Fragrance compositions and air care devices

• US 10,669,509 B2
• Filed: 01/25/2016
• Issued: 06/02/2020
• Est. Priority Date: 01/30/2015
• Status: Active Grant

• Current Assignee: Rhodia Brasil Ltda.
• Original Assignee: Rhodia Operations (Solvac SA)
• Inventors: Nascimento, Ronaldo, Felix, Darlene, Zhang, Tingting
• Primary Examiner(s): Whiteley, Jessica
• Application Number:
  US15/545,167
• Publication Number:
  US 20180320106A1
• Time in Patent Office: 1,590 Days
• Field of Search: 512 25, 512 1
• CPC Class Codes: A61L 9/03 Apparatus therefor
• CPC Class Codes: A61L 9/044 with the help of an organic compound other than a macromolecular compound
• CPC Class Codes: A61L 9/127 comprising a wick
• CPC Class Codes: A61Q 13/00 Formulations or additives for perfume preparations essential oils or perfumes per se C11B9/00
• CPC Class Codes: C11B 9/0076 the hetero rings containing less than six atoms

Abstract

The present invention aims a new fragrance composition comprising a fragrance compound and a solvent or carrier, wherein at least 10% by weight based on the total weight of solvent and carrier of the fragrance composition is one or more specific low vapor pressure volatile organic compound (VOC). The new fragrance composition is particularly well adapted to air care devices like wicking or electrical systems (plug-in, reed diffusers . . . ).

Claims

1. A fragrance composition, comprising a fragrance compound and a carrier, wherein the carrier comprises, in an amount of at least 10% by weight based on the total weight of the carrier, at least one compound according to formula I:

2. A fragrance composition as claimed in claim 1, wherein R₁ and R₂ are each, independently from one another, selected from the group consisting of methyl, ethyl, isopropyl, n-propyl, isobutyl, n-butyl, tert-butyl, n-pentyl, cyclopentyl, cyclohexyl, and phenyl.

3. A fragrance composition as claimed in claim 1, wherein R₃ is H or C(═

O)R₄, and R₄ is methyl, ethyl, isopropyl, n-propyl, isobutyl, n-butyl, or tert-butyl.

4. A fragrance composition as claimed in claim 1, wherein R₁ and R₂ are each methyl and R₃ is H.

5. A fragrance composition as claimed in claim 1, wherein R₁ is methyl, R₂ is isobutyl, and R₃ is H.

6. A fragrance composition as claimed in claim 1, wherein R₁ is methyl, R₂ is phenyl, and R₃ is H.

7. A fragrance composition as claimed in claim 1, wherein R₁ and R₂ are methyl, R₃ is —

C(═

O)R₄, and R₄ is methyl.

8. A fragrance composition as claimed in claim 1, a blend of two or more compounds of formula I.

9. A fragrance composition as claimed in claim 8, wherein the blend comprises the following compounds I.1 and I.2:

10. A fragrance composition as claimed in claim 1, wherein the carrier comprises the at least one compound of formula I in an amount of at least 20% by weight, based on the total weight of the carrier.

11. A fragrance composition as claimed in claim 1, wherein the carrier comprises the compound of formula I in an amount of 100% by weight based on the total weight of the carrier.

12. A fragrance composition as claimed in claim 1, wherein the amount of the fragrance compound is from 10 to 80% by weight, based on the total weight of the fragrance composition.

15. An air care device comprising the fragrance composition of claim 1, wherein the air care device is a wicking device, an electrical device, or an aerosol device.

19. A fragrance composition as claimed in claim 10, wherein the at least one compound of formula I represents at least 40% by weight, based on the total weight of carrier.

20. A fragrance composition as claimed in claim 10, wherein the at least one compound of formula I represents at least 60% by weight, based on the total weight of carrier.

21. A fragrance composition as claimed in claim 12, wherein the composition comprises from 20 to 60% by weight, based on the total weight of the fragrance composition, of the fragrance compound.

22. The composition of claim 1, wherein the fragrance composition comprises no greater than 40% by weight, based on the total weight of the composition, of water.

23. The composition of claim 1, wherein the fragrance composition comprises no greater than 20% by weight, based on the total weight of the composition, of water.

13. A method for controlling evaporation of a fragrance composition that comprises a fragrance compound and one or more carriers, comprising as at least one of the one or more carriers at least one compound according to formula I:

16. The air care device of claim 13, wherein the air care device is an electrical liquid air freshener.

17. The air care device of claim 13, wherein the air care device is a plug-in.

18. The air care device of claim 13, wherein the air care device is a reed diffuser.

14. A method for controlling evaporation of a fragrance composition that comprises a fragrance compound and one or more carriers from an air care device selected from the group consisting of a wicking device, an electrical device, and an aerosol device, comprising including as at least one of the one or more carriers at least one compound according to formula I: