公开(公告)号：JPH1067928A

公开(公告)日：1998-03-10

申请号：JP19365897

申请日：1997-07-18

Applicant: HOECHST AG

Inventor： MARTINI THOMAS DR ,  NEUNZERLING HELMUT

IPC: C08L75/04 ,  C08K5/00 ,  C08K5/3445

Abstract: PROBLEM TO BE SOLVED: To obtain the subject polyurethane capable of exhibiting extremely excellent brightening effect, by dissolving a pyrazoline-based brightener in a polyol component or an isocyanate component. SOLUTION: This polyurethane is obtained by dissolving (C) a pyrazoline- based brightener in (A) a polyol component or (B) an isocyanate component and subjecting the components A and B to polyaddition. A compound of the formula [Ar1 and Ar2 are each independently a (substituted) aryl; R1 and R1 ' are each H, a 1-4C alkyl or phenyl] may be cited as the component C. Consequently, the most suitable brightening effect can be exhibited.

公开(公告)号：SG66381A1

公开(公告)日：1999-07-20

申请号：SG1997002516

申请日：1997-07-22

Applicant: HOECHST AG

Inventor： ODENWALDSTRABE THOMAS MARTINI ,  NEUNZERLING HELMUT ,  MARTINI THOMAS

IPC: C08L75/04 ,  C08K5/00 ,  C08K5/3445 ,  C08L75/08

Abstract: Optically brightened polyurethane (PUR), obtained by poly-addition of the required polyol and isocyanate components, either of which contains a dissolved pyrazoline brightener.