Fragrance compositions comprising ionic liquids

Patent metadata

Field	Value
Publication number	US-9840680-B2
Application number	US-201514865152-A
Country	US
Kind code	B2
Filing date	Sep 25, 2015
Priority date	Sep 25, 2014
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

The present invention relates to a fragrance composition comprising ionic liquids for enhanced evaporation of the perfume raw materials. The invention also relates to methods of use of the fragrance compositions for perfuming suitable substrates, particularly skin and hair.

First claim

What is claimed is:

1. A fragrance composition comprising:
(a) from 0.001% to 99.9% by weight of the total fragrance composition of dimethyl benzyl carbonyl butyrate as a perfume raw material and
(b) from 0.01% to 99% by weight of the total fragrance composition of at least two ionic liquids selected from:
i. at least one of (N-ethyl-2-(2-methoxyethoxy)-N,N-dimethylethanaminium) 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2.2-dioxide; 2-(2-ethoxyethoxy)-N-ethyl-N,N-dimethylethanamimum 6-methyl-3,4-dihydro-1,2,3-oxathiazin-4-one 2,2-dioxide; and mixtures thereof, and
ii) (N-ethyl-2-(2-methoxyethoxy)N,N-dimethylethanaminium)1.4-bis(2-ethylhexoxy)-1.4-dioxobutane-2-sulfonate,
wherein the combination of ionic liquids is a liquid at temperatures lower than 100° C.

2. The fragrance composition according to claim 1 further comprising:
(c) from about 10 wt % to about 80 wt % by weight of the total fragrance composition of a volatile solvent; and
(d) from about 0.1 wt % to about 50 wt % by weight of the total fragrance composition of a low volatility co-solvent or a mixture of low volatility co-solvents.

3. A product comprising a fragrance composition according to claim 1 , wherein the product is selected from the group consisting of a perfume, an eau de toilette, an eau de parfum, a cologne, and an after shave.

Assignees

• Procter & Gamble

Inventors

• Holland Lynette Anne Makins
• Todini Oreste
• Eike David Michael
• Velazquez Mendoza Jose Maria
• Tozer Sarah Anne
• Mcnamee Pauline Mary
• Stonehouse Jonathan Richard
• Staite William Eoghan
• Fovargue Henry Charles Reginald
• Gregory Judith Ann
• Seddon Kenneth Richard
• Gunaratne Harambage Quintus Nimal
• Puga Alberto Vaca
• Estager Julien
• Wu feng-ling
• Devine Shane Declan
• Blesic Marijana
• Ferrero Vallana Federico Maria

Classifications

• A61K8/41

  Amines · CPC title

• A61K8/49

  containing heterocyclic compounds · CPC title

• A61Q13/00

  Formulations or additives for perfume preparations (essential oils or perfumes per se C11B9/00) · CPC title

• A61K8/466

  containing sulfonic acid derivatives; Salts · CPC title

• A61K8/416

  Quaternary ammonium compounds (A61K8/35 takes precedence) · CPC title