EP4623057A1

EP4623057A1 - Encapsulated fragrance compositions for providing, modulating or intensifying a scent

Info

Publication number: EP4623057A1
Application number: EP24748292.0A
Authority: EP
Inventors: Sabine GRIMME; Kathrin KOHLMEYER
Original assignee: Symrise AG
Current assignee: Symrise AG
Priority date: 2024-07-19
Filing date: 2024-07-19
Publication date: 2025-10-01
Also published as: WO2025119505A1

Abstract

The present invention relates to an encapsulated fragrance composition, to a method for producing the encapsulated fragrance composition, to an encapsulated fragrance composition obtained or obtainable by such a method, to a rim block comprising the encapsulated fragrance composition, to a method for producing such a rim block, to the use of the encapsulated fragrance composition or the rim block for providing, modulating or intensifying a scent and to a method for providing, modulating or intensifying a scent, in which the encapsulated fragrance composition or the rim block are applied.

Description

Eisenfuhr Speiser i

Munich, 19 July 2024

Our Ref.: SM 6990-01 WO SOE/DRE

Applicant: Symrise AG

Serial Number: New Application

Symrise AG, MiihlenfeldstraBe 1 , 37603 Holzminden, Germany

Encapsulated fragrance compositions for providing, modulating or intensifying a scent

The present invention relates to an encapsulated fragrance composition, to a method for producing the encapsulated fragrance composition, to an encapsulated fragrance composition obtained or obtainable by such a method, to a rim block comprising the encapsulated fragrance composition, to a method for producing such a rim block, to the use of the en- 5 capsulated fragrance composition or the rim block for providing, modulating or intensifying a scent and to a method for providing, modulating or intensifying a scent, in which the encapsulated fragrance composition or the rim block are applied.

Sanitary and air deodorant devices for a variety of environments are relevant tools used in private and public rooms. The main purpose of said devices is to scavenge malodours,0 provide freshness and/or to positively influence the mood of a subject as mediated by a fragrance component comprised within the device.

One example for a sanitary device is a rim block. Typical rim blocks usually have to fulfil disinfecting, cleaning and deodorizing purposes, and are composed of solid mass, gels or combinations of the same and a device for holding and fixing the active ingredient. 5 Thus, rim blocks contain perfume oils for providing freshness or desired odours. However, for reducing the costs of a rim block, rim blocks often include lower amounts of perfume oil or release only low amounts of perfume oil. As a result, the freshness or the desired odour provided by such rim blocks is often perceived as insufficient. There is thus a need for ways to provide, modulate or intensify the freshness or the desired odour provided by such rim blocks, such that even with reduced amounts of perfume oils a sufficient freshness and odour is achieved.

The primary object of the present invention was thus to find a possibility for providing a particularly strong scent (including a freshness impression) of e.g. a perfume oil.

The primary object of the present invention is solved by an encapsulated fragrance composition comprising or consisting of a) a fragrance composition, wherein the fragrance composition comprises a1) at least 7 wt.-%, preferably at least 7.5 wt.-%, further preferably at least 8 wt.- %, particularly preferably at least 8.5 wt.-%, even further preferably at least 9 wt.-%, more preferably at least 10 wt.-%, even more preferably at least 11 wt..- %, especially preferably at least 12.5 wt.-%, aldehydes selected from the group consisting of octanal, decanal, 2-Methylundecanal, gamma-undecalac- tone, and mixtures thereof, based on the total weight of the fragrance composition a), a2) 0.25 to 20 wt.-%, preferably 0.5 to 15 wt.-%, further preferably 0.75 to 10 wt.- %, particularly preferably 1 to 7.5 wt.-%, butyrates selected from the group consisting of ethyl butyrate, ethyl-2-methylbutyrate, isoamylbutyrate, and mixtures thereof, based on the total weight of the fragrance composition a), a3) 12 to 35 wt.-%, preferably 13 to 30 wt.-%, further preferably 14 to 27.5 wt.-%, particularly preferably 15 to 25 wt.-%, acetates selected from the group consisting of hexyl acetate, benzyl acetate, hexenyl acetate preferably cis-3-hex- enyl acetate, prenyl acetate, triacetin, and mixtures thereof, based on the total weight of the fragrance composition a), a4) at most 20 wt.-%, preferably at most 19 wt.-%, further preferably at most 18 wt.-%, particularly preferably at most 17 wt.-%, even further preferably at most 16.5 wt.-%, ester salts selected from the group consisting of diethyl malonate, allylcyclohexyl propionate, allyl heptylate, ethyl heptylate, 3,3,5-trimethylcy- clohexyl acetate, allyl capronate, and mixtures thereof, based on the total weight of the fragrance composition a), wherein the fragrance composition comprises at least one of said ester salts, a5) at most 15 wt.-%, preferably at most 12.5 wt.-%, further preferably at most 10 wt.-%, particularly preferably at most 9 wt.-%, even further preferably at most 8 wt.-%, more preferably at most 7 wt.-%, even more preferably at most 6.5 wt.-%, of menthon compounds selected from the group consisting of menthon, isomenthon and mixtures thereof based on the total weight of the fragrance composition a), wherein the fragrance composition comprises at least one of said menthon compounds, and a6) 0.5 to 45 wt.-%, preferably 0.75 to 42.5 wt.-%, further preferably 1 to 40 wt.- %, particularly preferably 1 .25 to 37.5 wt.-%, even further preferably alcohols selected from the group consisting of hexenol (preferably cis-3-hexenol), eucalyptol, borneol (preferably isoborneol), 1 ,2-propylene glycol, and mixtures thereof, based on the total weight of the fragrance composition a), and b) capsule material, wherein the capsule material comprises maltodextrin and/or Gum Arabic.

It was advantageously found that the encapsulated fragrance composition according to the invention can intensify a scent (including a freshness impression) of e.g. a perfume oil, as shown in the examples. This effect was not observed with other encapsulated fragrance compositions, which had different amounts of components a1) to a6).

Preferably, the term “octanal” is or comprises aldehyde C8. Preferably, the term “decanal” is or comprises “adehyde C10. Preferably, the term “2-Methylundecanal” is or comprises aldehyde C12 laurin. Preferably, the term “gamma-undecalactone” is or comprises aldehyde C14.

Preferably, the encapsulated fragrance composition according to the invention refers to a fragrance composition a), which is encapsulated by or at least by capsule material b). Preferably, the encapsulated fragrance composition is present as or comprises particles, which comprise fragrance composition a) and capsule material b), preferably wherein the particles have an average particle size (diameter) in a range of from 0.1 to 2 mm, preferably in a range of from 0.25 to 1 .75 mm, further preferably in a range of from 0.5 to 1 .5 mm, particularly preferably in a range of from 0.75 to 1.25 mm, more preferably in a range of from 0.85 to 0.95 mm. Preferably, the average particle size is based on the number of particles.

Preferably, capsule material b) is or comprises a maltodextrin matrix comprising maltodextrin and polysaccharides (such as for example Gum Arabic). Preferably, capsule material b) is or comprises a maltodextrin matrix obtained by a melt of maltodextrin, polysaccharides (such as for example Gum Arabic) and fragrances by fluidized bed agglomeration, particularly preferably by a method as described in EP 1139791 B1 , further preferably by a method as described herein.

The term “based on the total weight of the fragrance composition” is used as indicating the basis for the wt.-% in components a1) to a6), wherein the fragrance composition a) without the capsule material b) is used as the base. Preferably, the term “fragrance composition a)”, as used in the indication for the basis for the wt.-% in components a1) to a6), refers to the combined fragrance composition of all particles comprising a fragrance composition. I.e. the fragrance composition of single particles may contain some or all of the components a1) to a6) in different amounts than described herein, provided that the total fragrance composition over all particles of the encapsulated fragrance composition complies with the components and amounts of fragrance composition a) as described herein.

It is preferred that the encapsulated fragrance composition according to the invention comprises 10 to 40 wt.-%, preferably 15 to 30 wt.-%, further preferably 20 to 25 wt.-% of the fragrance composition a), based on the total weight of the encapsulated fragrance composition.

It is further preferred forthe encapsulated fragrance composition according to the invention that the encapsulated fragrance composition, preferably fragrance composition a), further comprises (E)-3,7-Dimethylocta-2,6-dienal and (Z)-3,7-Dimethylocta-2,6-dienal, preferably wherein the summed amount of (E)-3,7-Dimethylocta-2,6-dienal and (Z)- 3,7-Dimethylocta-2,6-dienal in the fragrance composition a) is at least 15 wt.-%, preferably at least 20 wt.-%, further preferably at least 25 wt.-%, particularly preferably at least 27.5 wt.-%, based on the total weight of the fragrance composition a).

Preferably in the encapsulated fragrance composition according to the invention, fragrance composition a) comprises 7 to 20 wt.-%, preferably 7.5 to 19 wt.-%, further preferably 8 to 18 wt.-%, particularly preferably 8.5 to 17 wt.-%, even further preferably 9 to 16 wt.-%, more preferably 10 to 15 wt.-%, even more preferably 11 to 14 wt..-%, especially preferably 12.5 to 13.5 wt.-% of the aldehydes a1).

Preferably in the encapsulated fragrance composition according to the invention, fragrance composition a) comprises 5 to 20 wt.-%, preferably 6 to 19 wt.-%, further preferably 7 to 18 wt.-%, particularly preferably 8 to 17 wt.-%, even further preferably 8.5 to 16.5 wt.-% of the ester salts a4).

Preferably in the encapsulated fragrance composition according to the invention, fragrance composition a) comprises 0.25 to 15 wt.-%, preferably 0.5 to 12.5 wt.-%, further preferably 0.75 to 10 wt.-%, particularly preferably 1 to 9 wt.-%, even further preferably 1 .25 to 8 wt.- %, more preferably 1.5 to 7 wt.-%, even more preferably 2 to 6.5 wt.-%, of the menthon compounds a5).

