公开(公告)号：TR9801194T2

公开(公告)日：1998-10-21

申请号：TR9801194

申请日：1996-12-16

Applicant: BASF AG

Inventor： KRECH RUDIGER ,  ROTERMUND UDO ,  BOLLMANN HEINZ ,  HEMPEL RENATE ,  SCHOLZ WOLFGANG ,  GENZ MANFRED

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/76 ,  C08G10/08

CPC classification number: C08G18/7664 ,  C08G18/089 ,  C08G2101/0066 ,  C08G2101/0083 ,  C08G2350/00

公开(公告)号：CZ176998A3

公开(公告)日：1998-10-14

申请号：CZ176998

申请日：1996-12-16

Applicant: BASF AG

Inventor： KRECH RUDIGER ,  ROTERMUND UDO ,  BOLLMANN HEINZ ,  HEMPEL RENATE ,  SCHOLZ WOLFGANG ,  GENZ MANFRED

IPC: C08J9/36 ,  C08G18/08 ,  C08G18/40 ,  C08G18/76 ,  C08G101/00

Abstract: PCT No. PCT/EP96/05639 Sec. 371 Date Nov. 18, 1998 Sec. 102(e) Date Nov. 18, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23534 PCT Pub. Date Jul. 3, 1997A microcellular PU elastomer having improved dynamic-mechanical properties and based on an isocyanate component consisting essentially of 4,4'-MDI and also further customary constituents has, after heating at from 100 to 120 DEG C. for from 8 to 24 hours, a melting range of from 130 DEG C. as the minimum lower limit to 230 DEG C. as a minimum upper limit, measured by differential scanning calorimetry (DSC) at a heating rate of 20 DEG C./min, and a urea content of from 14 to 18% by weight. A process is also provided for preparing such a microcellular PU elastomer having improved dynamic mechanical properties. The microcellular PU elastomers can be used for producing damping elements.

公开(公告)号：PL326221A1

公开(公告)日：1998-08-31

申请号：PL32622196

申请日：1996-09-30

Applicant: BASF AG

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

IPC: C08G18/10 ,  C08G18/40 ,  C08G18/72 ,  C08G18/76 ,  C08J9/14

Abstract: Compact and preferably cellular polyurethane elastomers based on polyisocyanate mixtures containing 3,3'-dimethylbiphenyl 4,4'-diisocyanate are produced by reactinga) relatively high molecular weight polyhydroxyl compounds and, if desired,b) low molecular weight hydroxyl-containing chain extenders and/or crosslinkers withc) 3,3'-dimethylbiphenyl 4,4'-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or at least one aliphatic diisocyanate having from 4 to 12 carbon atoms and/or at least one cycloaliphatic diisocyanate having from 6 to 18 carbon atoms, where the formative components (a), (c) and, if used, (b) are advantageously reacted by the prepolymer method,in the presence or absence ofd) catalysts,e) blowing agents andf) additives.Isocyanate prepolymers suitable for this purpose are preferably ones based on diphenylmethane 4,4'-diisocyanate and 3,3'-dimethylbiphenyl 4,4'-diisocyanate.

公开(公告)号：CZ9801095A3

公开(公告)日：1998-08-12

申请号：CZ109598

申请日：1996-09-30

Applicant: BASF AG

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

IPC: C08G18/10 ,  C08G18/40 ,  C08G18/72 ,  C08G18/76 ,  C08J9/14 ,  C08J9/04

CPC classification number: C08J9/14 ,  C08G18/724 ,  C08G18/7607 ,  C08G18/7671 ,  C08G2101/0008 ,  C08G2101/0066 ,  C08G2101/0083 ,  C08J2375/04

公开(公告)号：PL325634A1

公开(公告)日：1998-08-03

申请号：PL32563496

申请日：1996-09-09

Applicant: BASF AG

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

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

Abstract: Compact and preferably cellular polyurethane elastomers are produced by reactinga) polyhydroxyl compounds having molecular weights of from 800 to 6000 and, if desired,b) chain extenders and/or crosslinkers having molecular weights of up to 800 [lacuna]c) naphthylene 1,5-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 3,3'-dimethylbiphenyl diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or aliphatic diisocyanate having from 4 to 12 carbon atoms and/or cycloaliphatic diisocyanate having from 6 to 18 carbon atoms, where the formative components (a), (c) and, if used, (b) are preferably reacted by the prepolymer method,in the presence or absence ofd) catalysts,e) blowing agents andf) additives. Isocyanate prepolymers suitable for this purpose are also described.

