发明授权
US5563260A Phthalocyanine solvent dyes 失效
酞菁溶剂染料

Phthalocyanine solvent dyes
摘要:
The compounds of general formula I ##STR1## wherein R represents chlorine or hydroxylPc represents a phthalocyanine radicalR.sub.1 may be alkyl and R.sub.2 may be alkyl ammoniumare excellently suitable for dyeing of plastic materials, paper and inks for ball point pens.
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