Leuco colorants as bluing agents in laundry care compositions

US10870819B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Gregory Scot Miracle · Monroe, US
• Brian Joseph Loughnane · Sharonville, US
• Samantha Jo Cost · Cincinnati, US
• Wesley A. Freund · Simpsonville, US
• Haihu Qin · Greer, US
• Sanjeev K. Dey · Spartanburg, US

Key dates

• Filing date: Oct 11, 2018
• Grant date: Dec 22, 2020
• Expiry date: Oct 19, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D2111/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A laundry care composition including at least one laundry care ingredient, a leuco composition, from 0.05 wt % to 15 wt % of a primary amine compound and from 0.005 wt % to 5 wt % of an antioxidant.