Use of calcined kaolin as a mattifying agent

US12544319B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12544319-B2
Application numberUS-201816754890-A
CountryUS
Kind codeB2
Filing dateOct 9, 2018
Priority dateOct 10, 2017
Publication dateFeb 10, 2026
Grant dateFeb 10, 2026

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A cosmetic composition comprising a cosmetically acceptable carrier and at least 2.5% by weight of calcined kaolin relative to the total weight of the composition, a cosmetic method for reducing the gloss of the skin, and the use of calcined kaolin as a mattifying agent in a cosmetic composition.

First claim

Opening claim text (preview).

The invention claimed is: 1 . A method for reducing skin gloss consisting of applying to a skin surface a composition having a cosmetically acceptable carrier and an effective amount of flash calcined kaolin, the effective amount being at least 2.5% by weight of flash calcined kaolin relative to a total weight of the composition having the cosmetically acceptable carrier; wherein the flash calcined kaolin has: a specific surface area (BET) between 8 and 14 m 2 /g, a sebum absorption of at least 60 mL/100 g of flash calcined kaolin, a water absorption of at least about 60 mL/100 g, and a mean particle size as determined by sedimentation (d 50 ) ranging from about 0.1 μm to about 4.0 μm. 2 . The method of claim 1 , wherein the composition does not comprise any oil-derived mattifying agent. 3 . The method of claim 1 , wherein the composition comprises less than 0.5 wt % of a mattifying agent different from the flash calcined kaolin. 4 . The method of claim 1 , wherein the effective amount of flash calcined kaolin is applied to the skin surface and improves skin matte.

Assignees

Inventors

Classifications

  • Clays · CPC title

  • Preparations containing skin colorants, e.g. pigments (preparations in powder form A61Q1/12) · CPC title

  • Powders; Compacted Powders · CPC title

  • Optical properties · CPC title

  • Corresponding aspects not provided for by any of codes A61K2800/81 - A61K2800/95 · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12544319B2 cover?
A cosmetic composition comprising a cosmetically acceptable carrier and at least 2.5% by weight of calcined kaolin relative to the total weight of the composition, a cosmetic method for reducing the gloss of the skin, and the use of calcined kaolin as a mattifying agent in a cosmetic composition.
Who is the assignee on this patent?
Imertech Sas
What technology area does this patent fall under?
Primary CPC classification A61K8/26. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Feb 10 2026 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).