Particularly preferably, the encapsulated fragrance composition comprises a1) 7.5 to 20 wt.-%, preferably 10 to 17.5 wt.-%, further preferably 12 to 15 wt.-% of the aldehydes a1), a2) 5 to 15 wt.-%, preferably 6 to 10 wt.-%, further preferably 7 to 8 wt.-% of the butyrates a2), a3) 12 to 20 wt.-%, preferably 13 to 17 wt.-%, further preferably 14 to 16 wt-% of the acetates a3), a4) 5 to 12.5 wt.-%, preferably 7.5 to 10 wt.-%, further preferably 8 to 9.5 wt.-% of the ester salts a4), a5) 4 to 10 wt.-%, preferably 5 to 7.5 wt.-%, further preferably 6 to 7 wt.-% of the menthon compounds a5), and a6) 0.75 to 5 wt.-%, preferably 1 to 3 wt.-%, further preferably 1.5 to 2.5 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a).

Particularly preferably, the encapsulated fragrance composition comprises a1) 5 to 12 wt.-%, preferably 7 to 11 wt.-%, further preferably 8 to 10 wt.-% of the aldehydes a1), a2) 0.25 to 4.5 wt.-%, preferably 0.5 to 2.5 wt.-%, further preferably 0.75 to 1 .5 wt.-% of the butyrates a2), a3) 18 to 30 wt.-%, preferably 22.5 to 25 wt.-% of the acetates a3), a4) 12.5 to 20 wt.-%, preferably 15 to 17.5 wt.-% of the ester salts a4), a5) 0.5 to 3.5 wt.-%, preferably 1 to 3 wt.-%, further preferably 1.5 to 2.5 wt.-% of the menthon compounds a5), and a6) 20 to 40 wt.-%, preferably 27.5 to 37.5 wt.-%, further preferably 30 to 35 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a).

The present invention further relates to a method for producing the encapsulated fragrance composition according to the invention, comprising a) providing fragrance composition a), as described herein, capsule material b), as described herein, and water b) mixing fragrance composition a), capsule material b), and water to obtain a mixture, preferably an emulsion, c) spraying the mixture obtained in step b) into a fluidised bed containing granulation nuclei produced therein, wherein the average residence time of the sprayed-in mixture in the fluidised bed is at most 20 minutes, preferably less than 20 minutes.

Fragrances can be sufficiently granulated in a short time span as described herein, and thus, a product is obtained that is considerably improved with respect to the distribution of particle sizes, the geometry, the retention and loading. A high loading describes a high total amount of encapsulated flavouring based on the granule mass. The higher the retention of the individual volatile components, the lower are the losses of these components.

The terms “at most 20 minutes” or “less than 20 minutes” do not include 0 minutes.

The method according to the invention may be carried out as described in EP 1139791 A1 .

What was said with regard to the encapsulated fragrance composition according to the invention applies accordingly to the method according to the invention.

The method according to the invention can be carried out batchwise and continuously. Preferably, the method according to the invention is carried out continuously. A continuous process is more suitable for industrial production and has short residence times. At the same material throughput, the bed contents in the continuous processes of fluidized-bed spray agglomeration are lower than in the batchwise process. Instead of the total amount of all granule nuclei being made to grow simultaneously, in the continuous fluidized bed spray agglomeration, only a small amount of the granule nuclei are sprayed and after reaching the desired granule size they are immediately discharged via a sifter. The inventively produced encapsulated flavouring and/or perfume preparations have a small particle size distribution; in addition, the grains of the appropriate size can be specifically taken off. In the context of the present invention, it is preferred, therefore, that the fluidized bed has a small bed height. Preferably this is 3 to 50 cm, in particular preferably 5 to 20 cm.

The sprayed solution may be sprayed into the fluidized bed from the bottom, from the side, but also from the top. Preferably sifters are used for discharging the granules. Using sifters means that only the coarse particles can leave the fluidized bed. The remaining particles remain behind in the fluidized bed until they also have achieved the desired particle size.

The present invention further relates to an encapsulated fragrance composition according to the invention obtained or obtainable by a method according to the invention, as described herein.

What was said with regard to the encapsulated fragrance composition according to the invention applies accordingly.

The present invention further relates to a rim block comprising the encapsulated fragrance composition according to the invention and one or more perfume oil(s).

Preferably, the, one, two, three or more or all perfume oil(s) in the rim block according to the invention is/are selected from the group consisting of extracts of blossoms (lily, lavender, rose, jasmine, neroli, ylang-ylang), stems and leaves (geranium, patchouli, petitgrain), fruits (anise, coriander, caraway, juniper), fruit peel (bergamot, lemon, orange), roots (nutmeg, angelica, celery, cardamom, costus, iris, calmus), woods (pinewood, sandalwood, guaiac wood, cedarwood, rosewood), herbs and grasses (tarragon, lemon grass, sage, thyme), needles and branches (spruce, fir, pine, dwarf pine), resins and balsams (galbanum, elemi, benzoin, myrrh, olibanum, opoponax).

Additionally or alternatively, it is preferred that the, one, two, three or more or all perfume oil(s) in the rim block according to the invention is/are essential oils, preferably selected from the group consisting of Ambrette Seed Absolue (preferably defined with the I a CAS number of 8015-62-1 ; 84455-19-6); Amyris Oil (preferably defined with the I a CAS number of 8015-65-4; 90320-49-3); Angelica Root Oil (preferably defined with the I a CAS number of 8015-64-3; 84775-41-7); Apricot Seed Oil (preferably defined with the I a CAS number of 68650-44-2; 72869-69-3); Artemisia Oil (preferably defined with the / a CAS number of 8022-37-5; 84775-75-7; 68991-20-8); Basil Oil (preferably defined with the / a CAS number of 8015-73-4; 84775-71-3); Bay Oil (preferably defined with the I a CAS number of 8006- 78-8; 85085-61-6); Beeswax Abs (preferably defined with the / a CAS number of 8012-89- 3); Benzoin Resinoid (preferably defined with the I a CAS number of 9000-05-9; 9000-72- 0); Bergamot Oil (preferably defined with the I a CAS number of 8007-75-8; 89957-91-5; 68648-33-9); Boya (preferably defined with the I a CAS number of 958663-49-5); Cabreuva Oil (preferably defined with the I a CAS number of 68188-03-4; 91722-93-9); Cade Oil (preferably defined with the I a CAS number of 8013-10-3; 90046-02-9); Cananga Oil Java (preferably defined with the I a CAS number of 68606-83-7; 93686-30-7); Caraway Oil (preferably defined with the I a CAS number of 8000-42-8; 85940-31-4); Cardamom Abs./Oil (preferably defined with the I a CAS number of 8000-66-6; 85940-32-5); Carrot Seed Oil (preferably defined with the I a CAS number of 8015-88-1 ; 84929-61-3); Cassia Oil (preferably defined with the I a CAS number of 8007-80-5; 84961-46-6); Cassie Abs. A Egypt (preferably defined with the I a CAS number of 8023-82-3; 89958-31-6); Cassis Abs. Burgundy (preferably defined with the / a CAS number of 68606-81-5; 97676-19-2); Castro- reum Abs. (preferably defined with the I a CAS number of 8023-83-4; 92704-04-6); Cedar Leaf Oil (preferably defined with the I a CAS number of 8007-20-3; 90131-58-1); Cedarwood Oil (preferably defined with the I a CAS number of 68990-83-0; 91722-61-1); Cedarwood Oil (preferably defined with the I a CAS number of 8000-27-9; 85085-29-6; 85085- 41-2); Cedarwood Oil Atlas (preferably defined with the I a CAS number of 8023-85-6; 92201-55-3); Celery Seed Oil (preferably defined with the I a CAS number of 8015-90-5; 89997-35-3); Chamomile Oil Blue (preferably defined with the I a CAS number of 8002-66- 2; 84082-60-0); Chamomile Oil Roman (preferably defined with the I a CAS number of 8015-92-7; 84649-86-5); Cinnamon Bark Oil (preferably defined with the I a CAS number of 8015-91-6; 84649-98-9); Cinnamon Leaf Oil (preferably defined with the I a CAS number of 8015-91-6; 84649-98-9); Cistus Labdanum Abs. SIS (preferably defined with the I a CAS number of 8016-26-0; 89997-74-0); Cistus Oil (preferably defined with the I a CAS number of 8016-26-0; 89997-74-0); Citronella Oil Formosa/Java (preferably defined with the I a CAS number of 8000-29-1 ; 91771-61-8); Clary Sage Oil (preferably defined with the I a CAS number of 8016-63-5; 84775-83-7); Clove Bud Oil (preferably defined with the I a CAS number of 8000-34-8; 84961-50-2; 97-53-0); Clove Leaf Oil (preferably defined with the I a CAS number of 8000-34-8; 84961-50-2; 97-53-0); Coconut Oil (preferably defined with the I a CAS number of 8001-31-8); Copaiba Balsam Oil (preferably defined with the I a CAS number of 8001-61-4); Coriander Oil (preferably defined with the I a CAS number of 8008- 52-4; 84775-50-8); Cumin Oil (preferably defined with the I a CAS number of 8014-13-9; 84775-51-9); Cypress Oil (preferably defined with the / a CAS number of 8013-86-3; 84696- 07-1); Cypriol Oil (preferably defined with the I a CAS number of 68916-60-9; 91771-62-9); Davana Oil (preferably defined with the / a CAS number of 8016-03-3; 91844-86-9); Dill Weed Oil (preferably defined with the / a CAS number of 8006-75-5; 90028-03-8); Dyna- mone (preferably defined with the I a CAS number of 8016-26-0; 89997-74-0); Elemi Oil I Gum (preferably defined with the I a CAS number of 8023-89-0; 9000-75-3); Estragon Oil (preferably defined with the I a CAS number of 8016-88-4; 90131-45-6); Eucalyptus Oil Citriodora (preferably defined with the I a CAS number of 8000-48-4; 85203-56-1); Fennel Oil Sweet (preferably defined with the I a CAS number of 8006-84-6; 84455-29-8); Fir Balsam Abs. (preferably defined with the I a CAS number of 8007-47-4); Fucus Abs. (preferably defined with the I a CAS number of 68917-51-1 ; 84696-13-9); Galbanum Oil (preferably defined with the I a CAS number of 8023-91-4; 93165-40-3); Geranium Oil (preferably defined with the I a CAS number of 8000-46-2; 90082-51-2); Ginger Extract I Oil (preferably defined with the I a CAS number of 8007-08-7; 84696-15-1); Grapefriut Oil White (preferably defined with the I a CAS number of 8016-20-4; 90045-43-5); Guaiac Wood Oil (preferably defined with the I a CAS number of 8016-23-7; 89958-10-1); Gurjun Balsam Oil (preferably defined with the I a CAS number of 8030-55-5); Hay Abs (preferably defined with the I a CAS number of 8031-00-3; 92128-62-6); Hydrocarboresin B (preferably defined with the I a CAS number of 8016-26-0; 89997-74-0); Immortelle Abs. (preferably defined with the I a CAS number of 8023-95-8; 90045-56-0); Jasmin Abs. (preferably defined with the I a CAS number of 8022-96-6; 90045-94-6); Jasmin Abs. Sambac (preferably defined with the I a CAS number of 1034798-23-6; 91770-14-8); Juniper Berry Oil R.S (preferably defined with the I a CAS number of 8002-68-4; 84603-69-0); Labdanum Abs. I Resinoide (preferably defined with the I a CAS number of 8016-26-0; 89997-74-0); Laurel Noble Leaf Oil FLS (preferably defined with the I a CAS number of 8002-41-3; 84603-73-6); Lavandin Oil (preferably defined with the I a CAS number of 8022-15-9; 91722-69-9); Lavender Oil White (preferably defined with the I a CAS number of 8000-28-0; 90063-37-9); Lemon Oil (preferably defined with the I a CAS number of 8008-56-8; 84929-31-7); Lemon Oil Terpenes (preferably defined with the I a CAS number of 68917-33-9; 84929-31-7); Lemon Oil Winter (preferably defined with the I a CAS number of 8008-56-8; 84929-31-7); Lemongrass Oil (preferably defined with the I a CAS number of 8007-02-1 ; 91844-92-7); Lentisque Abs. (preferably defined with the I a CAS number of 61789-92-2; 68991-39-9; 90082-82-9); Lime Oil (preferably defined with the I a CAS number of 8008-26-2; 90063- 52-8); Lime Oil Terpenes (preferably defined with the I a CAS number of 68917-71-5; 90063-52-8); Litsea Cubeba Oil (preferably defined with the I a CAS number of 68855-99- 2; 90063-59-5); Longoza Oil (preferably defined with the I a CAS number of 97952-46-0); Lovage Root Oil (preferably defined with the I a CAS number of 8016-31-7; 84837-06-9); Mace Oil Dist. Low Safrol (preferably defined with the I a CAS number of 8008-45-5; 84082- 68-8); Mace Oil (preferably defined with the I a CAS number of 8007-12-3; 84082-68-8); Magnolia Flower Oil (preferably defined with the I a CAS number of 8006-76-6; 92457-18- 6); Magnolia Leaf Oil (preferably defined with the / a CAS number of 8006-76-6; 92457-18- 6); Mandarin Oil (preferably defined with the / a CAS number of 8008-31-9; 84929-38-4); Marjoram Oil (preferably defined with the / a CAS number of 8015-01-8; 84082-58-6); Mentha Arv. Oil (preferably defined with the I a CAS number of 68917-18-0; 90063-97-1); Mimosa Abs. (preferably defined with the I a CAS number of 8031-03-6; 93685-96-2; 98903-

