Salts of polyalkyl vinyl ether maleic anhydride and dental prosthesis
adhesive produced therefrom
    2.
    发明授权
    Salts of polyalkyl vinyl ether maleic anhydride and dental prosthesis adhesive produced therefrom 失效
    聚乙烯醇乙烯基醚和非离子表面活性剂

    公开(公告)号:US5204414A

    公开(公告)日:1993-04-20

    申请号:US548376

    申请日:1990-07-05

    IPC分类号: A61C13/23 A61K6/00 C08F8/44

    CPC分类号: A61K6/0026 C08F8/44

    摘要: Salts of lower alkyl vinyl ether/maleic anhydride are described as active components in dental adhesives. A process for the preparation of these salts is described.The salts are partially neutralized mixed salts of lower alkyl vinyl ether/maleic anhydride copolymers. The neutralization of the copolymer is effected with aluminum, and calcium and/or sodium.

    摘要翻译: 低级烷基乙烯基醚/马来酸酐的盐被描述为牙科粘合剂中的活性成分。 描述了制备这些盐的方法。 盐是低级烷基乙烯基醚/马来酸酐共聚物的部分中和的混合盐。 共聚物的中和由铝,钙和/或钠进行。

    High molecular weight copolymers of maleic anhydride and methyl vinyl
ether
    3.
    发明授权
    High molecular weight copolymers of maleic anhydride and methyl vinyl ether 失效
    马来酸酐和甲基乙烯基醚的高分子量共聚物

    公开(公告)号:US5047490A

    公开(公告)日:1991-09-10

    申请号:US382064

    申请日:1989-07-14

    CPC分类号: C08F216/1416 C08F222/06

    摘要: A process of manufacturing powdered copolymers of maleic anhydride with methyl vinyl ether in a mole ratio of 1:1 and a specific viscosity in a range from 2 to 5 by copolymerization of maleic anhydride with methyl vinyl ether in the presence of radical initiators to initiate polymerization. The process includes mixing maleic anhydride with an excess of about 3 to about 20 mol methyl vinyl ether per mol maleic anhydride and initiating a polymerization reaction with a radical initiator added in a quantity of from about 0.001 to about 1 weight % with respect to the maleic anhydride. The polymerization reaction takes place in the absence of other solvents.

    摘要翻译: 通过在自由基引发剂的存在下使马来酸酐与甲基乙烯基醚共聚来制备马来酸酐与甲基乙烯基醚的摩尔比为1:1,比粘度为2至5的粉末状共聚物的方法,以引发聚合 。 该方法包括将马来酸酐与过量的约3至约20摩尔甲基乙烯基醚/摩尔马来酸酐混合并引发与自由基引发剂的聚合反应,其量为约0.001至约1重量% 酐。 聚合反应在不存在其它溶剂的情况下进行。