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    • 4. 发明授权
    • Method of reducing a content of a residual styrene monomer in a polyol
    • 降低多元醇中残留苯乙烯单体含量的方法
    • US07605216B2
    • 2009-10-20
    • US10985104
    • 2004-11-10
    • Karl R. GustJoseph P. BorstHeinz P. Plaumann
    • Karl R. GustJoseph P. BorstHeinz P. Plaumann
    • C08F4/28C08F4/32C08F12/28C08F20/44C08F12/02
    • C08G63/90C08F6/006C08F283/06C08F212/08
    • A method of reducing a content of a residual styrene monomer in a polyol utilizes a polyol, a peroxide, an adjustment of temperature, and an application of a vacuum to separate the residual styrene monomer from the polyol. The residual styrene monomer is classified as a volatile organic compound. The peroxide includes monoperoxycarbonates and peroxyketals. Peroxide radicals, present in the peroxide, react with and polymerize the residual styrene monomer to form a polymer having decreased volatility. Applying the vacuum physically separates the residual styrene monomer from the polyol by increasing a vapor pressure of the residual styrene monomer. Separating the residual styrene monomer from the polyol forms an improved polyol which includes less than 20 parts per million of the residual styrene monomer in the polyol.
    • 减少多元醇中的残余苯乙烯单体的含量的方法利用多元醇,过氧化物,温度调节,以及真空的应用来分离剩余的苯乙烯单体与多元醇。 将残留的苯乙烯单体分类为挥发性有机化合物。 过氧化物包括单过氧碳酸酯和过氧缩酮。 存在于过氧化物中的过氧化物基团与残留的苯乙烯单体反应并聚合以形成具有降低的挥发性的聚合物。 通过提高残留苯乙烯单体的蒸汽压力,将真空物理分离残留的苯乙烯单体与多元醇。 将残余苯乙烯单体与多元醇分离形成改进的多元醇,其包括少于每百万份多元醇中的残余苯乙烯单体的百分之二十。
    • 7. 发明申请
    • METHOD OF FORMING A GRAFT POLYOL AND POLYURETHANE ARTICLE FORMED FROM THE GRAFT POLYOL
    • 形成由聚酰胺形成的聚酰胺和聚氨酯类的方法
    • US20080071056A1
    • 2008-03-20
    • US11531784
    • 2006-09-14
    • Joseph P. Borst
    • Joseph P. Borst
    • C08G18/00
    • C08G18/632C08F283/00C08F283/006C08F283/06C08F289/00C08F291/00C08G18/4072C08G18/63C08G2101/0008C08G2101/0083C08L51/003C08L51/08C08L2666/02
    • A graft polyol is used to form a polyurethane article including the reaction product of the graft polyol and an isocyanate. The graft polyol is formed from a method including the steps of providing a polymerizable monomer, providing a chain transfer agent, providing a carrier polyol, and providing a free radical initiator. The polymerizable monomer includes styrene and acrylonitrile. The chain transfer agent includes from three to nine carbon atoms, at least one thiol moiety, and at least one hydrophilic moiety. The carrier polyol includes a polyetherol and the free radical initiator includes a diimide. The method also includes the step of combining the polymerizable monomer, the chain transfer agent, the carrier polyol, and the free radical initiator including free radicals. The method further includes the step of reacting the polymerizable monomer and the free radicals to polymerize the polymerizable monomer and form the graft polyol.
    • 使用接枝多元醇形成包含接枝多元醇和异氰酸酯的反应产物的聚氨酯制品。 接枝多元醇由包括提供可聚合单体,提供链转移剂,提供载体多元醇并提供自由基引发剂的步骤的方法形成。 可聚合单体包括苯乙烯和丙烯腈。 链转移剂包括3至9个碳原子,至少一个硫醇部分和至少一个亲水部分。 载体多元醇包括聚醚醚,自由基引发剂包括二酰亚胺。 该方法还包括将可聚合单体,链转移剂,载体多元醇和包含自由基的自由基引发剂组合的步骤。 该方法还包括使可聚合单体和自由基反应以聚合可聚合单体并形成接枝多元醇的步骤。