Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1979-06-07
1981-06-30
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428255, 428256, 428489, B32B 700
Patent
active
042763428
ABSTRACT:
A sheet of reinforced tar is produced by repetitively coating a mesh with hot tar until all of the voids in the mesh are filled. The mesh employed may include relatively heavy gauge strands interwoven with light gauge strands to reduce the size of the voids and reduce the number of coatings necessary to produce the sheet; alternatively, a layer of loosely woven material may be combined with the mesh to augment the base for the coatings of hot tar.
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patent: 4035544 (1977-07-01), Iwasaki et al.
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