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    41.
    发明专利
    未知

    公开(公告)号：DE50200425D1

    公开(公告)日：2004-06-17

    申请号：DE50200425

    申请日：2002-05-15

    Applicant: BASF AG

    Inventor： ARLT ANDREAS ,  WAGNER KLAUS ,  VARENKAMP VOLKER

    IPC: C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/66

    Abstract: Highly elastic polyurethane foams have a DIN EN ISO 2440 and DIN EN ISO 1856 (Process A) humid aged compression set (HACS) ≤ 15% and a DIN EN ISO 1856 (Process C) wet compression set (WCS) ≤ 20%. An Independent claim is also included for highly elastic polyurethane foams obtained by reacting (A) a polyisocyanate with (B) a component comprising by weight (B1) a polymerpolyol (5-75%) and (B2) a mixture (25-95%) consisting of (i) a polyetheralcohol (70-98%) of mol. wt. 3500-6500, functionality ≤ 3 and ethylene oxide (EO) content 8-20 wt.% and (ii) a polyetheralcohol (2-30%) of mol. wt. 4000-7000, functionality 4-8 and EO content 5-15 wt.%.

    42.
    发明专利
    未知

    公开(公告)号：DE59711326D1

    公开(公告)日：2004-04-01

    申请号：DE59711326

    申请日：1997-07-08

    Applicant: BASF AG

    Inventor： GUETTES BERND ,  DINSCH STEFAN ,  STEINCHEN KARL-HEINZ ,  HOEPPNER GERD ,  WAGNER KLAUS ,  LARBIG HARALD ,  LUTTER HEINZ-DIETER

    IPC: C08G18/48 ,  C08G65/28 ,  C08G65/30

    Abstract: A process for the production of flexible polyurethane foam comprises reacting: (a) optionally modified polyisocyanates with: (b) compounds with reactive hydrogens, and (c) optionally chain extenders and/or crosslinkers, in presence of: (d) blowing agents, (e) catalysts, (f) fire retardants, and optionally: (g) other additives etc. At least 10 wt% of the compounds used in this process comprises polyether-polyols obtained by base-catalysed reaction of lower alkylene oxides with hydroxy-functional starters and subjected, during or after alkylene oxides-addition and with a water content of not more than 0.1 wt.%, to distillation at temperatures above 49 degrees C.

    Preparation of soft polyurethane foam, useful e.g. in mattresses and furniture, using block polyoxypropylene-polyoxyethylene polyol with specific hydroxy number
    43.
    发明专利
    Preparation of soft polyurethane foam, useful e.g. in mattresses and furniture, using block polyoxypropylene-polyoxyethylene polyol with specific hydroxy number 未知

    公开(公告)号：DE10111823A1

    公开(公告)日：2002-09-26

    申请号：DE10111823

    申请日：2001-03-13

    Applicant: BASF AG

    Inventor： LUTTER HEINZ-DIETER ,  BRUCHMANN BERND ,  WAGNER KLAUS ,  MUELLER JENS

    IPC: C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G59/14

    Abstract: Preparation of soft polyurethane (PU) foam (A) by reacting a polyisocyanate (I) with a block polyoxypropylene-polyoxyethylene polyol (II), having at least two isocyanate-reactive hydrogen atoms; hydroxy number 25-45 mg potassium hydroxide/g and content of terminally bound ethylene oxide units 15-17wt.% on total amount of alkylene oxide. Preparation of soft polyurethane (PU) foam (A) by reacting a polyisocyanate (I) with a block polyoxypropylene-polyoxyethylene polyol (II), having at least two isocyanate-reactive hydrogen atoms; hydroxy number 25-45 mg potassium hydroxide/g and content of terminally bound ethylene oxide units 15-17wt.% on total amount of alkylene oxide. (II) is prepared by addition of ethylene and propylene oxides to a starter molecule (III) of mean functionality 3. Independent claims are also included for: (a) (A) produced by the new method; (b) (II); and (c) polyol mixture, for preparing soft PU, that contains at least one (II).