76-5); Mousse C Abs. (preferably defined with the I a CAS number of 9000-50-4; 90028- 68-5); Myrrh Oil (preferably defined with the I a CAS number of 8016-37-3; 84929-26-0); Myrtle Oil (preferably defined with the I a CAS number of 8008-46-6; 84082-67-7); Narcisse Abs. (preferably defined with the I a CAS number of 68917-12-4; 90064-26-9); Neroli Oil (preferably defined with the I a CAS number of 72968-50-4; 8016-38-4); Nutmeg Oil (preferably defined with the I a CAS number of 8008-45-5; 84082-68-8); Olibanum Oil (preferably defined with the I a CAS number of 8016-36-2; 8050-07-5); Opoponax Oil I Resinoid (preferably defined with the I a CAS number of 100084-96-6; 8021-36-1); Orange Flower Abs. (preferably defined with the I a CAS number of 68916-04-1 ; 72968-50-4); Orange Oil (preferably defined with the I a CAS number of 8008-57-9; 8028-48-6; 68916-04-1 ; 72968-

50-4); Origanum Oil (preferably defined with the I a CAS number of 336185-21-8; 84012- 24-8); Osmanthus Abs. (preferably defined with the I a CAS number of 68917-05-5; 92347- 21-2); Palmarosa Oil (preferably defined with the I a CAS number of 8014-19-5; 84649-81- 0); Parsley Leaf Oil (preferably defined with the I a CAS number of 8000-68-8; 84012-33- 9); Parsley Seed Oil (preferably defined with the I a CAS number of 8000-68-8; 84012-33- 9); Patchouli Oil (preferably defined with the I a CAS number of 8014-09-3; 84238-39-1); Pepper Black Oil (preferably defined with the I a CAS number of 8006-82-4; 84929-41-9); Pepper Oil / Abs. Sichuan Type (preferably defined with the I a CAS number of 102242- 62-6; 97404-53-0); Peppermint Oil (preferably defined with the I a CAS number of 8006- 90-4; 84082-70-2); Peru Balsam Oil (preferably defined with the I a CAS number of 8007- 00-9); Petitgrain Bigaeade Abs. (preferably defined with the I a CAS number of 72968-50- 4; 8014-17-3); Petitgrain Oil Citronnier (preferably defined with the / a CAS number of 8048-

51-9; 84929-31-7); Pimento Leaf Oil (preferably defined with the I a CAS number of 8006-

77-7; 84929-57-7); Pine Needle Abs. (preferably defined with the I a CAS number of 8023- 99-2; 84012-35-1); Pine Needle Oil (preferably defined with the I a CAS number of 8021- 29-2; 91697-89-1 ; 8021-28-1 ; 85085-34-3); Pink Pepper Leaf Oil (preferably defined with the I a CAS number of 1175539-64-6; 949495-68-5); Red Berry Extract (preferably defined with the I a CAS number of 949495-68-5); Red Berry Oil (preferably defined with the I a CAS number of 68917-52-2; 94334-31-3); Rose Abs. (preferably defined with the I a CAS number of 8007-01-0; 90106-38-0; 97660-07-6; 84604-12-6); Rosemary Oil (preferably defined with the I a CAS number of 8000-25-7; 84604-14-8); Rum CO2 Extract (preferably defined with the I a CAS number of 91770-72-8; 943609-24-3); Sage Officinale Oil Dalm (preferably defined with the I a CAS number of 8022-56-8; 84082-79-1); Sandalwood Oil (preferably defined with the / a CAS number of 8024-35-9; 92875-02-0; 1070895-66-7; 91845-48-6; 8006-87-9; 84787-70-2); Spearmint Oil (preferably defined with the / a CAS number of 8008-79-5; 84696-51-5); Spike Oil (preferably defined with the I a CAS number of 8016-78-2; 84837-04-7); Star Anise Oil (preferably defined with the I a CAS number of 68952-43-2; 84650-59-9); Styrax Oil (preferably defined with the I a CAS number of 8046-

19-3; 94891-28-8); Sweet Almond Oil (preferably defined with the I a CAS number of 8007- 69-0; 90320-37-9); Tagetes Oil (preferably defined with the I a CAS number of 8016-84-0; 91770-75-1); Tangerine Cravo Oil Brazil (preferably defined with the I a CAS number of 8016-85-1 ; 93686-22-7); Tea Tree Oil (preferably defined with the I a CAS number of 68647-73-4; 85085-48-9); Thuja Oil (preferably defined with the I a CAS number of 8007-

20-3; 91770-83-1); Thyme Oil (preferably defined with the I a CAS number of 8007-46-3; 85085-75-2); Timut Pepper Oil (preferably defined with the I a CAS number of 102242-62- 6; 91770-90-0); Tonka Bean Abs. (preferably defined with the I a CAS number of 8024-04- 2; 90028-06-1); Tuberose Abs. (preferably defined with the I a CAS number of 8024-05-3; 94334-35-7); Tumeric Oil (preferably defined with the I a CAS number of 8024-37-1 ; 84775-52-0); Turpentine Oil (preferably defined with the I a CAS number of 8006-64-2); Vanilla Abs (preferably defined with the / a CAS number of 8024-06-4; 84650-63-5); Vetiver Oil/Abs (preferably defined with the I a CAS number of 8016-96-4; 84238-29-9); Violet Leaves Abs. (preferably defined with the I a CAS number of 8024-08-6; 90147-36-7); Wheat Bran Abs. (preferably defined with the I a CAS number of 68916-76-7; 84012-44-2); Wormwood Oil (preferably defined with the I a CAS number of 8008-93-3; 84929-19-1); and Ylang Ylang Oil (preferably defined with the I a CAS number of 8006-81-3; 83863-30- 3).

