公开(公告)号：DE19534163A1

公开(公告)日：1997-03-20

申请号：DE19534163

申请日：1995-09-15

Applicant: BASF AG

Inventor： GENZ MANFRED DR ,  HASELHORST WALTER ,  JESCHKE TORSTEN DR ,  BRUNS UTE ,  BOLLMANN HEINZ ,  STRAUS MICHAEL DR ,  SCHOLZ WOLFGANG ,  VOELKEL RUEDIGER DR ,  PEUKER HARTMUT ,  HELLMANN GERHARD

IPC: C08G18/40 ,  C08G18/10 ,  C08G18/65 ,  C08G18/72 ,  C08G18/76

Abstract: The invention concerns a method of preparing compact and preferably cellular polyurethane elastomers by reacting a) high molecular polyhydroxyl compounds and optionally b) low molecular chain-extending and/or crosslinking agents with c) 1,5-naphthylene diisocyanate and at least one additional aromatic diisocyanate, selected from the group comprising toluylene diisocyanate, diphenylmethane diisocyanate, 3,3'-dimethyl diphenyl diisocyante, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or aliphatic diisocyanate with between 4 and 12 carbon atoms and/or cycloaliphatic diisocyanate with between 6 and 18 carbon atoms, the structural components (a), (c) and optionally (b) advantageously being reacted by the prepolymer method, in the presence or absence of d) catalysts, e) expanding agents and f) additives. The invention further concerns isocyanate prepolymers suitable for this method.