Foam compositions

Details Foam compositions Foam compositions

C - Chemistry, Metallurgy

08

G

403/14, 154/123.

C08G 18/06 (2006.01) B32B 5/18 (2006.01) C08G 18/10 (2006.01) C08G 18/64 (2006.01) C08G 18/83 (2006.01)

Patent

CA 2004446

Foam compositions with improved physical characteristics are made from urethane prepolymers in the presence of various modifying agents. Blowing agents employed in the presence of surfactants make it possible to obtain either open or closed cell structures, and the degree of foam stiffness may be desirably controlled with polyols, as well as with polymeric polymethylene polyphenylisocyanates. Suitable modifying agents include asphalts, portland cement, epichlorohydrin, other epoxidized compounds, additional polymers, and various other materials.

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