The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 28, 1982
Filed:
Jun. 19, 1980
Applicant:
Inventors:
Ortwin Schaffer, 6700 Ludwigshafen, DE;
Manfred Herrmann, 6700 Ludwigshafen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ;
U.S. Cl.
CPC ...
8524 ; 8526 ; 8527 ; 8549 ; 8681 ; 8687 ;
Abstract
A powder formulation of the dye of the formula ##STR1## which contains sodium chloride and a condensate of .beta.-naphthalenesulfonic acid with formaldehyde, or a sulfomethylation product which is obtained by condensing phenol, formaldehyde and a sulfite or bisulfite in the presence of sodium hydroxide, using a molar ratio of phenol: formaldehyde: sulfite or bisulfite: sodium hydroxide of 1:1.0-4:0.3-1.6:0.05-0.5. The dye formulation is readily soluble in water and gives speck-free prints and dyeings, with a high color yield.