| 摘要 |
The present invention relates to an adhesive sealing film which contains polyisobutylene with a number-average molecular weight of at least 10,000, and a tackifying resin whose carbon double bond content is between 1.6% and 50.0%. According to the durable adhesive sealing film of the present invention, the polyisobutylene is used as an elastomer for high water barrier characteristics, and the tackifying resin with the predetermined range of the carbon double bond content is used for high adhesiveness. The adhesive sealing film of the present invention has high water barrier characteristics and high adhesiveness at the same time. |
