Cellular urea-formaldehyde resin and method of preparing the sam

Details Cellular urea-formaldehyde resin and method of preparing the sam Cellular urea-formaldehyde resin and method of preparing the sam

1977-10-14

1978-08-15

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260 173, 521188, 521133, C08J 930

Patent

active

041071050

ABSTRACT:
An aqueous solution of urea-formaldehyde prepolymer has improved storage life, and cellular urea-formaldehyde foam prepared by discharging the solution, a curing catalyst, and compressed air into the atmosphere develops fewer shrinkage cracks and is stronger when the solution contains at least 5% glucose, fructose, and/or sucrose.

REFERENCES:
patent: 3313745 (1967-04-01), Klug
patent: 3979341 (1976-09-01), Widmann

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