Method for producing multiphase washing or cleaning agent shaped bodies

Patent metadata

Field	Value
Publication number	US-11920106-B2
Application number	US-202117347107-A
Country	US
Kind code	B2
Filing date	Jun 14, 2021
Priority date	Dec 13, 2018
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A method for producing a multiphase washing or cleaning agent shaped body, including the steps of: a) providing a first free-flowing washing or cleaning agent; b) providing a second washing or cleaning agent; c) feeding the first and second washing or cleaning agent to an injector; d) introducing the first free-flowing washing or cleaning agent and the second free-flowing washing or cleaning agent into a mold by way of the injector; e) solidifying at least one of the free-flowing first and second washing or cleaning agents in the mold, forming a multiphase washing or cleaning agent shaped body; f) removing the multiphase washing or cleaning agent shaped body from the mold, wherein the first and second free-flowing washing or cleaning agent are introduced into the mold through outlet openings in the injector, which are separated. The invention also relates to multiphase shaped bodies produced by way of this method.

First claim

What is claimed is:

1. A method for producing a multiphase washing or cleaning agent shaped body, comprising the steps of:
a) providing a first free-flowing washing or cleaning agent comprising at least 5-40 wt. % organic solvent and 20-90 wt. % surfactant;
b) providing a second free-flowing washing or cleaning agent, which is different from the first washing or cleaning agent, and comprises at least 30-95 wt. % organic solvent and a polymer film former;
c) feeding the first and second free-flowing washing or cleaning agents into an injector having one or more inner tubes and one or more outer tubes concentrically surrounding the one or more inner tubes;
d) introducing the first free-flowing washing or cleaning agent into a mold through the one or more inner tubes and introducing the second free-flowing washing or cleaning agent into the mold through the one or more outer tubes;
e) solidifying at least one of the first and second free-flowing washing or cleaning agents in the mold, thus forming a multiphase washing or cleaning agent shaped body; and
f) removing the multiphase washing or cleaning agent shaped body from the mold.

2. The method according to claim 1 , wherein at least one further component is mixed with at least one of the first and second free-flowing washing or cleaning agents while said agents are feeding to the injector in step c).

3. The method according to claim 1 , wherein, at the time of introduction into the mold in step d), the first and second free-flowing washing or cleaning agents have a temperature above 25° C.

4. The method according to claim 3 , wherein the first and second free-flowing washing or cleaning agents have a temperature above 30° C.

5. The method according to claim 3 , wherein the first and second free-flowing washing or cleaning agents have a temperature between 30° C. and 80° C.

6. The method according to claim 1 , wherein, at the time of introduction into the mold in step d), the first and second free-flowing washing or cleaning agents have a temperature difference between the first and second free-flowing washing or cleaning agents of between 0° C. and 50° C.

7. The method according to claim 6 , wherein the temperature difference between the first and second free-flowing washing or cleaning agents is between 0° C. and 45° C.

8. The method according to claim 6 , wherein the temperature difference between the first and second free-flowing washing or cleaning agents of between 0° C. and 20° C.

9. The method according to claim 1 , wherein the first free-flowing washing or cleaning agent introduced into the mold through the inner tube in step d) has a lower temperature than the second free-flowing washing or cleaning agent introduced into the mold through the outer tube.

10. The method according to claim 1 , wherein the second free-flowing washing or cleaning agent introduced into the mold through the outer tube in step d) has a higher specific heat capacity than the first free-flowing washing or cleaning agent introduced into the mold through the inner tube.

11. The method according to claim 1 , wherein the first and second free-flowing washing or cleaning agents are cooled in step e).

12. The method according to claim 1 , wherein, at the time of introduction into the mold in step d), the first and second free-flowing washing or cleaning agents each have a density from 0.8 to 1.6 g/cm 3 .

13. The method according to claim 12 , wherein the first and second free-flowing washing or cleaning agents have a density from 0.9 to 1.5 g/cm 3 .

14. The method according to claim 12 , wherein the first and second free-flowing washing or cleaning agents have a density from 1.0 to 1.4 g/cm 3 .

15. The method according to claim 1 , wherein the first free-flowing washing or cleaning agent comprises at least 10-35 wt. % organic solvent and at least 40-85 wt. % surfactant, and the second free-flowing washing or cleaning agent comprises at least 40-90 wt. % organic solvent and at least 15-30 wt. % polymer film former.

16. The method according to claim 1 , wherein the organic solvent is selected from the group of glycerol, propanediol, and propylene glycol.

17. The method according to claim 1 , wherein the surfactant is selected from an anionic and nonionic surfactant.

18. The method according to claim 1 , wherein the second free-flowing washing or cleaning agent forms a shell around the first free-flowing washing or cleaning agent to form the multiphase washing or cleaning agent shaped body.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Trinchera Maria
• Sunder Matthias
• Gerhards Katja
• Ristau Steffen
• Aztout Mohamed
• Diel Vera

Classifications

• C11D11/0082 Primary

  one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads · CPC title

• C11D17/042

  Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions · CPC title

• C11D17/0078 Primary

  Multilayered tablets · CPC title

• C11D11/00

  Special methods for preparing compositions containing mixtures of detergents · CPC title

• C11D17/00

  Detergent materials or soaps characterised by their shape or physical properties (shaping soap C11D13/14) · CPC title