公开(公告)号：BR9704473A

公开(公告)日：1999-01-12

申请号：BR9704473

申请日：1997-08-20

Applicant: BASF AG

Inventor： PEUKER HARTMUT ,  SCHOLZ WOLFGANG ,  BRUNS UTE ,  LUDERWALD MICHAEL-CHRISTIAN ,  JESCHKE TORSTEN ,  KRIESMANN ARNE

IPC: C08J9/12 ,  C08G18/06 ,  C08G18/10 ,  C08G18/42 ,  C08G18/48 ,  C08G18/64 ,  C08G18/65 ,  C08G18/76 ,  C08G101/00 ,  C08J9/33 ,  C08L75/04 ,  C08J11/04 ,  C08G18/82

Abstract: A process for recycling polyurethanes (PUR), in which the PUR (I) is finely chopped and added in amounts of 0.1-40 wt.% to a reaction mixture for the production of PUR by the polyaddition reaction of (a) polyisocyanates, (b) isocyanate-reactive substances with active hydrogen atoms and optionally (c) chain extenders and/or crosslinkers, catalysts, blowing agents and other normal additives.