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KR-20260068100-A - Composition comprising a biopolymer-based aerogel

KR20260068100AKR 20260068100 AKR20260068100 AKR 20260068100AKR-20260068100-A

Abstract

The present invention relates to a composition in the form of an organogel, emulsion, or biogel comprising at least one non-aqueous liquid or paste phase and an aerogel powder added to at least one non-aqueous phase based on at least one diionic biopolymer, wherein the viscosity of the composition is greater than the viscosity of at least one non-aqueous phase, the aerogel powder has a density of 30 g/l or less, and the particle size of the aerogel powder is in the range of 0.5 to 250 micrometers. The present invention also relates to a method for preparing a composition comprising mixing a non-aqueous component comprising at least one non-aqueous liquid or paste component and at least one aerogel powder based on at least one diionic biopolymer, wherein the viscosity of the composition is greater than the viscosity of at least one non-aqueous phase, the aerogel powder has a density of 30 g/l or less, and the particle size is in the range of 0.5 to 250 micrometers. Additionally, the present invention relates to the use of a composition according to the present invention or a composition that is or can be obtained by a method according to the present invention for the food, cosmetic, biomedical, agricultural, consumer, construction, adhesive, coating, paint, fragrance release, or pharmaceutical fields.

Inventors

  • 프리케 마르크
  • 수브라만얌 라만
  • 웨인리히 디르크

Assignees

  • 에어로젤-잇 게엠베하

Dates

Publication Date
20260513
Application Date
20240906
Priority Date
20230908

Claims (15)

  1. (i) at least one non-aqueous liquid phase or paste phase, (ii) Aerogel powder based on at least one type of diionic biopolymer A composition in the form of an organogel, emulsion, or bigel comprising, wherein the viscosity of the composition is greater than the viscosity of at least one non-aqueous phase, the aerogel powder has a density of 30 g/l or less, and the particle size of the aerogel powder is in the range of 0.5 to 250 micrometers.
  2. The aerogel according to claim 1 is a composition based on at least one diionic biopolymer gelled in water with at least one trivalent or tetravalent metal cation.
  3. In paragraph 2, the trivalent or tetravalent cation is a composition selected from the group consisting of aluminum, iron, zirconium, tin, lead, manganese, molybdenum, tungsten, silicon, and titanium.
  4. A composition according to any one of claims 1 to 3, wherein the diionic biopolymer is a diionic biopolymer selected from the group consisting of the following ionic biopolymers, preferably alginate, pectin, modified cellulose, xanthan, carrageenan, and hyaluronic acid.
  5. A composition according to any one of claims 1 to 4, wherein the aerogel particles comprise a secondary material (SM) selected from the group consisting of lignin, tannin, polysaccharide, protein, synthetic polymer including block copolymer, structured polymer, block copolymer or semicrystalline polymer, pigment, opacifier, soft focus filler, spherical or layered inorganic or organic powder, perlite, UV blocker or inorganic precursor.
  6. In any one of paragraphs 1 to 5, the aerogel (A) 20-80 mass% of secondary material (SM), and 20% of ionic crosslinkable polycarboxylate polymer, but at least 25 kg/ m³ of Ionic crosslinkable polycarboxylate polymer, or (B) 20-90 mass% of secondary material (SM), and 10 mass% of alginate, but at least 15 kg/ m³ of alginate, or (C) 20-85 mass% of secondary material (SM), and 15 mass% of pectin, but at least 20 kg/ m³ of pectin, or (D) 20-80 mass% of secondary material (SM), and 20 mass% of CMC, but at least 25 kg/ m³ of CMC, or (E) ionic crosslinkable polycarboxylate polymer comprising 20-85 masses of secondary material (SM), and 7.5 mass% of alginate, but at least 15 kg/ m³ of alginate and at least 10 kg/ m³ of non-alginate. A composition that is a hybrid aerogel comprising
  7. A composition according to any one of claims 1 to 6, wherein the non-aqueous phase comprises one or more of the following: an ester of a saturated or unsaturated, linear or branched C1-C26 aliphatic monoacid or polyacid, and an ester of a saturated or unsaturated, linear or branched C1-C26 aliphatic monoalcohol or polyalcohol, or silicone, or silicone oil or fluorosilicone oil, a non-aqueous fragrance, a fragrance, a nutrient, a preservative, a pH adjuster, a film-forming agent, a dextran ester, a sucrose ester, a humectant, a synthetic polymer including a block copolymer or a semicrystalline polymer, a structured polymer, a UV blocker, a silicone elastomer, a pigment, a mixed pigment or pigment complex, an opacifier, a blurring filler, a soft-focus filler, a spherical or layered inorganic or organic powder, perlite, and a UV blocker.
  8. A composition according to any one of claims 1 to 7, wherein the aerogel powder in the composition is present in an amount of aerogel particle bulk density as a lower limit to aerogel bead density as an upper limit with respect to the density of the non-aqueous phase containing the aerogel powder.
  9. A composition according to any one of claims 1 to 8, wherein the composition is a cosmetic composition, preferably a skin makeup, sunscreen, lipstick, makeup remover, or skin moisturizer composition.
  10. (A) A step of mixing a non-aqueous component comprising at least one non-aqueous liquid or paste component, and at least one aerogel powder based on at least one diionic biopolymer. A method for preparing a composition comprising: the aerogel powder having a density of 30 g/l or less and a particle size in the range of 0.5 to 250 micrometers; the composition being an organogel, emulsion, or vigel; and the viscosity of the composition being greater than the viscosity of at least one non-aqueous phase.
  11. In claim 10, the aerogel powder is obtained by a method of manufacturing in which aerogel beads having a particle diameter in the range of 0.1 to 4 mm are crushed.
  12. A method of manufacturing according to claim 10 or 11, wherein the bulk density of the aerogel powder is 5% or more lower than the bulk density of the aerogel beads.
  13. A method of manufacturing aerogel powder that increases the viscosity of at least one non-aqueous phase by at least 100% in any one of claims 10 to 12.
  14. A manufacturing method according to any one of claims 10 to 13, wherein the aerogel is optionally treated at least 130°C for at least 2 hours to improve grindability.
  15. Use of a composition according to any one of claims 1 to 9 or a composition that is or can be obtained by a manufacturing method according to any one of claims 10 to 14, for the food, cosmetic, biomedical, agricultural, consumer, construction, adhesive, coating, paint, fragrance release, or pharmaceutical fields.

