Using aqueous binders in producing abrasive materials
    3.
    发明授权
    Using aqueous binders in producing abrasive materials 失效
    使用含水粘合剂生产磨料

    公开(公告)号:US07008312B2

    公开(公告)日:2006-03-07

    申请号:US10759240

    申请日:2004-01-20

    摘要: The present invention relates to the use of an aqueous polymer dispersion comprising dispersed particles of at least one polymer A1 having a glass transition temperature, Tg, of from −20° C. to +35° C. and obtainable through free-radical emulsion polymerization in the presence of a polymer A2 synthesized from from 50 to 99.5% by weight of at least one ethylenically unsaturated monocarboxylic and/or dicarboxylic acid whose carboxylic groups can form an anhydride group, or mixtures thereof, from 0.5 to 50% by weight of at least one ethylenically unsaturated compound selected from the esters of ethylenically unsaturated monocarboxylic acids and the monoesters and diesters of ethylenically unsaturated dicarboxylic acids with an amine containing at least one hydroxyl group, and up to 20% by weight of at least one further monomer as binder for producing abrasive material.

    摘要翻译: 本发明涉及包含至少一种玻璃化转变温度Tg为-20℃至+ 35℃的聚合物A1的分散颗粒的聚合物水分散体的使用,可通过自由基乳液聚合获得 在由50至99.5重量%的至少一种其羧基可以形成酸酐基团的烯属不饱和单羧酸和/或二羧酸或其混合物合成的聚合物A2存在下,其浓度为0.5至50重量% 至少一种烯键式不饱和化合物,其选自烯属不饱和单羧酸的酯和烯键式不饱和二羧酸的单酯和二酯与含有至少一个羟基的胺,以及至多20重量%的另外的单体作为粘合剂 生产研磨材料。

    Graft copolymers having anhydride functionality
    6.
    发明授权
    Graft copolymers having anhydride functionality 失效
    具有酸酐官能度的接枝共聚物

    公开(公告)号:US5633091A

    公开(公告)日:1997-05-27

    申请号:US704347

    申请日:1996-08-26

    摘要: An anhydride-functional polymer obtained by reacting under graft copolymerization reaction conditions,(A) an unsaturated polymer which was obtained by reacting under ene reaction conditions a mixture of reactants comprising:(i) an unsaturated anhydride having the structure: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl of 1 to about 6 carbons, or alkoxy of 1 to about 6 carbons, or a halogen; and(ii) at least one polyolefin having at least two carbon-carbon double bonds in the polyolefin backbone and having an average of at least three carbon atoms in the polyolefin backbone between the carbon-carbon double bonds; and(B) at least one ethylenically unsaturated monomer which is copolymerizable with the unsaturated polymer.

    摘要翻译: 通过在接枝共聚反应条件下反应获得的酸酐官能聚合物,(A)不饱和聚合物,其通过在烯类反应条件下使反应物的混合物反应获得,所述反应物包含:(i)具有以下结构的不饱和酸酐:其中R 1 和R 2各自独立地为氢,1至约6个碳的烷基或1至约6个碳的烷氧基,或卤素; 和(ii)至少一种在聚烯烃骨架中具有至少两个碳 - 碳双键并且在碳 - 碳双键之间的聚烯烃骨架中平均具有至少三个碳原子的聚烯烃; 和(B)可与不饱和聚合物共聚的至少一种烯属不饱和单体。

    Process for copolymerization of maleic anhydride with 1-olefins
    8.
    再颁专利
    Process for copolymerization of maleic anhydride with 1-olefins 失效
    马来酸酐与1-烯烃的共聚方法

    公开(公告)号:USRE28475E

    公开(公告)日:1975-07-08

    申请号:US45082274

    申请日:1974-03-13

    摘要: Maleic anhydride and polymerizable liquid 1-olefins having from 4 to 14 carbon atoms are copolymerized employing a liquid-liquid dispersion as the reaction mixture by use of excess liquid 1olefin as a diluent and a minor amount of a copolymer of maleic anhydride with an aliphatic 1-olefin having from 14 to 18 carbon atoms as a dispersing agent. Maleic anhydride and a polymerization initiator becomes dispersed in the mixture of olefin and dispersing agent and polymerization takes place when the temperature is raised to about 80* C. with agitation.