公开(公告)号：CA2254231A1

公开(公告)日：1999-06-10

申请号：CA2254231

申请日：1998-12-09

Applicant: BASF AG

Inventor： OPPERMANN WILHELM ,  LANGE MARTIN ,  OESS OLIVER ,  HERMANUTZ FRANK ,  HIRT PETER ,  LEBERFINGER MARCUS

IPC: C08G18/09 ,  C08G18/48 ,  C08G18/66 ,  C08G18/67 ,  C08G18/73 ,  C08G18/65 ,  C08G18/75

Abstract: A reaction mixture comprises (a) isocyanates, (b) compounds which are reactive toward isocyanates and have a mean functionality of from 1.8 to 2.5 and a molecular weight of from 500 to 8000 g/mol and, if desired, (c) chain extenders having a molecular weight of less than 500 g/mol, (d) catalysts and/or (e) customary auxiliaries and/or additives, wherein the isocyanates (a) comprise aliphatic and/or cycloaliphatic isocyanates and the ratio of the isocyanate groups present in (a) to the isocyanate-reactive groups present in (b) plus, if used, (c) is from 1 : 0.98 to 1 : 0.8.