Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol comprising a water soluble amylaceous hydrolyzate with a heterocyclic compound comprising the reaction product of glyoxal, urea, and formaldehyde, alone, or in further combination with ethylene glycol, with a solvent, and with an acid effective to control the rate of cross-linking between said polyol and said heterocyclic compound; forming the admixture in a shape and curing the shape to a bonded article.

Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol comprising a water soluble amylaceous hydrolyzate with a heterocyclic compound comprising the reaction product of glyoxal, urea, and formaldehyde, alone, or in further combination with ethylene glycol, with a solvent, and with an acid effective to control the rate of cross-linking between said polyol and said heterocyclic compound; forming the admixture in a shape and curing the shape to a bonded article.

Abstract: Disclosed herein is a method of manufacturing a bonded particulate article by admixing particulate material with a binder system, the binder system being formed by admixing a polyol selected from the group comprising a saccharide, a saccharide polymer, and a glyco protein with a heterocyclic compound of the formula ##STR1## wherein R.sup.1 and R.sup.2 are, independently, aryl of from 6 to 12 carbon atoms, alkyl of from 1 to 6 carbon atoms or substituted alkyl of from 1 to 6 carbon atoms wherein the substituting group is hydroxy, alkoxy of from 1 to 6 carbon atoms, hydroxyalkoxy of from 1 to 6 carbon atoms, cyano, carboxy, carbalkoxy of from 1 to 7 carbon atoms or carbamoyl, or when R.sup.1 is --C.sub.x H.sub.2x --, R.sup.2 is --C.sub.x H.sub.