Polyurethane film-forming dispersions in alcohol-water system
    36.
    发明授权
    Polyurethane film-forming dispersions in alcohol-water system 有权
    聚氨酯成膜分散体在酒精 - 水体系中

    公开(公告)号:US06605666B1

    公开(公告)日:2003-08-12

    申请号:US09627110

    申请日:2000-07-27

    IPC分类号: C08J303

    摘要: A polyurethane dispersion and method of making are provided. The dispersion is stable in an alcohol-water mixture. The dispersion is a reaction product of: (i) at least one oligomeric polyactive hydrogen compound, wherein said compound is an alkyl, aryl, or aralkyl structure optionally substituted in and/or on the chain by N, O, S and combinations thereof, and wherein the compound is insoluble in 50:50 weight percent of said alcohol-water mixture; (ii) at least one polyisocyanate, and (iii) at least one polyactive hydrogen compound soluble in the alcohol-water mixture selected from the group consisting of a compound containing an ionic group, a compound containing a moiety capable of forming an ionic group, a compound containing a polyester, polyether, or polycarbonate group having a ratio of 5 or less carbon atoms for each oxygen atom, and mixtures thereof; and (b) at least one polyfunctional chain extender.

    摘要翻译: 提供聚氨酯分散体和制备方法。 分散体在醇 - 水混合物中是稳定的。 分散体是:(i)至少一种低聚多官能氢化合物的反应产物,其中所述化合物是在N,O,S及其组合中任选地在链中和/或链上取代的烷基,芳基或芳烷基结构, 并且其中所述化合物不溶于50:50重量百分比的所述醇 - 水混合物; (ii)至少一种多异氰酸酯,和(iii)可溶于所述醇 - 水混合物中的至少一种多活性氢化合物,所述醇 - 水混合物选自含有离子基团的化合物,含有能够形成离子基团的部分的化合物, 含有每个氧原子具有5个或更少碳原子比的聚酯,聚醚或聚碳酸酯基团的化合物及其混合物; 和(b)至少一种多官能扩链剂。

    Radiation-curable acrylate/silicone pressure-sensitive adhesive coated
tapes adherable to paint coated substrates
    38.
    发明授权
    Radiation-curable acrylate/silicone pressure-sensitive adhesive coated tapes adherable to paint coated substrates 失效
    可涂覆涂料的可辐射固化的丙烯酸酯/硅氧烷压敏粘合剂涂层胶带

    公开(公告)号:US5907018A

    公开(公告)日:1999-05-25

    申请号:US155476

    申请日:1993-11-19

    摘要: The present invention provides an acrylate/silicone pressure-sensitive adhesive tape having improved adhesion to painted surfaces and low temperature performance. The pressure-sensitive adhesive tape comprises:(a) a pressure-sensitive adhesive layer comprising a polymerized pressure sensitive adhesive composition wherein said pressure sensitive adhesive composition comprises:(I) about 25 to about 99 weight percent of polymer of the formula ##STR1## wherein: X, Y, D, R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and n are defined in the specification;(II) about 1 to about 75 weight percent free radically polymerizable vinyl monomer which is capable of copolymerizing with the polymer wherein said free radically polymerizable monomer comprises:(i) about 5 to about 100 parts by weight of an acidic monomer selected from the group consisting of methacrylic acid, acrylic acid, and mixtures thereof;(ii) about 0 to about 95 parts by weight of an acrylate monomer selected from the group consisting of esters of acrylic acid comprising 4 to 21 carbon atoms and esters of methacrylic acid comprising 5 to 21 carbon atoms and mixtures thereof; based upon 100 parts total by weight of said free radically polymerizable monomer; wherein the weight percentages set forth in elements,(I) and (II) are based upon the total weight of the polymer of element (I) plus the monomer of element (II); and(III) a sufficient amount of a silicate MQ tackifying resin to impart a degree of adhesive tack to the cured composition at the use temperature; and(b) a foam layer which is coated on at least one side with the adhesive layer.The present invention also provides the pressure sensitive adhesive composition and pressure sensitive adhesive.

    摘要翻译: 本发明提供了具有改进的涂漆表面粘附性和低温性能的丙烯酸酯/硅氧烷压敏粘合带。 压敏粘合带包括:(a)包含聚合压敏粘合剂组合物的压敏粘合剂层,其中所述压敏粘合剂组合物包含:(I)约25至约99重量%的下式聚合物其中:X 在说明书中定义了Y,D,R,R1,R2,R3,R4和n。 (II)约1至约75重量%的可自由基聚合的可自由基聚合的乙烯基单体,其能够与聚合物共聚,其中所述可自由基聚合的单体包含:(i)约5至约100重量份的选自 由甲基丙烯酸,丙烯酸及其混合物组成; (ii)约0至约95重量份的选自包含4至21个碳原子的丙烯酸的酯和包含5至21个碳原子的甲基丙烯酸的酯的丙烯酸酯单体及其混合物; 基于100份重量的所述可自由基聚合单体; 其中元素(I)和(II)中列出的重量百分比是基于元素(I)的聚合物与元素(II)的单体的总重量; 和(III)足量的硅酸酯MQ增粘树脂,以在使用温度下赋予固化组合物一定程度的粘合粘合性; 和(b)在至少一侧用粘合剂层涂覆的泡沫层。 本发明还提供了压敏粘合剂组合物和压敏粘合剂。