Urea-aldehyde resins

Details Urea-aldehyde resins Urea-aldehyde resins

1977-06-06

1978-12-12

De Benedictis, Sr., Thomas

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

Synthetic resins

From reactant having at least one -n=c=x group as well as...

528 69, 528 76, 528245, 528246, 528264, C08G 1212, C08G 1402

Patent

active

041297164

ABSTRACT:
A novel polyether containing urea-aldehyde resin useful in plastics, sealants, molds, foams and coatings. The novel composition comprises the condensation product of a ureido-terminated polyoxyalkylene and an aldehyde. The ureido terminated polyoxyalkylene compound is prepared by reacting a primary amine terminated polyoxyalkylene with urea at temperatures in the range of about 120.degree. C to about 160.degree. C in a molar ratio of about 1 molecule of urea for each primary amino group.

REFERENCES:
patent: 2858295 (1958-10-01), Melamed
patent: 3184423 (1965-05-01), Schlack
patent: 3324082 (1967-06-01), Sonnabend
patent: 3324176 (1967-06-01), Kirschnek et al.
patent: 3654370 (1972-04-01), Yeakey

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