Foams based on low formaldehyde-emission urea-formaldehyde resin

Details Foams based on low formaldehyde-emission urea-formaldehyde resin Foams based on low formaldehyde-emission urea-formaldehyde resin

1982-05-14

1984-08-21

Kight, III, John

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521187, C08J 930

Patent

active

044670540

ABSTRACT:
Composition based on a urea-formaldehyde polycondensate, suitable for the preparation of solid foams to be used as thermal insulating materials, characterized in that said composition contains hexamethylenetetramine in quantities comprised between 2% and 15% by weight with respect to the content of dry product of the composition.

REFERENCES:
patent: 2168981 (1936-08-01), Flood
patent: 2323831 (1939-01-01), Menger
patent: 2625524 (1951-12-01), Kvalnes
patent: 2789095 (1952-11-01), Lindvig
patent: 3979341 (1976-09-01), Widmann
patent: 4092277 (1978-05-01), Moore
patent: 4225680 (1980-09-01), Williams

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