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    WEATHER-RESISTIVE BARRIERS FROM SELF COLLAPSING POLYURETHANE FOAMS
    1.
    发明申请
    WEATHER-RESISTIVE BARRIERS FROM SELF COLLAPSING POLYURETHANE FOAMS 有权
    自然凝聚聚氨酯泡沫的耐候性障碍物

    公开(公告)号：US20150144249A1

    公开(公告)日：2015-05-28

    申请号：US14552854

    申请日：2014-11-25

    Applicant: Rohm and Haas Company ,  Dow Global Technologies LLC

    Inventor： Michael D. Bowe ,  Srdjan Kisin ,  Deborah A. Schutter ,  Janah C. Szewczyk

    IPC: B29D99/00 ,  B32B37/14 ,  B32B37/24 ,  B32B38/00

    CPC classification number: B32B37/24 ,  B29C44/18 ,  B29C44/5681 ,  B29K2075/00 ,  B29K2105/04 ,  E04B1/68 ,  E04B1/7604

    Abstract: The present invention provides a self-collapsing, moisture curable one component polyurethane foam (1K PU) composition from moisture curable polyurethane prepolymers and to methods of making weather resistant barriers and formed in place gaskets therefrom. The foam compositions are packed under pressure with a blowing agent. In the methods, the foams are applied to gaps in the exterior (sheathing) of a building under construction and collapse on cure to enable application an aqueous weather barrier coating thereover within an hour. The foams also cure when applied on or adjacent a structure to form a foam gasket that enables installation of additional structural elements over or adjacent the foam gasket without bowing or damage to the structure treated.

    Abstract translation: 本发明提供了一种防湿可固化聚氨酯预聚物的自塌陷性，可湿固化的单组分聚氨酯泡沫（1K PU）组合物，以及制备耐候性屏障并形成垫圈的方法。 泡沫组合物用发泡剂在压力下包装。 在这些方法中，泡沫被施加到正在建造的建筑物的外部（护套）中的间隙，并且在固化时崩溃，以使其在一小时内能够施加水性天气屏障涂层。 当应用在结构上或邻近结构时，泡沫也固化以形成泡沫垫片，其可以在泡沫垫片上或附近安装附加的结构元件，而不会对被处理的结构产生弯曲或损坏。

    Non-Isocyanate Rigid Polymer Foams by Carbon-Michael Addition and Foaming Process
    4.
    发明申请
    Non-Isocyanate Rigid Polymer Foams by Carbon-Michael Addition and Foaming Process 有权
    通过碳 - 迈克尔加成和发泡过程的非异氰酸酯刚性聚合物泡沫

    公开(公告)号：US20140343182A1

    公开(公告)日：2014-11-20

    申请号：US14358825

    申请日：2012-12-20

    Applicant: DOW GLOBAL TECHNOLOGIES, LLC

    Inventor： Xin Jin ,  Steven P. Crain ,  Deborah A. Schutter ,  Kshitish A. Patankar ,  Mark F. Sonnenschein

    IPC: C08J9/14

    CPC classification number: C08J9/146 ,  C08F2222/1026 ,  C08G61/12 ,  C08G2261/135 ,  C08G2261/334 ,  C08G2261/42 ,  C08G2261/76 ,  C08J9/14 ,  C08J2201/022 ,  C08J2201/026 ,  C08J2205/10 ,  C08J2333/14 ,  C08J2365/00 ,  C08J2367/00

    Abstract: Polymer foam is made from a two-component foam system. The foam system includes an A-side component which contains a multifunctional Michael acceptor and a blowing agent that has a boiling temperature in the range −40° C. to +100° C. The system also includes a B-side component that contains a multifunctional carbon-Michael donor, a surfactant and a blowing agent that has a boiling temperature in the range −40° C. to +100° C. The viscosities of each of the components are 2,500 cPs or lower. Foam is made by separately pressurizing the components, then separately depressurizing them so they each at least partially expand. The partially expanded materials are then combined in the presence of a carbon-Michael reaction catalyst to form a reaction mixture which is cured to form the polymer foam.

    Abstract translation: 聚合物泡沫由双组分泡沫体系制成。 该泡沫体系包括含有多官能迈克尔受体和沸点在-40℃至+ 100℃范围内的沸腾温度的发泡剂的A侧组分。该体系还包括B侧组分，其含有 多官能碳 - 迈克尔供体，表面活性剂和沸点为-40℃〜+ 100℃的发泡剂。各组分的粘度为2500cP以下。 泡沫通过单独加压部件制成，然后单独减压，使它们各自至少部分膨胀。 然后将部分膨胀的材料在碳 - 迈克尔反应催化剂存在下合并，形成固化以形成聚合物泡沫的反应混合物。

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