Photoactivators

US9834740B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Alan David Willey · Columbus, US
• Jacob Robert Adams · Cincinnati, US
• Kady Lynn Willison · Cincinnati, US
• Kenneth Edward Yelm · Hamilton, US
• Gregory Mark Bunke · Lawrenceburg, US
• Robb Richard Gardner · Cincinnati, US

Key dates

• Filing date: Jan 12, 2015
• Grant date: Dec 5, 2017
• Expiry date: Jan 12, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/48
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Photoactivators comprise a photoactive moiety and a hydrophilic moiety. The photoactivators preferably comprise less than about 35%, by weight of the photoactivator, of the photoactive moiety. The photoactivators can be activated to a photo-excited state by excitation with incident radiation of a wavelength between about 350 nm and 750 nm, preferably between about 350 nm and about 420 nm. The photoactivators further encompass those having certain chemical formulations.