Additionally or alternatively, the, one, two, three or more or all perfume oil(s) in the rim block according to the invention is/are selected from the group consisting of acetals, alcohols, aldehydes, amines, amides, nitriles, esters, ethers, ketones, lactones, terpenes, oils, and extracts.

Preferably, the, one, two, three or more or all acetal(s) in the perfume oil is/are selected from the group consisting of 6,6-dimethoxy-2,5,5-trimethylhex-2-ene (67674-46-8; Ama- rocit); ethoxymethoxycyclododecane (58567-11-6; Amberwood); (4aR,5R,7aS,9R)-Oc- tahydro-2,2,5,8,8,9ahexamethyl-4H-4a,9-methanoazuleno[5,6-d]- 1 ,3-dioxole (211299-54- 6; Ambrocenide); 4H-4a,9-Methanoazuleno[5,6-d]-1 ,3-dioxole, octahydro-2, 5,8,8, 9a-pen- tamethyl-2-propyl-, (3aS,4aR,5R,7aS,9R,9aR) (1357064-95-9; Ambrostar); 2,4,6-trime- thyl-4-phenyl-1 ,3-dioxane (5182-36-5; Floropal); 4,4a,5,9b-tetrahydro-2,4-dimethyl-in- deno[1 ,2-d]-1 ,3-dioxin (27606-09-3; Magnolan); hexahydro-T,T,5',5'-tetramethyl-spiro[1 ,3- dioxolane-2,8'(5'H)-[2H-2,4a]methanonaphthalene] (154171-76-3; 154171-77-4; Ysam- ber), Citral diethyl acetal; and dimethyl acetal phenylacetaldehyde. Preferably, the, one, two, three or more or all alcohol(s) in the perfume oil is/are selected from the group consisting of 1-(2-tert-butylcyclohexyl)oxybutan-2-ol (139504-68-0; Amber core); 2,6-di-tert-butyl-p-cresol (128-37-0; BHT Ionol); (Z)-3-methyl-5-(2,2,3-trimethyl-1-cy- clopent-3-enyl)pent-4-en-2-ol (67801-20-1 ; Ebanol); 4-methyl-2-(2-methylpropyl)oxan-4-ol (63500-71-0; Florosa/ Pyranol); [(1 R,2S)-1-methyl-2-[[(1 R,3S,5S)-1 ,2,2-trimethyl-3-bicy- clo[3.1 .0]hexanyl]methyl]cyclopropyl]methanol (198404-98-7; Javanol); (3R)-1-[(1 R,6S)- 2,2,6-trimethylcyclohexyl]hexan-3-ol; (3S)-1 -[(1 R,6S)-2,2,6-trimethylcyclohexyl]hexan-3-ol (70788-30-6; Norlimbanol); 3-methyl-5-phenylpentan-1-ol (55066-48-3; Phenoxanol); (E)- 3,3-dimethyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-2-ol (107898-54-4; Polysan- tol); 5-(3-methylphenyl)pentan-1-ol (25634-93-9; Rosaphen); 3-methyl-5-(2,2,3-trimethyl- cyclopent-3-en-1-yl)pentan-2-ol (1471313-03-7; 65113-99-7; Sandalore); (2E)-2-ethyl-4- (2,2,3-trimethyl-3-cyclopenten-1-yl)-buten-1-ol + 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten- 1-yl)-2-buten-1-ol (106185-75-5; 28219-61-6; Sandranol); (E)-4-methyldec-3-en-5-ol (81782-77-6; Undecavertol); 3-[5,5,6-T rimethylbicyclo[2.2.1 ]hept-2-yl]cyclohexan-1 -ol (70955-71-4; Sandela), hexan-1-ol; octan-1-ol; decan-1-ol; dodecan-1-ol; Borneol; Isoborneol; Carvacrol; Citronellol; L-Citronellol; Dihydro Eugenol; Dihydro Myrcenol; Dimethyl Benzyl Carbinol; Ethyl Linalool; Eucalyptol; Eugenol; Geraniol; Cis-3-Hexenol; Isobornyl Cyclohexanol; Linalool; Menthol; Nerolidol; Nerol, Phenylethyl alcohol; Phenylethyl Dimethyl Carbinol; Phenylpropyl Alcohol; Propenyl Guaethol; Sulfurol; alpha-Terpineol; Tetrahydro Linalool; Thymol; Benzylalcohol; Bisabolole; Borneole; Fenchole; Isopulegole; Terpin- eole; Verbenole; Ambrein; Aphidicolin; Betulin; Cadinol; Carveol; Cavacrol; Cedrol; p-Cre- sol; Cubebol; Cuminalkohol; Cycloartenol; Dihydrocarveol; Elemol; Farnesol; Geranylgeraniol; 1 -Hexanol; Hexenol; Ipsdienol; Isophytol; Isopulegol; Khusimol; Lanosterin; Ledol; Lu- peol; Myrcenol; Nerol; Perillaalkohol; Phenylethylalkohol; Phytol; Rhodinol; Sclareol; Spathulenol; and Terpineol.

Preferably, the, one, two, three or more or all aldehyde(s) in the perfume oil is/are selected from the group consisting of 2,6,10-trimethylundec-9-enal (141-13-9; Adoxal; Farenal); alpha-, 3, 3-trimethyl-cyclohexanemethanolformate (25225-08-5; Aphermate); 4-(1 , 1-di- methylethyl)-benzenepropanal (18127-01-0; Bourgeonal); 6-methoxy-2,6-dimethyloctanal (929253-05-4; Calypsone); 4-methoxy-. alpha. -methyl-benzenepropanal (5462-06-6; Canthoxal); a,2,2,6-tetramethylcyclohexenebutanal (65405-84-7; Cetonal); 8,8-dimethyl- 1 ,2,3,4,5,6,7,8-octahydro-2-naphthaldehyde + 1 ,2,3,4,5,6,7,8-octahydro-5,5-dimethyl-2- naphthalenecarboxaldehyde (68991-96-8; 68991-97-9; Cyclomyral); 4-(octahydro-4,7- methano-5H-inden-5-ylidene butanal (30168-23-1 ; Dupical); 4,8-dimethyl-4,9-decadienal (71077-31-1 ; Floral Super); 3-(4-ethylphenyl)-2,2-dimethylpropanal + 3-(2-ethylphenyl)- 2,2-dimethylpropanal (67634-15-5; 67634-14-4; Florazon); beta-methyl-3-(1-methylethyl)- benzenepropanal (12509-85-5; Florhydral); methylenedioxyphenyl-methylpropanal (1205- 17-0; Helional); a,4-dimethylbenzenepropanal (41496-43-9; Jasmorange, Satinaldehyde); (Z,E)-2,4-dimethyl cyclohex-3-ene-1-carbaldehyde (68039-49-6; 68737-61-1 ; Ligustral, Tripalal, Cyclal C, Vertocitral) ; 3-(4-tert-butylphenyl)butanal (80-54-6; Lilial); (1 R)-p,4-di- methyl-3-cyclohexene-1-propanal (199445-85-7; Liminal); (4R)-4-(1-Methylethyl)-1-cyclo- hexene-1-propanal (1378867-81-2; Lilybelle); (4S)-4-(1-Methylethyl)-1-cyclohexene-1-pro- panal (1378867-82-3; Lilybelle Isomer); 4-(4-Hydroxy-4-methyl-pentyl)-3-cyclohexen-1- carboxyaldehyde (130066-44-3; Lyral); 6-methyl-1-8-yl-methyleth l-bicyclo[2.2.2]oct-5- ene-2-carboxaldehyde (67845-30-1 ; Maceal); (±)-2,6-Dimethyl-5-heptenal (106-72-9; Melonal); (E)-2,6,10-trimethylundeca-5,9-dienal (54082-68-7; Oncidal); 6,6-Dimethyl-2-nor- pinene-2-propionaldehyde (33885-51-7; Pinoacet aldehyde); 1-methyl-4-(4-methyl-3-pen- tenyl)cyclohex-3-ene-1 -carboxaldehyde + 6,6-dimethyl-2-norpinene-2-propionaldehyde (119652-81-2; 52475-86-2; Precyclemone B); 3-phenylbutanal (16251-77-7; Trifernal); oc- tahydro-5-methoxy-4,7-methano-1 H-indene-2-carboxaldehyde (86803-90-9; Scentenal); rel-(3aR,4R,5R,7R,7aR)-octahydro-4,7-methano-1 H-indene-5-carboxaldehyde (145374- 28-3; Vertral); 4-(4-methyl pent-3-enyl) cyclohex-3-ene-1-carbaldehyde (37677-14-8; Vertomugal); 1-Hexanal; 1-Heptanal; Octanal; 2-Nonen-1-al; Nonanal; Decanal; Unde- cenal; 2-Methyldecanal; Dodecanal; 2-Methylundecanal; Anisic Aldehyde; Benzaldehyde; Citral; Citronellal; Cinnamaldehyde; Cuminic Aldehyde; Cyclamen aldehyde; Dihydrocitron- ellal; trans-2-dodecenal; Ethyl Vanillin; Geranial; Heliotropin/Piperonal; Hexyl Cinnamaldehyde; trans-2-hexenal; Alpha-hexyl-cinnamic aldehyde; Hydratropic Aldehyde; Hxdroxy Citronellal; Isocyclocitral; Methoxycitronellal; Methyl cinnamaldehyde; Neral; Phenylacetaldehyde; Tangerinal; Cyclamen Homoaldehyde; and Vanillin.

