| 摘要 |
The adhesive compound containing 100 parts of acrylic resin by weight and 0.01 to 5 parts of cross to linking agent by weight is formed into sheet to like shape. The acrylic resin is a copolymer containing the (A to 1) to (A to 3) monomer mixture, with the weight to average molecular weight ranging from 1million to 2 million. During the formula (I), R1 refers to hydrogen atom or aralkyl and can be substituted by -0-(C2H4O)n-R3yl; n refers to 0 or an integer ranging from 1 to 4; and R3 refers to alkyl or aryl, with the weight of the shown (methyl) acrylate ranging from 94.8 to 99.89 percent. (A to 2) comprises the (methyl) acrylic acid series monomer of the hydroxyl, with the weight percentage ranging from 0.1 to 5%. During the formula (II), R4 refers to hydrogen atom or methyl; A refers to the biradical group of the C2 to 4; the weight percentage of the (methyl) acrylate containing carboxyl (A to 3) ranges from 0.01 to 0.2. |
