Porous fibrous web to a substrate and articles therefrom

Details Porous fibrous web to a substrate and articles therefrom Porous fibrous web to a substrate and articles therefrom

1975-10-30

1978-01-24

Kinsey, Russell R.

Surgery

Respiratory method or device

Ozone or ion generation

156 91, A61F 542

Patent

active

040698220

ABSTRACT:
A method of bonding a fluid-porous, fibrous, woven or non-woven web to a substrate and products made thereby. The porous web is overall or pattern coated with an extremely low level of hot-melt adhesive by causing the hot-melt adhesive to be wiped from a controlled thickness hot-melt adhesive source by the individual projecting surface fibers and fiber junctions of the porous web. Hot-melt adhesive globules are formed on the individual projecting surface fibers and fiber junctions which, when the porous web and substrate are passed through a preset clearance nip roll assembly, provide a product wherein the porous web is bonded to the substrate with excellent bond strength, the porous web remaining flexible and completely transparent to fluid transmission.

REFERENCES:
patent: 3505083 (1970-04-01), Schelhorn
patent: 3595235 (1971-07-01), Jesperson
patent: 3766922 (1973-10-01), Krusco
patent: 3888257 (1975-06-01), Cook
patent: 3913580 (1975-10-01), Ginocchino
patent: 3923592 (1975-12-01), George et al.

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