Paper making and fiber liberation – Processes and products – Mineral fiber
Patent
1977-03-03
1978-10-03
Bashore, S. Leon
Paper making and fiber liberation
Processes and products
Mineral fiber
162190, D21F 1100
Patent
active
041182723
ABSTRACT:
A continuous wet-laid process for making high-strength glass fiber mats is described. In the process, glass fibers of known quantity are fed directly into a water stream of given volume to form a flowing fiber slurry of predetermined fiber consistency. Immediately thereafter, the flow of the slurry is interrupted turbulently to form a uniform fiber dispersion. The dispersion then is conveyed quickly onto a moving mat-forming wire screen to form the desired mat. The water thus-removed is recirculated into the original stream to provide a continuous operation. The process may be used advantageously for making high-strength mats of relatively long glass fibers, which find utility in the manufacture of asphalt roofing shingles, and as backing sheets for vinyl flooring.
REFERENCES:
patent: 2906660 (1959-09-01), Hungerford et al.
patent: 3012929 (1961-12-01), Jackson
patent: 3021255 (1962-02-01), Simpson
patent: 3103461 (1963-09-01), Smith et al.
patent: 3766003 (1973-10-01), Schuller et al.
Scheffel, "Glass, Cer., Quartz Fib. for the Paper Ind." TAPPI, vol. 58, No. 5 (1975) pp. 56-60.
Battista, "Syn. Fib. in Papermak." pp. 116, 117, 278-282.
Matteson Edward J.
Ziegler Bertram Randall
Bashore S. Leon
Chin Peter
GAF Corporation
Katz Walter
Kehm Walter C.
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