CH582737A5CH1061975ACH1061975ACH582737A5CH 582737 A5CH582737 A5CH 582737A5CH 1061975 ACH1061975 ACH 1061975ACH 1061975 ACH1061975 ACH 1061975ACH 582737 A5CH582737 A5CH 582737A5
Authority
CH
Switzerland
Application number
CH1061975A
Original Assignee
Hoechst Ag
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 Hoechst AgfiledCriticalHoechst Ag
Publication of CH582737A5publicationCriticalpatent/CH582737A5/xx
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
C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
C09B67/0001—Post-treatment of organic pigments or dyes
C09B67/0017—Influencing the physical properties by treatment with an acid, H2SO4
C09B67/0019—Influencing the physical properties by treatment with an acid, H2SO4 of phthalocyanines