Photocurable ionomer cement systems
    134.
    发明授权
    Photocurable ionomer cement systems 失效
    光固化离聚物水泥系统

    公开(公告)号:US5925715A

    公开(公告)日:1999-07-20

    申请号:US967865

    申请日:1997-11-12

    申请人: Sumita B. Mitra

    发明人: Sumita B. Mitra

    摘要: A dental cement system containing a photocurable ionomer, reactive powder and water undergoes both a conventional setting reaction and a photocuring reaction.The cement system can provide a long working time and can be cured on demand by exposure to an appropriate source of radiant energy. The surface of the cement cured in this manner is then hard enough to allow subsequent clinical procedures to be performed, while the ongoing chemical-cure "setting" reaction hardens the remainder of the cement.

    摘要翻译: 含有可光固化离聚物,反应性粉末和水的牙科水泥系统既经历了常规的凝固反应和光固化反应。 水泥系统可以提供长的工作时间,并且可以通过暴露于适当的辐射能源根据需要进行固化。 以这种方式固化的水泥的表面然后足够硬以允许进行随后的临床程序,而正在进行的化学固化“凝固”反应使剩余的水泥硬化。

    Paper coating
    136.
    发明授权
    Paper coating 失效
    纸张涂层

    公开(公告)号:US5759347A

    公开(公告)日:1998-06-02

    申请号:US687324

    申请日:1996-08-05

    摘要: Binders for papercoating slips which permit uniform printability contain a polymer prepared by the seed procedure and comprising from 1 to 49% by weight of a polymer seed A) having a glass transition temperature of from -80.degree. to +25.degree. C. and based on esters of acrylic acid or methacrylic acid, and from 51 to 99% by weight of ethylenically unsaturated monomers B), from 10 to 100% by weight of which monomers are butadiene, the polymer seed A being added before or during the polymerization of the ethylenically unsaturated monomers.

    摘要翻译: PCT No.PCT / EP95 / 00224 Sec。 371日期:1996年8月5日 102(e)日期1996年8月5日PCT提交1995年1月23日PCT公布。 出版物WO95 / 21294 日期1995年8月10日允许均匀印刷性的纸涂布纸的粘合剂包含通过种子程序制备的聚合物,并且包含1至49重量%的玻璃化转变温度为-80℃至+25℃的聚合物种子A) 并且基于丙烯酸或甲基丙烯酸的酯和51至99重量%的烯属不饱和单体B),其中单体为丁二烯的10至100重量%,聚合物种子A在或之前加入 烯属不饱和单体的聚合。

    Aqueous adhesive for bonding elastomers
    139.
    发明授权
    Aqueous adhesive for bonding elastomers 失效
    粘合弹性体的水性粘合剂

    公开(公告)号:US5496884A

    公开(公告)日:1996-03-05

    申请号:US152112

    申请日:1993-11-12

    CPC分类号: C08F36/04 C09J109/10

    摘要: An adhesive composition containing a polyvinyl alcohol-stabilized butadiene polymer latex and a methylene donor compound. The butadiene polymer latex is prepared by an emulsion polymerization in the presence of polyvinyl alcohol. The adhesive composition may also contain other optional ingredients such as a supplemental polymeric film-forming component, a nitroso compound crosslinker, a maleimide compound crosslinker, a vulcanizing agent, and an acid-scavenging compound. The polyvinyl alcohol-stabilized butadiene polymer latex and methylene donor compound combine to provide a tightly crosslinked, robust film which provides for excellent adhesion and environmental resistance.

    摘要翻译: 一种含有聚乙烯醇稳定的丁二烯聚合物胶乳和亚甲基供体化合物的粘合剂组合物。 丁二烯聚合物胶乳通过聚乙烯醇存在下的乳液聚合制备。 粘合剂组合物还可以含有其它任选的成分,例如补充的聚合物成膜组分,亚硝基化合物交联剂,马来酰亚胺化合物交联剂,硫化剂和除酸化合物。 聚乙烯醇稳定的丁二烯聚合物胶乳和亚甲基给体化合物结合在一起提供了紧密交联的坚固的膜,其提供优异的粘附性和耐环境性。

    Hot melt adhesive
    140.
    发明授权
    Hot melt adhesive 失效
    热熔胶

    公开(公告)号:US5441999A

    公开(公告)日:1995-08-15

    申请号:US137599

    申请日:1993-10-15

    摘要: The foregoing and other objects and advantages of the present invention are accomplished by a hot melt adhesive comprising a blend of a low molecular weight polyolefin, olefin-carboxylic acid graft polymer or olefin-maleic anhydride graft polymer or blend thereof; a propylene-ethylene copolymer or propylene-ethylene-butene terpolymer; and a tackifying resin or blend of tackifying resins. The blend can include an antioxidant or blends of antioxidants, a high molecular weight or functionalized polyolefin or a copolymer or terpolymer of a vinyl monomer (e.g., ethylene/vinyl acetate).

    摘要翻译: 本发明的上述和其它目的和优点通过包含低分子量聚烯烃,烯烃 - 羧酸接枝聚合物或烯烃 - 马来酸酐接枝聚合物或其共混物的共混物的热熔粘合剂来实现; 丙烯 - 乙烯共聚物或丙烯 - 乙烯 - 丁烯三元共聚物; 和增粘树脂或增粘树脂的共混物。 共混物可包括抗氧化剂或抗氧化剂,高分子量或官能化聚烯烃或乙烯基单体(例如乙烯/乙酸乙烯酯)的共聚物或三元共聚物的共混物。