PRODUCTION OF POLYURETHANE FOAM
    3.
    发明专利

    公开(公告)号:JPH11322891A

    公开(公告)日:1999-11-26

    申请号:JP8208599

    申请日:1999-03-25

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To produce a foamed plastic material based on a polyisocyanate polyaddition product by reacting an isocyanate compound with an isocyanate- reacting compound in the presence of a catalyst and optionally an auxiliary and/or an additive. SOLUTION: This method for producing a polyurethane foam comprises reacting an isocyanate compound with an isocyanate-reacting compound in the presence of a catalyst, etc. Therein, (i) an isocyanate having an isocyanurate structure and/or a biuret structure is used as the isocyanate compound. (ii) The isocyanate-reacting compound herein used is at least one kind of diol and/or polyol, having a mol.wt. of 400-8,000 and containing primary hydroxyl groups in an amount of at least 50% based on all hydroxyl groups contained in the compound. (iii) At least one kind of compound having at least one primary amino group, and a diol and/or a triol having a mol.wt. of

    HIGH FUNCTIONAL POLYISOCYANATE
    4.
    发明专利

    公开(公告)号:JP2001323041A

    公开(公告)日:2001-11-20

    申请号:JP2001079024

    申请日:2001-03-19

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain a polyisocyanate useful as a building block made of polyurethane and combining high functionality, high reactivity, low consistency and good properties. SOLUTION: (i) An addition product A is produced by reacting a diisocyanate or a polyisocyanate I with a compound having three or more groups reactive to the isocyanate, a compound having two groups reactive thereto or the mixture of the compounds. A reaction ratio is selected so that the product A containing an average of one group having reactivity to the isocyanate. (ii) A polyaddition product P containing an average of one group having reactivity to the isocyanate and an average of more than two isocyanate groups is formed by an intermolecular addition product. (iii) The high functional polyisocyanate is obtained by reacting the product A and/or the product P with a diisocyanate or a polyisocyanate II.

    POLYURETHANE HIGHLY BRANCHED INTO DENDRITIC STATE

    公开(公告)号:JP2000313732A

    公开(公告)日:2000-11-14

    申请号:JP2000064160

    申请日:2000-02-02

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for simply producing a polyurethane highly branched in a dendritic state, capable of being carried out by using a simply obtainable raw material, especially without compounding a protecting group. SOLUTION: In this method for producing a polyurethane branched in a dendritic state or highly branched by reacting a diisocyanate and/or a polyisocyanate with a compound containing at least two groups to be reactive with isocyanate, at least one reactive substance contains a functional group having reactivity different from that of another reactive substance and a reaction condition is selected so that only fixed reactive groups are mutually reacted in each reaction process.

    POLIURETEANOS DENDRIMEROS Y ALTAMENTE RAMIFICADOS.

    公开(公告)号:ES2235689T3

    公开(公告)日:2005-07-16

    申请号:ES00101039

    申请日:2000-01-20

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de poliuretanos dendrímeros o altamente ramificados mediante reacción de diisociantos y/o poliisocianatos con al menos dos grupos reactivos con isocianatos, caracterizado porque al menos 5 uno de los componentes de reacción muestra grupos funcionales con una reactividad diferente frente al otro componente de reacción y se eligen las condiciones de reacción de tal manera, que reaccionan en cada etapa de reacción respectivamente tan solo determinados grupos reactivos entre sí, y se eligen los diisocianatos del grupo, que contiene 2, 4-toluilendiisocianato, 2, 6-toluilendiisocianato, 2, 4-difenilmetanodiisocianato, triisocianatotolueno, 1, 3- y 1, 4fenilendiisocianato, 1, 5-naftilendiisocianato, tolidindiisocianato, difenildiisocianato, isoforondiisocianato, 2-butil-210 etilpentametilen-diisocianato, 2-isocianatopropilciclohexilisocianato, 4-metil-ciclohexan-1, 3-diisocianato, 2, 4¿-metilenbis(ciclohexil)diisocianato o de sus mezclas.

    7.
    发明专利
    未知

    公开(公告)号:AT289325T

    公开(公告)日:2005-03-15

    申请号:AT00101039

    申请日:2000-01-20

    Applicant: BASF AG

    Abstract: In a process for the production of dendrimeric or highly-branched polyurethanes (PU) by reacting di- and/or poly-isocyanates with NCO-reactive compounds, at least one of the reactants has functional groups with different reactivity towards the other reactant and the reaction conditions are chosen so that only certain groups react together at each stage. Independent claims are also included for dendrimeric PU and highly-branched PU obtained by this process.

