1.
    发明专利
    未知

    公开(公告)号:DK1471086T3

    公开(公告)日:2009-11-16

    申请号:DK04002510

    申请日:2004-02-05

    Applicant: BASF SE

    Abstract: A polyisocyanate component used for the production of flexible polyurethane foam with water as blowing agent comprises a mixture of a prepolymer obtained by reacting excess MDI with non-polar polyether-polyol(s) and a prepolymer obtained by reacting excess MDI with polar polyether-polyol(s). A method for the production of flexible polyurethane foam by reacting (a) polyisocyanates with (b) compounds with at least two NCO-reactive hydrogens in presence of (c) water as blowing agent, in which component (a) is a mixture of (ai) a prepolymer obtained by reacting MDI with less than the stoichiometric amount of non-polar polyether-polyol(s) and (aii) a prepolymer obtained by reacting MDI with less than the stoichiometric amount of polar polyether-polyol(s). An independent claim is also included for flexible polyurethane foam obtained by this method.

    2.
    发明专利
    未知

    公开(公告)号:DE502004009848D1

    公开(公告)日:2009-09-17

    申请号:DE502004009848

    申请日:2004-02-05

    Applicant: BASF SE

    Abstract: A polyisocyanate component used for the production of flexible polyurethane foam with water as blowing agent comprises a mixture of a prepolymer obtained by reacting excess MDI with non-polar polyether-polyol(s) and a prepolymer obtained by reacting excess MDI with polar polyether-polyol(s). A method for the production of flexible polyurethane foam by reacting (a) polyisocyanates with (b) compounds with at least two NCO-reactive hydrogens in presence of (c) water as blowing agent, in which component (a) is a mixture of (ai) a prepolymer obtained by reacting MDI with less than the stoichiometric amount of non-polar polyether-polyol(s) and (aii) a prepolymer obtained by reacting MDI with less than the stoichiometric amount of polar polyether-polyol(s). An independent claim is also included for flexible polyurethane foam obtained by this method.

    PROCEDIMIENTO PARA LA OBTECION DE ESPUMAS BLANDAS DE POLIURETANO.

    公开(公告)号:ES2328132T3

    公开(公告)日:2009-11-10

    申请号:ES04002510

    申请日:2004-02-05

    Applicant: BASF SE

    Abstract: Procedimiento para la obtención de espumas blandas de poliuretano por medio de la reacción de a) poliisocianatos con b) compuestos con, al menos, dos átomos de hidrógeno reactivos con los grupos isocianato en presencia de c) agua como agente propulsor, caracterizado porque a título de poliisocianatos a) se emplea una mezcla constituida por, al menos, ai) un prepolímero, preparado por medio de la reacción de MDI con un defecto de, al menos, un polioxipropilen-poliol o de un polioxietilen-polioxipropilen-poliol con un contenido en óxido de etileno en la cadena de poliéter en el intervalo de un 10% en peso como máximo, aii) un prepolímero, preparado por medio de la reacción de MDI con un defecto de, al menos, un polioxietilen-polioxipropilen-poliol con un contenido en óxido de etileno en la cadena de poliéter de, al menos, un 60% en peso.

    8.
    发明专利
    未知

    公开(公告)号:AT438670T

    公开(公告)日:2009-08-15

    申请号:AT04002510

    申请日:2004-02-05

    Applicant: BASF SE

    Abstract: A polyisocyanate component used for the production of flexible polyurethane foam with water as blowing agent comprises a mixture of a prepolymer obtained by reacting excess MDI with non-polar polyether-polyol(s) and a prepolymer obtained by reacting excess MDI with polar polyether-polyol(s). A method for the production of flexible polyurethane foam by reacting (a) polyisocyanates with (b) compounds with at least two NCO-reactive hydrogens in presence of (c) water as blowing agent, in which component (a) is a mixture of (ai) a prepolymer obtained by reacting MDI with less than the stoichiometric amount of non-polar polyether-polyol(s) and (aii) a prepolymer obtained by reacting MDI with less than the stoichiometric amount of polar polyether-polyol(s). An independent claim is also included for flexible polyurethane foam obtained by this method.

Patent Agency Ranking