Preferably, the, one, two, three or more or all amine(s) and/or amide(s) and/or nitrile(s) in the perfume oil is/are selected from the group consisting of 3,7-dimethyloct-6-enenitrile (51566-62-2; Argunitril); (E/Z)-3-methyl-5-phenylpent-2-enenitrile (53243-59-7; 53243-60- 0; 93893-89-1 ; Citronitrile); 3,7-dimethylnona-2,6-dienenitrile (61792-11-8; Lemonile); 4- [(3E)-4,8-dimethylnona-3,7-dienyl]pyridine (38462-23-6; Maritima); tridec-2-enenitrile (22629-49-8; Ozonil); 2-cyclohexylidene-2-phenylacetonitrile (10461-98-0; Peonile); 5-me- thyl-3-heptanoneoxime (22457-23-4; Stemone); and indole.

Preferably, the, one, two, three or more or all ester(s) in the perfume oil is/are selected from the group consisting of cis-2-tert-butylcyclohexyl acetate + (2-tert-butylcyclohexyl) acetate (20298-69-5; 88-41-5; Argumex HC I LC); ethyl 3-methyl-3-phenyloxirane-2-carboxylate (77-83-8; Aldehyde C16 so-called); prop-2-enyl 2-cyclohexyloxyacetate (68901-15-5; Cy- clogalbanat); methyl 2,4-dihydroxy-3,6-dimethylbenzoate (4707-47-5; Evernyl); 4- methylpentan-2-yl (E)-but-2-enoate (35206-51-0; Frutinat); ethyl 2-ethyl-6,6-dimethylcyclo- hex-2-ene-1 -carboxylate (57934-97-1 ; 77851-07-1 ; Givescone); methyl 3-oxo-2-pentylcy- clopentaneacetate (24851-98-7; Hedione); 2-(1-(3',3'-dimethyl-1 '-cyclohexyl)ethoxy)-2- methyl propyl propanoate (141773-73-1 ; Helvetolide); 3a,4,5,6,7,7a-hexahydro-4,7-meth- anoinden-6-yl acetate (5413-60-5; Herbalflorat); 3a,4,5,6,7,7a-hexahydro-4,7-metha- noinden-6-yl acetate (5413-60-5; Herbalflorat); [(Z)-hex-3-enyl] methyl carbonate (67633- 96-9; Leafovert); ethyl 2-methylpentanoate (39255-32-8; Manzanate); 4-tert-Butylcyclo- hexyl acetate (32210-23-4; Oryclon Spezial; Woody acetate); 2-(phenoxy)ethyl 2- methylpropanoate (103-60-6; Phenirat); 2-[1-(3,3-Dimethylcyclohexyl)ethoxy]-2-oxoethyl propionate (236391-76-7; Romandolide); ethyl 2-cyclopent-2-en-1-ylacetate (15848-49-4; Sultanene); (1 S,2R,5S)-5-methyl-2-(1-methylethyl)-cyclohexanolacetate + [(1 R,2S,5R)-5- methyl-2-propan-2-ylcyclohexyl]-acetate (29066-34-0; 89-48-5; Symfresh RF I Menthylacetate); 3-hydroxy-2,2,4-trimethylpentyl 2-methylpropanoate (25265-77-4; Symfresh NX); (4-methyl-4-phenylpentan-2-yl)-acetate (68083-58-9; Vertikolacetat); Allyl Amyl Glycolate; Allyl Caproate; Allyl Cyclohexyl Propionate; Allyl Heptoate; Benzyl Acetate; Benzyl Salicylate; Citronellyl Acetate; Dimethyl Benzyl Carbinyl Acetate ; Dimethyl Benzyl Carbinyl Butyrate; Cedryl Acetate; Ethyl Butyrate; Ethyl Caproate; Trans/Cis-2,4-Ethyl Decadienoate; Ethyl acetoacetate; Ethyl-2-Methyl Butyrate; Ethylene Brassylate ; Geranyl Acetate; Herbyl Propionate; Cis/Trans-3-Hexenyl Acetate; Cis-3 Hexenyl Acetate; Cis-3 Hexenyl Butyrate; Cis-3-Hexenyl Isobutyrate; Cis-3-Hexenyl Salicylate; Hexyl Acetate; Hexyl Butyrate; Hexyl Isobutyrate; Hexyl Salicylate; Isoamyl Acetate; Isobornyl Acetate; Isobutyl Acetate; Isoeugenyl Acetate; Linalyl Acetate; Methyl cinnamate; Methyl Octin Carbonate; Neryl Acetate; Nopyl Acetate; Phenylethyl Butyrate; Phenylethyl Cinnamate; Prenyl Acetate; Styralyl Acetate; and Methylanthranilat.

Preferably, the, one, two, three or more or all ether(s) in the perfume oil is/are selected from the group consisting of (3aR,5aS,9aS,9bR)-3a,6,6,9a-tetramethyl-2,4,5,5a,7,8,9,9b- octahydro-1 H-benzo[e][1]benzofuran (6790-58-5; Ambroxide); 5-hexyl-4-methyloxolan-2- one (67663-01-8; Aprifloren); cyclohexadec-2-en-1-one (2550-59-6; 3100-36-5; 88642-03- 9; Aurelione); 3,4-diethyl-2,5-dimethylcyclohex-2-en-1-one (68845-36-3; Azarbre); 1 ,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta(g)-2-benzopyran (1222-05-5; Galaxolide); (2R,4S)-2-methyl-4-propyl-1 ,3-oxathiane + 2-methyl-4-propyl-1 ,3-oxathiane (59323-76-1 , 261-699-8; Oxane/Oxanthia; 3,7'-Dimethyl-3,4,4a,5,8,8a-hexahydrospiro- (1 ,4-methanonaphthalene- 2(1 H),2'-oxirane) (41816-03-9; Rhubofix); Anethol; Lime Oxide; Nerolin Yara Yara; and Orange Flower Ether.

Preferably, the, one, two, three or more or all ketone(s) in the perfume oil is/are selected from the group consisting of 7-methyl-3,4-dihydro-2H-1 ,5-benzodioxepin-3-one (249-320- 4; Calone); 1 ,2,3,5,6,7-hexahydro-1 ,1 ,2,3,3-pentamethyl-4H-inden-4-one (251-649-3; Cashmeran); [3R-(3a,3ap,6a,7p,8aa)]-octahydro-6-methoxy-3,6,8,8-tetramethyl-1 H-3a,7- methanoazulene + (3R,3aS,6R,7R,8aS)-octahydro-6-methoxy-3,6,8,8-tetramethyl-1 H- 3a,7-methanoazulene (19870-74-7; 67874-81-1 ; Cedramber); 3a,6,6,9a-tetramethyl- 2,4,5,5a,7,8,9,9b-octahydro-1 H-benzo[e][1]benzofuran (3738-00-9; Cetalox); 1-(5,5-dime- thyl-1-cyclohexenyl)pent-4-en-1-one (56973-85-4; Dynascone, Galbascone); 1-[bis(2-hy- droxypropyl)amino]propan-2-ol; 5-methylhept-2-en-4-one (102322-83-8; 81925-81-7; Fil- bertone); 4-(4-hydroxyphenyl)butan-2-one (5471-51-2; Frambinon); (8E)-cyclohexadec-8- en-1-one (3100-36-5; Globanone); 1-(2,3,8,8-tetramethyl-1 ,3,4,5,6,7-hexahydronaphtha- len-2-yl)ethanone (54464-57-2; Iso E Super); cyclohexadecanone (2550-52-9; Iso- muscone); 5,5,9,13-tetramethyl-14,16-dioxatetracyclo[11 .2.1 .01 ,10.04, 9]hexadecane (57345-19-4; Ketamber); 4-(1 -Ethoxyvinyl)-3, 3,5,5, -tetramethyl-cyclohexane-1 - one(57345-19-4; Kephalis); 5-hexyl-5-methyloxolan-2-one (7011-83-8; Lactojasmone); (E)-3-methyl-4-(2,6,6-trimethyl-1-cyclohex-2-enyl)but-3-en-2-one (127-51-5; Methyl Ionone Gamma Coeur); N-1-(2,6,6-trimethyl-1-cyclohex-2-enyl)pent-1-en-3-one (1335-46-2; Methyl Ionone Gamma Pure); (5E)-3-methylcyclopentadec-5-en-1-one; (5E)-3-methylcy- clopentadec-5-en-1-one (63314-79-4; 82356-51-2; Muscenone); 3-methylcyclopentade- can-1-one (541-91-3; Muscone); 2-[2-(4-methyl-1-cyclohex-3-enyl)propyl]cyclopentan-1- one (95962-14-4; Nectaryl); 1-(3-methyl-1-benzofuran-2-yl)ethan-1-one (23911-56-0; Nerolione); octahydro-7-methyl-1 ,4-methanonaphthalen-6(2H)-one (41724-19-0; Plicatone); 1-(3,5,5,6,8,8-hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone + 1 -(3, 5, 5, 6,8,8- hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone (1506-02-1 ; 21145-77-7; Tonalide); 2,2,5-trimethyl-5-pentylcyclopentan-1-one (65443-14-3; Veloutone); 1-[(3R,3aR,7/?,8aS)- 2,3,4,7,8,8a-Hexahydro-3,6,8,8-tetramethyl-1 H-3a,7-methanoazulen-5-yl]ethenone (32388-55-9; Vertofix); Damascenone; Alpha Damascone; Beta Damascone; Delta Damascone; Beta Dihydro Ionone; Dihydro Jasmone; Ethyl Maltol; Gamma Hexalactone; Alpha Ionone; Beta Ionone; Jasmone Cis; Maltol; Methyl Ionone; Menthone; and Isomenthone.

