| 摘要 |
PURPOSE:To enable adhesion for a long time and prevent separating off, etc. by forming the pressure sensitive adhesive of a double coated tape for installing a molding on an automobile body with an acrylic polymer, a polyol, and a polyisocyanate. CONSTITUTION:A side molding 2 is bonded to an automobile body 1 by means of a pressure sensitive adhesive double coated tape 3. A pressure sensitive adhesive consisting of an acrylic polymer containing active hydrogen, a polyol, and a polyisocyanate is used for the base material 4 of the adhesive tape 3. The copolymer, etc. of butyl acrylate and acrylic acid is used as the polymer containing active hydrogen, polyethylene glycol, glycerin, etc. is used as the polyol, and polyurethane polymer, etc. having isocyanate group is used as the polyisocyanate. Thereby, an adhesion which is stronger than the rupture strength of the base material 4 of the double coated tape can be obtained for a long time, preventing the separation, etc. of the molding. |
