Insta-foam Products, Inc.

Gina Pietrzyk

Deborah A Schutter

Robert G Braun

Jess Maruri Garcia

Dawn Kissack

The present invention discloses a foam frothing alternative for blowing or frothing single component foams using gases which are incapable of being liquified within the limits of DOT aerosol cans, referred to herein as non-liquefiable gases. In this invention, it is demonstrated that non-liquefiable gases such as CO.sub.2 and N.sub.2 O can be used to provide foams using conventional single component foam chemical raw materials. The present invention provides an adhesive/sealant, expanded by a non-liquefiable gas propelled from a container initially and expanded by a blowing agent consisting primarily or exclusively of a non-liquefiable gas and formulated from a moisture curable polyurethane prepolymer using a low molecular weight isocyanate of two or more functionality. In one or more variations, the compositions of the present invention contain solubility enhancers for non-liquefiable gases such as CO.sub.2 or supplemental propellants/liquefiable blowing agents, as well as other additives such as, for example, catalysts, fire retardants, and surfactants which include, but are not limited to cell openers.

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Darien, IL, United States of America

Gina Pietrzyk