11.
    发明专利
    未知

    公开(公告)号:DE19601410B4

    公开(公告)日:2004-12-09

    申请号:DE19601410

    申请日:1996-01-17

    Applicant: BASF AG

    Abstract: A process for the production of flexible polyurethane foam by reacting (a) unmodified and/or modified isocyanate compounds with (b) high-mol. wt. compounds with at least 2 reactive hydrogen atoms and optionally (c) low-mol. wt. chain extenders and/or crosslinkers, in presence of (d) blowing agents, (e) catalysts, (f) fire retardants and optionally (g) other additives etc. In this process, component (a) comprises prepolymers obtained by reaction of (a1) polyester-polyols and/or polyether-ester-polyols with (a2) aromatic diisocyanates, followed by a special after-treatment.

    16.
    发明专利
    未知

    公开(公告)号:DE502005002887D1

    公开(公告)日:2008-04-03

    申请号:DE502005002887

    申请日:2005-07-19

    Applicant: BASF AG

    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].

    18.
    发明专利
    未知

    公开(公告)号:DE10156014A1

    公开(公告)日:2003-06-05

    申请号:DE10156014

    申请日:2001-11-15

    Applicant: BASF AG

    Abstract: The present invention relates to a process for the production of polyether alcohols by catalytic addition of alkylene oxides to H-functional initiators using amines as catalysts, wherein the addition of the amines to the reaction mixture is effected prior to or at the commencement of the chemical addition of the alkylene oxides and also at least once during the reaction, said additional addition of the catalyst being carried out at the point of the reaction at which there is an increased occurrence of side reactions and/or when the alkylene oxides undergo a change in the polyether chain.

    PREPARACION DE UN COMPONENTE DE POLIOL HOMOGENEO, ESTABLE A LA SEPARACION.

    公开(公告)号:MX9801234A

    公开(公告)日:1998-08-30

    申请号:MX9801234

    申请日:1998-02-13

    Applicant: BASF AG

    Abstract: Un componente de poliol homogéneo estable a la separacion que comprende por lo menos dos compuestos de peso molecular relativamente elevado que contienen por lo menos dos átomos de hidrogeno reactivos y, si se desea, alargadores y/o reticuladores de cadena de bajo peso molecular y también, si se desea, agentes hinchadores, catalizadores y además auxiliares y/o aditivos, se prepara añadiendo a este componente por lo menos una amina y por lo menos un isocianato orgánico y/o orgánico modificado. Este componente de poliol es util para producir poliuretanos, en particular poliuretanos compactos y espumados.

    20.
    发明专利
    未知

    公开(公告)号:DE102005025980A1

    公开(公告)日:2006-12-07

    申请号:DE102005025980

    申请日:2005-06-03

    Applicant: BASF AG

    Abstract: This invention relates to composite elements comprising a polyurethane foam (i), a nonwoven of thermoplastic polyurethane (ii) and if appropriate a covering layer (iii), and also to a process for their production and to the use of this invention's composite elements as seats or carpets.

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