Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1976-06-09
1979-07-31
Van Balen, William J.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
427373, 428171, 428221, 428290, 428310, 428904, B32B 502, B32B 518, D04H 168
Patent
active
RE0300616
ABSTRACT:
This disclosure includes descriptions of nonwoven fibrous webs including a minor amount of a binder securing the interfiber connections to maintain the fiber superstructure and having web densities less than about 0.02 gm./cm..sup.3 which has heretofore been considered about the lowest density attainable. The disclosure also includes a unique method of manufacturing such webs and contemplates the preferred use of an air laid web of fibers thoroughly impregnated with a fluid which includes a small amount of a permanent binder, preferably less than about 10% by weight of the fabric and a very substantial amount of a volatile liquid in the order of 100% by weight of the fabric. The volatile liquid explosively puffs the fibers into a gossamer web not attainable by conventional techniques and the small amount of binder secures the fiber interconnections together to maintain the superstructure.
REFERENCES:
patent: 3025199 (1962-03-01), Harwood
patent: 3100328 (1963-08-01), Allman, Jr. et al.
patent: 3395201 (1968-07-01), Kalwaites
patent: 3403969 (1968-10-01), Kautny et al.
Johnson & Johnson
Minier Robert L.
Van Balen William J.
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