Patent · US Active

Photolabile pro-fragrances

US8604250B2 · kind B2 · utility

6Cited by

1References

10Claims

0Family size

Assignee

Henkel AG & Co. KGaA · DE

Inventors

Thomas Gerke · Goldkronach, DE
Christian Kropf · Hilden, DE
Ursula Huchel · Cologne, DE
Axel Griesbeck · Cologne, DE
Olga Hinze · Cologne, DE

Key dates

Filing date	Aug 14, 2012
Grant date	Dec 10, 2013
Priority date	—
Expiry date	Aug 14, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/16
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Scents having a fresh odor are usually very volatile, and therefore have a low yield in typical applications such as washing or cleaning processes. They must therefore be used in relatively large quantities so that commensurate effects can be achieved. The invention describes specific ketones as photolabile scent storage substances which enable greatly improved persistence of the scent impression, in particular with a fresh odor, in typical applications. Corresponding washing or cleaning agents and air freshening agents, and a method for scenting surfaces, are also described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.