Suncare compositions
    1.
    发明授权

    公开(公告)号:US11058613B2

    公开(公告)日:2021-07-13

    申请号:US16634320

    申请日:2018-06-28

    摘要: A suncare formulation comprising: a dermatologically acceptable organic carrier; a UV radiation absorbing agent; and an SPF booster; wherein the SPF booster comprises a multistage polymeric particle having a core comprising polymerized units of a monoethylenically unsaturated carboxylic acid core monomer and a non-ionic ethylenically unsaturated core monomer; an inner shell comprising polymerized units of a non-ionic ethylenically unsaturated inner shell monomer; a monoethylenically unsaturated carboxylic acid inner shell monomer and an aliphatic inner shell monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; an aliphatic outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer and an ethylenically unsaturated surfactant outer shell monomer; wherein the core, when dry, contains a void; wherein the multistage polymeric particle has an average particle size, when dry, of 50 to 1,000 nm.

    SPF booster for use in alcohol base sunscreen formulations

    公开(公告)号:US11185477B2

    公开(公告)日:2021-11-30

    申请号:US16634635

    申请日:2018-06-28

    摘要: An SPF booster is provided, comprising: a multistage polymeric particle having a core comprising polymerized units of a monoethylenically unsaturated carboxylic acid core monomer and a non-ionic ethylenically unsaturated core monomer; an inner shell comprising polymerized units of a non-ionic ethylenically unsaturated inner shell monomer; a monoethylenically unsaturated carboxylic acid inner shell monomer and an aliphatic inner shell monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; an aliphatic outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer and an ethylenically unsaturated surfactant outer shell monomer; wherein the core, when dry, contains a void; and wherein the multistage polymeric particle has an average particle size, when dry, of 50 to 1,000 nm.

    SUNCARE COMPOSITIONS
    4.
    发明申请

    公开(公告)号:US20200268619A1

    公开(公告)日:2020-08-27

    申请号:US16634320

    申请日:2018-06-28

    摘要: A suncare formulation comprising: a dermatologically acceptable organic carrier; a UV radiation absorbing agent; and an SPF booster; wherein the SPF booster comprises a multistage polymeric particle having a core comprising polymerized units of a monoethylenically unsaturated carboxylic acid core monomer and a non-ionic ethylenically unsaturated core monomer; an inner shell comprising polymerized units of a non-ionic ethylenically unsaturated inner shell monomer; a monoethylenically unsaturated carboxylic acid inner shell monomer and an aliphatic inner shell monomer; an outer shell comprising polymerized units of a non-ionic ethylenically unsaturated outer shell monomer; an aliphatic outer shell monomer; a monoethylenically unsaturated non-carboxylic acid outer shell monomer and an ethylenically unsaturated surfactant outer shell monomer; wherein the core, when dry, contains a void; wherein the multistage polymeric particle has an average particle size, when dry, of 50 to 1,000 nm.

    PROCESS FOR ENCAPSULATING A HYDROPHOBIC ACTIVE
    5.
    发明申请
    PROCESS FOR ENCAPSULATING A HYDROPHOBIC ACTIVE 审中-公开
    渗透活性物质的方法

    公开(公告)号:US20140271751A1

    公开(公告)日:2014-09-18

    申请号:US14351204

    申请日:2012-10-16

    IPC分类号: A61K8/11 A61Q17/04

    摘要: Described are processes for encapsulating a hydrophobic active in a core-shell mesocapsule comprising preparing a high internal phase ratio emulsion having a continuous aqueous phase and a dispersed oil phase comprising at least one hydrophobic active and one or more pre-polymers, reducing the volume fraction of the high internal phase ratio emulsion below 0.74 with an aqueous phase stream, and then forming a dispersion of core-shell mesocapsules containing hydrophobic active by either: i) allowing the reduced volume fraction emulsion to sit for 12 hours when the pre-polymer is isocyanate, or ii) contacting the reduced volume fraction emulsion with a third aqueous stream comprising a cross-linking agent.

    摘要翻译: 描述了将疏水活性物质包封在核 - 壳中间膜中的方法,包括制备具有连续水相的高内相比乳液和包含至少一种疏水活性物质和一种或多种预聚物的分散油相,减少体积分数 的高内相比乳液用水相物流低于0.74,然后通过以下方式形成含有疏水性活性物质的核 - 壳中间体的分散体:i)当预聚物是前体聚合物时,允许体积分数小的乳液静置12小时 异氰酸酯,或ii)使体积分数比例的乳液与包含交联剂的第三含水流接触。