Process for the manufacture of urea-formaldehyde resins containi

Details Process for the manufacture of urea-formaldehyde resins containi Process for the manufacture of urea-formaldehyde resins containi

1990-02-08

1991-04-16

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From aldehyde or derivative thereof as reactant

528232, 528239, 528254, 528256, 428524, 428526, 428528, C08G 1232

Patent

active

050083651

ABSTRACT:
A process for the preparation of a urea-formaldehyde resin exhibiting reduced gel time and improved stability, wherein the resin contains not more than 10% melamine, which is added during the first stage of the reaction with the other reactants, and wherein the reaction is conducted at an acidic pH.

REFERENCES:
patent: 3891590 (1975-06-01), Sundie et al.
patent: 4814422 (1989-03-01), Diem et al.

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