Inventor

BARRACLOUGH RONALD

3 patents

Patents

3 patents

US4313766AFeb 2, 1982

Process for the production of a pigment composition

CIBA GEIGY CORP11 citations71

US4152171AMay 1, 1979

Preparation of α- β- and γ-copper phthalocyanine pigments

CIBA GEIGY CORP11 citations71

US4091028AMay 23, 1978

Production of phthalocyanine green

CIBA GEIGY CORP6 citations60