| 摘要 |
PURPOSE:To obtain the titled compsn. capable of providing a cured product having a high solubility in water for easy detachment of a temporarily fixed article, by incorporating a specific prepolymer, a water-soluble monomer having an ethylenic double bond and a polymerization initiator. CONSTITUTION:An intended adhesive composition for temporary fixation is obtained by incorporating a prepolymer having a polymerizable ethylenic double bond at its terminal and containing a polyethylene oxide unit of the formula (wherein n is an integer of 9-25) in its main chain (e.g.: reaction product of polyethylene glycol with tolylene diisocyanate and ethylene glycol), a water-soluble monomer having a polymerizable double bond (e.g.: N-vinylpyrrolidone) and a polymerization initiator (e.g.: benzophenone). The compsn. is advantageously used for temporarily fixing small articles such as a quartz oscillator for mechanical processing thereof. The temporarily fixed articles are easily detachable by simply immersing them in water.
|
