| 摘要 |
PURPOSE: A tackifying resin is provided to have excellent miscibility with an acrylic polymer together with high softening point, and to be manufactured by continuous process, to have uniform initial adhesion, peeling forth, and cohesive force, and to improve adhesion to material with low surface energy, and thermal resistance. CONSTITUTION: A tackifying resin comprises a polymer obtained from a monomer composition comprising sorbic acid as a natural unsaturated fatty acid having a cyclopentadiene-based monomer, conjugation structure as a repeating unit. The monomer composition comprises 7-100.0 parts by weight of the natural unsaturated fatty acid, based on the cyclopentadiene-based monomer. An acrylic adhesive composition comprises the tackifying resin as a tackifier, and an acrylic polymer as a base resin. |
