| 摘要 |
FIELD: chemical industry. SUBSTANCE: described is adhesive composition comprising water-containing polyol component containing 0.25-2.0 wt % and polyisocyanate component based on diphenylmethane diisocyanate. Water-containing polyol component is mixture consisting of 60-90 wt % of di-and trifunctional polyether with OH number of 28-600 prepared by reaction of ethylene oxide and/o propylene oxide with glycols and trihydric alcohols, 0.01-15 wt % of hydroxyl containing polyether with OH number of 200-300, 5-20 wt % of glycol having molecular weight of 62-200, 5-20 wt % of water and 0.5-3.0 wt % of activator. Quantitative amounts of said components are such that they make it possible to attain isocyanate index of 120-250. EFFECT: processibility of the adhesive composition is not more than 10 hours. 3 cl, 2 ex |
