公开(公告)号：US12122919B2

公开(公告)日：2024-10-22

申请号：US17427403

申请日：2020-01-17

Applicant: BASF SE

Inventor： Leonhard Feiler ,  Thomas Ruch ,  Frank Bachmann ,  Marie-Pascale Perritaz ,  Gerardus De Keyzer

IPC: C09B31/053 ,  C09B31/043 ,  C09B31/26 ,  C09B31/30 ,  C09K19/60

CPC classification number: C09B31/053 ,  C09B31/043 ,  C09B31/26 ,  C09B31/30 ,  C09K19/601

Abstract: Azo-azomethine dyes, a dichroic dye mixture including azo-azomethine dyes, a liquid crystal composition with the azo-azomethine dyes, and methods for producing the dyes and dye compositions. The dyes can be used in liquid crystal systems, transmissive displays, and smart windows.

公开(公告)号：US11344489B2

公开(公告)日：2022-05-31

申请号：US17294715

申请日：2019-11-21

Applicant: BASF SE

Inventor： Frank Bachmann ,  Beate Froehling ,  Christian Cremer ,  Marie-Pascale Perritaz ,  Volker Wendel

IPC: A61Q5/10 ,  A61K8/49 ,  A61K8/365 ,  A61K8/41 ,  A61Q5/06

Abstract: A composition for dyeing keratin fibres comprising a. at least one azomethine compound selected from compounds (3) and (4) and b. water. The composition may be used in a process for dyeing keratin fibres or, with simultaneous or sequential application of a composition comprising one or more oxidising agents, in a process for lightening keratin fibres.

公开(公告)号：US20220016007A1

公开(公告)日：2022-01-20

申请号：US17294715

申请日：2019-11-21

Applicant: BASF SE

Inventor： Frank Bachmann ,  Beate Froehling ,  Christian Cremer ,  Marie-Pascale Perritaz ,  Volker Wendel

IPC: A61K8/49 ,  A61Q5/06 ,  A61K8/365 ,  A61K8/41

Abstract: A composition for dyeing keratin fibres comprising a. at least one azomethine compound selected from compounds (3) and (4) and b. water. The composition may be used in a process for dyeing keratin fibres or, with simultaneous or sequential application of a composition comprising one or more oxidising agents, in a process for lightening keratin fibres.