公开(公告)号：US20180244924A1

公开(公告)日：2018-08-30

申请号：US15557594

申请日：2016-03-18

Applicant: BASF SE

Inventor： Frank Bachmann ,  Christian Cremer ,  Beate Froehling ,  Bryan Patrick Murphy ,  Guiru Zhang ,  Peter Marte Torgerson

IPC: C09B44/16 ,  C09B44/12 ,  C09B44/20 ,  C09B44/08 ,  A61Q5/06 ,  A61K8/49

CPC classification number: C09B44/16 ,  A61K8/49 ,  A61K8/4926 ,  A61K8/4946 ,  A61K2800/4322 ,  A61K2800/4324 ,  A61Q5/065 ,  A61Q5/10 ,  C09B23/105 ,  C09B29/0037 ,  C09B29/0808 ,  C09B29/081 ,  C09B29/0814 ,  C09B44/08 ,  C09B44/126 ,  C09B44/20 ,  C09B55/003 ,  C09B56/12 ,  C09B69/065

Abstract: The invention relates to cationic direct dyes of the formula I (1), wherein m and n are independently from each other 0 or 1, D is an aromatic or a cationic heteroaromatic group, which are further specified, K is an aromatic or heteroaromatic group, E1 and E2 are independently from each other ═CH— or ═N—, An is an anion and a is a number from 1 to 6 and R1 and R2 are independently from each other and further specified. The compounds show washfastness at hair-dying.