Method of reducing formaldehyde emissions from formaldehyde cond

Details Method of reducing formaldehyde emissions from formaldehyde cond Method of reducing formaldehyde emissions from formaldehyde cond

1981-09-08

1982-08-24

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521157, 521162, 521187, 521188, 525157, C08J 930

Patent

active

043461816

ABSTRACT:
A method of reducing the formaldehyde emissions from formaldehyde condensation polymers is disclosed. A substance having two or more amide linkages, such as a polyacrylamide polymer is incorporated in the polymer solution immediately or shortly before use, the acrylamide polymer reacting with free formaldehyde in the solution or that generated as a result of hydrolytic breakdown of the formaldehyde condensation polymer. The incorporation of polyacrylamide polymers in a urea-formaldehyde resin solution used in the production of urea-formaldehyde insulating foams is of particular benefit.

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patent: 4005036 (1977-01-01), Stalego
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patent: 4251410 (1981-02-01), Danner et al.
patent: 4265795 (1981-05-01), Sekmokos et al.

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