专利名称：Deicing compositions发明人：Charles N. Hansen申请号：US06/933860申请日：19861124公开号：US04698173A公开日：19871006
摘要：A deicing material which is not corrosive to reinforcing steel or aluminum inoverpasses and bridges consists essentially of ammonium carbamate and may becombined with urea production by-products or certain alkalis.
申请人：HANSEN; CHARLES N.
代理机构：Dowell & Dowell
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