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    PRODUCTION OF SOUND-ABSORBING POLYURETHANE FOAMS HAVING AN ADHESIVE SURFACE
    3.
    发明专利
    PRODUCTION OF SOUND-ABSORBING POLYURETHANE FOAMS HAVING AN ADHESIVE SURFACE 未知

    公开(公告)号：CA2308540A1

    公开(公告)日：2000-11-29

    申请号：CA2308540

    申请日：2000-05-15

    Applicant: BASF AG

    Inventor： ZASCHKE BERND ,  FALKE PETER ,  SCHMALER KIRSTEN

    IPC: C08G18/48 ,  C09J175/08 ,  C08G18/76

    Abstract: In a process for producing sound-absorbing PUR foams having an adhesive surface by reacting organic and/or modified organic polyisocyanates (a) with a polyetherol mixture (b) and, if desired, further compounds (c) bearing hydrogen atoms which are reactive toward isocyanates, in the presence of water and/or other blowing agents (d), catalysts (e) and, if desired, further auxiliaries and additives (f), the polyetherol mixture (b) comprises b1) at least one bifunctional to eight-functional polyetherol based on ethylene oxide and propylene oxide and having an OH number of from 20 to 80 mg KOH/g and a proportion of primary OH groups of > 50%, b2) at least one polyetherol based on ethylene oxide and propylene oxide and/or butylene oxide and a bifunctional to eight-functional initiator and having an OH number of from 20 to 80 mg KOH/g, where the proportion of ethylene oxide in the polyetherol is > 30% by weight, in amounts of from 10 to 50 parts by weight, and b3) at least one polyetherol based on propylene oxide and/or butylene oxide and, if desired, ethylene oxide and a bifunctional to eight-functional initiator and having an OH number of from 30 to 400 mg KOH/g, where the proportion of ethylene oxide in the polyetherol is

    PREPARACION DE UN COMPONENTE DE POLIOL HOMOGENEO, ESTABLE A LA SEPARACION.
    4.
    发明专利
    PREPARACION DE UN COMPONENTE DE POLIOL HOMOGENEO, ESTABLE A LA SEPARACION. 未知

    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

    Inventor： FALKE PETER ,  HENDREICH REGINA ,  SCHUSTER MARITA ,  ZASCHKE BERND

    IPC: C08G18/40 ,  C08G18/48 ,  C08G18/66 ,  C08G18/32

    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.

    5.
    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.

    Preparation of easily processed soft polyurethane foams, useful as noise damping materials, with good noise damping properties and high loss factor
    8.
    发明专利
    Preparation of easily processed soft polyurethane foams, useful as noise damping materials, with good noise damping properties and high loss factor 未知

    公开(公告)号：DE19936481A1

    公开(公告)日：2001-02-08

    申请号：DE19936481

    申请日：1999-08-03

    Applicant: BASF AG

    Inventor： ZASCHKE BERND ,  FALKE PETER ,  ROTERMUND INGE ,  SCHMALER KIRSTEN

    IPC: C08G18/48 ,  C08G18/66 ,  C08G18/58 ,  C08G18/72

    Abstract: Easily processed soft PUR foams of good noise damping properties and high loss factor can be prepared from special polyurethane mixtures. Easily processed PUR foams of good noise damping properties and high loss factor can be prepared from special polyetherol mixtures, i.e. by: (a) reaction of organic and/or modified organic polyisocyanates; with (b) a polyetherol mixture; and optionally with (c) other compounds having a hydrogen atom reactive to isocyanates in the presence of water and/or other propellant, catalysts, and optionally adjuvants and additives. The polyether mixture (b) comprises: (1) at least 2-8-functional polyetherols based on ethylene oxide and propylene oxide and optionally butylene oxide, of OH number 20-80 mg KOH/g and more than 50% primary OH groups; and (2) at least one castor oil polyetherol based on ethylene oxide and optionally propylene oxide and/or butylene oxide of OH number 50-160 mg KOH/g. An Independent claim is included for a polyurethane foam material having noise damping properties prepared as above.

    Production of sound-absorbing polyurethane foam with adhesive surface, involves reacting polyisocyanate with special polyol mixture containing at least three polyfunctional polyether-ol components
    9.
    发明专利
    Production of sound-absorbing polyurethane foam with adhesive surface, involves reacting polyisocyanate with special polyol mixture containing at least three polyfunctional polyether-ol components 未知

    公开(公告)号：DE19924804A1

    公开(公告)日：2000-11-30

    申请号：DE19924804

    申请日：1999-05-29

    Applicant: BASF AG

    Inventor： ZASCHKE BERND ,  SCHMALER KIRSTEN ,  FALKE PETER

    IPC: C08G18/48 ,  C08G18/72 ,  C08L75/08

    Abstract: A polyether-ol (PEOL) mixture for production of adhesive polyurethane foam comprises: (b1) 2- to 8-functional PEOL based on ethylene and propylene oxides (EO, PO); (b2) PEOL based on EO and PO and/or butylene oxide (BO) and a 2- to 8-functional starter; and (b3) PEOL based on PO and/or BO and less than 30 wt% EO with a 2- to 8-functional starter. A process for the production of sound-absorbing polyurethane (PUR) foam with an adhesive surface by reacting: (a) optionally modified polyisocyanates; with (b) a PEOL mixture and (c) optionally other compounds with isocyanate-reactive hydrogen atoms; in presence of (d) water and/or other blowing agents; (e) catalysts; and (f) optionally other additives. Component (b) comprises: (b1) di- to octa-functional PEOL(s) based on EO and PO, with an OH number of 20-80 mg KOH/g and a primary OH group content of more than 50%; (b2) PEOL(s) based on EO and PO and/or BO with a di- to octa-functional starter, with an OH number of 20-80 and an EO content of more than 30 wt%, in amounts of 10-50 parts by weight; and (b3) PEOL(s) based on PO and/or BO and optionally EO with a di- to octa-functional starter, with an OH number of 30-400 and an EO content of less than 30 wt%. An Independent claim is also included for PUR foam with an adhesive surface, obtained by this process.

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