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    PROCESS FOR DYEING KERATIN MATERIALS USING AT LEAST ONE BLUE, PURPLE OR GREEN DYE AND AT LEAST ONE DISULFIDE, THIOL OR PROTECTED THIOL FLUORESCENT DYE
    3.
    发明申请
    PROCESS FOR DYEING KERATIN MATERIALS USING AT LEAST ONE BLUE, PURPLE OR GREEN DYE AND AT LEAST ONE DISULFIDE, THIOL OR PROTECTED THIOL FLUORESCENT DYE 审中-公开

    公开(公告)号：US20200179255A1

    公开(公告)日：2020-06-11

    申请号：US16622258

    申请日：2018-06-18

    Applicant: L'OREAL

    Inventor： Hervé DAVID ,  Christian BLAISE

    IPC: A61K8/49 ,  A61Q5/10

    Abstract: The present invention relates to a process for dyeing keratin fibers, in particular human keratin fibers such as the hair, using a) one or more blue, violet or green dyes and b) one or more disulfide, thiol or protected-thiol fluorescent dyes.The present invention also relates to a cosmetic composition comprising the dyes defined above, and also to a multi-compartment device containing said dyes.The present invention also relates to the use of said dyes for dyeing light keratin fibers, notably human keratin fibers such as the hair, in chestnut-brown, dark chestnut-brown, brown, brown with a tint, or even black, without using an additional dye other than those defined above.

    FLUORESCENT DIRECT DYE BEARING AN ALIPHATIC CHAIN AND A DISULFIDE/THIOL/PROTECTED-THIOL FUNCTION FOR DYEING KERATIN MATERIALS
    6.
    发明申请
    FLUORESCENT DIRECT DYE BEARING AN ALIPHATIC CHAIN AND A DISULFIDE/THIOL/PROTECTED-THIOL FUNCTION FOR DYEING KERATIN MATERIALS 审中-公开

    公开(公告)号：US20200337973A1

    公开(公告)日：2020-10-29

    申请号：US16611437

    申请日：2018-05-09

    Applicant: L'OREAL

    Inventor： Christian BLAISE ,  Virginie BURCKBUCHLER

    IPC: A61K8/49 ,  A61Q5/06

    Abstract: The invention relates to a process for dyeing and/or lightening keratin materials, in particular keratin fibres, preferably human keratin fibres such as the hair, using at least one fluorescent direct dye bearing a disulfide, thiol or protected-thiol function and comprising at least one aliphatic chain of formula (I). The invention also relates to the use i) of at least one fluorescent direct dye bearing a disulfide, thiol or protected-thiol function (I) combined with ii) steam and/or a heating iron for straightening keratin fibres, for dyeing and lightening keratin materials, and to novel fluorescent direct dyes bearing a disulfide, thiol or protected-thiol function of formula (I), and also a cosmetic composition comprising same.The process used and the use of the thiol, protected-thiol or disulfide fluorescent direct dyes of formula (I) combined with steam makes it possible especially to obtain long-lasting colouring with care valency on keratin materials.

    PROCESS FOR CURL-RELAXING AND/OR STRAIGHTENING KERATIN FIBRES, USING A THIOL-BASED REDUCING AGENT AND A DICARBOXYLIC ACID DERIVATIVE, AND STRAIGHTENING KIT
    8.
    发明申请
    PROCESS FOR CURL-RELAXING AND/OR STRAIGHTENING KERATIN FIBRES, USING A THIOL-BASED REDUCING AGENT AND A DICARBOXYLIC ACID DERIVATIVE, AND STRAIGHTENING KIT 有权

    公开(公告)号：US20210007957A1

    公开(公告)日：2021-01-14

    申请号：US17043000

    申请日：2019-04-08

    Applicant: L'OREAL

    Inventor： Christian BLAISE ,  Henri SAMAIN

    IPC: A61K8/46 ,  A61K8/36 ,  A61Q5/04

    Abstract: Methods and compositions for relaxing and/or straightening keratin fibres are disclosed. The method comprises i) simultaneously or sequentially applying to the keratin fibres a composition (A) and a composition (B); or ii) alternatively, applying to the keratin fibres a composition (D); and iii) heating the keratin fibres with a heating tool after both the composition (A) and the composition (B) are applied to the keratin fibres, or after the composition (D) is applied to the keratin fibres. The composition (A) is acidic and comprises at least one thiol-based reducing agent. The composition (B) comprises at least one compound chosen from compounds of formula (I): RO—C(O)-ALK-C(O)—OR′. The composition (D) is acidic and comprises at least one thiol-based reducing agent and at least one compound chosen from the compounds of formula (I).

    CATIONIC DIRECT DYE COMPRISING AN ALIPHATIC CHAIN AND BEARING A DISULFIDE/THIOL/PROTECTED-THIOL FUNCTION FOR DYEING KERATIN FIBRES
    9.
    发明申请
    CATIONIC DIRECT DYE COMPRISING AN ALIPHATIC CHAIN AND BEARING A DISULFIDE/THIOL/PROTECTED-THIOL FUNCTION FOR DYEING KERATIN FIBRES 审中-公开

    公开(公告)号：US20200261340A1

    公开(公告)日：2020-08-20

    申请号：US15774733

    申请日：2016-11-14

    Applicant: L'OREAL

    Inventor： Christian BLAISE ,  Virginie BURCKBUCHLER

    IPC: A61K8/49 ,  A61Q5/06

    Abstract: A subject of the invention is a process for dyeing keratin fibres such as the hair, using at least one cationic direct dye bearing a disulfide, thiol or protected-thiol function and comprising at least one ammonium group bearing an aliphatic chain (I). Another subject of the invention is the use i) of at least one cationic direct dye bearing a disulfide, thiol or protected-thiol function (I) combined with ii) steam and/or a heating iron for straightening keratin fibres, for dyeing keratin fibres, and novel cationic direct dyes bearing a disulfide, thiol or protected-thiol function (I), and also a cosmetic composition comprising same. The process used and the use of the thiol, protected-thiol or disulfide dyes combined with steam makes it possible in particular to obtain a long-lasting colouration with a care valency on the keratin fibres.

    PROCESS FOR TREATING KERATIN FIBRES WITH A CATIONIC DISULFIDE COMPOUND
    10.
    发明申请
    PROCESS FOR TREATING KERATIN FIBRES WITH A CATIONIC DISULFIDE COMPOUND 审中-公开

    公开(公告)号：US20190225578A1

    公开(公告)日：2019-07-25

    申请号：US15774734

    申请日：2016-11-10

    Applicant: L'OREAL

    Inventor： Christian BLAISE ,  Virginie BURCKBUCHLER

    IPC: C07C323/41 ,  A61K8/46 ,  A61Q5/06 ,  A61Q5/04 ,  A61Q5/02 ,  A61Q5/12

    Abstract: The invention relates to a process for treating keratin fibres, in particular human keratin fibres such as the hair, comprising: (i) a step of applying a compound (I) and also the acid or base salts thereof, the optical or geometrical isomers thereof, and the solvates thereof such as hydrates, in which compound of formula (I): R1, R2, R3, R4, x, m, n, X−, are as defined in the description; (ii) a step of heating the keratin fibres to a temperature of at least 100° C., preferably ranging from 100 to 250° C.; it is understood that steps (i) and (ii) may be performed at the same time or separately. The process makes it possible to obtain good hair-conditioning cosmetic properties, with a long-lasting effect.The invention also relates to the novel compounds and to a cosmetic composition comprising such a compound.

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