IP Library › Granted Patent US 12,419,816
Granted Patent B2
US 12,419,816 · App. 17/433,039 · Granted Sep 23, 2025

Particulate amorphous mesoporous magnesium carbonate material

Inventors: Cecilia Århammar (Uppsala, SE); Gabriella Josefsson (Spånga, SE)
Assignee: Disruptive Materials Operations AB
A61K8/19A61K8/0279A61Q19/008C01F5/24A61K2800/412A61K2800/651C01P2002/72C01P2004/03C01P2004/51C01P2004/61C01P2006/12C01P2006/14C01P2006/19
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Quick Facts
Patent No.
US 12,419,816
App. No.
17/433,039
Granted
Sep 23, 2025
Kind
B2
Abstract

The present invention relates to a particulate highly porous amorphous mesoporous magnesium carbonate material suitable for uptake of high amounts of oily substances, sebum or a beneficial agent or combinations of these and to topical and cosmetic compositions comprising such material. The particulate highly porous amorphous mesoporous magnesium carbonate material according to the invention has a total pore volume larger than 0.1 cm 3/g and is constituted of particles having a peak particle size at or below 35 μm.

Claims (25)

1. A particulate amorphous mesoporous magnesium carbonate material suitable for taking up oily substances, wherein the particulate amorphous mesoporous magnesium carbonate material has a total pore volume larger than 0.1 cm 3 /g, a specific surface area larger than 100 m 2 /g and is constituted of particles having a peak particle size between 1 and 20 μm.

2. The particulate amorphous mesoporous magnesium carbonate material according to claim 1 , wherein the total pore volume of the particulate amorphous mesoporous magnesium carbonate material is larger than 0.2 cm 3 /g.

3. The particulate amorphous mesoporous magnesium carbonate material according to claim 1 , wherein the D90 value is below 96 μm.

4. The particulate amorphous mesoporous magnesium carbonate material according to claim 1 , wherein the particulate amorphous mesoporous magnesium carbonate material is capable of an uptake of an oily substance above 0.5 g oil/g particulate amorphous mesoporous magnesium carbonate material, when the particulate amorphous mesoporous magnesium material contains at least 5 wt % moisture.

5. The particulate amorphous mesoporous magnesium carbonate material according to claim 1 , wherein the particulate amorphous mesoporous magnesium carbonate material is loaded with an agent.

6. The particulate amorphous mesoporous magnesium carbonate material according to claim 5 , wherein the agent is an oily substance.

7. The particulate amorphous mesoporous magnesium carbonate material according to claim 5 , wherein the agent is a beneficial agent.

8. The particulate amorphous mesoporous magnesium carbonate material according to claim 5 , wherein the agent is an active substance.

9. The particulate amorphous mesoporous magnesium carbonate material according to claim 8 , wherein the active substance is an active pharmaceutical agent.

10. A topical composition comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 .

11. A cosmetic composition comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 .

12. A loose powder product comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 mixed with an oily substance at a concentration up to 0.75 g oil/g particulate amorphous mesoporous magnesium carbonate material.

13. A powder spray product comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 mixed with an oily substance at a concentration up to 0.75 g oil/g particulate amorphous mesoporous magnesium carbonate material.

14. A pressed powder product comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 mixed with an oily substance at a concentration up to 1.0 g oil/g particulate amorphous mesoporous magnesium carbonate material.

15. A semi-solid product comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 mixed with an oily substance at a concentration up to 1.25 g oil/g particulate amorphous mesoporous magnesium carbonate material.

16. A liquid product comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 mixed with an oily substance at a concentration up to 1.25 g oil/g particulate amorphous mesoporous magnesium carbonate material.

17. A mattifying agent in an oily composition comprising the particulate amorphous mesoporous magnesium carbonate material according to claim 1 .

18. A method of producing a particulate amorphous mesoporous magnesium carbonate material according to claim 1 comprising the steps of:

providing an amorphous mesoporous magnesium carbonate material with a total pore volume larger than 0.1 cm 3 /g, a specific surface area between 100 and 800 m 2 /g; and

fractionizing the amorphous mesoporous magnesium carbonate material to form a particulate amorphous mesoporous magnesium carbonate material wherein the particle distribution has a peak particle size between 1 and 20 μm.

19. The method of producing a particulate amorphous mesoporous magnesium carbonate material according to claim 18 , wherein the step of fractionizing comprises milling the amorphous mesoporous magnesium carbonate material.

20. The particulate amorphous mesoporous magnesium carbonate material according to claim 3 , wherein the total pore volume of the particulate amorphous mesoporous magnesium carbonate material is larger than 0.3 cm 3 /g.

21. A particulate amorphous mesoporous magnesium carbonate material suitable for taking up oily substances, wherein the particulate amorphous mesoporous magnesium carbonate material and is constituted of particles having a peak particle size between 1 and 20 μm,

wherein the particulate amorphous mesoporous magnesium carbonate material has a total pore volume 0.46 to 0.60 cm 3 /g and a specific surface area larger than 258 to 621 m 2 /g, and

wherein the particulate amorphous mesoporous magnesium carbonate material has an uptake of an oily substance of 1.14 to 1.28 g oil/g particulate amorphous mesoporous magnesium carbonate material.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2021
From: ÅRHAMMAR, CECILIA; JOSEFSSON, GABRIELLA
To: DISRUPTIVE MATERIALS OPERATIONS AB
Reel/Frame 057510/0681 →
Priority Claims (1)
SE 1950239-2 · Feb 25, 2019 · national
Continuity (1)
Related Publication 20220160594A1 · May 26, 2022
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