Patents Represented by Attorney Edward McC. Robverts - Justia Patents Search

Patents Represented by Attorney Edward McC. Robverts

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Coated active substances: dye coated with polyethylene oxide-propylene oxide or with ethoxylated stearyldi phenyloxyethyl diethylenetriamine

Patent number: 4961755

Abstract: There are disclosed coated active substances and a process for the preparation thereof, wherein said active substances are dyes, fluorescent whitening agent, photoactivators and/or textile microbicides, if appropriate together with extenders, dispersants, buffers, stabilizers and/or other auxiliaries.

Type: Grant

Filed: December 19, 1988

Date of Patent: October 9, 1990

Assignee: Ciba-Geigy Corporation

Inventors: Beat Bruttel, Petr Kvita