Polyurethane sound deadening material

Details Polyurethane sound deadening material Polyurethane sound deadening material

C - Chemistry, Metallurgy

08

K

400/5515, 400/74

C08K 3/00 (2006.01) C08G 18/10 (2006.01) C08K 3/08 (2006.01) C08K 3/26 (2006.01) C08K 3/30 (2006.01) C08L 57/00 (2006.01) C08L 75/04 (2006.01) C08L 75/08 (2006.01)

Patent

CA 1226085

A sound deadening material is obtained with a very high loading of sound damping materials such as barium sulfate, calcium carbonate or metal powders. These materials are mixed with water and are bound together by adding a water-miscible isocyanate-terminated prepolymer which reacts with the water to form a cross-linked binder.

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