公开(公告)号：CA2259934A1

公开(公告)日：1998-01-22

申请号：CA2259934

申请日：1997-06-30

Applicant: BASF AG

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

IPC: C08G18/10 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66 ,  C08G18/72 ,  C08G18/76 ,  C08G101/00 ,  C08J3/14 ,  C08J9/04

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, 1,2diphenylethane-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：CA2239790A1

公开(公告)日：1997-07-03

申请号：CA2239790

申请日：1996-12-16

Applicant: BASF AG

Inventor： KRECH RUEDIGER ,  BOLLMANN HEINZ ,  HEMPEL RENATE ,  GENZ MANFRED ,  SCHOLZ WOLFGANG ,  ROTERMUND UDO

IPC: C08G18/08 ,  C08G18/76 ,  C08J9/04 ,  C08L75/00

Abstract: The invention relates to a microcellular PU elastomer with improved dynamicmechanical characteristics, based on an isocyanate component consisting essentially of 4,4'-MDI and on other standard components. The proposed elastomer following tempering at temperatures of 100-120 ~C for 8-24 hours has a melting range of between 130 ~C as minimum lower limit and 230 ~C as minimum upper limit, as measured by differential scanning calorimetry (DSC) at a heating rate of 20 ~C/min and a urea content of 14-18 wt.%. Also disclosed are a process for producing such a microcellular PU elastomer with improved dynamic-mechanical characteristics and the use of said elastomers in the production of damping elements.

公开(公告)号：AU7126896A

公开(公告)日：1997-04-01

申请号：AU7126896

申请日：1996-09-09

Applicant: BASF AG

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

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

Abstract: Compact and preferably cellular polyurethane elastomers are produced by reactinga) polyhydroxyl compounds having molecular weights of from 800 to 6000 and, if desired,b) chain extenders and/or crosslinkers having molecular weights of up to 800 [lacuna]c) naphthylene 1,5-diisocyanate and at least one additional aromatic diisocyanate selected from the group consisting of tolylene diisocyanate, diphenylmethane diisocyanate, 3,3'-dimethylbiphenyl diisocyanate, 1,2-diphenylethane diisocyanate and phenylene diisocyanate, and/or aliphatic diisocyanate having from 4 to 12 carbon atoms and/or cycloaliphatic diisocyanate having from 6 to 18 carbon atoms, where the formative components (a), (c) and, if used, (b) are preferably reacted by the prepolymer method,in the presence or absence ofd) catalysts,e) blowing agents andf) additives. Isocyanate prepolymers suitable for this purpose are also described.

公开(公告)号：BR0208342A

公开(公告)日：2004-03-23

申请号：BR0208342

申请日：2002-03-28

Applicant: BASF AG

Inventor： BOLLMANN HEINZ ,  WAGNER HERMANN DIETRICH ,  STRAUSS MICHAEL ,  JESCHKE TORSTEN

IPC: C08G18/10 ,  C08G18/42 ,  C08G18/76

Abstract: Cellular polyisocyanate polyadducts are prepared by reacting (a) isocyanates with (b) compounds reactive toward isocyanates and (d) water, by a process in which a polyester having 2 hydroxyl groups and based on the condensation of at least one dicarboxylic acid with at least one alkanediol and/or alkenediol of 3 to 6 carbon atoms, whose carbon skeleton has at least one alkyl and/or alkenyl side chain between the hydroxyl groups, is used as (b).

公开(公告)号：DE10225795A1

公开(公告)日：2003-12-18

申请号：DE10225795

申请日：2002-06-10

Applicant: BASF AG

Inventor： WULF ANDREAS ,  BERELSMANN RALF ,  BOLLMANN HEINZ

IPC: F16F1/38

Abstract: The round bearing unit comprises a cylindrical bearing element (ii) whose end face between the outer and inner sleeves (i, iii) is sealed by means of a compact polyisocyanate polyaddition product (iv). An Independent claim is also included for a method for producing the proposed round bearing unit.