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    Hydrophilic Polyurethane Foam for Liquid Based Cleaning Applications
    6.
    发明申请
    Hydrophilic Polyurethane Foam for Liquid Based Cleaning Applications 审中-公开
    亲水性聚氨酯泡沫用于液体清洁应用

    公开(公告)号：US20150087737A1

    公开(公告)日：2015-03-26

    申请号：US14489537

    申请日：2014-09-18

    Applicant: Dow Global Technologies LLC

    Inventor： Yasmin N. Srivastava ,  Subodh P. Jagtap ,  Venkat S. Minnikanti ,  Rogelio Gamboa ,  Dwight Latham ,  Rajat Duggal

    IPC: C08G18/08 ,  C08G18/10

    CPC classification number: C08G18/10 ,  C08G18/283 ,  C08G18/4837 ,  C08G18/7671 ,  C08G2101/0058 ,  C08G2101/0066 ,  C08G2101/0083 ,  C08G18/48 ,  C08G18/12

    Abstract: A reaction system for forming a hydrophilic polyurethane foam for liquid based cleaning applications includes a composition that has a prepolymer component and an aqueous component. The prepolymer component is a reaction product of an isocyanate component that includes diphenylemethane diisocyanate (MDI) and a polyol component that includes a polyoxyethylene-polyoxypropylene polyol that has an polyoxyethylene content greater than 65 wt %, based on a total weight of the polyoxyethylene-polyoxypropylene polyol. The aqueous component includes at least 60 wt % of water and at least 0.5 wt % of a surfactant, based on a total weight of the aqueous component. A weight ratio of the prepolymer component to the aqueous component in the composition is from 0.5:2 to 2:0.5, the composition has a cream time of less than 20 seconds and a tack free time of less than 7 minutes, and the hydrophilic polyurethane foam for liquid based cleaning applications has a wet tear strength of at least 500 N/m.

    Abstract translation: 用于形成用于基于液体的清洁应用的亲水性聚氨酯泡沫的反应体系包括具有预聚物组分和水性组分的组合物。 预聚物组分是包括二苯基甲烷二异氰酸酯（MDI）和多元醇组分的异氰酸酯组分的反应产物，其包含聚氧乙烯 - 聚氧丙烯多元醇，其聚氧乙烯含量大于65重量％，基于聚氧乙烯 - 聚氧丙烯 多元醇。 含水组分包含至少60重量％的水和至少0.5重量％的表面活性剂，基于水性组分的总重量。 组合物中预聚物组分与水性组分的重量比为0.5:2至2:0.5，组合物的乳化时间少于20秒，粘着时间小于7分钟，亲水性聚氨酯 用于基于液体的清洁应用的泡沫具有至少500N / m的湿撕裂强度。

    Polyisocyanate component, a polyurethane foaming system and an article made therefrom
    7.
    发明授权
    Polyisocyanate component, a polyurethane foaming system and an article made therefrom 有权

    公开(公告)号：US11472910B2

    公开(公告)日：2022-10-18

    申请号：US17044651

    申请日：2018-05-18

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Yanli Feng ,  Weijun Zhou ,  Luigi Bertucelli ,  Rajat Duggal ,  Yibei Gu ,  Wei Liu ,  Davide Micheletti

    IPC: C08G18/42 ,  B32B5/20 ,  B32B15/04 ,  B32B15/095 ,  B32B15/20 ,  C08G18/64 ,  C08G18/76 ,  C08G18/80

    Abstract: A polyisocyanate component, a polyurethane foaming system, and an article made therefrom, wherein the polyisocyanate component includes (a) a preformed mixture including an aromatic oxazolidone compound that is the reaction product of at least one aromatic epoxide and at least one first polyisocyanate having an average isocyanate functionality of no more than 2.7 and greater than 1.8, in the presence of at least one catalyst, the aromatic oxazolidone compound includes at least one free isocyanate group and at least one aromatic oxazolidone group, the aromatic oxazolidone group includes an aromatic group and an oxazolidone group, and (b) at least one second polyisocyanate has an average isocyanate functionality equal to or greater than 2.7 and less than 6.0. The second polyisocyanate is added to the preformed mixture to form the polyisocyanate component. The polyisocyanate component has a viscosity of no more than 4.0 Pa-sat 25° C., an aromatic oxazolidone group content of 2 weight percent to 10 weight percent based on a total weight of the polyisocyanate component, and an average isocyanate functionality of from 1.8 to 6.0.

    EPOXY ELASTOMER COMPOSITIONS
    10.
    发明申请
    EPOXY ELASTOMER COMPOSITIONS 有权
    环氧弹性体组合物

    公开(公告)号：US20140357813A1

    公开(公告)日：2014-12-04

    申请号：US14365701

    申请日：2012-12-20

    Applicant: DOW GLOBAL TECHNOLOGIES LLC

    Inventor： Kwanho Chang ,  Harshad M. Shah ,  Rajat Duggal

    IPC: C08G59/42 ,  C08G59/68 ,  C08G59/20

    CPC classification number: C08G59/4238 ,  C08G59/066 ,  C08G59/184 ,  C08G59/20 ,  C08G59/42 ,  C08G59/686 ,  C08L63/00

    Abstract: An epoxy terminated prepolymer formed as a reaction product of a cycloaliphatic epoxide resin and an amine terminated polymeric polyol, and a catalyst that promotes the reaction of the cycloaliphatic epoxide resin and the aminated polyol. The epoxy terminated prepolymer and an anhydride hardener react to form an epoxy elastomer composition having a microphase separated morphology of hard particles, formed with the anhydride hardener reacted with the epoxy terminated prepolymer, dispersed in a soft continuous phase formed from polymeric polyol in the epoxy terminated prepolymer.

    Abstract translation: 作为脂环族环氧树脂和胺封端的聚合多元醇的反应产物形成的环氧封端预聚物和促进脂环族环氧树脂与胺化多元醇反应的催化剂。 环氧封端预聚物和酸酐固化剂反应形成环氧弹性体组合物，其具有与环氧端基预聚物反应的与酸酐固化剂形成的硬质颗粒的微相分离形态，分散在环氧封端的聚合多元醇形成的软连续相中 预聚物。

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