发明名称 DOUBLE FACE ADHESIVE TAPE USING VISCOELASTIC SUBSTRATE SHOWING REACTIVITY
摘要 PROBLEM TO BE SOLVED: To obtain the subject adhesive tape that can increase the adhesion strength of the pressure-sensitive adhesive up to the structural bonding strength in no need of any heater or solvent by using a reactive polyurethane polymer including a filler and coating the base material with a pressure-sensitive adhesive on both surfaces. SOLUTION: (A) A viscoelastic base material that is reactive to crosslink with moisture (preferably a reactive polyurethane polymer filled with a filler) is coated with (B) a pressure-sensitive tackifier adhesive composition (preferably an aqueous dispersion of an acrylate copolymer or other aqueous dispersion of a pressure-sensitive adhesive) on its both surfaces. This adhesive tape is produced by feeding the component A into the middle dice slot in the 3-layered dice with a main extruder, then feeding the component B into the upper and lower dice heads with a sub extruder, drying these materials, when necessary, applying peeling paper or peeling film thereto, then cutting and packaging them.
申请公布号 JP2000044898(A) 申请公布日期 2000.02.15
申请号 JP19990206308 申请日期 1999.07.21
申请人 BEIERSDORF AG 发明人 ZIMMERMANN DIETER;KEHLER HARALD DR
分类号 C09J7/02;C09J133/00;(IPC1-7):C09J7/02 主分类号 C09J7/02
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