Curable compositions that form a polyurea demonstrating elongation properties over a large temperature range
    2.
    发明授权
    Curable compositions that form a polyurea demonstrating elongation properties over a large temperature range 有权
    在大温度范围内形成聚脲的可固化组合物显示伸长性能

    公开(公告)号:US08691929B2

    公开(公告)日:2014-04-08

    申请号:US12948843

    申请日:2010-11-18

    IPC分类号: C08G18/10 C08G18/32 C08G18/50

    摘要: Curable compositions are provided comprising: (a) an isocyanate-functional prepolymer having a weight average molecular weight of 4000 to 15,000; and (b) a curing agent comprising a mixture of polyamines, wherein at least one polyamine has an amine equivalent weight of 125 to 250. The isocyanate-functional prepolymer is a reaction product of a polyisocyanate and either (i) a polyether having primary and/or secondary amino groups or (ii) a mixture of a polyether having primary and/or secondary amino groups and a polyether having hydroxyl groups. Upon curing, the compositions demonstrate a Young's Modulus less than 500 MPa at −40° C., a percent elongation greater than 200% at −40° C., and/or a glass transition temperature less than −20° C., making them ideally suited for use at extreme temperatures.

    摘要翻译: 提供了可固化组合物,其包括:(a)重均分子量为4000至15,000的异氰酸酯官能预聚物; 和(b)包含多胺混合物的固化剂,其中至少一种多胺具有125-250的胺当量。异氰酸酯官能的预聚物是多异氰酸酯和(i)具有伯和/ /或仲氨基或(ii)具有伯氨基和/或仲氨基的聚醚和具有羟基的聚醚的混合物。 在固化时,组合物在-40℃下显示小于500MPa的杨氏模量,在-40℃下的伸长率大于200%,和/或玻璃化转变温度低于-20℃, 它们非常适合在极端温度下使用。

    CURABLE COMPOSITIONS THAT FORM A POLYUREA DEMONSTRATING ELONGATION PROPERTIES OVER A LARGE TEMPERATURE RANGE
    6.
    发明申请
    CURABLE COMPOSITIONS THAT FORM A POLYUREA DEMONSTRATING ELONGATION PROPERTIES OVER A LARGE TEMPERATURE RANGE 有权
    形成聚氨酯在大温度范围内演示延伸性能的可固化组合物

    公开(公告)号:US20120130039A1

    公开(公告)日:2012-05-24

    申请号:US12948843

    申请日:2010-11-18

    IPC分类号: C08G18/00

    摘要: Curable compositions are provided comprising: (a) an isocyanate-functional prepolymer having a weight average molecular weight of 4000 to 15,000; and (b) a curing agent comprising a mixture of polyamines, wherein at least one polyamine has an amine equivalent weight of 125 to 250. The isocyanate-functional prepolymer is a reaction product of a polyisocyanate and either (i) a polyether having primary and/or secondary amino groups or (ii) a mixture of a polyether having primary and/or secondary amino groups and a polyether having hydroxyl groups. Upon curing, the compositions demonstrate a Young's Modulus less than 500 MPa at −40° C., a percent elongation greater than 200% at −40° C., and/or a glass transition temperature less than −20° C., making them ideally suited for use at extreme temperatures.

    摘要翻译: 提供了可固化组合物,其包括:(a)重均分子量为4000至15,000的异氰酸酯官能预聚物; 和(b)包含多胺混合物的固化剂,其中至少一种多胺具有125-250的胺当量。异氰酸酯官能的预聚物是多异氰酸酯和(i)具有伯和/ /或仲氨基或(ii)具有伯氨基和/或仲氨基的聚醚和具有羟基的聚醚的混合物。 在固化时,组合物在-40℃下显示小于500MPa的杨氏模量,在-40℃下的伸长率大于200%,和/或玻璃化转变温度低于-20℃, 它们非常适合在极端温度下使用。

    CURABLE COMPOSITIONS THAT FORM A HIGH MODULUS POLYUREA
    7.
    发明申请
    CURABLE COMPOSITIONS THAT FORM A HIGH MODULUS POLYUREA 审中-公开
    形成高模数聚氨酯的可固化组合物

    公开(公告)号:US20110040016A1

    公开(公告)日:2011-02-17

    申请号:US12557025

    申请日:2009-09-10

    IPC分类号: C08K3/34 C09D175/02

    摘要: Curable, two-package compositions are provided comprising a first and second reactive package. The first reactive package comprises: a) a polyether functional polyamine; b) a polyamine comprising an aspartic ester functional polyamine and/or one or more hindered amines; and c) an aliphatic secondary polyamine. The second reactive package comprises a polyisocyanate having a viscosity of ≦2000 centipoise (cPs) at a temperature≧7° C. The curable composition, upon mixing of the reactive packages at ambient temperature, demonstrates a gel time of less than 120 seconds, and is suitable for use as a mortar or caulk.

    摘要翻译: 提供可固化的双组分组合物,其包含第一和第二反应性包装。 第一反应性包装包括:a)聚醚官能多胺; b)包含天冬氨酸酯官能多胺和/或一种或多种受阻胺的多胺; 和c)脂族仲胺。 第二反应性包装包括在温度≥7℃下具有粘度为n1E; 2000厘泊(cPs)的多异氰酸酯。可固化组合物在环境温度下混合反应性包装时,凝胶时间小于120秒, 适用于砂浆或填缝料。