25.
    发明专利
    未知

    公开(公告)号:AT553140T

    公开(公告)日:2012-04-15

    申请号:AT04803657

    申请日:2004-12-09

    Applicant: BASF SE

    Abstract: Syntactic polyurethanes are obtainable by reacting a polyisocyanate component a) with a polyol component, the polyol component b) comprising a polyetherpolyol mixture having an average OH number of from 10 to 280 (constituent b1) and an oil based on fatty acids of 6 to 25 carbon atoms or derivatives thereof (constituent b2), in the presence of hollow microspheres c). Furthermore, the syntactic polyurethanes are used for insulating offshore pipes and other parts and equipment used in the offshore sector, and the insulated offshore pipes as such are described.

    Methods for producing composite elements based on foams based on isocyanate

    公开(公告)号:AU2008337524A1

    公开(公告)日:2009-06-25

    申请号:AU2008337524

    申请日:2008-12-15

    Applicant: BASF SE

    Abstract: The method for producing composite bodies, which comprise a cover layer (b) and a hard foam (a) based on isocyanate, comprises continuously moving the cover layer and applying the starting material for the hard foam to the cover layer using fixed tubes (c), which are attached parallel to the cover layer plane and perpendicular to the movement direction to the cover layer and are provided with openings (f) so that they form a straight line. The tubes extend over 80% of the width of the cover layer, where an area of equal width is not covered by the tube at the edges of the cover layer. The method for producing composite bodies, which comprise a cover layer (b) and a hard foam (a) based on isocyanate, comprises continuously moving the cover layer and applying the starting material for the hard foam to the cover layer using fixed tubes (c), which are attached parallel to the cover layer plane and perpendicular to the movement direction to the cover layer and are provided with openings (f) so that they form a straight line. The tubes extend over 80% of the width of the cover layer, where an area of equal width is not covered by the tube at the edges of the cover layer. The tube has a height of 5-30 cm above the cover layer and a diameter of 0.2-5 cm. The inner diameter of the tube is constant from the center to the edges of the tube. The tube is arranged so that the strength of the wall of the tube decreases from the place of the supply of the raw material for the hard foam to their ends in such a way that the ratio of the length of the openings between the place of the supply and the end of the tube is 1.1-20. The length of the openings decreases with one tube from an exterior to the other one, if the raw material is supplied to a side into the tube. The liquid raw material is supplied from the middle to each tube or is supplied at the edge of each tube. The diameter of the openings is 0.5-10 mm. The distance between the openings is 5-200 mm. The diameter and the distance of the openings are equal to the entire length of the tube. The number of openings of each tube is >= 2. The mixing of the components of the liquid raw material takes place in a mixer, which is connected with tubes by supply lines (d, e). Each tube is connected exactly with one supply line. The supply has a diameter of 4-30 mm. The hard foam contains isocyanurate groups. The viscosity of the liquid raw material is 50-2000 mPa s at 25[deg] C. The quantity of the liquid raw material applied on the cover layer is 2-100 kg/minute. An independent claim is included for a device for applying liquid reaction mixtures on a cover layer.

    29.
    发明专利
    未知

    公开(公告)号:DK1431323T3

    公开(公告)日:2008-06-02

    申请号:DK03026095

    申请日:2003-11-13

    Applicant: BASF SE

    Abstract: Isocyanate adducts (I) made by reacting polyisocyanate(s) with compounds containing at least 2 NCO-reactive hydrogens, showing a crystallinity of less than 10 J/g by DSC, and an aromatics content of less than 31 wt.%, given as carbon atoms in aromatic rings. An Independent claim is also included for a method for the production of (I) by reacting (a) at least difunctional isocyanates with (b) compound(s) with at least 2 NCO-reactive H atoms in presence of (c) catalysts, in which (b) comprise (bi) polyether-polyol(s) with a functionality of more than 2.5 and a mol. wt. of more than 300 (preferably 300-1000) and (bii) polyol(s) with a functionality of 1.7-3 and a mol. wt. of more than 1000, and the reaction is carried out with an isocyanate index of less than 200.

    Elementos de material compuesto realizados a base de material de aislamiento térmico, adhesivo y capa de recubrimiento

    公开(公告)号:ES2913842T3

    公开(公告)日:2022-06-06

    申请号:ES19701385

    申请日:2019-01-30

    Applicant: BASF SE

    Abstract: Procedimiento para producir elementos de material compuesto que contienen material de aislamiento térmico (B), y adhesivo (C) y eventualmente al menos una capa de recubrimiento (A), donde el material de aislamiento térmico (B) se adhiere con el adhesivo (C), caracterizado porque el adhesivo (C) es un adhesivo de poliuretano, que puede producirse mediante el mezclado de (a) poliisocianatos, con (b) polioles con al menos dos grupos reactivos frente a isocianatos, (c) agentes de soplado, que contienen agua, y eventualmente (d) agentes de extensión de cadena, (e) catalizadores, y (f) otros agentes auxiliares, donde los polioles (b) contienen polieteroles, y los polieteroles contienen (b1) de 50 a 90 % en peso de al menos un óxido de polialquileno con un índice hidroxilo de 120 a 300 mg KOH/g, partiendo de una molécula de iniciador bifuncional y de una parte de óxido de etileno, referido al contenido de óxido de alquileno, de 60 a 100 % en peso, y de una parte de grupos OH primarios de 50 a 100%, (b2) de 10 a 50 % en peso de al menos un óxido de polialquileno con un índice hidroxilo de 120 a 600 mg KOH/g, partiendo de una molécula de iniciador bifuncional y/o trifuncional y de una parte de óxido de etileno, referido al contenido de óxido de alquileno, de 0 a 40 % en peso, y (b3) de 0 a 30 % en peso de al menos otro óxido de polialquileno con un índice hidroxilo de 100 a 800 mg KOH/g, partiendo de una molécula de iniciador bifuncional a tetrafuncional, que se diferencia de los polieteroles (b1) y (b2), respectivamente referido al peso total de los componentes (b1) a (b3).

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