Preferably, the, one, two, three or more or all lactone(s) in the perfume oil is/are selected from the group consisting of 5-heptyloxolan-2-one (104-67-6; Aldehyde C14 So-Called); 5- pentyloxolan-2-one (203-219-1 ; Aldehyde C18 So-Called); (9Z)-17-oxacycloheptadec-9- en-1-one (28645-51-4; Ambrettolide); (12E)-1-oxacyclohexadec-12-en-2-one + (3E)- oxacyclohexadec-3-en-2-one (111879-80-2; 34902-57-3; Globalide); 16-oxacyclohexa- decan-1-one (106-02-5; Supra Macrolide); Delta Decalactone; Gamma Decalactone; Gamma Octalactone; Rose Oxide High Cis; Jasmin Lactone; and Jasmolactone CNC. Preferably, the, one, two, three or more or all terpene(s) in the perfume oil is/are selected from the group consisting of Galbanolene super; Galbanum decatriene; Limonene; Myrcen; and Phellandren.

Preferably, the rim block further comprises one or more actives selected from the group consisting of cleaning agents, preferably selected from fatty alcohol alkoxylate, such as alkox- ylated C12-C20 fatty alcohols, or alkoxylated C16-C18 fatty alcohols, ethylene ox- ide/propylene oxide block polymers, fatty acid alkanolamides, fatty acid polyglycol ethers, alkyl polyglycosides, fatty acid glucamides, aliphatic sulfates, such as fatty alcohol sulfates, fatty alcohol ether sulfates, dialkyl ether sulfates, monoglyceride sulfates, and aliphatic sulfonates, such as alkane sulfonates, ether sulfonates, n- alkyl ether sulfonates, ester sulfonates and lignin sulfonates, fatty acid cyanamides, sulfosuccinates (sulfosuccinic acid esters), such as sulfosuccinic acid mono- and di- C8-C18-alkyl esters, sulfosuccinamates, sulfosucci-namides, fatty acid isethionates, acylaminoalkane sulfonates (fatty acid taurides), fatty acid sarcosinates, ether carboxylic acids and alkyl (ether) phosphates as well as a-sulfo fatty acid salts, acyl glutamates, monoglyceride disulfates, alkyl ethers of glycerol disulfate, alkyl benzene sulfonate, C8-C18 alkyl sulphate, alkyl ether sulfates, sulfonates such as the alkyl sulfonates, the olefin sulfonates, the alkyloxy, the alkyl aryl sulfonates, sulfate esters, the alkyl carbonates, alkyl ether carboxylates, the fatty acid taurides, isethionates, soaps, alkyl benzenesulfonates, alkanesulfonates, olefin sulfonates, alkylether sulfonates, glycerol ether sulfonates, methyl ester sulfonates, sulfofatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, fatty acid ether sulfates, hydroxy mixed ether sulfates, monoglyceride (ether) sulfates, fatty acid amide (ether) sulfates, mono- and dialkyl sulfosuccinates, mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide soaps, ether carboxylic acids and salts thereof, fatty acid isethionates, fatty acid sarcosinates, fatty acid taurides, N-acylamino acids such as, for example, acyl lactylates, acyl tartrates, acyl glutamates and acyl aspartates, alkyl oli- goglucoside sulfates, protein fatty acid condensates (particularly wheat-based vegetable products) and alkyl (ether) phosphate, complexing agents, preferably selected from aminotrimethylene phosphonic acid, beta-alanine diacetic acid, calcium disodium EDTA, citric acid, cyclodextrin, cyclohexanediamine tetraacetic acid, diammonium citrate, diammonium EDTA, diethylenetriamine pentamethylene phosphonic acid, dipotassium EDTA, disodium azacy- cloheptane diphosphonate, disodium EDTA, disodium pyrophosphate, EDTA, eti- dronic acid, galactaric acid, gluconic acid, glucuronic acid, HEDTA, hydroxypropyl cyclodextrin, methyl cyclodextrin, pentapotassium triphosphate, pentasodium aminotrimethylene phosphonate, pentasodium ethylenediamine tetramethylene phos- phonate, pentasodium pentetate, pentasodium triphosphate, pentetic acid, phytic acid, Potassium citrate, potassium EDTMP, potassium gluconate, potassium polyphosphate, potassium trisphosphonomethylamine oxide, ribonic acid, sodium chitosan methylene phosphonate, sodium citrate, sodium diethylenetriamine pentamethylene phosphonate, sodium dihydroxyethylglycinate, sodium EDTMP, sodium gluceptate, sodium gluconate, sodium glycereth-1 polyphosphate, sodium hexametaphosphate, sodium metaphosphate, sodium metasilicate, sodium phytate, sodium polydimethylglycinophenolsulfonate, sodium trimetaphosphate, TEA-EDTA, TEA-polyphosphate, tetrahydroxyethyl ethylenediamine, tetrahydroxypropyl ethylenediamine, tetrapotassium etidronate, tetrapotassium pyrophosphate, tetrasodium EDTA, tetrasodium etidronate, tetrasodium pyrophosphate, tripotassium EDTA, trisodium dicarboxymethyl alaninate, risodium EDTA, trisodium HEDTA, trisodium NTA and risodium phosphate, biocides, preferably selected from amine oxides, CTAC (cetyl trimethyl ammonium chloride), and BAC (benzalkonium chloride), metal salts such as zinc citrate, zinc oxide, zinc pyrethiones, and octopirox; organic acids, such as sorbic acid, benzoic acid, and their salts; parabens, such as methyl paraben, propyl paraben, butyl paraben, ethyl paraben, isopropyl paraben, isobutyl paraben, benzyl paraben, and their salts; alcohols, such as benzyl alcohol, phenyl ethyl alcohol; boric acid; 2,4,4'- tri- chloro-2-hydroxy-diphenyl ether; phenolic compounds, such as phenol, 2-methyl phenol, 4-ethyl phenol; essential oils such as rosemary, thyme, lavender, eugenol, geranium, tea tree, clove, lemon grass, peppermint, or their active components such as anethole, thymol, eucalyptol, farnesol, menthol, limonene, methyl salicylate, salicylic acid, terpineol, nerolidol, geraniol, ethanol, n-propanol, i-propanol, 1 , 3-butane- diol, phenoxyethanol, 1 , 2-propylene glycol, glycerol, undecylenic acid, citric acid, lactic acid, benzoic acid, salicylic acid, thymol, 2-benzyl-4-chlorophenol, 2,2'-meth- ylene-bis- (6-bromo-4-chloro phenol), 2,4,4'-trichloro-2'-hydroxydiphenyl ether, N- (4-chlorophenyl)-N- (3,4-dichlorophenyl)- urea, N, N '- (1 , 10-decandiyldi-1 -pyridinyl- 4 ylidene)-bis-(l-octanamine) dihydrochloride, N, N'-bis (4-chlorophenyl)-3,12- diimino-2,4, 1 1 , 13-tetraazatetradecanediimidamide, antimicrobial surface-active quaternary compounds, guanidines and sodium dichloroisocyanurate (DCI, 1 , 3-di- chloro-5H-1 , 3, 5-triazine-2, 4, 6-trione sodium salt), corrosion Inhibitors, preferably selected from cyclohexylamine, diammonium phosphate, dilithium oxalate, dimethylamino methylpropanol, dipotassium oxalate, dipotassium phosphate, disodium phosphate, disodium pyrophosphate, disodium tetrapropenyl succinate, hexoxyethyl diethylammonium, phosphate, nitromethane, potassium silicate, sodium aluminate, sodium hexametaphosphate, sodium metasilicate, sodium molybdate, sodium nitrite, sodium oxalate, sodium silicate, stearamidopropyl dimethicone, tetrapotassium pyrophosphate, tetrasodium pyrophosphate and triisopropanolamine, enzymes, preferably selected from proteases, lipases, amylases, hydrolases and/or cellulases, and bleaching agents, preferably selected from peroxides, per acids and/or perborates, preferably from hydrogen peroxide; sodium percarbonate or phthalimidoperoxyhex- anoic acid.

It is preferred in the rim block according to the present invention that the rim block comprises at least 0.00001 wt.-%, preferably at least 0.00005 wt.-%, further preferably at least 0.0001 wt.-%, particularly preferably at least 0.0005 wt.-%, even further preferably at least 0.001 wt.-% of the encapsulated fragrance composition according to the invention, based on the total weight of the rim block.

As described above, it was advantageously found that the encapsulated fragrance composition according to the invention can intensify a scent (including a freshness impression) of e.g. a perfume oil, as shown in the examples, which was not observed with other encapsulated fragrance compositions. This characteristic is particularly advantageous in a rim block, which shall provide a rather intense scent.

The present invention further relates to a method for producing a rim block according to the invention, comprising i) providing the encapsulated fragrance composition according to the invention, ii) providing a rim block base, preferably a solid rim block base, iii) providing one or more perfume oil(s), preferably as described herein, iv) mixing the components provided in steps i), ii) and iii) and subjecting the obtained mixture to a pressing, molding or extrusion process to obtain a rim block.

Preferably, the provided (solid) rim block base comprises one or more actives selected from cleaning agents, complexing agents, biocides, corrosion Inhibitors, enzymes, bleaching agents, each as described above.

The present invention further relates to the use of the encapsulated fragrance composition according to the invention for providing, modulating or intensifying a scent, wherein the use comprises contacting the encapsulated fragrance composition with one or more perfume oil(s) and water.

Preferably, one or more or all of the one or more perfume oil(s), with which the encapsulated fragrance composition according to the invention is contacted, provides a / the scent, which shall be modulated or intensified.

Preferably, the term “use of the encapsulated fragrance composition according to the invention for providing a scent” refers to a situation, in which one or more or all of the one or more perfume oil(s), with which the encapsulated fragrance composition according to the invention is contacted, would provide a I the scent, if it I they would be present in higher amount or concentration. However, by contacting the perfume oil(s) with the encapsulated fragrance composition according to the invention and water, a scent is provided I perceivable already by this amount I concentration.

The present invention further relates to the use of the rim block according to the invention, for providing, modulating or intensifying a scent, wherein the use comprises contacting the rim block with water.

