Producción de espumas que tiene mejores propiedades

    公开(公告)号:CO7160006A2

    公开(公告)日:2015-01-15

    申请号:CO14287282

    申请日:2014-12-31

    Applicant: BASF SE

    Abstract: La presente invención se refiere a una composición para producir una espuma rígida de poliuretano que comprende al menos un poliol que tiene un peso molecular no menor de 1700 g/mol y al menos un agente de soplado como componente A, y al menos un poliisocianato como componente B, donde el al menos un poliisocianato B comprende de 11 a 39,5% en peso de un prepolímero de poliisocianato, sobre la base de un poliéter poliol que tiene un índice de OH de al menos 100 mg KOH/g, a una espuma rígida de poliuretano que se puede obtener por la reacción de esta composición, a un proceso para producir tal espuma rígida de poliuretano, al uso de tal espuma rígida de poliuretano para el aislamiento, en especial para aislamiento de tuberías y también un proceso para producir un tubería aislada.

    PRODUCING FOAMS HAVING IMPROVED PROPERTIES

    公开(公告)号:CA2877942A1

    公开(公告)日:2014-01-09

    申请号:CA2877942

    申请日:2013-06-21

    Applicant: BASF SE

    Abstract: The present invention relates to a composition for producing a polyurethane hard foam material, containing at least one polyol having a molecular weight of at least 1700 g/mol and at least one propellant as component A and at least one polyisocyanate as component B, wherein the at least one polyisocyanate B 11 contains up to 39.5 % by weight of a polyisocyanate prepolymer, based on a polyether polyol comprising a OH number of at least 100 mg KOH/g, to a polyurethane hard foam material, obtainable by conversion of said composition, to a method for producing such a polyurethane hard foam material, to the use of such a polyurethane hard foam material for insulation, in particular for pipe insulation, and to a method for producing an insulated pipe.

    ESPUMA DE PU RIGIDA CON BAJA CONDUCTIVIDAD TERMICA Y BUENA ESTABILIDAD TERMICA.

    公开(公告)号:MX2013010461A

    公开(公告)日:2013-10-28

    申请号:MX2013010461

    申请日:2012-03-21

    Applicant: BASF SE

    Abstract: La invención se refiere a una espuma de poliuretano que puede obtenerse al hacer reaccionar por lo menos un poliéter poliol como el componente (A), por lo menos un poliéter poliol basado en por lo menos una amina como el componente (B), por lo menos un poliéster poliol como el componente (C), y por lo menos un poliisocianato como el componente (D), en la presencia de por lo menos una catalizador seleccionado del grupo que consiste de sales de ácidos carboxílicos con 1 a 20 átomos de carbono, los compuestos que contienen aminas y las mezclas de los mismos, como el componente (E), y por lo menos un agente de soplado como el componente (F), con la proporción de los grupos OCN a los grupos OH (índice ISO) siendo entre 140 y 180. Además, la presente invención se refiere a un método para producir esta espuma de poliuretano, para el uso del mismo para aislamiento, particularmente para aislamiento de tubería y/o un aislador de tubería que contiene una espuma de poliuretano de acuerdo con la invención.

    METHOD FOR IMPROVING PHYSICAL PROPERTIES IN THE MANUFACTURE OF PIPES PREINSULATED WITH PLASTIC

    公开(公告)号:CA2852841A1

    公开(公告)日:2013-04-25

    申请号:CA2852841

    申请日:2012-10-19

    Applicant: BASF SE

    Abstract: The present invention relates to a method for manufacturing insulated pipes, comprising the steps of (A) provisioning a service pipe and a jacket pipe, wherein the service pipe is arranged within the jacket pipe, and an annular gap with ends E1 and E2 is formed between the service pipe and the jacket pipe; (B) introducing a polyurethane system comprising at least one isocyanate component (a) and at least one polyol mixture (b) at end E1 of the annular gap; and (C) the foaming and curing of the polyurethane system, wherein the annular gap is closed at end E2 by a cap, said cap having openings adjustable in size; a cap having openings that are adjustable in size; the use of this cap for the production of insulated pipes; and an insulated pipe, which can be manufactured by the method according to the invention as described above.

    36.
    发明专利
    未知

    公开(公告)号:DK1777051T3

    公开(公告)日:2008-11-10

    申请号:DK06121729

    申请日:2006-10-04

    Applicant: BASF SE

    Abstract: Insulated pipe, comprises a medium pipe; polyurethane-foam material, obtained by reaction of an isocyanate component with a polyol mixture; and jacket pipe, where the polyol mixture comprises at least a polyether polyalcohol, which is obtained by the alkoxylation of saccharose, diethyleneglycol and optionally pentaerythrite and/or glycerin with ethylene oxide and/or propylene oxide, and exhibits a isocyanate functionality of greater than 3, a hydroxyl number of greater than 300 mg of potassium hydroxide (KOH)/g and a viscosity of less than 2500 mPas at 25[deg]C in accordance with DIN 53019. An independent claim is included for the preparation of insulated pipe comprising providing the medium pipe and the jacket pipe, where the medium pipe is arranged within the jacket pipe, and preparing the polyurethane-foam material.

    37.
    发明专利
    未知

    公开(公告)号:DE502006001116D1

    公开(公告)日:2008-08-28

    申请号:DE502006001116

    申请日:2006-10-04

    Applicant: BASF SE

    Abstract: Insulated pipe, comprises a medium pipe; polyurethane-foam material, obtained by reaction of an isocyanate component with a polyol mixture; and jacket pipe, where the polyol mixture comprises at least a polyether polyalcohol, which is obtained by the alkoxylation of saccharose, diethyleneglycol and optionally pentaerythrite and/or glycerin with ethylene oxide and/or propylene oxide, and exhibits a isocyanate functionality of greater than 3, a hydroxyl number of greater than 300 mg of potassium hydroxide (KOH)/g and a viscosity of less than 2500 mPas at 25[deg]C in accordance with DIN 53019. An independent claim is included for the preparation of insulated pipe comprising providing the medium pipe and the jacket pipe, where the medium pipe is arranged within the jacket pipe, and preparing the polyurethane-foam material.

    METHOD FOR PRODUCING INSULATED CASING PIPES IN A CONTINUOUS PRODUCTION PROCESS

    公开(公告)号:CA2857081C

    公开(公告)日:2019-10-29

    申请号:CA2857081

    申请日:2012-11-27

    Applicant: BASF SE

    Abstract: The present invention relates to a continuous process for producing insulated pipes comprising a conveying pipe, a jacketing pipe, a layer made of at least one polyurethane between conveying pipe and jacketing pipe, and a foil tube between the at least one polyurethane and the jacketing pipe, comprising at least the steps of (A) in a gripper-belt system, providing a foil tube formed continuously from a foil, and providing a conveying pipe, where the arrangement has the conveying pipe within the foil tube in such a way that an annular gap is formed between conveying pipe and foil tube, (B) charging a polyurethane system comprising at least one isocyanate component (a) and at least one polyol mixture (b) to the annular gap, (C) foaming the polyurethane system and allowing the same to harden, and (D) applying a layer made of at least one thermoplastic to the foil tube via extrusion, in order to form the jacketing pipe, which comprises using a multiple nozzle system having curvature corresponding to the radius of the annular gap to charge the material in step (B).

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