Solid perfume-containing composition

Patent metadata

Field	Value
Publication number	US-11732224-B2
Application number	US-202016858482-A
Country	US
Kind code	B2
Filing date	Apr 24, 2020
Priority date	Oct 24, 2017
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A solid, particulate composition having at least one water-soluble carrier material, at least one fragrance and at least one rheology modifier, 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 water-containing 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) 0.1 to 25 wt. %, based on the total weight of the composition, of at least one-rheology modifier of such a type and in such an amount that a melt obtained by heating the composition to 70° C. has a yield point above 1 Pa;
(d) optionally up to 25 wt. % of an emulsifier;
(e) optionally up to 25 wt. %, based on the total weight of the composition, of at least one solid or filler that is different from (c) and (d);
(f) optionally at least one dye.

2. The composition according to claim 1 , wherein the water-soluble carrier material
(A) is selected from water-containing salts of which the water vapor partial pressure corresponds, at a temperature in the range from 40 to 90° C. to the H 2 O partial pressure of the saturated solution of said salt; and/or
(B) is contained in the composition in an amount from 30 to 95 wt %, based on the total weight of said 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 it comprises, based on its total weight, 1 to 25 wt. %,
of an inorganic rheology modifier and/or
of an organic rheology modifier.

5. The composition according to claim 4 wherein it comprises an inorganic rheology modifier from the group of pyrogenic silicic acids and/or an organic rheology modifier from the group of celluloses.

6. The composition according to claim 4 wherein it comprises microfibrillated celluloses.

7. The composition according to claim 1 , wherein pyrogenic silicic acid
(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.

8. The composition according to claim 1 , wherein it further contains at least one dye.

9. The composition according to claim 8 , wherein it further contains at least one dye in a concentration from 0.001 to 0.5 wt. % based on the total weight of the composition.

10. The composition according to claim 8 , wherein it further contains at least one dye in a concentration from 0.01 to 0.3 wt. % based on the total weight of the composition.

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

12. The composition according to claim 1 , wherein it comprises a solid rheology modifier.

13. 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.

14. The composition according to claim 1 , wherein the water-containing salt is sodium acetate trihydrate (Na(CH 3 COO).3H 2 O).

15. 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 perfume, at least one rheology modifier and optionally a dye into the melt;
(d) mixing the melt and the at least one fragrance; and
(e) cooling and optionally shaping the mixture to obtain perfume-containing melt bodies.

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

Assignees

• Henkel Ag & Co Kgaa

Inventors

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

Classifications

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• C11D2111/14

  Hard surfaces · CPC title

• C11D17/06 Primary

  Powder; Flakes; Free-flowing mixtures; Sheets · CPC title

• C11D3/08

  Silicates · CPC title

• C11D3/202

  fatty or with at least 8 carbon atoms in the alkyl chain · CPC title