Linden Industries Inc./EMB, a polyurethane equipment maker, has installed three carbon dioxide units to a customer in England — unique because they introduce gaseous instead of liquid CO2, and do not require sampling to regulate the level of the gas in the PU.
A patented mechanism in the Linden machines continuously monitors and updates the level of CO2. Linden, of Cuyahoga Falls, Ohio, said that is more accurate than periodic sampling.
Linden did not identify the customer, but said the company adds sound-insulating foam to automotive floor carpeting.
Carbon dioxide has two benefits for this application: cost savings from a reduction in chemicals used and a reduced part weight.
U.S. divisions of the same automotive supplier also use Linden CO2 units. The gas also improves tool wettability, mixing quality and material flow, and eliminates surface defects in high density PU materials, according to the company.
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