| 摘要 |
PURPOSE:To produce inexpensively within a short time a pressure-sensitive heat-reactive adhesive paper which does not peel at the interface of the paper and has sufficient adhesive strength. CONSTITUTION:A pressure-sensitive heat-reactive adhesive paper is obtained from an aqueous slurry prepared by mixing 40-95vol.% (in terms of a net polymer weight), based on aramid fibers, particulate epoxy resin with a mixture of meta-oriented aramid fiber subjected to size reduction treatment (chemical treatment) to a freeness (according to the Canadian standard) of 1-500ml with a para-ariented aramid fiber subjected to size reduction treatment (mechanical treatment) under conditions in which the temperature in the drying step is one at which the reactivity of the epoxy resin can be kept, and the weight of the dried film per unit area is 50-500g/m<2>. |
