Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1984-08-03
1985-04-23
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428131, 428280, 428284, 428297, 4283144, 4283184, 428920, B32B 310
Patent
active
045130450
ABSTRACT:
Sheet type felt material comprising 5-20 wt % glass fibers, 40-80 wt % cellulosic fibers, 5-25% binder and 3-20 wt % asphalt. The felt is made on conventional felt making equipment and may be used as siding or roofing underlayment or as facer for foam insulating boards.
REFERENCES:
patent: 3094447 (1963-06-01), Chamberlain
patent: 4214032 (1980-07-01), Csikos et al.
patent: 4472243 (1984-09-01), Bondoc et al.
Bondoc Alfredo A.
Flood Eugene J.
Sieling Frederick W.
Bell James J.
GAF Corporation
Maue Marilyn J.
Mohr J. Gary
Ward Joshua J.
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