Fragrance composition

Patent metadata

Field	Value
Publication number	US-12534685-B2
Application number	US-202117921503-A
Country	US
Kind code	B2
Filing date	May 11, 2021
Priority date	May 11, 2020
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

Suggested is fragrance composition comprising or consisting of a selection of specific nitriles showing improved stability against decomposition and discoloration.

First claim

What claimed is:

1 . A fragrance composition comprising at least one nitrile of formula (I),
R—CN  (I),
in which R represents
(i) a substituted phenyl radical;
(ii) an optionally substituted norbornyl radical;
(iii) an optionally substituted cyclopent(en)yl radical; and/or
(iv) a —(CH 2 ) n —CH═CH 2 radical, wherein n represents an integer of from 1 to 20; and
the nitriles forming group (i) are selected from the group consisting of
2,3-dimethylbenzonitrile,
2,4,5-trimethylbenzonitrile,
4-ethylbenzonitrile,
4-propylbenzonitrile,
4-phenylbenzonitrile,

and mixtures thereof.

2 . The composition of claim 1 , wherein the nitrile of formula (I) is 3,3-dimethylnorbornane-2-carbonitrile.

3 . The composition of claim 1 , wherein the nitrile of formula (I) is 2-[3-(methoxymethyl)-2-2-dimethyl-cyclopent-3-en-1-yl]acetonitrile.

4 . The composition of claim 1 , wherein the nitrile of formula (I) is tridec-12-enenitrile.

5 . The composition of claim 1 , further comprising at least one secondary fragrance different from the fragrance of formula (I).

6 . The composition of claim 5 , wherein said at least one further secondary fragrance is selected from the group consisting of fragrances with woods, amber, fruity, musk odors, and mixtures thereof.

7 . The composition of claim 6 , which is a perfume oil comprising the nitrile of formula (I) in an amount of from about 0.01 to about 0.1 wt.-percent.

8 . The composition of claim 1 , further comprising a solvent.

9 . The composition of claim 8 , wherein said solvent is selected from the group consisting of benzyl alcohol, benzyl benzoate, diethyl phthalate, dipropylene glycol, ethyl alcohol, iso-propyl myristate, triethylcitrate, downol DPM, IsoPar L, triacetine, and mixtures thereof.

10 . A fragrance formulation comprising
(a) at least one fragrance of claim 1 , and (b) ethyl alcohol and/or triethyl citrate.

11 . A cosmetic or personal care composition comprising the fragrance composition of claim 1 .

12 . A detergent composition comprising the fragrance composition of claim 1 .

13 . A capsule comprising the fragrance composition of claim 1 .

14 . A method for obtaining a cosmetic, personal care or detergent composition with improved stability against discoloration, comprising the following steps:
(i) providing a cosmetic, personal care or detergent composition; and (ii) adding the fragrance composition of claim 1 .

15 . A cosmetic or personal care composition comprising the fragrance formulation of claim 10 .

16 . A detergent composition comprising the fragrance formulation of claim 10 .

17 . A capsule comprising the fragrance formulation of claim 10 .

18 . A method for obtaining a cosmetic, personal care or detergent composition with improved stability against discoloration, comprising the following steps:
(i) providing a cosmetic, personal care or detergent composition; and (ii) adding the fragrance formulation of claim 10 .

Assignees

• Symrise Ag

Inventors

• Chandrasekaran Vijayanand

Classifications

• C11D3/502

  Protected perfumes · CPC title

• C11D3/26

  containing nitrogen {(C11D3/162, C11D3/164, C11D3/166, C11D3/168 take precedence)} · CPC title

• C11B9/0046

  containing only two condensed rings · CPC title

• C11B9/003

  the ring containing less than six carbon atoms · CPC title

• C11B9/0023

  containing nitrogen as the only heteroatom · CPC title