1.
    发明专利
    未知

    公开(公告)号:PT850260E

    公开(公告)日:2002-07-31

    申请号:PT96932483

    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.

    2.
    发明专利
    未知

    公开(公告)号:ES2156295T3

    公开(公告)日:2001-06-16

    申请号:ES96933440

    申请日:1996-09-30

    Applicant: BASF AG

    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.

    3.
    发明专利
    未知

    公开(公告)号:DE59606785D1

    公开(公告)日:2001-05-17

    申请号:DE59606785

    申请日:1996-09-30

    Applicant: BASF AG

    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.

    СПОСОБ ПОЛУЧЕНИЯ ЯЧЕИСТЫХ ПОЛИУРЕТАНОВЫХ ЭЛАСТОМЕРОВ И ПРЕПОЛИМЕРЫ ДЛЯ НИХ

    公开(公告)号:EA003631B1

    公开(公告)日:2003-08-28

    申请号:EA199900024

    申请日:1997-06-30

    Applicant: BASF AG

    Abstract: Объектомизобретенияявляетсяспособполученияячеистыхполиуретановыхэластомеровпутемвзаимодействияполигидроксильныхсоединенийс функциональностьюот 2 до 3 имолекулярнымвесомот 800 до 6000 сароматическимдиизоцианатомс получениемполупродукта, которыйподвергаютвзаимодействиюс органическимполиизоцианатомс получениемпреполимера, которыйподвергаютвзаимодействиюс водойи средствомдляудлиненияцепии/илисредствомдлясшивкис молекулярнымвесомдо 800, приэтомпроцесспроводятв присутствииилиотсутствиикатализатора, заключающийсяв том, чтовзаимодействиеполигидроксильныхсоединенийс ароматическимдиизоцианатом, выбраннымизгруппы, включающейдифенилметандиизоцианати егосмесьс 1,4-фенилендиизоцианатом, осуществляютприэквивалентномсоотношениигидроксильныхгруппк изоцианатнымгруппам, равном 1 : (>1-6), авзаимодействиеполупродукта, содержащегоуретановыеи изоцианатныегруппы, сорганическимполиизоцианатом, представляющимсобой 1,4-фенилендиизоцианат, осуществляютприэквивалентномсоотношениигидроксильныхгрупписходныхполигидроксильныхсоединенийк изоцианатнымгруппам, равном 1 : (0,2-6), атакжепреполимерыдляних.

    7.
    发明专利
    未知

    公开(公告)号:BR9610964A

    公开(公告)日:1999-04-06

    申请号:BR9610964

    申请日:1996-09-30

    Applicant: BASF AG

    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.

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