公开(公告)号：DE19627907A1

公开(公告)日：1998-01-15

申请号：DE19627907

申请日：1996-07-11

Applicant: BASF AG

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

IPC: C08G18/10 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66 ,  C08G18/72 ,  C08G18/76 ,  C08G101/00 ,  C08J3/14 ,  C08G18/40 ,  C08G18/65 ,  C08G18/44 ,  C08G18/32 ,  C08J9/06 ,  C08L75/04

Abstract: A process is disclosed for preparing compact and preferably cellular polyurethane elastomers by reacting: (a) high-molecular polyhydroxyl compounds and optionally (b) low-molecular chain-lengthening and/or cross-linking agents with (c) 1,4-phenylene diisocyanate (p-PDI) and at least one additional aromatic diisocyanate selected from the group of toluylene-diisocyanate, diphenylmethane-diisocyanate, 3,3'dimethyl-diphenyl-diisocyanate, 1,2-diphenylethane-diisocyanate and/or an aliphatic diisocyanate with 4 to 12 carbon atoms and/or a cycloaliphatic diisocyanate with 6 to 18 carbon atoms, in the presence or absence of (d) catalysts; (e) foaming agents; and (f) additives. Components (a), (c) and optionally (c) are preferably reacted after their prepolymerisation. Also disclosed are isocyanate prepolymers suitable for preparing these elastomers.

公开(公告)号：DE19538330A1

公开(公告)日：1997-04-17

申请号：DE19538330

申请日：1995-10-14

Applicant: BASF AG

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

IPC: C08G18/10 ,  C08G18/40 ,  C08G18/72 ,  C08G18/76 ,  C08J9/14 ,  C08G18/65 ,  C08G18/42 ,  C08G18/44 ,  C08G18/48 ,  C08L75/04

Abstract: The object of the invention is a process for producing compact and preferably cellular polyurethane elastomers based on 3,3' dimethyl diphenyl 4,4' diisocyanate-containing polyisocyanate mixtures by the reaction of a) high-molecular polyhydroxyl compounds and possibly b) low-molecular hydroxyl group-containing chain extending and/or cross-linking agents with c) 3,3' dimethyl diphenyl 4,4' diisocyanate and at least one additional aromatic diisocyanate from the group toluylene diisocyanate, diphenyl methane diisocyanate, 1,2 diphenyl ethane diisocyanate and phenylene diisocyanate, and/or at least one aliphatic diisocyanate with 4 to 12 carbon atoms and/or at least one cycloaliphatic diisocyanate with 6 to 18 carbon atoms, in which the structural components (a), (c) and possibly (b) are advantageously brought to reaction by the prepolymer process, in the presence or absence of d) catalysts, e) foaming agents and f) additives and isocyanate prepolymers suitable therefor, preferably those based on 4,4' diphenyl methane diisocyanate and 3,3' dimethyl diphenyl 4,4' diisocyanate.

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.