    Production of natural fibre-reinforced polyurethane sheet

    公开(公告)号:DE19644017A1

    公开(公告)日:1998-05-07

    申请号:DE19644017

    申请日:1996-10-31

    Applicant: BASF AG

    Abstract: A process for the production of natural fibre-reinforced polyisocyanate-polyaddition products (I) by reacting (A) polyisocyanates with (B) isocyanate-reactive compounds and optionally (C) chain extenders and/or crosslinkers, catalysts, blowing agents and other additives etc. in the presence of natural fibres, in which at least 20 wt% of component (B) consists of ring-opened epoxidised fatty acid compounds and/or adducts of fatty acid compounds and alkylene oxides. Also claimed are (i) fibre-reinforced products (I) obtained by this process, (ii) building, packaging and furnishing materials and vehicle construction materials containing (I), and especially (iii) interior linings for vehicles containing (I). Preferably the modified fatty acid compounds in (B) are based on materials of vegetable origin, especially oleic and/or linoleic acid; preferably, at least 20 wt.% of (B) consists of hydroxylated castor oil. Preferred natural fibres are mixtures of sisal with jute, hemp and/or flax. Preferred (I) is in the form of moulded sheet with a thickness of 1-10 mm, possibly laminated with outer layers.

    COMPOSICION DE SINTESIS DE POLIURETANO ESTABLE AL ALMACENAJE.

    公开(公告)号:ES2237815T3

    公开(公告)日:2005-08-01

    申请号:ES98119497

    申请日:1998-10-15

    Applicant: BASF AG

    Abstract: UNA COMPOSICION SINTETICA DE POLIURETANO, QUE CONTIENE AL MENOS UN POLIMERO (T) QUE SE COMPONE DE AL MENOS LOS SIGUIENTES COMPONENTES, ACTUANDO EL POLIMERO COMO EMULSIONANTE, SIENDO LOS COMPONENTES UN COPOLIMERO BASICO (TR), FORMADO POR TR1) AL MENOS UN ACIDO DICARBOXILICO ETILENICAMENTE INSATURADO DE C SUB,4 HASTA C 12 , SU ANHIDRIDO O SUS MEZCLAS, TP2) AL MENOS UNA OLEFINA DE C 2 HASTA C 40 , UN OXIDO DE POLIALQUILOENO (TP), QUE SE DERIVA DEL COPOLIMERO BASICO, Y QUE ESTA FORMADO POR AL MENOS TP1) AL MENOS UN OXIRANO DESDE C 2 HA STA C 20 , Y TENIENDO COMO OTROS COMPONENTES AL MENOS DOS COMPUESTOS QUE TIENE AL MENOS DOS ATOMOS REACTIVOS DE HIDROGENO (A), DE LOS CUALES AL MENOS UN COMPUESTO ES INSOLUBLE EN OTRO.

    10.
    发明专利
    未知

    公开(公告)号:DE59901697D1

    公开(公告)日:2002-07-18

    申请号:DE59901697

    申请日:1999-03-18

    Applicant: BASF AG

    Abstract: Polyurethane foam is produced by reacting isocyanates with an isocyanurate and/or biuret structure with polyols of molecular weight 400-8000 containing at least 50% primary hydroxyl groups plus compounds with primary amino group(s), optionally low molecular weight diols and/or triols as chain extenders or crosslinkers, tert. amine and metal salt catalysts and water. A process for the production of foam material based on polyisocyanate-polyaddition products by reacting isocyanates with NCO-reactive compounds in the presence of blowing agents, catalysts and optionally additives etc., using (i) isocyanates with an isocyanurate and/or biuret structure; (ii) a di- and/or poly-alcohol(s) with a molecular weight of 400-8000 in which at least 50% of the hydroxyl groups are primary OH groups; (iii) a compound(s) with primary amine group(s), optionally with diols and/or triols with molecular weights of less than 400 as chain extenders and/or crosslinkers; (iv) a tert. amine(s) and/or a metal salt(s) as catalysts; and (v) water. Independent claims are also included for (a) a foam obtained by this process; and (b) a cushion material based on these products.

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