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    POLYURETHANE FOAM FROM HIGH FUNCTIONALITY POLYISOCYANATE
    2.
    发明申请
    POLYURETHANE FOAM FROM HIGH FUNCTIONALITY POLYISOCYANATE 审中-公开

    公开(公告)号：US20180244833A1

    公开(公告)日：2018-08-30

    申请号：US15758565

    申请日：2016-10-19

    Applicant: Dow Global Technologies LLC

    Inventor： Kshitish A. Patankar ,  Mark F. Sonnenschein ,  Steven P. Crain ,  Christina A. Rhoton

    IPC: C08G18/76 ,  C08G18/42 ,  C08G18/48

    Abstract: A formulation system contains: (a) a pre-polymer reaction product of a polymeric isocyanate and a polyether polyol, where: (i) the polymeric isocyanate contains five weight-percent or more methylene diphenyl diisocyanate; (ii) the polymeric isocyanate has a functionality of 3.0 or less; (iii) the polyether polyol is present in the pre-polymer at a concentration of one to 25 weight-percent; (iv) the polyol has an equivalent weight of 50 to 500 grams per equivalent; (v) the —NCO concentration of the pre-polymer is 15 to 31 weight-percent; (vi) the pre-polymer is free of isocyanate trimers; (b) a polyester polyol component containing 10 to 25 weight-percent of free glycol; and (c) a blowing agent that contains less than five weight-percent water; where the ratio of pre-polymer and polyester result in foam having a trimer content of 12 to 22 weight-percent, and an —NCO index of more than 300 and less than 700.

    Non-Isocyanate Rigid Polymer Foams by Carbon-Michael Addition and Foaming Process
    5.
    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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