Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works LtdfiledCriticalMatsushita Electric Works Ltd
Priority to JP18809787ApriorityCriticalpatent/JPS6433349A/en
Publication of JPS6433349ApublicationCriticalpatent/JPS6433349A/en
PURPOSE: To prevent the generation of asbestos dust when a roofing material is cut by manufacturing a part in an asbestos mixed section, in which asbestos is mixed, while preparing other sections in sections capable of being cut, in which asbestos is not mixed. CONSTITUTION: In the cement roofing material 1, a part of the roofing material 1 is manufactured in an asbestos mixed section 2, in which asbestos is mixed, while other sections are prepared in sections 3 capable of being cut, in which asbestos is not mixed. Accordingly, since sections 3 capable of being cut, in which asbestos is not mixed, are cut when the roofing material 1 is cut and used, no dust of asbestos is generated, and asbestos pollution can be prevented.
JP18809787A1987-07-281987-07-28Roofing material
PendingJPS6433349A
(en)
PROCESS FOR THE PRODUCTION OF REFRACTORY MATERIAL, CORROSION-RESISTANT REFRACTORY MATERIALS AND SUITABLE MIXTURE TO BE MOLDED AND BURNED TO FORM A REFRACTORY MATERIAL