公开(公告)号：US20230097455A1

公开(公告)日：2023-03-30

申请号：US17795280

申请日：2021-01-27

Applicant: BASF SE

Inventor： Frank WUERTHNER ,  Magnus MAHL ,  Helmut REICHELT

IPC: C07D221/18 ,  C09K11/06 ,  C09D5/22

Abstract: The present invention relates to compounds of the formula (I), a process for its preparation and its use as fluorescent dye that absorbs light emitted from an irradiation source and emits light different from that of the irradiation source and having a wavelength in the range from 680 to 950 nm; in photovoltaic applications; or as semiconductor in organic electronic applications; as laser dye, in an ink for machine readability and/or security applications or for the laser-welding of plastics; or for brand protection or as marker for liquids. The compounds of formula (I) may have a high fluorescence quantum yield, a high molar extinction coefficient, a high solubility and stability in the application medium, good storage stability and/or good detectability even in very small amounts in the correspondingly marked liquids.

公开(公告)号：US20210388223A1

公开(公告)日：2021-12-16

申请号：US17286473

申请日：2019-10-17

Applicant: BASF SE

Inventor： Roland Hinrich STAFF ,  Yannick FUCHS ,  Helmut REICHELT ,  Hans REICHERT ,  Oliver SEEGER ,  Korinna DORMANN ,  Bernd Dieter OSCHMANN

IPC: C09D11/037 ,  C09D11/50 ,  C09D5/32 ,  D21H21/40 ,  D21H21/48 ,  D21H19/42 ,  C09B67/08 ,  C09B67/02 ,  B42D25/382 ,  B41M3/14

Abstract: The present invention relates to microparticle compositions comprising an organic IR absorbing pigment having a main absorption maximum in the range from 750 to 1100 nm. The invention also relates to a process for producing said microparticle compositions and to their use in a printing ink, in particular in a printing ink, which is suitable for producing a security feature or a security document. The microparticles of the pigment composition contain the organic IR absorbing pigment as solid particles, which are surrounded by or embedded in an aminoplast polymer, which is a polycondensation product of one or more amino compounds and one or more aldehydes. The microparticle based pigment composition is characterized by a volume based particle size distribution, as determined by static light scattering according to ISO 13320:2009 EN, having a D(4,3) value in the range from 1.0 to 15.0 μm.

公开(公告)号：US20170327465A1

公开(公告)日：2017-11-16

申请号：US15529676

申请日：2015-09-29

Applicant: BASF SE ,  Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.

Inventor： Thomas GESSNER ,  Helmut REICHELT ,  Hans REICHERT ,  Daniel JAENSCH ,  Long CHEN ,  Klaus MUELLEN

IPC: C07D221/18 ,  C09B15/00 ,  C07D471/06 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50 ,  H01L51/05 ,  H01L51/42

CPC classification number: C07D221/18 ,  C07D221/08 ,  C07D471/04 ,  C07D471/06 ,  C09B3/14 ,  C09B5/62 ,  C09B15/00 ,  C09B57/08 ,  C09D11/50 ,  C09D11/52 ,  C09K11/06 ,  C09K2211/1018 ,  C09K2211/1029 ,  C09K2211/1044 ,  H01L51/0072 ,  H01L51/0558 ,  H01L51/42 ,  H01L51/5012 ,  H05B33/14 ,  Y02E10/549

Abstract: A 4-hydroxquinoline compound has the formula (I) wherein A is selected from diradicals of the formulae (A.1), (A.2), (A.3), (A.4), (A.5), and (A.6) wherein R1, R2a, R2b, R3, if present R4a, R4b, R5a, R5b, R6a, R6b, R6c, R6d, Rn1, Rn2, Rn3, Rn4, Rm5, Rm6, Rm7, Rm8, R7, R8a, R9 are as defined in the description.