensate of molecular weight not exceeding 250 derived by condensation of urea, thiourea, guanidine, biuret, dicyandiamide, and melamine with formaldehyde in acid solution and a dyestuff or other colouring matter present to the extent of .01 per cent to 20 per cent on the weight of the condensation product. The condensation may be carried out in presence of the dyestuff or completed previously. The dyestuff may be fluorescent. In examples, urea and formaldehyde are condensed in presence of hydrochloric acid, and each of the following dyes:-(1) Rhodamine B and G, (2) Brilliant Sulphoflavine FF, (3) Patent Blue A, (4) chlorinated copper phthalocyanine, (5) a mixture of copper phthalocyanine and 2.21-dihydroxy-napththaldazine, (6) Acid Orange G.
GB726552A 1952-04-20 1952-04-20 Improvements in and relating to pigments Expired GB748484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB726552A GB748484A (en) 1952-04-20 1952-04-20 Improvements in and relating to pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB726552A GB748484A (en) 1952-04-20 1952-04-20 Improvements in and relating to pigments

Publications (1)

Publication Number Publication Date
GB748484A true GB748484A (en) 1956-05-02

Family

ID=9829787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB726552A Expired GB748484A (en) 1952-04-20 1952-04-20 Improvements in and relating to pigments

Country Status (1)

Country Link
GB (1) GB748484A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989453A (en) * 1990-05-11 1999-11-23 Societe Nouvelle De Chimie Industrielle S.A. Process for the manufacture of pigments, especially fluorescent pigments
EP1172417A2 (en) * 2000-07-14 2002-01-16 Clariant International Ltd. Process of making finely divided opaque particles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5989453A (en) * 1990-05-11 1999-11-23 Societe Nouvelle De Chimie Industrielle S.A. Process for the manufacture of pigments, especially fluorescent pigments
EP1172417A2 (en) * 2000-07-14 2002-01-16 Clariant International Ltd. Process of making finely divided opaque particles
US6462128B1 (en) 2000-07-14 2002-10-08 Clariant International Ltd. Process of making finely divided opaque particles
EP1172417A3 (en) * 2000-07-14 2004-01-07 Clariant International Ltd. Process of making finely divided opaque particles

Similar Documents

Publication Publication Date Title
GB520573A (en) Process for the manufacture of basic condensation products
GB748484A (en) Improvements in and relating to pigments
GB1477757A (en) Melamine resin condensation products and their production
ES245547A1 (en) Metallized monoazodyestuffs containing a dihalopyrimidyl group
GB792616A (en) Improvements in and relating to pigments
ES364541A1 (en) Reactive disazo triazine dyestuffs made from a diamino diphenylure disulphonic acid
GB414664A (en) The manufacture of new dyestuffs of the anthraquinone series
GB747454A (en) Improvements in the production of vat dyestuffs of the anthraquinone series
DE895439C (en) Improvement of the fastness properties of direct dyeing and the like like
ES368032A1 (en) Unsymmetrical disazo pigments derived from dichlorobenzidine and acetylarylamides
GB672906A (en) Vat dyestuffs of the acedianthrone series
GB1282981A (en) Dyestuff condensation products
US2955050A (en) Water fastness of metal lakes of azo dyestuffs containing sulphonic acid groups
GB1401750A (en) Water-soluble benzene disazo dyestuffs
AT162947B (en) Process for the preparation of new condensation products
GB576562A (en) Manufacture of resinous condensation products, more especially useful for the after-treatment of dyeings
GB1012487A (en) New, water-soluble dyestuffs of the azo- and anthraquinone series containing the glyoxaldiureine radical and process for the preparation thereof
Azuma et al. Studies on the Unshrinkable Treatment for Woolen Goods I. Treatment with Thiourea-Formaldehyde Resin
CH402416A (en) Process for the production of colored condensation products
GB897484A (en) New insoluble monoazo colouring matters containing isopropylsulphamyl groups
GB678522A (en) A new vat dyestuff of the acedianthrone series
GB1119276A (en) New azo dyestuffs and processes for their manufacture and use
GB900950A (en) New water-soluble dyestuffs containing methylol groups and dyeings obtainable with these dyestuffs
GB949502A (en) New azophthalocyanine dyestuffs and their manufacture and use
GB265767A (en) The manufacture of new monoazo dyestuffs