    48.
    发明专利
    未知

    公开(公告)号：DE102004041299A1

    公开(公告)日：2006-03-09

    申请号：DE102004041299

    申请日：2004-08-25

    Applicant: BASF AG

    Inventor： BAUER STEPHAN ,  BLEUEL ELKE ,  EISENHARDT ANDREA ,  SCHUSTER MARIA ,  WAGNER KLAUS ,  WENZEL MARION

    IPC: C08G18/18

    Abstract: Preparation of polyurethane-foaming substance (A) with reduced emission comprises: reacting polyisocyante with a compound (B) containing at least two reactive hydrogen atoms of isocyanates in the presence of a catalysts, where the catalyst is at least an alcohol compound (I). Preparation of polyurethane-foaming substance (A) with reduced emission comprises: reacting polyisocyanate with a compound containing at least two reactive hydrogen atoms of isocyanates in the presence of a catalyst, where the catalyst is an alcohol compound of formula (I). R1, R2 : -C aH 2a+1 or -C bH cN d; a : 1-4; b : 3-7; c : 6-14; d : 0-2; R3 : C eH fO g; e : 0-4; f : 0-8; g : 0-2; R4 : H, CH 3 or C 2H 5; and n, m : 1-5. An independent claim is also included for the polyurethane-foaming substance obtained by the method with a content of volatile organic compounds (less than 100 ppm) and condensable compounds (less than 250 ppm). [Image].

    49.
    发明专利
    未知

    公开(公告)号：BR0308127A

    公开(公告)日：2005-01-11

    申请号：BR0308127

    申请日：2003-03-13

    Applicant: BASF AG

    Inventor： ZASCHKE BERND ,  HOPPE ANDREAS ,  SCHUSTER MARITA ,  WENZEL MARION ,  WAGNER KLAUS

    IPC: C08F283/06 ,  C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/65 ,  C08G18/69 ,  C09J175/14

    Abstract: The invention relates to graft polyols with a bimodal particle size distribution and a total solid content of between 5 and 65 wt. %. Said polyols contain small particles with a particle diameter of between 0.05 and 0.7 μm and large particles with a particle diameter of between 0.4 and 5.0 μm, whereby the peaks of the large and small particles measured during a representation according to the light-scattering analysis method do not overlap. The total solid content with the defined particle sizes consists of a volumetric fraction of between 5 and 45% small particles and a volumetric fraction of between 95 and 55% large particles, said volumetric fractions totalling 100%. The invention also relates to a method for producing graft polyols of this type and to the use thereof for producing polyurethanes.

    PROCEDIMIENTO PARA LA OBTRENCION DE PLASTICOS CELULARES DE POLIURETANO ALTAMENTE ELASTICOS.
    50.
    发明专利
    PROCEDIMIENTO PARA LA OBTRENCION DE PLASTICOS CELULARES DE POLIURETANO ALTAMENTE ELASTICOS. 未知

    公开(公告)号：ES2220856T3

    公开(公告)日：2004-12-16

    申请号：ES02010786

    申请日：2002-05-15

    Applicant: BASF AG

    Inventor： ARLT ANDREAS ,  WAGNER KLAUS ,  VARENKAMP VOLKER

    IPC: C08G18/40 ,  C08G18/48 ,  C08G18/63 ,  C08G18/66

    Abstract: Procedimiento para la obtención de plásticos celulares de poliuretano altamente elásticos mediante reacción de a) poliisocianatos con b) compuestos con al menos dos átomos e hidrógeno reactivos con grupos isocianato, caracterizado porque se emplea como compuestos con dos átomos de hidrógeno b reactivos con grupos isocianatos una mezcla, conteniendo, respectivamente referido al peso de la mezcla, b1)de un 5 hasta un 75 % en peso de al menos un poliol polímero, b2)de un 25 hasta un 95 % en peso de una mezcla, conteniendo, respectivamente referido al peso de la mezcla b2, b2i) de un 70 hasta un 98 % en peso de al menos un poliéteralcohol con un peso molecular en el intervalo de 35500 hasta 6500 g/mol, con una funcionalidad inferior o igual a 3 preferentemente de 2 a 3, con un contenido de óxido de etileno en el intervalo entre un 8 y un 20 % en peso, referido al peso del poliéteralcohol, y b2ii) de un 2 hasta un 30 5 en peso de al menos un poliéteralcohol con un peso molecular mayor a 4000 g/mol hasta 7000 g/mol, con una funcionalidad entre 4 y 8 y un contenido de óxido de etileno en el intervalo entre un 5 y un 15 % en peso, referido al peso del poliéteralcohol.

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