71.
    发明专利
    未知

    公开(公告)号:ES2171720T3

    公开(公告)日:2002-09-16

    申请号:ES96932483

    申请日:1996-09-09

    Applicant: BASF AG

    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.

    72.
    发明专利
    未知

    公开(公告)号:AT217016T

    公开(公告)日:2002-05-15

    申请号:AT97930440

    申请日:1997-06-30

    Applicant: BASF AG

    Abstract: Compact and preferably cellular polyurethane elastomers are prepared by reactinga) relatively high molecular weight polyhydroxyl compounds and if desired,b) low molecular weight chain extenders and/or crosslinkers withc) phenylene 1,4-diisocyanate (p-PDI) 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/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 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 described.

    73.
    发明专利
    未知

    公开(公告)号:DE59608602D1

    公开(公告)日:2002-02-21

    申请号:DE59608602

    申请日:1996-09-09

    Applicant: BASF AG

    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.

    СОДЕРЖАЩИЙ ИЗОЦИАНАТНЫЕ ГРУППЫ ПРЕПОЛИМЕР С СОДЕРЖАНИЕМ ИЗОЦИАНАТНЫХ ГРУПП 3,3-10 МАС.%

    公开(公告)号:EA001514B1

    公开(公告)日:2001-04-23

    申请号:EA199800371

    申请日:1996-09-30

    Applicant: BASF AG

    Abstract: Описываетсясодержащийизоцианатныегруппыпреполимерс содержаниемизоцианатныхгрупп 3,3-10 мас.%, полученныйвзаимодействием, поменьшеймере, одногополигидроксильногосоединенияс молекулярноймассойотболеечем 800 до 3500 илиегосмесис низкомолекулярнымгидроксилсодержащимудлинителемцепии/илисшивающимагентом, поменьшеймере, соднимароматическимдиизоцианатом, выбраннымизгруппы, включающейдифенилметандиизоцианат, 1,2-дифенилэтандиизоцианати фенилендиизоцианат, и/илис 1,6-гексаметилендиизоцианатом, и/илис 1-изоцианато-3,3,5-триметил-5-изоцианатометилциклогексаном, ипоследующимвзаимодействиемполученного, содержащегоуретановыеи 0,05-8 мас.% изоцианатныхгруппполиаддуктас 3,3'-диметилдифенил-4,4'-диизоцианатом, приэтомсоотношениеэквивалентовгидроксильныхгруппполигидроксильногосоединенияилиегосмесис указаннымудлинителемцепии/илисшивающимагентомк изоцианатнымгруппамароматическихдиизоцианатовуказаннойгруппыи изоцианатнымгруппамуказанного 3,3'-диметилдифенил-4,4'-диизоцианатасоставляет 1:>1-6:0,02-6, амольноесоотношениеуказанного 3,3'-диметилдифенил-4,4'-диизоцианатаи ароматическихдиазоцианатовуказаннойгруппысоставляет 1:0,1-1:10. Данныйпреполимерможетприменятьсядляполучениякомпактныхилипористыхполиуретановыхполимеров.

    76.
    发明专利
    未知

    公开(公告)号:AT184034T

    公开(公告)日:1999-09-15

    申请号:AT96943968

    申请日:1996-12-16

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/05640 Sec. 371 Date Oct. 7, 1998 Sec. 102(e) Date Oct. 7, 1998 PCT Filed Dec. 16, 1996 PCT Pub. No. WO97/23535 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 further customary constituents has a physicochemical structure which, in the gel permeation chromatograph (GPC) of a solution of the microcellular polyurethane elastomer prepared at 90 DEG C. in N,N-dimethylformamide containing 1 percent of di-n-butylamine measured against polymethyl methacrylate (PMMA) as standard, displays a signal occurring in addition to low molecular weight main signal and comprising one or more peaks at an (apparent) molar mass of greater than 250,000 g/mol which becomes smaller or disappears on addition of lithium chloride to this solution, 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.

    77.
    发明专利
    未知

    公开(公告)号:BR9710233A

    公开(公告)日:1999-08-10

    申请号:BR9710233

    申请日:1997-06-30

    Applicant: BASF AG

    Abstract: Compact and preferably cellular polyurethane elastomers are prepared by reactinga) relatively high molecular weight polyhydroxyl compounds and if desired,b) low molecular weight chain extenders and/or crosslinkers withc) phenylene 1,4-diisocyanate (p-PDI) 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/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 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 described.

    80.
    发明专利
    未知

    公开(公告)号:TR199900026T2

    公开(公告)日:1999-03-22

    申请号:TR9900026

    申请日:1997-06-30

    Applicant: BASF AG

    Abstract: Compact and preferably cellular polyurethane elastomers are prepared by reactinga) relatively high molecular weight polyhydroxyl compounds and if desired,b) low molecular weight chain extenders and/or crosslinkers withc) phenylene 1,4-diisocyanate (p-PDI) 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/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 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 described.

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