Curing of polysulphides
    2.
    发明授权
    Curing of polysulphides 失效
    固化多糖

    公开(公告)号:US5177182A

    公开(公告)日:1993-01-05

    申请号:US572941

    申请日:1990-11-05

    IPC分类号: C08L81/04 C08G75/14

    CPC分类号: C08G75/14

    摘要: A process for the manufacture of a partially cured polysulphide composition is provided, the curing of which is completed upon exposure of the composition to atmospheric moisture. The process comprises mixing a prepolymer with a water activatable curing agent and subjecting the composition to a partial cure with water. The reaction is then stopped by rapid dehydration after the initial induction stage of the reaction prior to the rapid increase in the viscosity of the composition. Curing of the composition is then completed by exposing the composition to atmospheric moisture.

    Single-component polysulphide based sealant compositions
    3.
    发明授权
    Single-component polysulphide based sealant compositions 失效
    单组分多硫化物基密封剂组合物

    公开(公告)号:US5409985A

    公开(公告)日:1995-04-25

    申请号:US200873

    申请日:1994-02-22

    IPC分类号: C08G75/14 C08K3/34

    CPC分类号: C08G75/14

    摘要: A one-part polysulfide sealant composition comprises a mercaptan-terminated liquid polysulfide, an oxidising agent to cure the catalyst a desiccant such as a molecular sieve, to keep the composition dry and thus prevent premature activation of the catalyst, and a cure accelerator having an acrylate or methacrylate functionality of 2 or more, preferably an acrylated liquid polysulfide or a polyfunctional methacrylate monomer. The use of this accelerator avoids the need for toxic amounts of barium oxide desiccant and substantially shortens the tack-free time on curing.

    摘要翻译: 一部分多硫化物密封剂组合物包含硫醇封端的液体多硫化物,用于使催化剂固化干燥剂如分子筛的氧化剂,以保持组合物干燥并因此防止催化剂的过早活化,以及具有 丙烯酸酯或甲基丙烯酸酯官能度为2以上,优选丙烯酸酯化的液体多硫化物或多官能甲基丙烯酸酯单体。 使用这种促进剂避免了对有毒量的氧化钡干燥剂的需要,并且大大缩短了固化时的无粘性时间。

    INSULATION APPARATUS AND METHOD
    4.
    发明申请
    INSULATION APPARATUS AND METHOD 审中-公开
    绝缘装置和方法

    公开(公告)号:US20110036034A1

    公开(公告)日:2011-02-17

    申请号:US12735646

    申请日:2009-01-30

    申请人: Raymond Robinson

    发明人: Raymond Robinson

    IPC分类号: E04B1/74 B23P13/04

    摘要: The apparatus for supporting insulation (5) comprising a base portion, at least one side wall (3′) and at least one supporting flange (2). In an in use position the at least one side wall is substantially perpendicular to the base portion and in a storage position the at least one side wall and the at least one supporting flange are substantially parallel to the base portion. An insulation system and a method of insulating a structure using such apparatus.

    摘要翻译: 用于支撑绝缘的装置(5)包括基部,至少一个侧壁(3')和至少一个支撑凸缘(2)。 在使用位置中,至少一个侧壁基本上垂直于基部,并且在存储位置中,至少一个侧壁和至少一个支撑凸缘基本上平行于基部。 绝缘系统和使用这种装置来隔离结构的方法。

    Polysulfide sheeting
    5.
    发明授权
    Polysulfide sheeting 失效
    多硫化物片

    公开(公告)号:US4897443A

    公开(公告)日:1990-01-30

    申请号:US139993

    申请日:1987-12-31

    CPC分类号: C08K3/04 C08K3/22

    摘要: Polysulfide sheeting is prepared by mixing a curable polysulfide oligomer or polymer, carbon black, and manganese dioxide as a hardening catalyst; forming the composition into a sheet; and curing the sheet at an elevated temperature. The sheeting has unusually high short-term heat resistance, so it will not lose its watertightness when coated with hot-laid asphalt at 240.degree. C. It has better resistance to ultraviolet light than conventional polysulfide sheeting, and good penetration and compression set resistance. The sheeting can be laminated to a reinforcing layer, if desired. A continuous waterproofing layer can be formed by laying pieces of the sheeting in overlapping relation, placing an uncured polysulfide rope between the overlapping edges of adjacent pieces of sheeting, and curing the rope, thus joining the pieces to form an integral sheet. Such waterproof layers can be incorporated into paving for bridges, roofs, and other structures.

    摘要翻译: 通过混合可固化多硫化物低聚物或聚合物,炭黑和二氧化锰作为硬化催化剂制备多硫化物薄片; 将组合物形成片材; 并在升高的温度下固化片材。 片材具有非常高的短期耐热性,因此在240℃下涂布热敷沥青时不会失去其防水性。它比常规多硫化物薄膜具有更好的抗紫外线能力,以及良好的穿透和抗压缩变形性。 如果需要,片材可以层压到加强层上。 连续防水层可以通过以相互重叠的方式铺设片材而形成,将未固化的多硫绳放置在相邻的片材的重叠边缘之间,并固化绳索,从而连接件以形成整体的片材。 这种防水层可以结合到桥梁,屋顶和其他结构的铺路中。