ROOM TEMPERATURE CURABLE POLYMERS AND PRECURSORS THEREOF

    公开(公告)号:US20100249357A1

    公开(公告)日:2010-09-30

    申请号:US12668609

    申请日:2008-07-10

    IPC分类号: C08G18/42 C08G63/00

    摘要: A polyester polyol, referred to hereinafter as a MHMS polyol comprises fatty acid based mer units wherein at least about 80 weight percent of the fatty acid based mer units are from methyl 9 (10) hydroxymethylstearate, or is prepared from an oil having fatty acids or fatty acid esters which are at least about 80 weight percent oleic acid or esters thereof and which has an average hydroxyl functionality of from 1.5 to 4. A reaction product, referred to herein after as MHMS alkoxysilane prepolymer, is produced from at least one such MHMS polyol and at least one isocyanate functional silane. The prepolymer is moisture cured to form a silylated MHMS polymer. The process of preparing a MHMS polyol comprises (A) reacting a fatty acid ester wherein at least about 80 weight percent of the fatty acid esters are methyl 9 (10) hydroxymethylstearate, or are prepared from an oil having fatty acids or fatty acid esters which are at least about 80 weight percent oleic acid or esters thereof with an initiator having at least 2 reactive groups selected from primary hydroxyl groups, amine groups, terminal isocyanate groups, terminal carbonyl groups or a combination thereof. The process of preparing at least one MHMS alkoxysilane prepolymer comprises steps of: (a) supplying at least one MHMS polyol; (b) supplying at least one isocyanate functional silane and (c) admixing the MHMS polyol and isocyanate functional silane or combination thereof, optionally in the presence of at least one catalyst to produce at least one MHMS alkoxysilane prepolymer. A process of preparing at least one silylated MHMS polymer comprises steps of: (a) supplying at least one MHMS alkoxysilane prepolymer; and (b) exposing it to moisture under conditions such that at least one silylated MHMS polymer is formed. Articles comprising the polyol, prepolymer, or polymer include elastomers, sealants, adhesives, coatings and the like.

    Perfluorocyclobutane ring-containing polymers with crosslinking
    47.
    发明授权
    Perfluorocyclobutane ring-containing polymers with crosslinking 失效
    含全氟环丁烷环的聚合物与交联

    公开(公告)号:US5159036A

    公开(公告)日:1992-10-27

    申请号:US673884

    申请日:1991-03-22

    申请人: David A. Babb

    发明人: David A. Babb

    摘要: A crosslinked polymer having perfluorocyclobutane rings is prepared in a process comprising the steps of: (a) contacting monomers having two dimerizable perfluorovinyl groups; (b) exposing the monomers to sufficient heat and for a sufficient time that a (linear) polymer containing perfluorocyclobutane rings is formed; and (c) exposing the polymer to sufficient crosslinking initiating means and for a sufficient time such that crosslinking occurs. Crosslinked polymers, so prepared are novel and have tensile strength and other physical properties enhanced over the properties of the corresponding linear polymer.

    摘要翻译: 制备具有全氟环丁烷环的交联聚合物的方法包括以下步骤:(a)使具有两个可二聚的全氟乙烯基的单体接触; (b)将单体暴露于足够的热量并持续足够的时间,形成含有全氟环丁烷环的(直链)聚合物; 和(c)将聚合物暴露于足够的交联引发装置并持续足够的时间使得发生交联。 如此制备的交联聚合物是新颖的,并且相对于相应的线性聚合物的性能具有增强的拉伸强度和其它物理性能。

    Perfluorocyclobutane ring-containing polymers with crosslinking
    48.
    发明授权
    Perfluorocyclobutane ring-containing polymers with crosslinking 失效
    含全氟环丁烷环的聚合物与交联

    公开(公告)号:US5037918A

    公开(公告)日:1991-08-06

    申请号:US451404

    申请日:1989-12-15

    申请人: David A. Babb

    发明人: David A. Babb

    摘要: A crosslinked polymer having perfluorocyclobutane rings is prepared in a process comprising the steps of: (a) contacting monomers having two dimerizable perfluorovinyl groups; (b) exposing the monomers to sufficient heat and for a sufficient time that a (linear) polymer containing perfluorocyclobutane rings is formed; and (c) exposing the polymer to sufficient crosslinking initiating means and for a sufficient time such that crosslinking occurs. Crosslinked polymers, so prepared are novel and have tensile strength and other physical proeprties enhanced over the properties of the corresponding linear polymer.

    摘要翻译: 制备具有全氟环丁烷环的交联聚合物的方法包括以下步骤:(a)使具有两个可二聚的全氟乙烯基的单体接触; (b)将单体暴露于足够的热量并持续足够的时间,形成含有全氟环丁烷环的(直链)聚合物; 和(c)将聚合物暴露于足够的交联引发装置并持续足够的时间使得发生交联。 如此制备的交联聚合物是新颖的,并且具有比相应的线性聚合物的性能增强的拉伸强度和其它物理性能。