Title: Heat-insulating agent for molten metal

Abstract: A heat-insulating agent for molten metal comprising a burned material obtained by light-burning a dehydrate of sludge discharged in pulping/or paper-making procedures and a method of insulating a molten metal from loss of heat comprising covering the surface of the molten metal with a layer of the heat-insulating agent.

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Inventors: Takashima, Masaru (Tokyo, JA)

Application Number: 652017
Filing Date: 1976-01-26
Publication_date: 1977-07-26
Assignee: Aikoh Co., Ltd. (Tokyo, JA)
Primary Class(es): 75/303
Other Classes:
US Patent Ref:

2092595	Sep, 1957	Spowers	75/96.
3704230	Nov, 1972	Loricchio	75/58.

Other Refs:
Primary Examiner: Rosenberg, Peter D.
Assistant Examiner:
Attorney: Sughrue, Rothwell, Mion, Zinn and Macpeak