Preferably, one or more or all of the one or more perfume oil(s), present in the rim block according to the invention, provide(s) a I the scent, which shall be provided with the rim block. Preferably, the scent is provided upon contact of the rim block with water. Preferably, the scent is already provided before contacting the rim block with water, but contacting the rim block with water provides a more intense scent. Particularly preferably in the use of the encapsulated fragrance composition according to the invention and/or the use of the rim block according to the invention, the encapsulated fragrance composition comprises a1) 7.5 to 20 wt.-%, preferably 10 to 17.5 wt.-%, further preferably 12 to 15 wt.-% of the aldehydes a1), a2) 5 to 15 wt.-%, preferably 6 to 10 wt.-%, further preferably 7 to 8 wt.-% of the butyrates a2), a3) 12 to 20 wt.-%, preferably 13 to 17 wt.-%, further preferably 14 to 16 wt.-% of the acetates a3), a4) 5 to 12.5 wt.-%, preferably 7.5 to 10 wt.-%, further preferably 8 to 9.5 wt.-% of the ester salts a4), a5) 4 to 10 wt.-%, preferably 5 to 7.5 wt.-%, further preferably 6 to 7 wt.-% of the menthon compounds a5), and a6) 0.75 to 5 wt.-%, preferably 1 to 3 wt.-%, further preferably 1.5 to 2.5 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a), and the scent to be provided, modified or intensified preferably is or comprises freshness.

Particularly preferably in the use of the encapsulated fragrance composition according to the invention and/or the use of the rim block according to the invention, the encapsulated fragrance composition comprises a1) 5 to 12 wt.-%, preferably 7 to 11 wt.-%, further preferably 8 to 10 wt.-% of the aldehydes a1), a2) 0.25 to 4.5 wt.-%, preferably 0.5 to 2.5 wt.-%, further preferably 0.75 to 1 .5 wt.-% of the butyrates a2), a3) 18 to 30 wt.-%, preferably 22.5 to 25 wt.-% of the acetates a3), a4) 12.5 to 20 wt.-%, preferably 15 to 17.5 wt.-% of the ester salts a4), a5) 0.5 to 3.5 wt.-%, preferably 1 to 3 wt.-%, further preferably 1.5 to 2.5 wt.-% of the menthon compounds a5), and a6) 20 to 40 wt.-%, preferably 27.5 to 37.5 wt.-%, further preferably 30 to 35 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a), and the scent to be provided, modified or intensified preferably does not include freshness.

The present invention further relates to a method for providing, modulating or intensifying a scent, comprising the steps i) providing the encapsulated fragrance composition according to the invention and one or more perfume oil(s), preferably as described herein, ii) contacting the provided fragrance with the provided perfume oil(s) and water.

The present invention further relates to a method for providing, modulating or intensifying a scent, comprising the steps i) providing the encapsulated fragrance composition according to the invention or the rim block according to the invention, and ii) contacting the provided fragrance or, respectively, rim block with water.

Particularly preferably in the method for providing, modulating or intensifying a scent according to the invention, the encapsulated fragrance composition comprises a1) 7.5 to 20 wt.-%, preferably 10 to 17.5 wt.-%, further preferably 12 to 15 wt.-% of the aldehydes a1), a2) 5 to 15 wt.-%, preferably 6 to 10 wt.-%, further preferably 7 to 8 wt.-% of the butyrates a2), a3) 12 to 20 wt.-%, preferably 13 to 17 wt.-%, further preferably 14 to 16 wt-% of the acetates a3), a4) 5 to 12.5 wt.-%, preferably 7.5 to 10 wt.-%, further preferably 8 to 9.5 wt.-% of the ester salts a4), a5) 4 to 10 wt.-%, preferably 5 to 7.5 wt.-%, further preferably 6 to 7 wt.-% of the menthon compounds a5), and a6) 0.75 to 5 wt.-%, preferably 1 to 3 wt.-%, further preferably 1.5 to 2.5 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a), and the scent to be provided, modified or intensified preferably is or comprises freshness.

Particularly preferably in the method for providing, modulating or intensifying a scent according to the invention, the encapsulated fragrance composition comprises a1) 5 to 12 wt.-%, preferably 7 to 11 wt.-%, further preferably 8 to 10 wt.-% of the aldehydes a1), a2) 0.25 to 4.5 wt.-%, preferably 0.5 to 2.5 wt.-%, further preferably 0.75 to 1 .5 wt.-% of the butyrates a2), a3) 18 to 30 wt.-%, preferably 22.5 to 25 wt.-% of the acetates a3), a4) 12.5 to 20 wt.-%, preferably 15 to 17.5 wt.-% of the ester salts a4), a5) 0.5 to 3.5 wt.-%, preferably 1 to 3 wt.-%, further preferably 1.5 to 2.5 wt.-% of the menthon compounds a5), and a6) 20 to 40 wt.-%, preferably 27.5 to 37.5 wt.-%, further preferably 30 to 35 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a), and the scent to be provided, modified or intensified preferably does not include freshness.

Preferably, the term “scent”, as used herein for describing the invention, refers to olfactory impressions, preferably desired olfactory impressions, and shall also include an impression of freshness. Preferably, the term “modulating a scent”, as used herein fordescribing the invention, refers to increasing the longevity of the scent and/or to accelerating the onset of the scent.

Preferably the term “intensifying a scent”, as used herein for describing the invention, refers to increasing the perceived intensity of the scent.

Further aspects and advantages of the invention result from the subsequent description of preferred examples.

Examples

Example 1 : Fragrance compositions

Example 1a: According to the invention

Fragrance composition 1a, as in the below table, was provided and encapsulated with a maltodextrin matrix as described in in EP 1139791 B1 .

Example 1 b: According to the invention

Fragrance composition 1 b, as in the below table, was provided and encapsulated with a maltodextrin matrix as described in in EP 1139791 B1.

Example 1c: Not according to the invention Fragrance composition 1c, as in the below table, was provided and encapsulated with a maltodextrin matrix as described in in EP 1139791 B1.

Example 1d: Not according to the invention

Fragrance composition 1d, as in the below table, was provided and encapsulated with a maltodextrin matrix as described in in EP 1139791 B1 . Example 1 e: Not according to the invention

Fragrance composition 1e, as in the below table, was provided and encapsulated with a maltodextrin matrix as described in in EP 1139791 B1.

Example 2: Increasing the intensity

Consumer test series were conducted to evaluate the intensity of different rim blocks.

Different cabins, each including a toilet, were equipped with a rim block (2 balls due to the size ofthe cabin) in the evening. During the night, all cabins are flushed once per hour. The next day, the cabin-ventilation and the automated flush is turned off and the evaluation starts one hour after the last flush. However, in cabins representing the “after flush” samples, it was flushed twice per hour during the evaluation to keep the rim block wet.

For evaluating the scent, respondents sniff through a small window in the cabin wall. Precisely, the respondent opens the window, sniffs and closes the window. Then, the scent is evaluated using a questionnaire.

The evaluations were performed in 3 rounds, with 71 to 82 respondents in each round.

Example 2a: No difference before flush

The used rim blocks contained 4 wt.-% of the test perfume oil B. In one approach, the rim blocks further contained 1 wt.-% of the encapsulated fragrance composition according to Example 1 a.

The evaluation of the scent before flush did not reveal significant differences between the approaches.

Composition of test perfume oil B:

Example 2b: Increasing the intensity after flush

The used rim blocks contained 3 wt.-% of the test perfume oil B and 1 wt.-% of the encapsulated fragrance composition according to Example 1 a.

The evaluation of the scent before flush revealed an intensity with the mean score of 2.6.

However, the evaluation of the scent after flush revealed an intensity with the mean score of 3.0. The difference between the intensity before and after flush was significant.

Further, 86 % of the respondents voted that the scent after flush is more intense than before flush.

The same experiment was conducted with rim blocks containing 4 wt.-% of the perfume oil “Blue Sky” and 1 wt.-% of the encapsulated fragrance composition according to Example 1 a, with similar results. 65 % of the respondents voted that the scent after flush is more intense than before flush.

The contents of test perfume oil B are described in Example 2a.

Example 2c: Comparison with other fragrance compositions

The used rim blocks contained

(1) 3 wt.-% of the test perfume oil O, and

(2) 3 wt.-% of the test perfume oil O and 1 wt.-% of the encapsulated fragrance composition according to Example 1 b in a first approach, and

(1 ’) 3 wt.-% of the test perfume oil O, and (3) 3 wt.-% of the test perfume oil O and 1 wt.-% of the encapsulated fragrance composition according to Example 1c in a second approach.

The respondents evaluated the overall liking of the scents. No significant differences were observed.

The respondents evaluated the intensity of the scents after flush and the following results were observed:

It was found that the encapsulated fragrance composition according to Example 1b (ac- cording to the invention) significantly intensified the scent of the perfume oil, whereas the encapsulated fragrance composition according to Example 1c did not provide such an effect.

Composition of test perfume oil O:

Example 3: Increase of the longevity

Consumer test series were conducted to evaluate the intensity and longevity of rim blocks even after a high number of flushes. Different cabins, each including a toilet, were equipped with a rim block (2 balls due to the size of the cabin).

For evaluating the scent, respondents sniff through a small window in the cabin wall. Precisely, the respondent opens the window, sniffs and closes the window.

The initial scent and the scent after 100 flushes were evaluated by respondents. The inten- sities are evaluated on a scale from no odour (0) to strongest imaginable (10). Values correspond to the arithmetic means of the test. The ranking results are statistically analysed with a Friedmann-test and a pairwise comparison (Busch-Stockfisch, Praxishandbuch, Sensorik).

The used rim blocks contained (i) 3 wt.-% of the test perfume oil P, or

(ii) 3 wt.-% of the test perfume oil P and 1 wt.-% of the encapsulated fragrance composition according to Example 1 b.

