Process for the production of urea-formaldehyde adhesives or res

Details Process for the production of urea-formaldehyde adhesives or res Process for the production of urea-formaldehyde adhesives or res

1976-05-03

1978-05-23

De Benedictis, Sr., Thomas

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 67FP, 260603C, C08G 1212, C07C 4516

Patent

active

040909999

ABSTRACT:
This invention relates to a process in which solutions containing from 68 to 70% concentration of formaldehyde are prepared and directly reacted with urea to form urea-formaldehyde adhesives with a solids content of, for example, 65%, without any need for the adhesives or resins obtained to have to be subjected to a final distillation stage.

REFERENCES:
patent: 1744295 (1930-01-01), Ahlbeck
patent: 2204652 (1940-06-01), Bludworth
patent: 2436287 (1948-02-01), Brondyke
patent: 2908715 (1959-10-01), Eguchi et al.
patent: 3113972 (1963-12-01), Kodama et al.
patent: 3277179 (1966-10-01), Sze
patent: 3931063 (1976-01-01), Renner
Miles et al., Polymer Technology (Temple, 1965), pp. 41, 53-55 [TP156P6M5].
Formaldehyde, J. F. Walker, 3rd., (Reinhold, 1968) pp. 16-24, 94-98.

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