PURPOSE: To obtain a cured product, rapidly curable and having uniform physical properties without foaming by mixing water with a composition containing a specific latent curing agent and an isocyanate group-containing polyurethane prepolymer.
CONSTITUTION: Water is mixed with an isocyanate composition containing (A) a latent curing agent capable of producing an amine by the hydrolysis {preferably a polyaldimine expressed by the formula Y-(-N=CH-X)n (X is 6-15C aryl; Y is 2-15C bi- or trivalent hydrocarbon or bi- or trivalent polyoxyalkylene having 70-6000 molecular weight; n is 2 or 3), e.g. an enamine or a polyketimine} and (B) a polyurethane prepolymer having isocyanate group to cure the isocyanate composition. Furthermore, the water is mixed so as to provide 0.1-10, preferably 0.3-5.0 ratio of the number of amino group equiv. of the polyamine produced in hydrolyzing the component (A) to the number of mol of the water.
KAMIYAMA MASAYUKI
OSADA TOMOHIRO
| JPH01193316A | 1989-08-03 | |||
| JPS4412158B1 | ||||
| JPH04279620A | 1992-10-05 |