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    INSULATED PIPE CONTAINING POLYURETHANE FOAM WHICH IS FOAMED BY AN ENVIRONMENTALLY FRIENDLY FOAMING AGENT AND HAS A LOW DEGREE OF BRITTLENESS
    1.
    发明申请
    INSULATED PIPE CONTAINING POLYURETHANE FOAM WHICH IS FOAMED BY AN ENVIRONMENTALLY FRIENDLY FOAMING AGENT AND HAS A LOW DEGREE OF BRITTLENESS 有权

    公开(公告)号：US20220163162A1

    公开(公告)日：2022-05-26

    申请号：US17600180

    申请日：2020-03-31

    Applicant: BASF SE

    Inventor： Gianpaolo Tomasi ,  Roman Laubgan ,  Alex Popov ,  Carsten Ellersiek ,  Christof Grieser-Schmitz

    IPC: F16L59/02 ,  F16L59/04

    Abstract: Described herein is a process for producing a pipe insulated with polyurethane foam, where (a) isocyanates are mixed with (b) polyols, (c) blowing agent including at least one aliphatic, halogenated hydrocarbon compound (c1), made up of from 2 to 5 carbon atoms, at least one hydrogen atom and at least one fluorine and/or chlorine atom, where the compound (c1) includes at least one carbon-carbon double bond, (d) catalyst including N,N-dialkylbenzylamine, optionally (e) chain extenders and/or crosslinkers and optionally (f) auxiliaries and additives to give a reaction mixture, the reaction mixture is applied to a pipe for media and is allowed to cure to give the polyurethane foam. Also described herein is an insulated pipe obtained by such a process and a method of using such an insulated pipe as insulated composite wall pipe for district heating or district cooling networks laid in the ground.

    METHOD FOR PRODUCING INSULATED PIPES
    2.
    发明申请
    METHOD FOR PRODUCING INSULATED PIPES 有权

    公开(公告)号：US20210122134A1

    公开(公告)日：2021-04-29

    申请号：US16617406

    申请日：2018-05-29

    Applicant: BASF SE

    Inventor： Christof Grieser-Schmitz ,  Carsten Ellersiek ,  Alex Popov

    IPC: B32B1/08 ,  B32B27/32 ,  B32B27/40 ,  F16L59/14 ,  B32B5/20 ,  B32B7/12

    Abstract: Described herein is a process for producing insulated pipes including providing a media pipe and a film hose continuously formed from a film or a media pipe and a jacketing pipe, wherein the media pipe is arranged inside the film hose or the jacketing pipe and a slot is formed between the media pipe and the film hose or jacketing pipe, wherein an adhesion promoter is applied to the surface of the media pipe facing the film hose or the jacketing pipe, introducing a polyurethane system at least including an isocyanate component (a) including at least one isocyanate, a polyol component (b), and at least one catalyst into the slot before the adhesion promoter is fully cured, and foaming and curing the polyurethane system. Also described herein are insulated pipes obtainable or obtained by such a process.

    Method for producing insulated pipes
    4.
    发明授权
    Method for producing insulated pipes 有权

    公开(公告)号：US11472152B2

    公开(公告)日：2022-10-18

    申请号：US16617406

    申请日：2018-05-29

    Applicant: BASF SE

    Inventor： Christof Grieser-Schmitz ,  Carsten Ellersiek ,  Alex Popov

    IPC: B05D7/22 ,  B32B1/08 ,  B32B5/20 ,  B32B7/12 ,  B32B27/32 ,  B32B27/40 ,  F16L59/14 ,  C08K5/00

    Abstract: Described herein is a process for producing insulated pipes including providing a media pipe and a film hose continuously formed from a film or a media pipe and a jacketing pipe, wherein the media pipe is arranged inside the film hose or the jacketing pipe and a slot is formed between the media pipe and the film hose or jacketing pipe, wherein an adhesion promoter is applied to the surface of the media pipe facing the film hose or the jacketing pipe, introducing a polyurethane system at least including an isocyanate component (a) including at least one isocyanate, a polyol component (b), and at least one catalyst into the slot before the adhesion promoter is fully cured, and foaming and curing the polyurethane system. Also described herein are insulated pipes obtainable or obtained by such a process.

