Alternative to CFCs in blowing flexible PU foam

Gusmer-Admiral Inc. has developed new technology that uses liquid carbon dioxide as a blowing agent in the manufacture of flexible polyurethane foam products.

The process introduces a stream of liquid CO2 directly into the mixing head, rather than pre-blending it with a polyol before it is injected into the mixing chamber. This allows the molder to start and stop injections of short duration, without altering the CO2 in the reacting mixture and without re-circulating CO2 back to the machine day tank.

Japanese manufacturers are currently using the new mixing head, and have found it reliable and affordable, according to Gusmer-Admiral.

Gusmer-Admiral Inc.

303/253-1353

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