Aqueous solutions of etherified melamine-formaldehyde resins wit

Details Aqueous solutions of etherified melamine-formaldehyde resins wit Aqueous solutions of etherified melamine-formaldehyde resins wit

1978-04-20

1980-01-15

Woodberry, Edward M.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

528254, C08L 500

Patent

active

041838327

ABSTRACT:
An etherified melamine-formaldehyde resin is disclosed that has prolonged shelf life, comparatively low free formaldehyde content, and is especially adapted as a binder for glass fiber mats. The melamine-formaldehyde resin is prepared in several distinct stages including condensation in a basic aqueous solution, etherification by cooling and acidification, neutralization with triethanolamine, and final stabilization. The free formaldehyde content of the resin so produced can be adjusted by reacting it with urea.

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Chem. Absts., vol. 68:141,40m, Binders for Water-Soluble Baking Paints, Laky.

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