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    • 8. 发明授权
    • Radiation-curable acrylate/silicone pressure-sensitive adhesive coated
tapes adherable to paint coated substrates
    • 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
    • US5907018A
    • 1999-05-25
    • US155476
    • 1993-11-19
    • Mieczyslaw H. MazurekDavid J. KinningSteven S. Kantner
    • Mieczyslaw H. MazurekDavid J. KinningSteven S. Kantner
    • C08F299/08C08F290/00C09J4/00C09J4/02C09J4/06C09J7/02C09J183/00C09J183/08C09J183/12
    • C09J7/0289C09J4/06C09J7/0207Y10T428/249983Y10T428/249985Y10T428/2809Y10T428/2852Y10T428/2891
    • 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.
    • 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。