Solid fragrance-containing composition with an inorganic/organic rheology modifier mixture

Patent metadata

Field	Value
Publication number	US-11760960-B2
Application number	US-202016858413-A
Country	US
Kind code	B2
Filing date	Apr 24, 2020
Priority date	Oct 24, 2017
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

A solid, particulate composition having at least one water-soluble carrier material, at least one fragrance and at least one water-miscible organic solvent, wherein the carrier material is a water-containing salt (hydrate) whose water vapor partial pressure at a specific temperature in the range from 30 to 100° C. corresponds to the H 2 O partial pressure of the saturated solution of this salt, such that the salt melts at this temperature in its own crystal water. The invention further relates to processes for producing the solid composition, and to a washing or cleaning product including the solid composition. In addition, the present invention also relates to the use of a washing or cleaning product of this kind for cleaning of textiles or hard surfaces, and corresponding methods of cleaning textiles or hard surfaces using a washing or cleaning product of this kind.

First claim

What is claimed is:

1. A solid, particulate composition comprising:
(a) 20 to 95 wt. %, based on the total weight of the composition, of at least one water-soluble carrier material selected from hydrous salts of which the water vapor partial pressure corresponds, at a specific temperature in the range from 30 to 100 ° C., to the H 2 O partial pressure of the saturated solution of said salt at the same temperature;
(b) 0.1 to 20 wt. % of at least one fragrance;
(c) from 0.5 to 3 wt. %, based on the total weight of the composition, of an inorganic rheology modifier selected from the group of fumed silicas;
(d) from 0.5 to 3 wt. %, based on the total weight of the composition, of an organic rheology modifier selected from the group of microfibrillated celluloses;
(e) optionally up to 25 wt. % of an emulsifier;
(f) from 1 to 20 wt. %, based on the total weight of the composition, of at least one solid or filler that is different from (c), (d) and (e);
(g) at least one dye; and
(h) 0.1 to 20 wt. % of at least one water-miscible organic solvent

wherein the composition does not contain any polyethylene glycol and wherein the particulate composition is in the form of hemispherical particles wherein at least 80% of the particles have a particle weight of between 2 and 150 mg.

2. The composition according to claim 1 , wherein the water-soluble carrier material:
(A) is selected from hydrous salts of which the water vapor partial pressure, at a temperature in the range from 40 to 90 ° C., corresponds to the H 2 O partial pressure of the saturated solution of this salt; and/or
(B) is contained therein in an amount from 30 to 95 wt. % based on the total weight of the composition.

3. The composition according to claim 1 , wherein the at least one fragrance:
(A) is contained in the composition in an amount from 1 to 20 wt. %; and/or
(B) is used in the form of fragrance capsules and/or perfume oils.

4. The composition according to claim 1 , wherein fumed silica:
(A) is contained in the composition in an amount from 1 to 2.5 wt. %; and/or
(B) has a BET surface area of more than 50 m 2 /g.

5. The composition according to claim 1 , wherein it contains a water-miscible organic solvent from the group dipropylene glycol, 1,2-propylene glycol and glycerol.

6. The composition according to claim 1 , wherein it contains the water-miscible organic solvent, based on its total weight, in amounts from 0.1 to 10 wt.

7. The composition according to claim 1 , wherein it further contains free water.

8. A method for preparing the composition according to claim 1 , comprising:
(a) producing a melt comprising the at least one water-soluble carrier material;
(b) optionally metering in additional optional ingredients;
(c) metering the at least one fragrance, the at least one water-miscible organic solvent and optionally a dye into the melt;
(d) mixing the melt and the at least one fragrance; and
(e) cooling and optionally reshaping the mixture to obtain perfume-containing melt bodies.

9. A washing or cleaning agent comprising a solid composition according to claim 1 .

10. The composition according to claim 1 , wherein it comprises an emulsifier from the group of fatty alcohols, fatty alcohol alkoxylates, fatty amide ethoxylates, fatty alcohol sulfates, fatty alcohol ether sulfates, alkylbenzene sulfonates, allyl polyglycosides, fatty acid sorbitan esters, alkylamine oxides, alkyl betaines or combinations thereof.

11. The composition according to claim 2 , wherein the hydrous salt is sodium acetate trihydrate (Na(CH 3 COO)·3H 2 O).

12. The composition according to claim 5 , wherein the water-miscible organic solvent is dipropylene glycol.

13. The composition according to claim 1 , wherein it contains at least one dye in a concentration from 0.001 to 0.5 wt. % based on the total weight of the composition.

14. The composition according to claim 13 , wherein it contains at least one dye in a concentration from 0.01 to 0.3 wt. % based on the total weight of the composition.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Schmiedel Peter
• Panzica Danilo
• Larson Bernd
• Holderbaum Thomas
• Bellomi Luca
• Nickel Dieter
• Stehr Regina

Classifications

• C11D3/505 Primary

  encapsulated or adsorbed on a carrier, e.g. zeolite or clay · CPC title

• C11D3/046 Primary

  Salts · CPC title

• C11D3/124

  Silicon containing, e.g. silica, silex, quartz or glass beads · CPC title

• C11D3/2065

  Polyhydric alcohols · CPC title

• C11D3/2068

  Ethers · CPC title