MULTISTABLE PHOTOCHROMIC PIGMENTS FOR INTRADERMAL USE

    公开(公告)号:WO2022212691A1

    公开(公告)日:2022-10-06

    申请号:PCT/US2022/022802

    申请日:2022-03-31

    摘要: Biocompatible, bistable or multistable (P-Type) photochromic nanoparticles or microparticles that can be embedded in the skin using techniques such as those used to create a tattoo with tattoo ink. The color of the "tattoo" using the biocompatible bistable or multistable photochromic microparticles can be written, erased or changed, and re-written locally in the skin by irradiation with light of appropriate wavelengths. Some formulations with much higher sensitivity to UV light than visible light can also be used as short-term intradermal colorimetric UV dosimeters that can be reset and re-used on an hourly or daily basis. These particles can be uniform aggregates or polymers containing P-type photochromic dyes, microencapsulated or core-shell structures with cores containing P-type photochromic dyes, or solid particulate materials with P-type photochromic dyes adsorbed on the surface or within their pores.

    SURFACTANT COMPOSITIONS
    8.
    发明申请

    公开(公告)号:WO2022175664A1

    公开(公告)日:2022-08-25

    申请号:PCT/GB2022/050425

    申请日:2022-02-17

    申请人: LANKEM LTD.

    摘要: A mild surfactant composition for use in personal care and/or detergent compositions. The composition comprises a surfactant which is mild and/or non-irritating to skin. The mild surfactant is the reaction product of (a) an epoxidised carboxylic acid ester; and (b) a compound including at least one reactive alcohol and/or amino functional group. The components (a) and (b) are suitably obtained from renewable sources. A use of such surfactants in mild surfactant compositions is also provided.