off the binder mix was then sieved through a 45 us mesh sieve and placed in a catch pan the catch pan containing the binder was placed in a dessicator for 3 to 4 hours two parts of isocyanate a with the exception of example 6 where four parts were added were combined with one part sebacic acid in a 32 oz jar and mixed well the isocyanate a sebacic acid was added to the urea in ranges described in the table below and burundum cylinders were added to the 32 oz jar the jar was then rolled on a roller table for 1 to 1 5 hours the container was periodically opened and material clinging to the container walls was scraped off the binder mix was then sieved through a 45 us mesh sieve and placed in a catch pan the catch pan containing the binder was placed in dessicator for 3 to 4 hours particleboard furnish was placed in a stainless steel bowl for use in a kitchenaid ksm90 mixer the binder mixture now semi dried was added in 5 10 g increments in the amounts listed in the table the quantity of wood furnish used in each example was sufficient to provide a total of 100 parts by weight of wood furnish and binder mixture thus examples 1 6 used 92 parts by weight of wood furnish example 7 used 96 parts by weight of wood furnish and example 8 used 95 parts by weight of.