Dyestuff preparations, processes for their production and their use for dyeing plastics

US4386195A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Fritz Bremer · Leverkusen, DE
• Michael Kressner · Leichlingen, DE
• Karlheinz Wolf · Leverkusen, DE
• Konrad Nonn
• Reinhold Hornle
• Georg Pape · Leverkusen, DE

Key dates

• Filing date: Mar 2, 1981
• Grant date: May 31, 1983
• Expiry date: Mar 2, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2467/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Dyestuff preparations which are capable of flow and contain (a) at least one dyestuff which is sparingly soluble or insoluble in water, (b) at least one polyester of phthalic acid and a polyalcohol and optionally a monohydric alcohol with 1-18 C atoms and (c) optionally further auxiliaries, and their use for dyeing plastics, in particular polyurethane plastics.