Ink jet transparency
    2.
    发明授权
    Ink jet transparency 失效
    喷墨透明度

    公开(公告)号:US4547405A

    公开(公告)日:1985-10-15

    申请号:US681205

    申请日:1984-12-13

    IPC分类号: B41M5/00 B41M5/52

    摘要: An ink jet recording sheet comprising a transparent support carrying a layer comprising 5-100% by weight of a coalesced block copolymer latex of polyvinyl alcohol with polyvinyl (benzyl ammonium chloride) and 0-95% by weight of a water-soluble polymer selected from the group consisting of polyvinyl alcohol, polyvinyl pyrrolidone and copolymers thereof.

    摘要翻译: 一种喷墨记录纸,其包含承载包含5-100重量%的聚乙烯醇与聚乙烯醇(苄基氯化铵)的聚结的嵌段共聚物胶乳和0-95重量%的选自以下的水溶性聚合物的层的透明载体: 由聚乙烯醇,聚乙烯吡咯烷酮及其共聚物组成的组。

    Sulphonation process for low crosslinked polystyrene
    5.
    发明授权
    Sulphonation process for low crosslinked polystyrene 失效
    低交联聚苯乙烯的磺化工艺

    公开(公告)号:US5280082A

    公开(公告)日:1994-01-18

    申请号:US37662

    申请日:1993-03-24

    IPC分类号: C08F8/36

    CPC分类号: C08F8/36

    摘要: Crosslinked styrenic polymers may be sulphonated in a controlled manner in an organic solvent at elevated temperature using SO.sub.3 in the presence of a trialkyl phosphate. The process does not introduce further crosslinking into the polymer permitting it to have an extremely high water uptake. The resulting polymer is useful as a hydrogel.

    摘要翻译: 交联的苯乙烯聚合物可以在有机溶剂中,在高温下,在磷酸三烷基酯存在下,使用SO 3,以受控的方式磺化。 该方法不会在聚合物中引入进一步的交联,使其具有极高的吸水率。 所得聚合物可用作水凝胶。