Polyurethanes which are dispersible or soluble in water and a process
for their preparation
    81.
    发明授权
    Polyurethanes which are dispersible or soluble in water and a process for their preparation 失效
    可分散或溶于水的聚氨酯及其制备方法

    公开(公告)号:US4303774A

    公开(公告)日:1981-12-01

    申请号:US30600

    申请日:1979-04-16

    摘要: The present invention relates to water soluble or water dispersible polyurethane elastomers which have a substantially linear molecular structure and which contain both ethylene oxide units incorporated in polyether chains and sulphonate groups, characterized in that they contain from about 0.5 to 20% by weight of ethylene oxide units of the formula --CH.sub.2 --CH.sub.2 --O-- arranged within polyether chains and from about 0.1 to 25 milliequivalents, per 100 g of solid, of sulphonate groups of the formula --SO.sub.3.sup..crclbar. in the form of structural units of the formula--O--X--Rarranged in end positions and/or side positions, whereinX represents a polyalkylene oxide chain having from 5 to 90 chain members, at least about 40% of which chain members constitute ethylene oxide units andR represents a monovalent hydrocarbon group having from 3 to 18 carbon atoms containing at least one sulphonate group --SO.sub.3.sup..crclbar. andto a process for their production.

    摘要翻译: 本发明涉及水溶性或水分散性聚氨酯弹性体,其具有基本上线性的分子结构,并且其包含掺入聚醚链和磺酸盐基团的环氧乙烷单元,其特征在于它们含有约0.5-20重量%的环氧乙烷 式-CH 2 -CH 2 -O-的单元,其配置在聚醚链内,约0.1至25毫当量,每100g固体式-SO 3( - )磺酸盐基团,其结构单元为式 - OXR排列在末端位置和/或侧位,其中X表示具有5-90个链成员的聚环氧烷链,至少约40%的链成员构成环氧乙烷单元,R表示一价烃基,其具有3至 含有至少一个磺酸酯基-SO 3( - )的18个碳原子及其制备方法。

    Laminates
    82.
    发明授权
    Laminates 失效
    层压板

    公开(公告)号:US4243719A

    公开(公告)日:1981-01-06

    申请号:US7762

    申请日:1979-01-29

    申请人: Alan Holmes

    发明人: Alan Holmes

    摘要: The present invention provides a reinforced glass laminate, comprising a non-hydrophilic synthetic resin, at least one surface of which has been rendered hydrophilic by bonding thereon a layer of a hydrophilic material, a layer of hydrophilic synthetic resin being bonded to said layer of hydrophilic material and a layer of glass being bonded to said layer of hydrophilic synthetic resin.The present invention also provides a process for producing a reinforced glass laminate, wherein a non-hydrophilic synthetic resin is coated with a solution capable of forming a layer of a hydrophilic material thereon, the solvent medium is then removed, a hydrophilic synthetic resin is placed on the layer of hydrophilic material and glass is then placed on the hydrophilic synthetic resin, whereafter bonding together of the layers is achieved either by applying an increased pressure at an elevated temperature or by heating under reduced pressure.

    摘要翻译: 本发明提供了一种强化玻璃层压体,其包括非亲水性合成树脂,其至少一个表面通过在其上粘合亲水材料层而形成亲水性,亲水合成树脂层与所述亲水性层结合 材料和一层玻璃结合到所述亲水性合成树脂层上。 本发明还提供了一种制造强化玻璃层压体的方法,其中非亲水性合成树脂涂覆有能够在其上形成亲水材料层的溶液,然后除去溶剂介质,将亲水性合成树脂放置 然后将亲水材料层和玻璃放置在亲水合成树脂上,然后通过在升高的温度下施加增加的压力或通过在减压下加热来实现粘合在一起的层。