Description

Composition comprising a biopolymer-based aerogel The present invention relates to a composition in the form of an organogel, emulsion, or biogel comprising at least one non-aqueous liquid or paste phase and an aerogel powder added to at least one non-aqueous phase based on at least one diionic biopolymer, wherein the viscosity of the composition is greater than the viscosity of at least one non-aqueous phase, the aerogel powder has a density of 30 g/l or less, and the particle size of the aerogel powder is in the range of 0.5 to 250 micrometers. The present invention also relates to a method for preparing a composition comprising mixing a non-aqueous component comprising at least one non-aqueous component and at least one aerogel powder based on at least one diionic biopolymer, wherein the viscosity of the composition is greater than the viscosity of at least one non-aqueous phase, and the aerogel powder has a density of 30 g/l or less and a particle size in the range of 0.5 to 250 micrometers. Additionally, the present invention relates to the use of a composition according to the present invention or a composition that is or can be obtained by a method according to the present invention for the food, cosmetic, biomedical, agricultural, consumer, construction, adhesive, coating, paint, fragrance release, or pharmaceutical fields. Conventionally, developers of cosmetic formulations use emulsion systems that combine an aqueous phase for freshness and an oil phase for comfort. The strength of these systems is that they allow for the combination of cosmetic ingredients or active substances with different affinities for the two phases—aqueous and oil—within the same composition. Unfortunately, when other additives are added to a given emulsion system, it often becomes necessary to adjust the composition. To avoid this problem, compounds that induce gelation, such as aerogels, are used in cosmetic compositions. Additionally, the use of structured polymers or cellulose is described in the prior art. For example, WO 2012/084780A2 discloses a cosmetic composition comprising a mixture of hydrophobic silica aerogel particles and linear silicone oil. Particularly in the field of personal care, using natural products as additives can be desirable for various purposes. In principle, biopolymer-based aerogels are known. Additionally, oleogels based on various bioaerogels, such as proteins, are known in principle and are described in the literature ("Aerogels as porous structures for food applications: Smart ingredients and novel packaging materials", Lara Manzocco et al in Food Structure, vol 28, 2021, 100188 or "Iron(iii)-cross-linked alginate hydrogels: a critical review", Daniel Massana Roquero et al. Mater. Adv. , 2022, 3, 1849-1873). Furthermore, PCT/EP2023/055870 discloses bio-based polymers and aerogels based on diionic biopolymers. Surprisingly, it has been found that the composition according to the present invention can be prepared using only a small amount of aerogel. The aerogel powder used has a low density and, at the same time, a high absorption rate for non-aqueous liquids. Depending on the composition, the aerogel powder can form a gel containing an additional aqueous phase, a non-aqueous phase, or both. Preferably, the powder forms a gel together with a non-aqueous phase. The composition according to the present invention has also been proven to be very stable. The composition according to the present invention is preferably an oleogel, an emulsion, or a vigel, and more preferably an oleogel. An oleogel can be described as a system that alters the physical properties of an oil through process technology without chemical modification. A vigel is generally produced by mixing a hydrogel and an organogel. The absorption capacity (Wp) measured at the wetting point corresponds to the amount of oil that must be added to 100 g of particles to obtain a uniform paste. This is measured according to the wetting point method or the method for measuring the oil absorption of powders described in standard NF T 30-022. This corresponds to the amount of oil adsorbed on the available surface of the powder and/or absorbed by the powder through the wetting point measurement described below. Place an amount of powder m=2 g on a glass plate, and then add oil (e.g., isononyl isononanoate) dropwise. After adding 4 to 5 drops of oil to the powder, mix using a spatula, and continue adding oil until lumps of oil and powder are formed. From this point, add oil drop by drop, and then grind the mixture with a spatula. Stop adding oil when a hard and smooth paste is obtained. This paste should be spreadable on the glass plate without cracking or forming lumps. Then, record the volume of oil used Vs (indicated in ml). The amount of oil absorbed corresponds to the Vs/m ratio. Preferably, the aerogel has an absorption capacity of more than 20 ml/g at the wetting point for the non-aqueous phase of the composition to be formed. Viscosity