Continous process for producing variable hardness...

Details Continous process for producing variable hardness... Continous process for producing variable hardness...

C - Chemistry, Metallurgy

08

J

18/675

C08J 9/14 (2006.01)

Patent

CA 1086915

A CONTlNUOUS PROCESS FOR PRODUCING VARIABLE HARDNESS POLYURETHANE MOLDED PARTS Abstract of the Disclosure The instant invention generally relates to the continuous production of variable hardness molded polyure- thane foam parts. Hardness of a foam is a function of the density of the foam and the index of the foamable reaction mixture. These variable hardness parts are continuously produced by the controlled addition of an inert blowing agent which directly affects density. These parts may also be pro- duced by utilizing the double effect of controlling both the addition of the blowing agent and the foam index.

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