Oil gelling agent and cosmetic
US-2024252417-A1 · Aug 1, 2024 · US
Fragrance-containing microparticles
US12427101B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12427101-B2 |
| Application number | US-202118001283-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 23, 2021 |
| Priority date | Jul 23, 2020 |
| Publication date | Sep 30, 2025 |
| Grant date | Sep 30, 2025 |
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Abstract
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A fragrance-containing microparticle of water-insoluble polymeric material, the polymer having a glass transition temperature of from 0° C. to 50° C. and a zeta potential lying within the ranges −40 mV to −5 mV and +5 mV to +45 mV. The microparticles have enhanced substantivity to hair, resulting in a longer-lasting fragrance.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fragrance-containing microparticle of water-insoluble polymeric material selected from 2-methacryloyloxyethylphosphorylcholine homopolymers and copolymers of methyl methacrylate with 2-methacryloyloxyethylphosphorylcholine, the polymer having a glass transition temperature of from 0° C. to 50° C. and a zeta potential within the range −40 mV to −5 mV or +5 mV to +45 mV. 2. The fragrance-containing microparticle according to claim 1 , wherein the glass transition temperature is within the range 20° C. to 40° C. 3. The fragrance-containing microparticle according to claim 1 , wherein the zeta-potential is within the range +30 mV to +45 mV. 4. The fragrance-containing microparticle according to claim 1 , wherein the polymer is a copolymer of methyl methacrylate and 2-methacryloyloxyethylphosphorylcholine, and wherein the methyl methacrylate (MMA) monomer content comprises 20% by weight maximum. 5. The fragrance-containing microparticle according to claim 1 , wherein the glass transition temperature is within the range 20° C. to 30° C. 6. The fragrance-containing microparticle according to claim 1 , wherein the polymer is a copolymer of methyl methacrylate and 2-methacryloyloxyethylphosphorylcholine, and wherein the methyl methacrylate (MMA) monomer content comprises 15% by weight maximum. 7. The fragrance-containing microparticle according to claim 1 , wherein the polymer is a copolymer of methyl methacrylate and 2-methacryloyloxyethylphosphorylcholine, and wherein the methyl methacrylate (MMA) monomer content comprises 10% by weight maximum. 8. The fragrance-containing microparticle according to claim 1 , wherein the polymer is a copolymer of methyl methacrylate and 2-methacryloyloxyethylphosphorylcholine, and wherein the methyl methacrylate (MMA) monomer content comprises 5% by weight maximum. 9. A rinse-off hair care composition comprising the fragrance-containing microparticle of claim 1 . 10. A method of achieving a long-term fragrancing of hair, comprising applying the rinse-off hair care composition according to claim 9 .
Assignees
Inventors
Classifications
Formulations or additives for perfume preparations (essential oils or perfumes per se C11B9/00) · CPC title
Preparations containing hair conditioners · CPC title
Preparations for cleaning the hair · CPC title
Compounds, absorbed onto or entrapped into a solid carrier, e.g. encapsulated perfumes, inclusion compounds, sustained release forms · CPC title
Phosphorus compounds · CPC title
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Frequently asked questions
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- What does patent US12427101B2 cover?
- A fragrance-containing microparticle of water-insoluble polymeric material, the polymer having a glass transition temperature of from 0° C. to 50° C. and a zeta potential lying within the ranges −40 mV to −5 mV and +5 mV to +45 mV. The microparticles have enhanced substantivity to hair, resulting in a longer-lasting fragrance.
- Who is the assignee on this patent?
- Givaudan Sa
- What technology area does this patent fall under?
- Primary CPC classification A61K8/8152. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Sep 30 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).