Formaldehyde → HCID 86734906, compound

Participants

Reaction Steps

The mixture of polysilicoformic acid, orthosilicoformic acid, silicoformic acid and metasilicic acid as produced in Example IX, 20 parts by weight of urea and potassium carbonate are added until the pH is 8 to 10, mixed, heated to 90° to 150° C. for 20 to 60 minutes, while stirring, thereby producing a mixture of urea disilicate and urea disilicoformate. About 80 parts by weight of an aqueous solution containing 37% formaldehyde is added to said urea disilicate and urea disilicoformate, heated to 80° to 100° C., while stirring, for 30 to 90 minutes or until the desired viscosity is reached, thereby producing poly (formaldehyde urea disilicate urea disilicoformate) resin.

Provenance & Evidence