METHOD FOR PRODUCING RIGID POLYURETHANE FOAM COMPOSITE ELEMENTS USING MANNICH POLYOLS

    公开(公告)号:CA3086353A1

    公开(公告)日:2019-06-27

    申请号:CA3086353

    申请日:2018-12-11

    Applicant: BASF SE

    Abstract: The present invention relates to a method for producing polyurethane hard foam composite elements containing at least one top layer and a polyurethane hard foam layer, in which method (a) polyisocyanates are mixed with (b) compounds comprising at least two hydrogen atoms reactive with isocyanate groups, optionally (c) flame retardant, (d) propellant, (e) catalyst, and optionally (f) auxiliaries and additives to form a reaction mixture, which reaction mixture is applied to the top layer and cures to form the polyurethane hard foam. The component (b) contains at least one polyether alcohol (b1), produced by alkoxylation of a starter or a starter mixture having a mean functionality of 4 to 8 and a hydroxyl number in the range between 300 and 600 mg KOH/g, at least one aromatic Mannich condensate (b2), which can be alkoxylated, producible by reacting an aromatic compound, which at an aromatic ring carries at least one hydroxyl group and/or at least one -NHR group, where R is any organic group or hydrogen, with one or more aldehydes and/or ketones and one or more primary or secondary amines, and at least one aromatic polyester polyol (b3). The proportion of aromatic Mannich condensate is more than 5% by weight to less than 20% by weight, in relation to the total weight of component (b). The present invention further relates to a polyurethane hard foam composite element that can be obtained in accordance with such a method.

    METODO Y DISPOSITIVO PARA LA APLICACION DE MEZCLAS DE REACCION LIQUIDAS A UNA CAPA DE CUBIERTA.

    公开(公告)号:MX2013007482A

    公开(公告)日:2013-08-15

    申请号:MX2013007482

    申请日:2012-01-04

    Applicant: BASF SE

    Abstract: La invención se refiere a un dispositivo para aplicar mezclas de reacción líquidas a una capa de cubierta, la capa de cubierta siendo movida continuamente y la mezcla de reacción líquida siendo aplicada a la capa e cubierta, el dispositivo consistiendo por lo menos de una tubería (a) que preferiblemente se dispone de manera inmóvil y que se provee con aberturas (b) en la dirección de la capa de cubierta y que se monta por arriba de la capa de cubierta paralela al plano de capa de cubierta y a un ángulo recto a la dirección de movimiento de la capa de cubierta, las aberturas externas siendo localizadas sobre el lado de la tubería que está arriba del borde de la capa de cubierta, en un ángulo de 1 a 50° en la dirección de las mezclas de reacción a una capa de cubierta. La invención además se refiere a un método para producir elementos compuestos, que comprenden la aplicación de mezclas de reacción líquidas a una capa d cubierta por medio de dicho dispositivo, la capa de cubierta siendo movida continuamente y la mezcla de reacción líquida siendo aplicada a la capa de cubierta.

    Method and device for applying liquid reaction mixtures to a cover layer

    公开(公告)号:AU2012204871A1

    公开(公告)日:2013-07-11

    申请号:AU2012204871

    申请日:2012-01-04

    Applicant: BASF SE

    Abstract: The invention relates to a device for applying liquid reaction mixtures to a cover layer, the cover layer being moved continuously and the liquid reaction mixture being applied to the cover layer, the device consisting of at least one pipe (a) which is preferably immovably arranged and which is provided with openings (b) in the direction of the cover layer, and which is mounted above the cover layer parallel to the cover layer plane and at a right angle to the direction of motion of the cover layer, the outer openings being located on the side of the pipe that is above the edge of the cover layer, at an angle of 1 to 50° in the direction of the edge of the cover layer. The invention further relates to the use of said device to produce composite elements and to apply liquid reaction mixtures to a cover layer. The invention further relates to a method for producing composite elements, comprising the application of liquid reaction mixtures to a cover layer by means of said device, the cover layer being moved continuously and the liquid reaction mixture being applied to the cover layer.

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