Low molecular weight urea-formaldehyde reaction products and...

Details Low molecular weight urea-formaldehyde reaction products and... Low molecular weight urea-formaldehyde reaction products and...

C - Chemistry, Metallurgy

08

G

C08G 12/12 (2006.01) C07C 273/18 (2006.01) C07C 275/14 (2006.01)

Patent

CA 2041264

"LOW MOLECULAR WEIGHT UREA-FORMALDEHYDE REACTION PRODUCTS AND PROCESS FOR THE PREPARATION THEREOF" ABSTRACT OF THE DISCLOSURE Low molecular weight urea-formaldehyde reaction products are provided. Such products exhibit cold water solubility. They find use as a sustained nitrogen-release source for animals and plants. A three-stage process is provided for preparing the reaction products. The first stage comprises reacting urea and formaldehyde in an alkaline, alcoholic solution. Then the solvent is distilled off to form a melt. In the final stage the melt is polymerized to form the cold water soluble, low molecular weight reaction product.

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