The intensities are evaluated before flush (n=18) and after 100 flushes (n=20) to analyse an effect on the longevity of the scent.

It was found that the intensity of the rim block (i) was reduced after 100 flushes. However, the intensity after 100 flushes was almost as the initial intensity for rim block (ii) using the encapsulated fragrance composition according to Example 1 b. Thus, the encapsulated fra- grance composition according to Example 1 b increased the longevity of the scent.

Composition of test perfume oil P: Example 4: Increasing the perceived freshness

Consumer test series were conducted to evaluate the freshness intensity of different rim blocks after flush.

Different cabins, each including a toilet, were equipped with a rim block (2 balls due to the size of the cabin).

Example 4. a: Test perfume Oil L

The evaluations were performed with 63 to 74 respondents.

The used rim blocks contained

(1) 4 wt.-% of the test perfume oil L, and

(2) 3 wt.-% of the test perfume oil L and 1 wt.-% of the encapsulated fragrance composition according to Example 1 b in a first approach, and

(1 ’) 3 wt.-% of the test perfume oil L,

(3) 3 wt.-% of the test perfume oil L and 1 wt.-% of the encapsulated fragrance composition according to Example 1d, and

(4) 3 wt.-% of the test perfume oil L and 1 wt.-% of the encapsulated fragrance composition according to Example 1e in a second approach.

The evaluation of freshness revealed the following results:

It was found that the encapsulated fragrance composition according to Example 1b (ac- cording to the invention) intensified the freshness of the perfume oil and provided a higher freshness even though less of the perfume oil was present in the rim block, whereas the encapsulated fragrance compositions according to Examples 1d and 1e did not provide such an effect even though the same amount of perfume oil was present in the rim block.

Composition of test perfume oil L:

Example 4.b: Test perfume oil O

The evaluations were performed with 72 respondents.

(1) 3 wt.-% of the test perfume oil O, and

(1 ’) 3 wt.-% of the test perfume oil O, and

(3) 3 wt.-% of the test perfume oil O and 1 wt.-% of the encapsulated fragrance composition according to Example 1 c in a second approach.

The evaluation of freshness revealed the following results:

It was found that the encapsulated fragrance composition according to Example 1 b (according to the invention) intensified the freshness of the perfume oil and provided a higher freshness, whereas the encapsulated fragrance composition according to Examples 1 c did not provide such an effect.

Moreover 72 % of the respondents voted that the freshness is more intense in rim block (2) than rim block (1).

The contents of test perfume oil O are described in Example 2c. Example 5: Increase of the longevity

Consumer test series were conducted to evaluate the freshness of rim blocks even after a high number of flushes.

The initial freshness and the freshness after 100 flushes were evaluated by respondents. The freshness is evaluated on a scale from less (1) to strong (5). Values correspond to the arithmetic means of the test. The ranking results are statistically analysed with a Fried- mann-test and a pairwise comparison (Busch-Stockfisch, Praxishandbuch, Sensorik).

The used rim blocks contained

(i) 3 wt.-% of the test perfume oil P, or

The freshness was evaluated before flush (n=18) and after 100 flushes (n=20) to analyse an effect on the longevity of the scent.

It was found that the encapsulated fragrance composition according to Example 1 b already intensified the initial freshness. Further, it was also found that the freshness of rim block (i) was reduced after 100 flushes. However, the freshness after 100 flushes was much less reduced in rim block (ii) using the encapsulated fragrance composition according to Example 1 b. Thus, the encapsulated fragrance composition according to Example 1 b increased the longevity of the freshness.

The contents of test perfume oil P are described in Example 3.

Claims

1 . Encapsulated fragrance composition comprising or consisting of a) a fragrance composition, wherein the fragrance composition comprises a1) at least 7 wt.-% aldehydes selected from the group consisting of octanal, decanal, 2-Methylundecanal, gamma-undecalactone, and mixtures thereof, based on the total weight of the fragrance composition a), a2) 0.25 to 20 wt.-% butyrates selected from the group consisting of ethyl butyrate, ethyl-2-methylbutyrate, isoamyl butyrate, and mixtures thereof, based on the total weight of the fragrance composition a), a3) 12 to 35 wt.-% acetates selected from the group consisting of hexyl acetate, benzyl acetate, hexenyl acetate, prenyl acetate, triacetin, and mixtures thereof, based on the total weight of the fragrance composition a), a4) at most 20 wt.-% ester salts selected from the group consisting of diethyl malonate, allylcyclohexyl propionate, allyl heptylate, ethyl heptylate, 3,3,5-trimethylcyclohexyl acetate, allyl capronate, and mixtures thereof, based on the total weight of the fragrance composition a), wherein the fragrance composition comprises at least one of said ester salts, a5) at most 15 wt.-% of menthon compounds selected from the group consisting of menthon, isomenthon and mixtures thereof based on the total weight of the fragrance composition a), wherein the fragrance composition comprises at least one of said men- thon compounds, and a6) 0.5 to 45 wt.-% alcohols selected from the group consisting of hexenol, eucalyptol, borneol, 1 ,2-propylene glycol, and mixtures thereof, based on the total weight of the fragrance composition a), and b) capsule material, wherein the capsule material comprises maltodextrin and/or Gum Arabic.

2. Encapsulated fragrance composition according to claim 1 , comprising 10 to 40 wt.- %, preferably 15 to 30 wt.-%, further preferably 20 to 25 wt.-% of the fragrance composition a), based on the total weight of the encapsulated fragrance composition, and/or comprising 60 to 90 wt.-%, preferably 70 to 85 wt.-%, further preferably 75 to 80 wt.- % of the capsule material b).

3. Encapsulated fragrance composition according to any of the preceding claims, further comprising (E)-3,7-Dimethylocta-2,6-dienal and (Z)-3,7-Dimethylocta-2,6-di- enal, preferably wherein the summed amount of (E)-3,7-Dimethylocta-2,6-dienal and (Z)- 3,7-Dimethylocta-2,6-dienal in the fragrance composition a) is at least 15 wt.-%, preferably at least 20 wt.-%, further preferably at least 25 wt.-%, particularly preferably at least 27.5 wt.-%, based on the total weight of the fragrance composition a).

4. Encapsulated fragrance composition according to any of the preceding claims, comprising a1) at least 10 wt.-%, preferably 10 to 20 wt.-% of the aldehydes a1), a2) 5 to 15 wt.-%, preferably 6 to 10 wt.-% of the butyrates a2), a3) 12 to 20 wt.-%, preferably 13 to 17 wt.-% of the acetates a3), a4) 5 to 12.5 wt.-%, preferably 7.5 to 10 wt.-% of the ester salts a4), a5) 4 to 10 wt.-%, preferably 5 to 7.5 wt.-% of the menthon compounds a5), and a6) 0.75 to 5 wt.-%, preferably 1 to 3 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a).

5. Encapsulated fragrance composition according to any of claims 1 to 3, comprising a1) 7 to 12 wt.-%, preferably 8 to 11 wt.-% of the aldehydes a1), a2) 0.5 to 5 wt.-%, preferably 0.75 to 2.5 wt.-% of the butyrates a2), a3) 21 to 30 wt.-%, preferably 22.5 to 25 wt.-% of the acetates a3), a4) 13 to 20 wt.-%, preferably 14 to 17.5 wt.-% of the ester salts a4), a5) 0.5 to 3.5 wt.-%, preferably 1 to 3 wt.-% of the menthon compounds a5), and a6) 20 to 40 wt.-%, preferably 27.5 to 37.5 wt.-% of the alcohols a6), each based on the total weight of the fragrance composition a).

6. Method for producing the encapsulated fragrance composition according to any of claims 1 to 5, comprising a) providing fragrance composition a), capsule material b), and water b) mixing fragrance composition a), capsule material b), and water to obtain a mixture, preferably an emulsion, c) spraying the mixture obtained in step b) into a fluidised bed containing granulation nuclei produced therein, wherein the average residence time of the sprayed-in mixture in the fluidised bed is at most 20 minutes.

7. Encapsulated fragrance composition according to any of claims 1 to 5, obtained or obtainable by a method according to claim 6.

8. Rim block comprising the encapsulated fragrance composition according to any of claims 1 to 5 or 7 and one or more perfume oil(s).

9. Rim block according to claim 8, wherein the rim block comprises at least 0.00001 wt.-%, preferably at least 0.00005 wt.-%, further preferably at least 0.0001 wt.-%, particularly preferably at least 0.0005 wt.-%, even further preferably at least 0.001 wt.-% of the encapsulated fragrance composition according to any of claims 1 to 5 or 7, based on the total weight of the rim block.

10. Method for producing a rim block according to claim 8 or 9, comprising i) providing the encapsulated fragrance composition according to any of claims 1 to 5 or 7, ii) providing a solid rim block base, iii) providing one or more perfume oil(s), iv) mixing the components provided in steps i), ii) and iii) and subjecting the obtained mixture to a pressing, molding or extrusion process to obtain a rim block.

11 . Use of the encapsulated fragrance composition according to any of claims 1 to 5 or 7 for providing, modulating or intensifying a scent, wherein the use comprises contacting the encapsulated fragrance composition with one or more perfume oil(s) and water.

12. Use of the rim block according to claims 8 or 9, for providing, modulating or intensifying a scent, wherein the use comprises contacting the rim block with water.

13. Method for providing, modulating or intensifying a scent, comprising the steps i) providing the encapsulated fragrance composition according to any of claims 1 to 5 or 7 and one or more perfume oil(s), ii) contacting the provided fragrance with the provided perfume oil(s) and water.

14. Method for providing, modulating or intensifying a scent, comprising the steps i) providing the rim block according to claims 8 or 9, and ii) contacting the provided rim block with water.