    Method of improving the physical properties in the production of PSPs (plastic-sheathed pipes)
    5.
    发明授权
    Method of improving the physical properties in the production of PSPs (plastic-sheathed pipes) 有权
    提高PSP（塑料护套管）生产中物理性能的方法

    公开(公告)号：US09261223B2

    公开(公告)日：2016-02-16

    申请号：US13655967

    申请日：2012-10-19

    Applicant: BASF SE

    Inventor： Carsten Ellersiek

    IPC: B29C44/12 ,  F16L59/14

    CPC classification number: F16L59/143 ,  B29C44/1242

    Abstract: The present invention relates to a process for producing insulated pipes, which comprises the steps (A) provision of pipe for a medium and outer pipe, where the pipe for a medium is arranged within the outer pipe and an annular gap having ends E1 and E2 is formed between the pipe for a medium and outer pipe, (B) introduction of a polyurethane system comprising at least one isocyanate component (a) and at least one polyol mixture (b) into the annular gap at the end E1 and (C) foaming and curing of the polyurethane system, wherein the annular gap is closed by means of a cap at the end E2 and this cap has openings having an adjustable size, a cap which has openings having an adjustable size, the use of this cap for producing insulated pipes and also an insulated pipe which can be produced by the above-described process of the invention.

    Abstract translation: 本发明涉及一种用于制造绝缘管的方法，其包括以下步骤（A）：设置用于中管和外管的管，其中介质管布置在外管内，并具有端部E1和E2的环形间隙 （B）将包含至少一种异氰酸酯组分（a）和至少一种多元醇混合物（b）的聚氨酯体系引入到末端E1的环形间隙中，（C）在中间和外管的管之间形成， 聚氨酯体系的发泡和固化，其中通过端部E2处的盖封闭环形间隙，并且该盖具有可调节尺寸的开口，具有可调节尺寸的开口的帽，使用该帽用于生产 绝缘管以及可以通过本发明的上述方法制造的绝缘管。

    PROCESS FOR THE CONTINUOUS PRODUCTION OF FOAMS IN PIPES
    6.
    发明申请
    PROCESS FOR THE CONTINUOUS PRODUCTION OF FOAMS IN PIPES 审中-公开
    管道连续生产工艺流程

    公开(公告)号：US20140020784A1

    公开(公告)日：2014-01-23

    申请号：US13920356

    申请日：2013-06-18

    Applicant: BASF SE

    Inventor： Christof GRIESER-SCHMITZ ,  Carsten Ellersiek

    IPC: B29C44/32 ,  F16L9/12

    CPC classification number: B29C44/32 ,  B29C44/324 ,  B29C44/326 ,  F16L9/121 ,  F16L59/143

    Abstract: The present invention relates to a continuous process for producing an insulated pipe comprising at least one medium pipe, an outer pipe, a layer of at least one polyurethane between the at least one medium pipe and outer pipe and a film tube between the at least one polyurethane and the outer pipe, which comprises at least the steps (A) provision, in a jaw band, of at least one medium pipe and a film tube formed continuously from a film, where the at least one medium pipe is arranged within the film tube in such a way that a gap is formed between the at least one medium pipe and the film tube, (B) introduction of a polyurethane system comprising at least one isocyanate component (a) and at least one polyol (b) into the gap, (C) foaming and allowing to cure of the polyurethane system and (D) application of a layer of at least one material to the film tube in order to form the outer pipe, where the polyurethane system has thixotropic properties.

    Abstract translation: 本发明涉及用于生产绝缘管的连续方法，该方法包括至少一个介质管，外管，至少一个介质管和外管之间的至少一个聚氨酯层，以及至少一个介质管 聚氨酯和外管，其至少包括步骤（A）在颚带中提供由薄膜连续形成的至少一个介质管和薄膜管，其中至少一个介质管布置在膜内 在所述至少一个介质管和所述膜管之间形成间隙的方法，（B）将包含至少一种异氰酸酯组分（a）和至少一种多元醇（b）的聚氨酯体系引入所述间隙 ，（C）发泡并允许固化聚氨酯体系，和（D）将至少一种材料层施加到薄膜管上以形成外管，其中聚氨酯体系具有触变性。

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