Photolabile pro-fragrances

US9730875B2 · kind B2 · utility

Assignee

• Henkel AG & Co. KGaA · DE

Inventors

• Thomas Gerke · Goldkronach, DE
• Christian Kropf · Hilden, DE
• Ursula Huchel · Cologne, DE
• Axel Griesbeck · Cologne, DE
• Agnieszka Landes · Bergheim, DE

Key dates

• Filing date: Feb 1, 2016
• Grant date: Aug 15, 2017
• Expiry date: Feb 1, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/507
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Fragrances that provide a scent of freshness tend to be volatile and are therefore not very economical when used in typical applications such as washing or cleaning processes, so they have to be used in relatively large quantities to be able to produce adequate effects. The disclosed photolabile pro-fragrances provide a much longer-lasting sense of fragrance, in particular with a scent of freshness, when used in typical applications, thus allowing said fragrances to be used economically.