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134 条记录 (耗时 0.013 秒)

    High molecular weight, homogeneous, branched copolymers of maleic anhydride and alkyl vinyl ether monomers
    91.
    发明授权
    High molecular weight, homogeneous, branched copolymers of maleic anhydride and alkyl vinyl ether monomers 有权
    马来酸酐和烷基乙烯基醚单体的高分子量，均相，支链共聚物

    公开(公告)号：US06252026B1

    公开(公告)日：2001-06-26

    申请号：US09731132

    申请日：2000-12-06

    申请人： Herbert W. Ulmer

    发明人： Herbert W. Ulmer

    IPC分类号： C08F11612

    CPC分类号： A61K6/0026 ,  C08F216/18 ,  C08F222/06 ,  C08L35/08

    摘要： What is described is a high molecular weight homogeneous, branched copolymer of maleic anhydride and a C1-C5 alkyl vinyl ether monomer, in which a branching agent is present in an amount of less than 0.5 wt. % of the polymer. A solution process of making such polymer also is described.

    摘要翻译： 所描述的是马来酸酐和C1-C5烷基乙烯基醚单体的高分子量均相支化共聚物，其中支化剂的存在量小于0.5wt。 ％的聚合物。 还描述了制备这种聚合物的溶液方法。

    Denture adhesive comprising a polymeric activator and methods of preparing the same
    92.
    发明授权
    Denture adhesive comprising a polymeric activator and methods of preparing the same 有权
    含有聚合物活化剂的假牙粘合剂及其制备方法

    公开(公告)号：US06239191B1

    公开(公告)日：2001-05-29

    申请号：US09255905

    申请日：1999-02-23

    申请人： Eddie Wong ,  Hal C. Clarke ,  Robert C. Gasman ,  Alfred J. Smetana ,  Joseph Synodis

    发明人： Eddie Wong ,  Hal C. Clarke ,  Robert C. Gasman ,  Alfred J. Smetana ,  Joseph Synodis

    IPC分类号： A61K506

    CPC分类号： A61K6/0026 ,  C08L35/08 ,  C08L33/08

    摘要： A denture adhesive composition is disclosed and comprises a polymeric activator in an amount of up to about 3 percent by weight based on the total weight of the denture adhesive composition. This composition exhibits enhanced adhesive performance and reduces oozing and incidence of food occlusion. Also disclosed is a method of preparing a denture adhesive composition comprising: preparing a mixture which comprises a polymeric activator in an amount of up to about 3 percent by weight based on the total weight of the denture adhesive composition; forming a denture adhesive composition including the mixture; and recovering the denture adhesive composition. A method of making a denture adhesive composition more adhesive and less oozing is disclosed as well. This method comprises adding to the denture adhesive composition a polymeric activator in an amount of up to about 3 percent by weight based on the total weight of the denture adhesive composition.

    摘要翻译： 公开了一种义齿粘合剂组合物，其包含基于义齿粘合剂组合物的总重量高达约3重量％的量的聚合物活化剂。 该组合物表现出增强的粘合性能并减少渗透和食物闭塞的发生。 还公开了一种制备义齿粘合剂组合物的方法，其包括：基于义齿粘合剂组合物的总重量，制备包含高达约3重量％的量的聚合物活化剂的混合物; 形成包含所述混合物的义齿粘合剂组合物; 并恢复义齿粘合剂组合物。 还公开了使义齿粘合剂组合物更粘并且渗透性更差的方法。 该方法包括以义齿粘合剂组合物的总重量计，将义齿粘合剂组合物加入至多约3重量％的量的聚合物活化剂。

    Solvent-free copolymers of maleic anhydride and alkyl vinyl ethers having a specific viscosity of 0.5 to 5 and method of making
    93.
    发明授权
    Solvent-free copolymers of maleic anhydride and alkyl vinyl ethers having a specific viscosity of 0.5 to 5 and method of making 有权
    具有比例粘度为0.5-5的马来酸酐和烷基乙烯基醚的无溶剂共聚物和制备方法

    公开(公告)号：US06214956B1

    公开(公告)日：2001-04-10

    申请号：US09268834

    申请日：1999-03-16

    申请人： Krystyna Plochocka

    发明人： Krystyna Plochocka

    IPC分类号： C08F22404

    CPC分类号： A61K8/347 ,  A61K8/8164 ,  A61Q11/00 ,  C08F222/06 ,  C08K5/0008 ,  C08L35/08

    摘要： Solvent-free, free-flowing, fine white powders of a copolymer of maleic anhydride and a C1-C4 alkyl vinyl ether having a specific viscosity of about 0.5 to about 5 (1% wt/v in methyl ethyl ketone, 25° C.) and substantially without residue, odor or taste. A solvent-free process of polymerizing the monomers in the presence of 0.01 to 1.9% acetaldehyde also is described.

    摘要翻译： 比例粘度为约0.5至约5（1％wt / v的甲基乙基酮，25℃）的马来酸酐和C1-C4烷基乙烯基醚的共聚物的无溶剂，自由流动的细白色粉末 ），基本上没有残留物，气味或味道。 还描述了在0.01至1.9％乙醛存在下使单体聚合的无溶剂方法。