Solid perfumed preparation in the form of microbeads and the use thereof

• US 20040106536A1
• Filed: 11/06/2002
• Published: 06/03/2004
• Est. Priority Date: 03/20/2000
• Status: Active Grant

• Current Assignee: V. Mane Fils
• Original Assignee: V. Mane Fils
• Inventors: Bleuez, Loic, Mane, Jean, Dailland, Pascal, Hannetel, Jean-Michel, Delpech, Guy, Hoc, Nathalie
• Granted Patent: US 7,723,284 B2
• Time in Patent Office: Days
• US Class Current: 512/4
• CPC Class Codes: A61L 9/012 characterised by being in a special form, e.g. gels, emulsions A61L9/048 takes precedence
• CPC Class Codes: Y10T 436/12 Condition responsive control

Abstract

The invention concerns a solid perfumed preparation with high persistency in the form of microbeads and comprising a volatile aromatic raw material, or a mixture of volatile aromatic raw materials, and one or several fusible excipients. Said preparation can further comprise one of the following constituents: one or more polymers dispersible in the melted mass formed by the constituents of the preparation, one or more mineral additives, one or more surfactants, one or more antioxidants, one or more colouring agents. The invention can be used in cosmetics and in household product industries.

Claims

1. A solid fragranced preparation with increased persistence in the form of microbeads, comprising a volatile aromatic raw material or a mixture of volatile aromatic raw materials, and one or more meltable excipients.

2. The preparation as claimed in claim 1, also comprising at least one of the following components:

one or more polymers that are dispersible in the molten mass of the components of the preparation,

one or more mineral additives,

one or more surfactants,

one or more antioxidants,

one or more colorants.

3. The preparation as claimed in either of claims 1 and 2, comprising at least 40% by weight, preferably from 60% to 90% and more preferably from 70% to 80%, of excipient(s).

4. The preparation as claimed in any one of claims 1 to 3, comprising from 0.1% to 60% by weight of aromatic raw material, preferably from 10% to 40% and more preferably from 20% to 30%.

5. The preparation as claimed in any one of claims 1 to 4, in which the volatile aromatic raw material(s) is (are) chosen from aromatic, terpenic and/or sesquiterpenic hydrocarbons;

aromatic alcohols;

primary, secondary or tertiary, saturated or unsaturated, cyclic or acyclic nonaromatic alcohols;

aldehydes;

phenols;

carboxylic acids;

aromatic and/or nonaromatic ethers and acetals in their acyclic or cyclic form;

heterocycles containing a nitrogen atom;

ketones;

aromatic or nonaromatic sulfides, disulfides and mercaptans, and essential oils.

6. The preparation as claimed in any one of claims 1 to 5, in which the meltable excipient(s) is (are) chosen from fatty alcohols;

fatty acids;

glycerol esters;

hydrogenated oils;

fatty acid salts;

waxes;

polyoxyethylene glycols of high molecular weight;

plant fats;

fatty acid esters;

alkyl methyl siloxanes.

7. The preparation as claimed in claim 6, comprising at least one alkylmethyl siloxane as excipient.

8. The preparation as claimed in claim 7, in which the alkylmethyl siloxane is present in an amount of at least 20% by weight.

9. The preparation as claimed in any one of claims 1 to 8, in which the aromatic raw material(s) is/are 2,6-dimethyl-7-octen-2-ol or methyl dihydrojasmonate.

10. The preparation as claimed in any one of claims 1 to 9, which is in the form of microbeads with a diameter of between 5 μ

m and 5 mm, preferably between 10 μ

m and 4 mm and even more preferably between 10 μ

m and 1 500 μ

m.

11. The preparation as claimed in any one of claims 1 to 10, in which the microbeads have a melting point of between 10°

C. and 90°

C., preferably between 25°

C. and 70°

C. and more preferably between 25°

C. and 30°

C. or 50°

C. and 60°

C.

12. A cosmetic composition or household product comprising a preparation as claimed in any one of claims 1 to 11.

13. The cosmetic composition as claimed in claim 12, chosen from fragrancing products, such as solid perfume;

bodycare and facialcare products, such as milk, cream and hydrogel;

rinse-out foaming products, such as shampoo and shower gel;

conditioning products, such as fixing hair gel and conditioner;

sun creams.

14. The household product as claimed in claim 12, chosen from detergent products, softening products and textile treatment products.

15. A process for manufacturing a preparation as claimed in any one of claims 1 to 11, characterized in that the aromatic raw material is mixed with the molten excipient(s) and the other components so as to obtain a molten mass, the molten mass is forced through a nozzle and the microbeads obtained are cooled so as to obtain solidified products, the temperature reached during the process being from 70 to 100°

C. depending on the duration of heating, which is between a few seconds and 4 hours.