Epoxy resin, mercato curing agent and polysulfide adduct
    1.
    发明授权
    Epoxy resin, mercato curing agent and polysulfide adduct 失效
    环氧树脂,mercato固化剂和多硫化物加合物

    公开(公告)号:US5128424A

    公开(公告)日:1992-07-07

    申请号:US732078

    申请日:1991-07-18

    IPC分类号: C08G59/66 C09J163/00

    CPC分类号: C08G59/66 C09J163/00

    摘要: Broadly, the present invention is directed to an adhesive composition which comprises an epoxy resin, an effective amount of a mercapto curing agent or curative for said epoxy resin, and a compatibilizing amount of a polysulfide compound which has a performance improving fraction of its --SH groups rendered unreactive with the epoxy groups in said composition. Optionally, the adhesive composition can contain amine or amide curing agents in addition to the mercapto curative. Advantageously, at least about 5% of the number of reactive thiol groups of the polysulfide compound are rendered unreactive, advantageously at least about 25%, and preferably at least about 50%. Preferred polysulfide compatibilizing compounds are adducts of a polysulfide and a component which contains functionality reactive with a thiol group, but which contains no residual functionality reactive with epoxy groups in the composition once the polysulfide adduct is formed. Another aspect of the present invention is a method for improving the performance of an adhesive composition of an epoxy resin and a mercapto curative, which method comprises incorporating a compatibilizing amount of polysulfide compound which has had a performance improving fraction of its --SH groups rendered unreactive with epoxy groups in the composition. The polysulfide compatibilizing adduct is formed by the reaction of a polysulfide and a component that contains functionality reactive with thiol groups, but which contains no residual functionality reactive with epoxy groups in the adduct.

    摘要翻译: 广泛地,本发明涉及一种粘合剂组合物,其包含环氧树脂,有效量的巯基固化剂或所述环氧树脂的固化剂,以及相容剂量的具有-SH的性能提高分数的多硫化合物 所述组合物中的环氧基团不反应。 任选地,粘合剂组合物除了巯基固化剂之外还可含有胺或酰胺固化剂。 有利的是,多硫化物化合物的反应性硫醇基团的数量的至少约5%为非反应性,有利地为至少约25%,优选至少约50%。 优选的多硫化物相容化合物是多硫化物和含有与硫醇基反应的官能团的组分的加合物,但是一旦形成多硫化物加合物,其不含在组合物中与环氧基反应的残余官能团。 本发明的另一方面是提高环氧树脂和巯基固化剂的粘合剂组合物的性能的方法,该方法包括加入相容剂量的多硫化物,其具有不反应的-SH基团的性能提高分数 在组合物中具有环氧基团。 多硫相容化加合物是通过多硫化物和含有与硫醇基反应的官能团的组分的反应形成的,但不包含与加合物中的环氧基反应的残余官能团。

    Microgravity formation of polymeric networks
    4.
    发明授权
    Microgravity formation of polymeric networks 失效
    聚合网络的微重力形成

    公开(公告)号:US5399304A

    公开(公告)日:1995-03-21

    申请号:US900807

    申请日:1992-06-17

    摘要: The present invention is directed to improving thermoplastic and cross-linked polymeric networks. The inventive method comprises forming the polymeric network under gravitational conditions comprising from about 10.sup.-6 to about 10.sup.-2 g. Three modes of energy transfer have been recognized, inter alia, conduction, convection, and radiation. Polymeric networks formed under microgravity conditions (defined herein as gravitational conditions comprising from about 10.sup.-6 to about 10.sup.-2 g) do not obviate conduction and radiation modes of energy transfer. Convection energy transfer, however, is gravity dependent. Thus, convection currents can be suppressed in thermoplastic and cross-linked polymeric networks during network formation by forming the network under microgravity conditions. Suppression of convection currents reduces the incidences of voids in solvent cast thermoplastic polymeric membranes, which forms yet another aspect of the present invention. Particulate-filled thermoplastic and cross-linked polymeric networks will exhibit a more homogeneous distribution of particulates in the network by forming the network under microgravity conditions also, which forms yet a further aspect of the present invention.

    摘要翻译: 本发明涉及改进热塑性和交联聚合物网络。 本发明的方法包括在包含约10-6至约10-2g的重力条件下形成聚合物网络。 已经认识到三种能量转移模式,特别是传导,对流和辐射。 在微重力条件(本文定义为包含约10-6至约10-2g的重力条件)下形成的聚合物网络不消除能量传递的传导和辐射模式。 然而,对流能量转移是重力依赖的。 因此,通过在微重力条件下形成网络,可以在网络形成期间在热塑性和交联聚合物网络中抑制对流。 对流的抑制降低了溶剂浇铸热塑性聚合物膜中空隙的发生率,这形成了本发明的另一方面。 颗粒填充的热塑性和交联聚合物网络将通过在微重力条件下形成网络而在网络中表现出更均匀的颗粒分布,这也形成了本发明的另一方面。

    Non-emissive, flame-retardant coating compositions
    6.
    发明授权
    Non-emissive, flame-retardant coating compositions 失效
    不发射阻燃涂料组合物

    公开(公告)号:US4557870A

    公开(公告)日:1985-12-10

    申请号:US428248

    申请日:1982-09-29

    CPC分类号: C08K5/0008

    摘要: The invention relates to room temperature-curable, non-emissive, flame-retardant coating compositions. The main resin for the coating compositions is a flame-retardant polymer selected from an air dryable flame-retardant polymer, a room-temperature curable mixture of a flame-retardant polymer and curing agent therefor, and mixtures thereof. The solvent for the coating composition is selected from water, a liquid, curable, non-flame promoting solvent and mixtures thereof. The novel liquid, curable, non-flame promoting solvent comprises a liquid polyhalogenated organic ring compound substituted with an air-dryable group.

    摘要翻译: 本发明涉及室温可固化,不发射的阻燃涂料组合物。 用于涂料组合物的主要树脂是选自可空气干燥的阻燃聚合物,阻燃聚合物的室温可固化混合物及其固化剂及其混合物的阻燃聚合物。 用于涂料组合物的溶剂选自水,液体,可固化,非阻燃促进溶剂及其混合物。 新型液体,可固化,非火焰促进溶剂包括被可空气干燥的基团取代的液体多卤代有机环化合物。