公开(公告)号：DE2145019A1

公开(公告)日：1973-03-22

申请号：DE2145019

申请日：1971-09-09

Applicant: HOECHST AG

Inventor： MENGLER HELMUT DIPL CHEM DR PH

IPC: C09B57/00 ,  C07D231/06 ,  D06L3/12 ,  C07D49/18

Abstract: Novel pyrazolines are obtained by condensation of substituted propiophenones or vinyl-phenyl-ketones with substituted phenyl hydrazines. The products are useful as optical brighteners of a great variety of the shade of their fluorescence and of an improved fastness to light.

公开(公告)号：DE2444784A1

公开(公告)日：1975-04-03

申请号：DE2444784

申请日：1974-09-19

Applicant: HOECHST AG

Inventor： MENGLER HELMUT DIPL CHEM DR PH ,  SCHINZEL ERICH DR PHIL ,  ROESCH GUENTER

IPC: C08K5/00 ,  C07D251/68 ,  C08K5/16 ,  C08L77/00 ,  C09B57/00 ,  D06L3/12 ,  C07D251/48

Abstract: Condensation compounds of 2 mols of cyanuric acid with 1 mol of 4,4'-diaminostilbene-2,2'-disulfonic acid, at least two mols of a lower alkylene diamine which is acylated at one nitrogen atom and, optionally, another two mols of another amine or an alcohol or a phenol are useful as optical brighteners, especially for cellulosic and polyamide materials.