| 摘要 |
The present invention is directed to a method for adjusting the tack value of a binder material formed from a composition comprising an emulsion that comprises an emulsifiable prepolymer that is the reaction product of (i) an isocyanate compound, (ii) a polyol compound, and (iii) a monol compound, and wherein the method comprises: (a) determining a desired tack profile for the emulsion, wherein the tack profile comprises a tack value ranging from 1 to 4 as measured by the TACK TEST METHOD for a particular time value, and adjusting the reactive group ratio of component (i) to (ii) to achieve the desired tack value profile; (b) introducing water to components (i), (ii), and (iii) to form the emulsion composition; and (c) applying the emulsion composition to a lignocellulosic substrate thereby forming a mixture having a moisture water content ranging from 7% to 25% based on the total weight of the mixture. |
